Verilink SCC 2020 User Manual

October 1999 P/N 880-503268-001-B1

SCC

2020

5

7

FUNCTION

EXE

EQPT

STAT

NET

CRAFT

EQPT

IN

OUT

NET

IN

OUT

NET

MON

EQPT

Copyright Notice

Trademarks

FCC Requirements

its products or services. Verilink’s sole warranty is contained in its product warranty. The end-user documentation is shipped with Verilink’s products and constitutes the sole specifications referred to in the product warranty. Verilink has made reasonable efforts to verify that the information contained herein is accurate, but Verilink assumes no responsibility for its use or for any infringement of patents or other rights of third parties that may r esult. T he customer is sole ly resp onsible fo r veri fying the suitabil ity of Verilink’s products for its use. Specifications are subject to change without notice.

Verilink is a registered trademark of Verilink Corporation. Access System 2000, WANscope, VeriStats, and FrameStart are trademarks of Verilink Corporation.

Any named products herein are trademarks of their respective companies. This equipment has been tested and found to comply within the limits for a Class A

digital device pursuant to Part 15 of the Federal Commun ications Commission (FCC) rules. These limits are designed to provide protection against harmful interference in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the user manual, can cause harmful interference to radio communications.

There is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception—which can be determined by turning the equipment off and on—try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with Part 68 of the FCC Rules. On the rear, side or bottom of the unit is a label that contains the FCC registration number and other information. If requested, provide this information to the telephone company.

• All direct connections to the network lines must be made using standard plugs and jacks (compliant wi th Part 68). The following tables list the applicable registration jack universal order codes (USOCs), facility interface codes (FICs), and service order codes (SOCs). These are required to order service from the telco.

For T1 interfaces:

Port ID REN/SO C FIC USOC

1.544 Mbit/s SF

1.544 Mbit/s SF, B8ZS

1.544 Mbit/s ANSI ESF

1.544 Mbit/s ANSI ESF, B8ZS

For DDS interfaces:

Port ID REN/SO C FIC USOC

56 kbit/s 64 kbit/s

• If the unit appears to be malfunctioning, inform the telco and disconnect it from the network lines until the source of trouble is determined to be your equipment or the telephone line . If your equipment needs repair, it should not be reconnected until it is repaired.

• The unit has been designed to prevent harm to the network. If the telephone company finds that the equipment is exceeding tolerable parameters, it can temporarily disconnect service. In this case, the telephone company will provide you advance notice if possible.

ii

Verilink SCC 2020 User Manual

6.0N 04DU9 -BN

6.0N 04DU5 -56

04DU9 -DN 04DU9 -1KN 04DU9 -1SN

04DU5 - 64

RJ-48C jack

RJ-48S jack

Lithium Battery

• If the telephone company alters its equipment in a manner that can affect the use of this device, it must give you warning so that you have the opportunity to maintain uninterrupted service. You will be advised of your right to file a complaint with the FCC.

• No customer is authorized to repair this equipment, regardless of warranty status. All repair s must be performe d by Ve ril i nk or an auth or ized age nt . It is the responsibility of users requiring service to report the need for service to Verilink or to one of our authorized agents.

The lithium battery referred to in the following notices is contained inside the clock chip.

English

Français

DANGER!

The battery can ex plo de i f inco rre ct ly rep lac ed! Repl ace on ly with th e sam e or equi valent type recommen ded by the manufacturer. Di sp os e of used batteries according to the manufacturer’s instructions.

DANGER!

To avoid electrical shock in case of f ailur e , th e power supply must be installed b y a professional installer. The terminal labeled with the ground symbol ( ) on the power supply must be connected to a permanent earth ground.

CAUTION!

Interconnecting circuits must comply with the requirements of EN60950:1992/A4:1997 Section 6.2 for telecommunications network voltages (TNV) circuits.

ATTENTION!

Une explosion peut se produire si la batterie est remplacée d’ une façon incorrecte! Remplacez-la seulement avec le même modêle de batterie ou un modèle équivalent selon les recommendations de manufacture. Disposez de les batteries usées selon le s instructions de manufacture.

ATTENTION!

Pour éviter choc électrique en cas de insuccès, la provision de pouvoir doit êtré installé par un installeur professionnel. Le terminal de la provision de pouvoir, marqué du symbol de terre, ( ) doit connecté à un circuit de terre permanent.

PRUDENT!

Les circuit s doi vent êtré i nter conn ectés de mani ère à ce qu e l’ é quipe ment contin ue a êtré en agrément avec “EN60950:1992/A4:1997, Section 6.2, pour les circuits de voltage de liaisons d’ échanges (réseau) par les télécommunications (TNV), ” après les connections de circuits.

Españole

ATTENCION!

La bateria puede explota r si se reem plaza incorr ec tamente. Reemplace la b a t er ia con el mismo tipo de bateria ó una equivalente recomendada por el manufacturero. Disponga de las baterias de acuerdo con las instrucciones del manufacturero.

ATTENCION!

Para evitar contacto con circuitos que electrocutan, la fuente de alimentación debe ser instalada por un técnico profesional. La terminal de la fuente de alimentación marcada con el símbolo de tierra ( ) debe ser conectada a un circuito de vuelta por tierra permanente.

PELIGRO!

Circuitos que se interconectan a la red de telecomunicaciones deben hacerse de tal manera que cumplan con los requisitos estipulados en las especificaciones “EN60950:1992/ A4:1997 , Secció n 6.2, pa ra los vo ltages de c ircuit os interco nnectado s a la Red de Telecomunicaciones (TNV),” despues de terminar las connecciones entre los circuitos.

Verilink SCC 2020 User Manual

iii

Deutsch

VORSICHT!

Explosionsgefahr bei unsachgemäßem Ersetzen der Batterie! Batterie gleichen Typs und gleich er Qualität benutzen, wie vom Her s t eller empf ohlen. Ents orgung der Batterie nach Anweisung des Herstellers!

VORSICHT, GEFAHR!

Um keinen Schlag zu erhalten beim Versagen der electrische n Anl a ge, muss der Stromanschluss von ei nem Elektriker vorge nommen werden. Der el ektrische Pol, verse hen mit dem Erdsymbol ( ) muss am Stromanschluss permanent geerdet sein.

VORSICHT!

Schaltungen, die in den Geräten zusammengeschaltet sind, müssen weiterhin den Vorschriften EN60950:1992/A4:1997, Absatz 6.2 für Telecommunications Netz Spannung (TNV) Schaltkreize entsprechen.

Canadian

Requirements

Safety Precautions

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicabl es aux appareils numériques (de la class A) prescrites dans le Règlement sur le brouill age radi oélect riq ue éd icté par le mi nist ère des Communi ca tion s du Canada.

The Industry Canada label indentifies CS-03 certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements. Industry Canada does not guarantee the equipment will operate to the user’s satisfaction.

Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some cases, the company’s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly (telephone extension cord). The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations.

Repairs to certifi ed equipmen t should be made by a n authoriz ed Canad ian maint enance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.

Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.

Caution: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate.

This equipment is intended to be installed only in a Restricted Access Location that meets the following criteria:

• Access can only be gained by service personnel or users who have been instructed about the reasons for the restrictions applied to the location and about any precautions that must be taken.

• Access can only be gained through the use of a lock and key or other means of security, and is controlled by the authority responsible for the location.

When handling this equipment, follow these basic safety precautions to reduce the risk of electric shock an d in ju ry :

• Follow all warnings and instructions marked on the product and in the manual.

• Unplug the hardware from the wall outlet before cleaning. Do not use liquid

cleaners or aerosol cleaners. Use a cloth slightly dampened with water.

• Do not place this product on an unstable cart, stand, or table. It may fall, causing serious damage to the product.

• Slots and openings in the shelves are provided for ventilation to protect them from overheating. These openings must not be blocked or covered. Never place this product near a radiator or heat register.

iv

Verilink SCC 2020 User Manual

Product Warranty

Customer Service

Publications Staff

• This product should be operated only from the type of power source indicated on the marking label and manual. If you are unsure of the type of power supply you are using, consult your dealer or local power company.

• Do not allow anything to rest on the power cord. Do not locate this product where the cord will interfere with the free movement of people.

• Do not overload wall outlets and extension cords, as this can result in fire or electric shock.

• Never push objects of any kind into the shelves. They may touch dangerous voltage points or short out parts that could result in fire or electric shock. Never spill liquid of any kind on this equipment.

• Unplug the equipment from the wall outlet and refer servicing to qualified service personnel under the following conditions:

• When the power supply cord or plug is damaged or frayed.

• If liquid has been spilled into the product.

• If the product has been exposed to rain or water.

• If the product has been dropped or if the cabinet has been damaged.

Verilink’s product warranty covers repair or replacement of all equipment under normal use for a five-year period from date of shipment. Replacement products may be new or reconditioned. Any replaced or repaired product or part has a ninety (90) day warranty or the remainder of the initial warranty period, whichever is longer. Our in-house Repair Center services returns within ten working days.

Verilink offers the following services:

• System Engineers at regional sales office s for network design and planning assistance (800) 837- 4546

• Technical Assistance Center for free 24x7 telephone support during installation, maintenance, and troubleshooting (800) 285-2755 and support@verilink.com

• To return a product, it must be assigned a Return Materials Authorization (RMA) number before sending it to Veril i nk for repa ir (800) 92 6- 0085 , ext. 228 2

• Maintenance contracts and leasing plans (800) 837-4546

• Technical Training on network concepts and Verilink products (800) 282-2755

and training@verilink.com

• Web site (www.verilink.com)

This manual was written and illustrated by Steve Rider. Contributing writers include: David Fradelis, Marie Metivier, Theresa Lau, and Barbara Termaat.

Verilink SCC 2020 User Manual

v

vi

Verilink SCC 2020 User Manual

Overview

This User Manual describes the SCC 2020 Node Controller module, a component of Verilink’s Access System 2000 (AS2000) platform. The SCC 2020 is an SNMP (Simple Network Management Protocol) network management module whic h also functions as a T1 CSU.

This manual assumes you are already familiar with the standard AS2000 products. Where references are appropriate, the text r efers you to a specific Access System 2000 manual and chapter for greater detail.

For information on installing and replacing shelves, modules, and power supplies, see the manual AS2000: The B asics.

NOTE:

Do not attempt t o mix NCM, NCC, an d SCC node co ntrollers i n the same node. There can be only one node controller in a node.

Features

SNMP Features

Refer to the followin g r e l a ted AS2000 manuals:

•

SCC 2130 User Manual, documents the SNMP controller

version of the TAC 2130 Integrated T1 DSU/CSU (IDCSU).

•

AS2000, The Basics provides general information about

Verilink products.

•

The DIU 2131 High-Low Module User Manual documents a specific application consisting of an SCC 2020 used with a DIU 2131 two-port high-speed / low-speed DSU module.

The SCC 2020 SNMP Controller and Channel service unit module includes an embedded SNMP agent. Adding an SCC module to an AS2000 node allows network managers to interface their S NMP Manager with the AS2000 node. This provides full control for configuration management, performance monitoring, and maintenance through SNMP Gets, Sets, and Traps.

The embedded agent supports Verilink Enterprise MIB s, and proprietary MIBs for extended network management functions. Users can perform SNMP Gets and Sets , as wel l as receive Traps when alarm threshold criteria have been met.

Verilink SCC 2020 User Manual

1

-1

Overview

The SCC modules are compatible with HP OpenView™ and other SNMP network management applications.

Other Features

The SCC Node Controller series also features the following:

•

Three subsets of the TCP/IP protocol are supported: Telnet is available as a means of reaching the Craft interface; FTP is supported for introducing firmware upgrades, and SNMP is available as a means of management. All three of these protocols may be used through either the Ethernet or SLIP interfaces.

•

ASCII Craft interface

• Local access by direct conne ction to the Craft port.

• Remote access via Telnet over Ethernet or SLIP

• Up to two simultaneous Craft interface sessions over Telnet

•

Multiple simultaneous SNMP sessions (up to 10)

•

Dual flashbanks to support firmware download

The SCC 2020 has two flashbanks for housing separate software versions. Before shipment, Verilink loads both flashbanks with the same version of software. You can download subsequent software releases into either flashbank. You can choose which version of software to run for any session, by booting from the desired flashbank.

Types of SCC Node Controllers

For more information on downloadable firmware upgrades, see “Far-End Management” in Chapter 3 of this manual.

Verilink’s SCC family of Node Controllers includes the following modules:

•

The SCC 2020 is a TAC 2010 T1 CSU with the addi tion of an SNMP-capable node controller function (documented in this manual).

•

The SCC 2130 is a TAC 2130 IDCSU (Integrated T1 CSU/ DS U) with the addition of an SNMP-capable node controller function. See the SCC 2130 User Manual for full details.

•

The SCC 2120 is a TAC 2110 Automatic Protection Switch CSU with the added functions of an SNMP node controller and a master controller for automatic switch protection of T1 circuits. The SCC 2120 is the node controller specifically designed for the Automatic Protection Switch (APS 2000) system. For more information on the APS 2000, see the APS

2000 T1 Line Protection System User Manual

1

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Verilink SCC 2020 User Manual

Overview

Compatible Modules

Table 1- 1 SCC Compatible Modules

Module Type Usage

TAC 2010 CSU T1 CSU which may be used as a CSU only (CSU mode), part of a CSU/DSU

DIU 2130 DSU DSU with two synchronous serial interface ports for connection of Data

DIU 2130/DBU DSU DSU with a single synchronous serial interface port and modified firmware

DIU 2130 56K/NMS

DIU 2140 Sub-Rate

TAC 2130 Integrated

DSU DSU with two synchronous se r ial interface ports and support for routing

Data Multiplexer, 5 port DSU

DSU/CSU

Types of application modul es w hic h ma y be man a ge d by th e SCC 2020 are illustrated below:

(Mux mode) or in a combination of both (Drop & Insert Mode). May be used with up to 24 DIU 21xx DSU modules to make a data channel bank.

Terminal Equipment (DTE). May be used with TAC 2010 (including the TAC 2010 portion of an NCC 2020). Uses a shelf midplane to re ceive/transmit data to a CSU module.

which uses the second port to switch the DTE data from port 1 to an external Dial Back-Up device—which must be configured to dia l on DTR. Uses a shelf midplane to receive/transmit data to a CSU module

of individual timeslots, in the “telco cloud”, to remote sites with 56K DDS circuits. Uses a shelf midplane to receive/transmit data to a CSU module

DSU with five RS-232 interface ports, each ind ividually selectable for syn c or async data, wh ich are multiplex ed into a single t im eslot (DS0) of the associated T1 CSU. Uses a shel f midplane to receive/transmit data to a CSU module

Standalone (for data purposes) DSU/CSU, supports a sin g le synchronous serial interface only. Does not and will not use any midplane bus to transfer data to any other module.

Components

The complete SCC 2020 assembly consists of a front-panel module and a rear panel connector interface module, together occupying a single shelf-slot position accessible from the front and back of the AS 2000 rack or shelf. The CIM is installed from the rear of the shelf into the backplane. The SCC 2020 front module is installed from the front. The CIM is always installed first and removed last. The SCC front module is installed last and removed first; it is equipped with ejector handles.

The SCC module front panel provides indicato r LEDs and management ports. It also provides a Craft interface port and signal access jacks.

NOTE:

The bantam type signal access jacks provide access to internal signals within the module. If the SCC 2020 is being used with any type of DIU (DSU) module, the signals on the bantam jacks will NOT reflect line signals and this jack field should not be use d .

Verilink SCC 2020 User Manual

1

-3

Overview

Front and Back Modules

This section describes the SCC 2020 front module and the rear connector interface modules that can be used with it.

SCC Front Panel

The SCC front panel provides thumbwheel switches, LED indicators and management and monitor ports. It is equipped wit h dual ejector levers to facilitate installation and removal of the module.

Figure 1-1 illustrates the front panel view of the module.

Figure 1-1 SCC Node Controller Front Panel

Thumbwheel switches and command execution push button

SCC 2020

Note: The SCC Node Controllers all use the same front panel; only the model numbers are different.

9 9

FUNCTION

Equipment, Status, and Network LEDs

EQPT

EXE

The SCC 2020 Node Controller front panel has:

•

Three LEDs (status indication)

•

Three pairs of bantam jacks (not used)

RJ-11 Modular jack for direct Craft interface connection

STAT

NET

CRAFT

EQPT

IN OUT

Signal access jacks (bantam

NET

IN OUT

MON

IN OUT

Thumbwheel Switches

•

Craft interface 6-pin modular jack (terminal connection)

•

Two thumbwheel switches (command selection)

•

Momentary push-but to n switch (command executio n)

The thumbwheel switches on the front of the SCC 2020 module are provided as a measure of last resort for configuring the SCC, and/or application modules it controls, when terminal access to the Craft interface is not possible.

Whenever possible, it is preferred practice to use the Craft interface, a Telnet session, or an SNMP manager instead of the thumbwheels.

For a detailed procedure see “Thumbwheel Procedure” in Chapter 3.

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Verilink SCC 2020 User Manual

Overview

CIMs for SCC 2020

SCC Node Controller front module must be installed with a rear connector module which provides ports for various interface requirements. The following tab le list s the connector modules th at can be paired with the SCC 2020 Node Controller front module.

Table 1-2 SCC Node Controller Series Connector Interface Modules Summary

Front Module

SCC 2020 (CSU and

Connector

Interface Module

CIM 2022 RJ-48C RJ-48C AAUI-14 DB-9

DSX-1 Port Connector

Net Port

Connector

SNMP node controller)

CIM 2052 DB-15 DB-15 AAUI-14 DB-9

The following illustrations show the connector interface modules used with the SCC 2020.

Figure 1-2 CIM 2022 Back Panel (RJ-48C)

311-10XXXX-001

REV *

EQPT MANAGEMENT EXTENSION NO COM NC EXT TIMING MANAGEMENT POR T IN NETWORK

RJ-48C Equipment

AAUI-14 female (Ethernet)

ALARM RELAY

DB-9 male

(SLIP)

Ethernet

SLIP

Connector

RJ-48C T1

2022

CIM

Figure 1-3

311-10XXXX-001

REV *

CIM 2052 Back Panel (DB-15)

ALARM RELAY

EQPT MANAGEMENT EXTENSION NO COM NC EXT TIMING MANAGEMENT PORT IN NETWORK

DB-15 Equipment

AAUI-14 female (Ethernet)

DB-9 male (SLIP)

DB-15 T1

2052

CIM

Verilink SCC 2020 User Manual

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Overview

1

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Verilink SCC 2020 User Manual

Chapter

2

Connect to Craft Port

Quick Set-Up

This section details a quick, step-by-step procedure for configuring the SCC 2020. For the purpose of this quick configuration guide, the assumption is made that you are using the SCC 2020 with a single DIU 2130 DSU module and dividing the bandwidth of an ESF/B8ZS T1 evenly between the two data ports of the DIU 2130.

It is most likely that this procedure will not match your configuration exactly. Use this chapter as a guide to the proces s of installing your equipment. Complete details on configuration covering all selectable options may be found in Chapter 3.

Using the Craft cable supplied with the SCC 2020, connect the modular (RJ-11) end to the port labeled Craft on the front panel of the SCC 2020. Connect the other end of the Craft cable to your PC or terminal.

Set your terminal , o r terminal program, to 19.2 kbit/s, 8 data bi ts, no parity, one stop bit and no flow control.

Login

NTER

E

Press

pSH+>

The prompt Type “ The prompt Initially there is no password, press The SCC 2020

NOTE:

craft”

pSH+>

pSH+> pSH+>

(use lowercase)

YOUR PASSWORD?

YOUR PASSWORD? YOUR PASSWORD?

The prompt line an d menu names will refer to the SCC 2020 as a TAC 2010. This is because an SCC 20 20 is a TAC 2 010 T1 CSU to which the SNMP, Craft interface and node controller functions have been added.

is displayed

Main Menu

is displayed

is displayed:

NTER

E

Verilink SCC 2020 User Manual

2

-1

Quick Set- Up

Figure 2-1 SCC 2020 Main Menu

-- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. --

-- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. -- -- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. -FLASH BANK: B Serial Number: 00655503

FLASH BANK: B Serial Number: 00655503

FLASH BANK: B Serial Number: 00655503FLASH BANK: B Serial Number: 00655503 Ethernet Address: A0:6A:00:0A:00:8F:

Ethernet Address: A0:6A:00:0A:00:8F:

Ethernet Address: A0:6A:00:0A:00:8F:Ethernet Address: A0:6A:00:0A:00:8F: Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0

Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0

Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0 Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0

Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0

Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0

SITE NAME: Tech Pubs SCC 2020 NODE ID: 851

SITE NAME: Tech Pubs SCC 2020 NODE ID: 851SITE NAME: Tech Pubs SCC 2020 NODE ID: 851 <- SLOT ->

<- SLOT ->

<- SLOT -> <- SLOT -> SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13

SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13

SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 1 DL [C] D

1 DL [C] D

1 DL [C] D 1 DL [C] D 2

2

2 2 3

3

3 3 4

4

4 4 KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS,

KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS,

KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS, KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS, B = DIU/DBU, S = SMDS, L = HLM

B = DIU/DBU, S = SMDS, L = HLM

B = DIU/DBU, S = SMDS, L = HLM B = DIU/DBU, S = SMDS, L = HLM

S) shelf/slot D) diagnostics

S) shelf/slot D) diagnosticsS) shelf/slot D) diagnostics N) near element O) node administration

N) near element O) node administration

N) near element O) node administrationN) near element O) node administration F) far element M) monitor alarms (OFF)

F) far element M) monitor alarms (OFF)

F) far element M) monitor alarms (OFF)F) far element M) monitor alarms (OFF) C) configuration A) view alarm buffer

C) configuration A) view alarm buffer

C) configuration A) view alarm bufferC) configuration A) view alarm buffer P) performance X) log off

P) performance X) log off

P) performance X) log offP) performance X) log off

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

CSU Configuration

When installing an SCC 2020 or TA C 2010 module which is to be used with any type of DIU 21xx module, always configure the CSU module before configuring anything on the DIU 21xx module. When the DIU 21xx is configured, it is connected logically to a CSU. At that instant the DIU gets information from the CSU as to which Data Bus in the shelf midplane to use. If the CSU has not been configured yet, the DIU 21xx will not get a correct bus assignment. This is why the CSU should be configured first.

Type “C” and press

NTER

E

Configuration Menu

. The

is presented.

2

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Verilink SCC 2020 User Manual

Figure 2-2 SCC 2020 Configuration Menu

CSU CONFIGURATION -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

CSU CONFIGURATION -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --CSU CONFIGURATION -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

|-----------------------|

|-----------------------| |-----------------------|

-------<< eq <<-------| K) keep alive AIS |-------<< net <<-------

-------<< eq <<-------| K) keep alive AIS |-------<< net <<--------------<< eq <<-------| K) keep alive AIS |-------<< net <<------ W) framing SF | T) alm thld DEF | W) framing ESF

W) framing SF | T) alm thld DEF | W) framing ESF

F) format AMI | | F) format AMI

J) jitt buf 40 BITS | | J) jitt buf 40 BITS

R) eq crc REGEN | | R) net crc REGEN

Y) xcode yel TO NET | | Y) xcode yel OFF

M) distance 0-133 | | L) lbO 0 DB

M) distance 0-133 | | L) lbO 0 DB M) distance 0-133 | | L) lbO 0 DB

------->> eq >>-------| I) idle code ONES |------->> net >>-------

------->> eq >>-------| I) idle code ONES |------->> net >>-------------->> eq >>-------| I) idle code ONES |------->> net >>------ |-----------------------| Z) density 12%+80z

|-----------------------| Z) density 12%+80z

|-----------------------| Z) density 12%+80z |-----------------------| Z) density 12%+80z

X) exit menu C1-C5) canned config

X) exit menu C1-C5) canned config X) exit menu C1-C5) canned config

A) diu bus NONE B) diu clock THRU

A) diu bus NONE B) diu clock THRU A) diu bus NONE B) diu clock THRU P) prm OFF O) poll far end OFF

P) prm OFF O) poll far end OFF

P) prm OFF O) poll far end OFF P) prm OFF O) poll far end OFF

G) Alarm ENABLE

G) Alarm ENABLE G) Alarm ENABLE [1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

Quick Set-Up

The factory default values for the SCC 2020 are shown. The unit is

NONE

in CSU mode (DIU bus =

NONE

) and the network interface (shown on

NONENONE

the right at the top) is set for ESF fram i n g an d AM I li ne code. The DSX-1 Equipment interface, shown at top left, is set for SF (D4)

framing and AMI line code. For this quick set-up th e Equipment interface is not being used, as it would be in CSU mode or Drop and Insert mode. Because this example will use all 24 timeslots for data purposes on a DIU 2130 module, Mux mode is required.

NTER

E

1. Type “A” and press

DSU Bus (1)NONE (2)A (3)B (4)C (5)B,D&I EQ (6)A,D&I

appears:

NET >

NET > NET >

DSU Bus (1)NONE (2)A (3)B (4)C (5)B,D&I EQ (6)A,D&I

DSU Bus (1)NONE (2)A (3)B (4)C (5)B,D&I EQ (6)A,D&I DSU Bus (1)NONE (2)A (3)B (4)C (5)B,D&I EQ (6)A,D&I

select “2” to use Data Bus A. This means that the CSU

,

the prompt for bus selection

and the DIU 2130 will use Data B us A i n the shelf to pass data back and forth. The CSU is now in Mux mode. The EQPT LED changes from red to green.

NTER

E

2. Type “F” and press

Line Format(eq,net) 1(AMI,AMI) 2(AMI,B8ZS) 3(B8ZS,AMI)

Line Format(eq,net) 1(AMI,AMI) 2(AMI,B8ZS) 3(B8ZS,AMI) Line Format(eq,net) 1(AMI,AMI) 2(AMI,B8ZS) 3(B8ZS,AMI) 4(B8ZS,B8ZS) >

4(B8ZS,B8ZS) >

4(B8ZS,B8ZS) > 4(B8ZS,B8ZS) >

select “4” for B8ZS (since the Equipment side

,

the prompt for line format appears:

interface is not used, selection 2 would also work).

3. The default value for the density enforcement selection is not correct for a B8ZS T1. Use the “Z” command and select change it to

NONE

. B8ZS was developed to eliminate the need

“1”

to

for density enforcement.

4. For this example, a Network Service Provider (the phone company) is providing a timing signal with a Digital Access and Cross-connect System (DACS). This is usually the case where an inter-exchange carrier (long distance company) is

Verilink SCC 2020 User Manual

2

-3

Quick Set- Up

involved. When the carrier provides a timing signal, all other devices on the T1 must use that signal to derive their transmit clock. Use the “B” command for the DIU timing options and select “5” for

NET

(recovered NETwork clock).

5. There are no more changes required to the default CSU configuration in order to configure this example. Use the “X” command to return to the SCC 2020

Main Menu

.

Configuring the DIU 2130

For this example, the SCC 2020 is used with a DIU 2130 module in the right hand side (slot 2) of a Dual-line Shelf. The SCC 2020 connects directly to the T1 circuit and provides CSU functionality. The DIU 2130 presents two synchronous serial interfaces for connecting the Data Terminal Equipment (DTE) and provid es DSU functions.

Before any module may b e optioned, it must first be selecte d. When you first logged in to the SCC 2020 t he def ault was that the SCC was selected. To configure the DIU 2130, first select it.

S) shelf/slot

The

S) shelf/slotS) shelf/slot

another. Type “ another module appears:

command is used to navigate from one module to

S”

and press

NTER

E

.

The prompt for selecting

Enter shelf,slot >

Enter shelf,slot > Enter shelf,slot >

For this example the node has only one shelf (shelf #1) and the DIU 2130 is in slot two of that shelf. Type “

1,2”

and press

The prompt line returns as:

[1,2] DIU 2130 (UPDAT E) >

[1,2] DIU 2130 (UPDAT E) > [1,2] DIU 2130 (UPDAT E) >

NTER

E

.

this indicates

that the DIU 2130 has been selected.

NOTE:

Whenever the word UPDATE appears in the command line prompt, it indicates that some information has changed since the screen was last refreshed. To refresh the screen with

NTER

current information, simply press

E

.

Configuration

2

-4

Menu

NTER

Type “C” and press

Menu

. There is a brief delay as the SCC module attempts to

E

to select the DIU 2130

Configuration

communicate with a CSU module in Shelf 0, Slot 0 since this is the default value for CSU assignment in a new DIU 2130 module. An address of Shelf 0, Slot 0 is not possible. Modules are shipped this way in order that they may be added to a shelf without inter fering with any existing applications. An error message appears:

No response from csu[ 0,0 ]

No response from csu[ 0,0 ].

No response from csu[ 0,0 ]No response from csu[ 0,0 ]

This error message, in this case, means that the DIU 2130 is new and has never been assigned to any CSU module in any slot of any shelf. Ignore this error message.

Then the DIU 2130

Verilink SCC 2020 User Manual

Configuration Menu

is displayed.

Quick Set-Up

Figure 2-3 DIU 2130 Configuration Menu

--- DIU 2130 CONFIGURATION/DIAGNOSTIC MENU ---

--- DIU 2130 CONFIGURATION/DIAGNOSTIC MENU --- --- DIU 2130 CONFIGURATION/DIAGNOSTIC MENU ---

C) CSU [ 0,0 ]

C) CSU [ 0,0 ]C) CSU [ 0,0 ] T) timing source CSU

T) timing source CSU

T) timing source CSUT) timing source CSU

chnl 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

chnl 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 chnl 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Dp)port .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..

Dp)port .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..Dp)port .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..

Lead Toggles DTR) DSR) RTS) CTS) DCD)

Lead Toggles DTR) DSR) RTS) CTS) DCD) Lead Toggles DTR) DSR) RTS) CTS) DCD) Forced Ports -/- -/- -/- -/- -/-

Forced Ports -/- -/- -/- -/- -/-

Forced Ports -/- -/- -/- -/- -/- Forced Ports -/- -/- -/- -/- -/-

Port 1 Port 2 Statistics

Port 1 Port 2 Statistics Port 1 Port 2 Statistics

Mp) mode 56K 56K FW/HW Rev.............1.6/0.8

Mp) mode 56K 56K FW/HW Rev.............1.6/0.8Mp) mode 56K 56K FW/HW Rev.............1.6/0.8

Sp) scram/hdlc inv N/N N/N Battery...............OK

Sp) scram/hdlc inv N/N N/N Battery...............OKSp) scram/hdlc inv N/N N/N Battery...............OK

Kp) clocking ST ST DTE Intf..............V.35/V.35

Kp) clocking ST ST DTE Intf..............V.35/V.35Kp) clocking ST ST DTE Intf..............V.35/V.35

Gp) LOS lead NONE NONE Data bus..............NONE

Gp) LOS lead NONE NONE Data bus..............NONEGp) LOS lead NONE NONE Data bus..............NONE

Ep) enable loop YES YES Tp) test and monitor BEC

Ep) enable loop YES YES Tp) test and monitor BECEp) enable loop YES YES Tp) test and monitor BEC Np) near loopback OFF OFF Pp) monitor leads and status

Np) near loopback OFF OFF Pp) monitor leads and status

Np) near loopback OFF OFF Pp) monitor leads and statusNp) near loopback OFF OFF Pp) monitor leads and status

Fp) far loopback OFF OFF A) Alarm Enable......YES

Fp) far loopback OFF OFF A) Alarm Enable......YESFp) far loopback OFF OFF A) Alarm Enable......YES

[1,2] DIU 2130 >

[1,2] DIU 2130 >[1,2] DIU 2130 >

NOTE:

For the remainder of this chapter you will not be instructed to press

NTER

E

each time. Generally, the

NTER

E

key is used

after each command or value entry.

The CSU command is used to assign the DIU 2130 module to the CSU with which it will be used. Since the SCC 2020 contains a TAC 2010 CSU module, it will be used for the CSU in this example. Type “C”. At the prompt

enter shelf >

enter shelf > enter shelf >

type “1”, at the prompt

enter slot >

enter slot >enter slot >

enter shelf >

type “1” again. This selects the SCC 2020 in slot one of shelf one as the CSU for this DIU 2130 module.

The Timing Source defaults to CSU, meaning th at the DIU 2130 will derive its transmit clock from the source selected in the CSU configuration (recovered network clock in this example). This is correct for this example.

In the middle of the display, a line across the screen lists all 24 timeslots. The DS0 (timeslot) selection prompt appears at the

Dp

beginning of the next line,

Dp

. The lowercase p is a variable,

DpDp

instead of typing “p” a port number (1 or 2) is used. For this example timeslots 1 t hrough 12 ar e to be us ed on data port numbe r one and timeslots 13 through 24 are to be assigned to data port number two.

Type “

12”

.

enter port 1 channels >

D1”

, the prompt

Verilink SCC 2020 User Manual

enter port 1 channels >

enter port 1 channels >enter port 1 channels >

appears. Type “

1-

2

-5

Quick Set- Up

enter port 2 channel s >

Now type “

13-24”

“

. Press

D2”

, the prompt

NTER

E

by itself to refresh the display with the DS0

enter port 2 channel s >

enter port 2 channel s >enter port 2 channels >

appears. Type

assignments.

Figure 2-4 DIU 2130 Configuration Menu

--- DIU 2130 CONFIGURATION/DIAGNOSTIC MENU ---

--- DIU 2130 CONFIGURATION/DIAGNOSTIC MENU --- --- DIU 2130 CONFIGURATION/DIAGNOSTIC MENU ---

C) CSU [ 1,1 ]

C) CSU [ 1,1 ]C) CSU [ 1,1 ] T) timing source CSU

T) timing source CSU

T) timing source CSUT) timing source CSU

chnl 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

chnl 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 chnl 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Dp)port 01 01 01 01 01 01 01 01 01 01 01 01 02 02 02 02 02 02 02 02 02 02 02 02

Dp)port 01 01 01 01 01 01 01 01 01 01 01 01 02 02 02 02 02 02 02 02 02 02 02 02

Dp)port 01 01 01 01 01 01 01 01 01 01 01 01 02 02 02 02 02 02 02 02 02 02 02 02Dp)port 01 01 01 01 01 01 01 01 01 01 01 01 02 02 02 02 02 02 02 02 02 02 02 02

Lead Toggles DTR) DSR) RTS) CTS) DCD)

Lead Toggles DTR) DSR) RTS) CTS) DCD) Lead Toggles DTR) DSR) RTS) CTS) DCD) Forced Ports -/- -/- -/- -/- -/-

Forced Ports -/- -/- -/- -/- -/-

Forced Ports -/- -/- -/- -/- -/- Forced Ports -/- -/- -/- -/- -/-

Port 1 Port 2 Statistics

Port 1 Port 2 Statistics Port 1 Port 2 Statistics

Mp) mode 56K 56K FW/HW Rev.............1.6/0.8

Mp) mode 56K 56K FW/HW Rev.............1.6/0.8Mp) mode 56K 56K FW/HW Rev.............1.6/0.8

Sp) scram/hdlc inv N/N N/N Battery...............OK

Sp) scram/hdlc inv N/N N/N Battery...............OKSp) scram/hdlc inv N/N N/N Battery...............OK

Kp) clocking ST ST DTE Intf..............V.35/V.35

Kp) clocking ST ST DTE Intf..............V.35/V.35Kp) clocking ST ST DTE Intf..............V.35/V.35

Gp) LOS lead NONE NONE Data bus..............A

Gp) LOS lead NONE NONE Data bus..............AGp) LOS lead NONE NONE Data bus..............A

Ep) enable loop YES YES Tp) test and monitor BEC

Ep) enable loop YES YES Tp) test and monitor BECEp) enable loop YES YES Tp) test and monitor BEC Np) near loopback OFF OFF Pp) monitor leads and status

Np) near loopback OFF OFF Pp) monitor leads and status

Np) near loopback OFF OFF Pp) monitor leads and statusNp) near loopback OFF OFF Pp) monitor leads and status

Fp) far loopback ON OFF A) Alarm Enable......YES

Fp) far loopback ON OFF A) Alarm Enable......YESFp) far loopback ON OFF A) Alarm Enable......YES

[1,2] DIU 2130 >

[1,2] DIU 2130 >[1,2] DIU 2130 >

Lead toggles are used to determine whether the control leads on the synchronous serial interface will function in the normal way or be forced on. When the DTE does not assert control leads they can be forced on by typing the three letter abbreviation of the control lead. For this example the DTE supports normal control lead operation and the default values are appropriate.

Mode is used to determine the data rate of each of the timeslo ts assigned to the port. In the case of an AMI T1 circ uit the mode must be 56K. For the B8ZS T1 used in this example, 64K gives the user greater throughput. Use the M1 and M2 commands to set both data ports to 64K per DS0.

The remaining options are correct for this example. The T1 circuit and DTE should now be connected.

Once the CSU has been connected to the T1 circuit for at least fifteen minutes, meaningful perfor mance statistics will be availab le under the

Performance Menu

, see Chapter 4 for more details.

Within 15 seconds of connecting the T1 circuit, the NET LED on the front of the SCC 2020 should change from red to green. If it does not, the

Diagnostics Menu

may be used for troubleshooting, see

Chapter 5 for more information on diagnostics.

2

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Verilink SCC 2020 User Manual

Quick Set-Up

For more information on DIU 2130 modules see the DIU 2130 User

Manual.

The configuration of the SCC 2020 is covered in detail in Table 3-4 located in Chapter 3 of this manual.

Verilink SCC 2020 User Manual

2

-7

Quick Set- Up

2

-8

Verilink SCC 2020 User Manual

Chapter

3

Preliminaries

Configuration

This chapter covers configuring the CSU portion of the SCC 2020 Node Controller, setting up the SNMP controller functions through the Craft (terminal) interface and use of the front panel thumbwheel switches.

You can connect to the Ver ilin k Craf t inte rfac e di rectly th rough th e Craft port on the SCC 2020 module or through an Ethernet or S LIP connection using Telnet.

Before you can use Telnet, you must configure certain IP address and related parameters via direct local connection to the Craft port on the SCC Node Controller front panel. After these IP addresses and options are set, future Craft sessions may use either the local Craft port or Telnet.

As with all other AS2 000 controller module s, only one ASCII directconnection session can exi st on a given module at a time. Up to two sessions are supported over Telnet. With version 3.x or newer SCC firmware you may be able to option far-end nodes. See the secti o n Far End Management for details.

Using the Craft Interface

To access the Craft interface, connect a terminal or a computer running a terminal pro gram to the Craft port located on the front panel of the SCC 2020 module.

Verilink SCC Craft Port Terminal Setup

Set your terminal parameters to: Data Rate : 19.2 kbit/s Word Size : 8 bits Parity : None Stop Bits : One Flow Control: None The Verilink Craft interface does not assert any control leads.

Verilink SCC 2020 User Manual

3

-1

Configuration

Verilink provides a cable called a "Craft cable" which has an RJ-11 modular connector at one end and a female DB-25 connector at the other. Connect the RJ-11 modular connector to the po rt labeled

CRAFT

on the front of the SCC 2020 module.

The Craft cable pinout is as follows:

Table 3-1 DB-25 Craft Cable p/n 458-501788-008

DB-25 female RJ-11 modular Usage

pin 2 pin 3 Transmit Data pin 3 pin 4 Receive Data pin 7 pin 5 Signal Ground

Your computer may have a DB-9 connector, requ iring a second cable or adapter to complete the connection. For this purpose, use the same type of standard PC AT serial cable as would be used to connect to an external modem.

An alternative Craft cable uses DB-9 and RJ-11 connectors. It is wired according to the pinout shown below:

Logging On

Table 3-2 DB-9 Craft Cable p/n 458-102119-008

DB-9 female RJ-11 modular Usage

pin 3 pin 3 Transmit Data pin 2 pin 4 Receive Data pin 5 pin 5 Signal Ground

The first thing you will see after connecting your terminal and

NTER

hitting the

pSH+>

pSH+> pSH+>

E

key is:

Certain TCP/IP and UNI X com mands are av ail abl e from thi s pr ompt (ping, FTP, mv, rm, ls).

Most often you will want to use the Craft interface. To reach the Craft interface from the pSH+> prompt, typ e the word “

craft”

in

lowercase:

pSH+>

pSH+> craft

pSH+> pSH+>

Then you'll see the password prompt:

YOUR PASSWORD?

YOUR PASSWORD? YOUR PASSWORD?

NTER

Initially there is no password, so just press The top or

3

-2

Main Menu

Verilink SCC 2020 User Manual

is displayed.

E

again.

Figure 3-1 SCC 2020 Main Menu

-- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. --

-- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. -- -- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. -FLASH BANK: B Serial Number: 00655503

FLASH BANK: B Serial Number: 00655503

FLASH BANK: B Serial Number: 00655503FLASH BANK: B Serial Number: 00655503 Ethernet Address: A0:6A:00:0A:00:8F:

Ethernet Address: A0:6A:00:0A:00:8F:

Ethernet Address: A0:6A:00:0A:00:8F:Ethernet Address: A0:6A:00:0A:00:8F: Slip Local IP Address: 192.94.46.21, Subnet Mask: 255.255.255.0

Slip Local IP Address: 192.94.46.21, Subnet Mask: 255.255.255.0

Slip Local IP Address: 192.94.46.21, Subnet Mask: 255.255.255.0Slip Local IP Address: 192.94.46.21, Subnet Mask: 255.255.255.0 Ethernet Local IP Address: 192.94.45.200, Subnet Mask: 255.255.255.0

Ethernet Local IP Address: 192.94.45.200, Subnet Mask: 255.255.255.0

Ethernet Local IP Address: 192.94.45.200, Subnet Mask: 255.255.255.0Ethernet Local IP Address: 192.94.45.200, Subnet Mask: 255.255.255.0

SITE NAME: Tech Pubs SCC 2020 #2 NODE ID: 851

SITE NAME: Tech Pubs SCC 2020 #2 NODE ID: 851SITE NAME: Tech Pubs SCC 2020 #2 NODE ID: 851 <- SLOT ->

<- SLOT ->

<- SLOT -> <- SLOT -> SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13

SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13

SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 1 DL [C] C

1 DL [C] C

1 DL [C] C 1 DL [C] C 2

2

2 2 3

3

3 3 4

4

4 4 KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS,

KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS,

KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS, KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS, B = DIU/DBU, S = SMDS, L = HLM

B = DIU/DBU, S = SMDS, L = HLM

B = DIU/DBU, S = SMDS, L = HLM B = DIU/DBU, S = SMDS, L = HLM

S) shelf/slot D) diagnostics

S) shelf/slot D) diagnosticsS) shelf/slot D) diagnostics N) near element O) node administration

N) near element O) node administration

N) near element O) node administrationN) near element O) node administration F) far element M) monitor alarms (OFF)

F) far element M) monitor alarms (OFF)

F) far element M) monitor alarms (OFF)F) far element M) monitor alarms (OFF) C) configuration A) view alarm buffer

C) configuration A) view alarm buffer

C) configuration A) view alarm bufferC) configuration A) view alarm buffer P) performance X) log off

P) performance X) log off

P) performance X) log offP) performance X) log off

Configuration

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

From this menu you may navigate from card to card, or choose various option menus for the current card .

Main Menu

The

commands are detailed in the table below.

Verilink SCC 2020 User Manual

3

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Configuration

Table 3-3 SCC 2020 Main Menu Commands

Menu Option Description Instructions

S) shelf/slot Used to navigate from module

N) near element Selects the local node. Used to return from a far element session. F) far element Selects the node at the remote

C) configuration Selects the

P) performance Selects the D) diagnostics Selects the O) node

administration M) monitor alarms

(OFF)

A) view alarm buffer Displays alarm buffer. A history of recent alarms i s d isplayed. X) log off Exits the

to module within a node.

end of the T1 circuit connected to the current module. See the section Far-End Management below.

Configuration

Menu

.

Performance Menu Diagnostics Menu

Selects the

Administration Menu

Toggles on/off the monitor alarms function.

Node

Main Menu

.

. Returns to

Enter the shelf number and slot number of the desired module, use a comma delimiter (1,2).

With version 3.02 or higher SCC firmware, you can navigate from module to module in the remote node, earlier firmware versions only allowed access to the specific remote CSU module.

See Figure 3-2 and Table 3-4 below.

.See Chapter 4 of this manual.

.See Chapter 5 of this manual.

See Figure 3-4 and Table 3-5 below.

If monitor alarms is ON, alarm messages are displayed on the Craft interface as they occur.

No alarm messages are displayed if monitor alarms is OFF.

pSH+>

pSH+>pSH+>

prompt, the TCP/IP shell.

The Configuration Menu

In the The letter C is defined in the Key as a CSU. In the case of a card in slot 1 of shelf 1, this would be the SCC 2020 card.

The SCC 2020 contains two complete ly separate functions, an SNMP network controller and a T1 CSU.

The T1 CSU portion of an SCC 2020 is a TAC 2010 card. Once an SCC 2020 is installed in a node, additional T1 CSU requirements can be met by adding TAC 2010 modules.

Each node (group of shelves connected together) must have only one node controller card. This card should be located in slot 1 of shelf 1. If additional CSU cards are needed, use TAC 2010 cards instead of adding more SCC card s.

Therefore, a C located in the slot 1 shelf 1 position will represent an SCC 2020 while a C located at some other position will represent a TAC 2010.

Use the command “C”, which brings up the Configuration menu for the element.

Main Menu

shown in Figure 3-1, the element [C] is selected.

3

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Verilink SCC 2020 User Manual

Figure 3-2 CSU Configuration Menu

CSU CONFIGURATION -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

CSU CONFIGURATION -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --CSU CONFIGURATION -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

|-----------------------|

|-----------------------| |-----------------------|

-------<< eq <<-------| K) keep alive FAIS |-------<< net <<-------

-------<< eq <<-------| K) keep alive FAIS |-------<< net <<--------------<< eq <<-------| K) keep alive FAIS |-------<< net <<------ W) framing ESF | T) alm thld DEF | W) framing ESF

W) framing ESF | T) alm thld DEF | W) framing ESF

F) format B8ZS | | F) format B8ZS

J) jitt buf 40 BITS | | J) jitt buf 40 BITS

R) eq crc PASS | | R) net crc PASS

Y) xcode yel OFF | | Y) xcode yel OFF

M) distance 0-133 | | L) lbO 0 DB

M) distance 0-133 | | L) lbO 0 DB M) distance 0-133 | | L) lbO 0 DB

------->> eq >>-------| I) idle code ONES |------->> net >>-------

------->> eq >>-------| I) idle code ONES |------->> net >>-------------->> eq >>-------| I) idle code ONES |------->> net >>------ |-----------------------| Z) density NONE

|-----------------------| Z) density NONE

|-----------------------| Z) density NONE |-----------------------| Z) density NONE

X) exit menu C1-C5) canned config

X) exit menu C1-C5) canned config X) exit menu C1-C5) canned config V) Inband Management Commands ACCEPT

V) Inband Management Commands ACCEPT

V) Inband Management Commands ACCEPT V) Inband Management Commands ACCEPT

A) diu bus A B) diu clock INT

A) diu bus A B) diu clock INT A) diu bus A B) diu clock INT P) prm OFF O) poll far end OFF

P) prm OFF O) poll far end OFF

P) prm OFF O) poll far end OFF P) prm OFF O) poll far end OFF

Configuration

G) Alarm ENABLE

G) Alarm ENABLE G) Alarm ENABLE [1,2] NEAR TAC 2010 >

[1,2] NEAR TAC 2010 >

[1,2] NEAR TAC 2010 >[1,2] NEAR TAC 2010 >

Configuration Menu Commands

Some of the commands on the CSU

Configuration Menu

are shown on both the left and right sides of the screen. Commands that are used for both DSX-1 equipment and T1 network ports are repeated on both the equipment and the net side of the diagram. Command prompts for these options present pairs of values: the value for the equipment side is followed by the value for the network side.

For example, if connecting a D4 (SF) channel bank to an ESF T1 circuit the SF,ESF framing selection would be used.

Table 3-4 below describes all of the SCC 2020 CSU

Menu

options:

Configuration

Verilink SCC 2020 User Manual

3

-5

Configuration

Table 3-4 CSU Configuration Options

Menu Option Description Instructions

W) framing Selects T1 framing

mode for both DSX-1 equipment port and T1 network port.

Selection for the Equipment side must match the optioning of the equipment.

Selection for the T1 network side must match the type of T1 installed by the network service provider.

F) format Selects AMI or B8ZS

for the DSX-1 equipment and T1 network line codes, must match T1 and equipment settings.

In Mux mode, (where no DSX-1 equipment is used) only the second parameter is meaningful.

First value = DSX-1 equipment, second value = T1 circuit. 1(SF,SF) — D4 equipment and a D4 T1. 2(ESF,SF) — ESF equipment and a D4 T1. 3(SF,ESF) — D4 equipment and an ESF T1. 4(ESF,ESF) — ESF equipment and an ESF T1. 5(UF,UF) — unframed equ ipm en t on a n unf ra med T1 ( nev er

use this option on a T1 circuit provided by a telephone company).

6(SF,ZBT) — D4 equipment on a Z ero Bit Time Slot Insertion T1 (there are no ZBTSI T1 circuits, do not use this option).

7(ESF,ZBT) — ESF equipment on a ZBTSI T1 (there are no ZBTSI T1 circuits, do not use this option).

First value = DSX-1 equipment, second value = T1 circuit. 1(AMI,AMI) — AMI coded DSX-1 equipment on an AMI T1. 2(AMI,B8ZS) — AMI DSX-1 equipment on a B8ZS T1. 3(B8ZS,AMI) — B8ZS DSX-1 equipment on an AMI T1 (this

selection is problema tic unless the equipme nt is conf igured to use only 56K of each DS0 instead of 64K per DS0).

4(B8ZS,B8ZS) — B8ZS DSX-1 equipment on a B8ZS T1.

J) jitt buf Jitter Buffer selects

the size of the jitter buffer, in bits, on the DSX-1 and Network sides of the CSU.

Larger buff ers are more resistant to a jittery signal, smaller buffers introduce less delay.

R) eq crc Selects whether or

not the CSU will regenerate the CRC-6 error checking used in ESF framing on both, one, or no sides.

Y) xcode yel Selects whether

yellow alarms will be translated from the D4 bit 2 method to the ESF FDL method.

1(16,16) — Sets both buffers to 16 bit depth, less resilience to jitter and less delay.

2(40,16) — Sets DSX-1 side to 40 bits and network side to 16 bits.

3(16,40) — Sets the DSX-1 side to 16 bits and the network side to 40 bits.

4(40,40) — Sets the default value of 40-bit jitter buffer on both sides of the CSU.

1(PASS) — same type framing on both sides. 2(NET TO EQ) — ESF equipment on a non-E SF T1. 3(EQ TO NET) — non-ESF equipment on an ESF T1. 4(BOTH) — use in Drop and Insert mode if equipment and

T1 are both ESF. 1(OFF) — use for same type framing on both sides or to

have the CSU dr op yellow alarms with dissimilar framing. 2(NET TO EQ) — ESF equipment and D4 T1. 3(EQ TO NET) — D4 equipment on an ESF T1. 4(BOTH) — not used.

3

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Verilink SCC 2020 User Manual

Menu Option Description Instructions

Configuration

M) distance Cable length option,

used to increase DSX1 signal strength when DSX-1 cable is long.

L) lbO Line build out is used

to reduce the signal strength being sent to the T1 network.

New T1 circuits installed by a telephone company in the USA will have a smart jack, use 0db.

K) keep alive Selects the method

used to guarantee sufficient pulse density is sent to the T1 when the DSX-1 equipment has faile d or is disconnected.

The value “none” should not be used on a commercial T1 circuit as it violates T1 standards (AT&T 54016 and ANSI T1.403).

Choices are: (1)0-133 (2)133-266 (3)266-399 (4)399-533 (5)533-655, select the value that most nearly equals the length of the cable between the CSU and the local DSX-1 equipment.

(1) 0 db — use this value if a smart jack (network termination device) ha s been inst al led by the tele p hon e carrier, or if the first active device on the T1 is between 2,000 and 3,000 feet away.

(2) 7.5 db — use this value only if there is no smart jack and the first repeater is 1,000 to 2,000 feet away.

(3) 15 db — use this value only if there is no smart jack and the first repeater is zero to 1,000 feet away.

(1)none — no method of ke ep alive is used in the absence of a valid, framed DSX-1 signal , do not us e this val ue on a T1 circuit provided by a telephone company.

(2)loop — when the DSX-1 signal fails, the CSU loops data received from the T1 back toward the T1 to meet pulse density requirements.

(3)ais — the CSU sends a pattern of unframed all ones (Alarm Indication Signal) to the network during a DSX-1 equipment failure, thus alerting the carrier and far-end equipment to trouble on the T1.

(4)fais — the CSU sends a frame d pattern of all ones, this should not create a T1 level alarm, but voice switching equipment will see all 24 timeslots in a busy state.

T) alm thld Selects enabling or

disabling thresholds.

I) idle code Selects idle pattern to

be sent in 4K FDL, used for ESF circuits only, no effect on SF.

Z) density Selects density

enforcement technique.

Density should always be set to NONE on a B8ZS T1, B8ZS allows a full 64K per DS0.

Density should never be set to NONE on an AMI T1.

(1)disable — Alarm threshold function is shut off. (2)default — Defaul t val ues for alarm thresholds are

enabled. 1(flag's) — idle code of 01111110 is sent in Facilities Data

Link when no other traffic is present. 2(one's) — idle code of 11111111 is sent in Facilities Data

Link when no other traffic is present. (1)NONE — no density enf orcemen t, use this value only and

always on a B8ZS T1. (2)12 — The CSU begins stuffing ones into the user

datastream after 12 consecutive zeroes. (3)62411— The CSU enforces AT&T public ation 62411

density restrictions (average 12.5% minimum ones density). (4)80 0's — The CSU begins stuffing ones into the user

datastream after 80 consecutive zeroes (recommended). (5)15 0's — The CSU begins stuffing ones into the user

datastream after 15 consecutive zeroes.

Verilink SCC 2020 User Manual

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Configuration

Menu Option Description Instructions

C1-C5) canned config

V) Inband Management Commands

A) diu bus Se lects both the

Allows selection of any of five complete configurations which all use CSU mode (no DIU 21xx) and vary according to framing and line coding on EQ and Net sides.

Selects allowing or dis-allowing configuration by a remote user thr o ugh the FDL portion of an ESF T1.

“Mode” in which the CSU will operate (CSU, Mux or Drop & Insert) as well as which midplane data bus, if any, will be used to exchange data with any DIU 21xx modules.

In Mux mode, the SCC 2020 EQPT LED is always green.

Canned configur ation #1, EQPT=SF/A MI NET=ESF/AM I. Canned configur ati o n #2 , EQ PT = ES F /AMI NET=ESF /AM I. Canned configur ati o n #3 , EQ PT = SF /AMI NET=ESF/B8ZS. Canned configur ati o n #4 , EQ PT = SF/ B 8 Z S NET=ESF/B8 Z S. Canned configuration #5, EQPT=ESF/B8ZS NET=ESF/B8ZS.

Requires SCC firm ware revision 3.02 or higher and TAC 2010 firmware revision 1.6 or higher.

See the secti on Far-End Managem ent below.

(1)NONE — no data bus, CSU is in CSU mode. (2)A — Mux mode using data bus A. (3)B — Mux mode using data bus B. (4)C — Mux mode using data bus C. (5)B,D&I EQ — Drop and Insert mode toward eq uipment

(some DSX-1 timeslots routed to used.

(6)A,D&I NET — Drop and Insert toward the Net (some network timeslots routed to DSX-1 port, some others to one or more DIU modules) this is typical Drop And Insert.

DIU) rarely or neve r

LOCAL

B) diu clock Selects the source of

the Transmit Clock used by the CSU to transmit data toward the T1 network.

Note that in CSU mode (DIU Bus = NONE), this option is ignored, the SCC 2020 performs as though THRU timing were selected.

In Drop And Insert mode, use of THRU timing is suggested.

In Mux mode, if the far end CSU is set f or INT clock or if the carrier is using a DACS to provide a clock, then NET (recovered network clock) is required .

(1)THRU — The CSU derives transmit clock from the transmit datastream of the DSX-1 equipment, automatically selected in CSU mode, recommended in Drop & Insert mode, and invalid in Mux mode.

(2)INT — The CSU uses an internal oscillator to generate a

1.544 MHz clock. Used only in Mux mode, and then only at one end of a T1 on which the carrier uses no DACS.

(3)EXT 422 — The CSU uses a balanced clock signal provided by an external source through the DIN connector on the rear connector module.

(4)EXT TTL — The CSU uses an unbalanced (0V to +5V) clock signal provided by an external clock source through the DIN connector on the rear connector module.

(5)NET — The CSU uses the clock recove red from rec ei ve data on the T1 network port for the transmit clock, this is most often the desired option in Mux mode and is required if the network provides a clock (uses a DACS).

(6)EQ — The CSU recovers the DSX -1 T1 transmit clock to time the network transmit.

(7)TIU — The CSU uses a clock on data bus C produced by an optional TIU 2850 module inst al led in the same shel f.

(8)DIU — The CSU uses a clock provided by DTE connected to a data port on a DIU213x module, tail circuit timing requires this option.

3

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Verilink SCC 2020 User Manual

Menu Option Description Instructions

Configuration

P) prm Performance

O) poll far end If enabled on a point-

G) Alarm Determines whether

X) exit menu Exit this menu. Returns to the SCC 2020

Mode

Response Messages may optionally be sent in the 4K FDL portion of an ESF framed T1.

to-point ESF T1 , far end polling can monitor alar m s at a remote CSU.

or not alarm messages are presented.

The CSU portion of an SCC 2020, (a TAC 2010 CSU), has three

1(NO) — Performance response messages received from the network are ignored, no m essages are sent.

2(USER) — Performance response messages are allowed responses and information stored in the user ESF registers is made available. Used by pro-active carriers.

(1) yes — far end polling is used, requires FDL continuity from end to end, a DACS in the T1 usually terminates the FDL making this unusable, note that ESF is required to use this option.

(2) no — far end polling is not suppor t ed . 0(Disable) — Alarm reporting is turned off. 1(Enable) — Alar m reporting is enabled, messages will

appear on the Craft terminal as alar m s occur and clear.

distinctly different modes of operation. The mode is determined

DIU bus

DIU busDIU bus

on the

CSU Mode

by the selection for

In CSU mode the TAC 2010 does not use any data bus in the shelf to pass data to any other module. All 24 timeslots in the T1 signal are passed, unmodified, to the DSX-1 equipment port. In the transmit direction, the DSX-1 device is the timing source and the CSU behaves as if THRU timing is selected, despite what the menu may indicate. Any DIU21xx modules present in the shelf are igno red in terms of data flow.

Main Menu

.

Configuration Me nu

.

Mux Mode

A TAC 2010 (or SCC 2020) is in CSU mode whenever the DIU bus

NONE

option is set to

NONE

. A typical use of CSU mode would be for voice

NONENONE

only PBX applications.

In Mux mode, the DSX-1 equipment port is not used. All 24 timeslots of the T1 signal are available for use by some number of DIU 21xx module(s) assigned to the CSU. The CSU is configured to use one of the three data busses in the midplane of the shelf. Any associated DIU 21xx modules use this bus to accept receive data from and present transmit dat a to the CSU. The CSU multiplexes data from × ports on × DIU modules into the T1 transmit datastream.

A TAC 2010 (or SCC 2020) module i s in Mux mode when the DIU bus option is set to

AAAA, BBBB

CCCC

or

. A typical use of Mux mode would be for

data only applications.

Verilink SCC 2020 User Manual

3

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Configuration

Drop And Insert

Mode

Drop and Insert mode combines th e feat ures of CSU mode and Mu x mode. The DSX-1 equipment port is used for some of the T1 timeslots and data bus A is used to pass other timeslots to some DIU 21xx module(s). Since the CSU can not control the transmit data rate of the DSX-1 equi pment, the CSU is usually configured to recover transmit cl ock from the DSX-1 datastream (THRU timing) .

A, D&I NET

Drop and Insert mode is established by selecting

A, D&I NET

A, D&I NET A, D&I NET

for the

DIU bus option. When this is done, a new option field appears in

Configuration Menu

the

Figure 3-3 Select D&I DSOs Field

A) diu bus A,D&I NET

A) diu bus A,D&I NET A) diu bus A,D&I NET

P) prm OFF

P) prm OFF P) prm OFF

D) select D&I DS0s (1,-,24)

D) select D&I DS0s (1,-,24) D) select D&I DS0s (1,-,24)

_ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

G) Alarm ENABLE

G) Alarm ENABLE G) Alarm ENABLE

, beneath the PRM field, as shown below:

This field is used to select the timeslots for data use. Any timeslots shown in this field will be placed on data bus

AAAA

for use by a DIU21xx module. The DSX-1 equipment will receive a framed allones signal in those timeslots, making them appear busy to a PBX. Timeslots not listed in this field are allowed to pass unmodified to the DSX-1 equipment.

Node Administration

In addition to the T1 CSU functions, the SCC 2020 is also an SNMP node controller. The beneath it, are used to configure site, Ethernet and SLIP address information.

Some functions on the firmware upgrade procedures.

Node Administration Menu

The SCC 2020

Most of the commands on the documented in Table 3-5 below.

Some of the menu options on the produce submenus with detailed selections, for instance the

Modem Configuration Menu

Node Administration Menu

Main Menu

. Figure 3-4 shows the options presented.

Node Administration Menu

is detailed in Table 3-6.

, and submenus

support

is accessed by selecting O on the

are

Node Administration Menu

will

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Verilink SCC 2020 User Manual

Figure 3-4 Node Administration Menu

--- NODE CONTROLLER MENU ---

--- NODE CONTROLLER MENU --- --- NODE CONTROLLER MENU ---

T) time

T) time T) time D) date

D) date

D) date D) date I) node id

I) node id

I) node id I) node id N) site name

N) site name

N) site name N) site name A) Slip Configuration

A) Slip Configuration

A) Slip Configuration A) Slip Configuration E) Ethernet Configuration

E) Ethernet Configuration

E) Ethernet Configuration E) Ethernet Configuration M) Modem Configuration

M) Modem Configuration

M) Modem Configuration M) Modem Configuration G) IP over T1 Configuration

G) IP over T1 Configuration

G) IP over T1 Configuration G) IP over T1 Configuration O) IP Gateway

O) IP Gateway

O) IP Gateway O) IP Gateway Q) IP Route

Q) IP Route

Q) IP Route Q) IP Route H) trap host ip address

H) trap host ip address

H) trap host ip address H) trap host ip address C) community string (read)

C) community string (read)

C) community string (read) C) community string (read) W) community string (write)

W) community string (write)

W) community string (write) W) community string (write) F) flash download

F) flash download

F) flash download F) flash download B) boot

B) boot

B) boot B) boot R) reset com ports

R) reset com ports

R) reset com ports R) reset com ports S) node controller status

S) node controller status

S) node controller status S) node controller status P) set privileged password

P) set privileged password

P) set privileged password P) set privileged password U) set unprivileged password

U) set unprivileged password

U) set unprivileged password U) set unprivileged password Y) element download

Y) element download

Y) element download Y) element download X) exit menu

X) exit menu

X) exit menu X) exit menu

Configuration

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

If any changes are made to the Ethernet or SLIP configurations, those changes do not take effect until the module is rebooted.

Rebooting an SCC 2020 by using the boot command has no effect on user data passing through the SCC 2020 module.

NOTE:

The SLIP IP address and the Ethernet IP address

must

different network segments in terms of the subnet masks in use. If the SLIP and Eth ernet addresses are set to reflect the same network segment an error message “Sendto: new socket failed” will repeat constantly until the error is corrected and the SCC 2020 is rebooted.

Table 3-5 Node Administration Commands

Menu Option Description Instructions

T) time Sets the time of

day. D) date Sets the date. Enter new date (mm-dd-yy): — use format shown. I) node id Sets a numeric

identifier.

Enter new time (hh:mm:ss): — use the format shown.

Maximum field length = ten digits, distinguishes one node from another, each node in a network must have a unique node id.

reflect

Verilink SCC 2020 User Manual

3

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Configuration

Menu Option Description Instructions

Site Name: Tech Pubs SCC 2020 Change (Y/N)?

N) site name Sets an alpha-

numeric identifier

used to tell one

node from another.

A) Slip Configuration Calls a submenu

which is used to

configure the RS-

232 electrical, DB-9

physical, Serial Line

Internet Protocol

port on the rear

connector module.

Site Name: Tech Pubs SCC 2020 Change (Y/N)?

Site Name: Tech Pubs SCC 2020 Change (Y/N)?Site Name: Tech Pubs SCC 2020 Change (Y/N)?

selected, a second prompt appears:

New Site Name (40)

New Site Name (40)New Site Name (40)

alpha-nume ri c characters .

---- host configuration for sli p ----

---- host configuration for sli p ---- ---- host configuration for sli p ----

L) Slip Local ip address : 192.94.46.222

L) Slip Local ip address : 192.94.46.222 L) Slip Local ip address : 192.94.46.222 P) Slip Peer ip address : 192.94. 46.101

P) Slip Peer ip address : 192.94. 46.101

P) Slip Peer ip address : 192.94. 46.101 P) Slip Peer ip address : 192.94.46.101 S) Slip Subnet Mask : 255.255.255.0

S) Slip Subnet Mask : 255.255.255.0

S) Slip Subnet Mask : 255.255.255.0 S) Slip Subnet Mask : 255.255.255.0 X) exit

X) exit

X) exit X) exit

: — enter a site name using up to 40

— if yes is

E) Ethernet Configuration

M) Modem Configuration

SLIP may be used in

lieu of or along with

the Ethernet

connectivity

described below.

If SLIP will not be

used, leave the SLIP

Local IP address set

to 0.0.0.0.

Calls a short

submenu which is

used to configure

the AAUI-14

Ethernet connector

on the rear

connector module.

An Ethernet

transceiver which

supports both

10BaseT and

10Base2 is pro vided

with each SCC

2020.

Calls the Modem

Configuration

Menu.

— the SLIP Local I P ad d ress is for this SCC 2020. — the SLIP Peer address must be set for the trap host IP

address in curr ent SCC firmware . — the SLIP Subnet mask shown is for a TCP/IP class C

address, use the normal subnet mask conventions.

---- host configur ation for Ethernet ----

---- host configur ation for Ethernet -------- host configur ation for Ethernet ----

L) Ethernet Local ip address : 192.94.45.242

L) Ethernet Local ip address : 192.94.45.242 L) Ethernet Local ip address : 192.94.45.242 S) Ethernet Subnet Mask : 255.255.255.0

S) Ethernet Subnet Mask : 255.255.255.0

S) Ethernet Subnet Mask : 255.255.255.0 S) Ethernet Subnet Mask : 255.255.255. 0 T) Ethernet Type : Ethernet/DIX

T) Ethernet Type : Ethernet/DIX

T) Ethernet Type : Ethernet/DIX T) Ethernet Type : Ethernet/DIX X) exit

X) exit

X) exit X) exit

— the Ethernet local IP address is for this SCC 2020. — the Ethernet subnet mask shown is for a TCP/IP class C

address, use normal subnet mask conve nti ons. — the Ethernet type

Required only if SLIP will be used over a dial-up modem connection, see the table below.

be set to Ethernet/DIX.

must

G) IP over T1 Configuration

O) IP Gateway Sets the address for

Q) IP Route Calls a submenu

3

-12

Not applicable. IP over T1 is not supported in the SCC 2020.

a device, usually a

router, used to

reach IP addresses

on a different

network segment.

used to configure IP

routes.

Verilink SCC 2020 User Manual

---- Internet Gateway Configuration ----

---- Internet Gateway Configuration ---- ---- Internet Gateway Configuration ----

G) Internet Gateway IP address : 128.0.0.0

G) Internet Gateway IP address : 128.0.0.0 G) Internet Gateway IP address : 128.0.0.0

— if no IP gateway is used, leave the default value as shown, if a gateway device is used, type “G” and enter the IP address of the gateway.

IP routes functions o nly when using ESF T1 circuits wit h end-to-end FDL continuity, see the section on IP routes below.

Menu Option Description Instructions

Configuration

H) trap host ip address

C) community string (read)

W) community string (write)

F) flash download Used to upgrade

B) boot Reboots (resets) the

Used to configure IP

addresses fo r up to

four SNMP

managers to which

alarm information

(trap messages) will

be sent.

Set number of trap

hosts equal to the

number of IP

addresse s us e d .

SNMP community

string, a

rudimentary

password.

SNMP community

string, a

rudimentary

password.

SCC firmware.

SCC 2020.

---- host configuration for traps ----

---- host configuration for traps ---- ---- host configuration for traps ----

N) Number of trap hosts : 1

N) Number of trap hosts : 1 N) Number of trap hosts : 1

1) host 1 ip address : 192.94.45.111

1) host 1 ip address : 192.94.45.111 1) host 1 ip address : 192.94.45.11 1

2) host 2 ip address : 0.0.0.0

2) host 2 ip address : 0.0.0.0 2) host 2 ip address : 0.0.0.0

3) host 3 ip address : 0.0.0.0

3) host 3 ip address : 0.0.0.0 3) host 3 ip address : 0.0.0.0

4) host 4 ip address : 0.0.0.0

4) host 4 ip address : 0.0.0.0 4) host 4 ip address : 0.0.0.0 X) exit

X) exit

X) exit X) exit

Community string (Read): public Change (Y/N)?

Community string (Read): public Change (Y/N)?Community string (Read): public Change (Y/N)? Community string (64):

Community string (64):

Community string (64):Community string (64):

The current value for the read communi ty strin g is “pub lic” and a string of up to 64 characters can be entered.

Community string (Write): Right Change (Y/N)?

Community string (Write): Right Change (Y/N)?Community string (Write): Right Change (Y/N)? Community string (64)

Community string (64)

Community string (64)Community string (64)

The current value for the write community string is “right” and a string of up to 64 characters can be entered.

See the section “Far-End Management” in this chapter.

Current Bank: 'B'; flash bank to boot from (A or B)

Current Bank: 'B'; flash bank to boot from (A or B)Current Bank: 'B'; flash bank to boot from (A or B)

required when any IP address / Ethernet configurations have been changed, rebooting does not impact user data.

:

—

R) reset com ports Resets the hardware

used for Craft port

and SLIP port

connections. S) node controller

status P) set privileged

password

U) set unprivileged password

Y) element download Used for upgrading

X) exit menu Exits this menu. Returns to SCC 2020

Modem Configuration

Not applicable. Produces error message:

Sets password for

the privileged level

operator.

Sets password for

the unprivileged

level operator.

modules other than

the SCC 2020.

When M is selected on the SCC 2020

Modem Configuration Menu

the

No confirmation is required or given, the command prompt returns immediately.

Used if a port seems to be in a locked condition.

Current Privileged Pass word : <> Chan ge (Y /N) ?

Current Privileged Pass word : <> Chan ge (Y /N) ?Current Privileged Pass word : <> Chan ge (Y /N) ?

Privileged users may make configuration changes.

Current Unprivileged Pa s sw o rd : <> Chan ge (Y /N ) ?

Current Unprivileged Pa s sw o rd : <> Chan ge (Y /N ) ?Current Unprivileged Pa s sw o rd : <> Chan ge (Y /N ) ?

Unprivileged users have read-o nly access, they may not make configur at i o n ch an ges .

See the section “Element Download” in this chapter.

Not Implemented in this release

Not Implemented in this releaseNot Implemented in this release

Main Menu

.

Node Administratio n Menu

appears.

.

,

Verilink SCC 2020 User Manual

3

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Configuration

Figure 3-5 Modem Configuration Menu

---- Modem Configuration ----

---- Modem Configuration ---- ---- Modem Configuration ----

Modem Status: NOT CONNECTED

Modem Status: NOT CONNECTED Modem Status: NOT CONNECTED

D) Answer : DISABLED

D) Answer : DISABLED D) Answer : DISABLED C) Answer Command : AT &C1&D2&Q0 S0=1

C) Answer Command : AT &C1&D2&Q0 S0=1

C) Answer Command : AT &C1&D2&Q0 S0=1 C) Answer Command : AT &C1&D2&Q0 S0=1 T) Answer Inactive Timeout : 0 seconds

T) Answer Inactive Timeout : 0 seconds

T) Answer Inactive Timeout : 0 seconds T) Answer Inactive Timeout : 0 seconds

B) Dial-Out : DISABLED

B) Dial-Out : DISABLED B) Dial-Out : DISABLED U) Dial-Out Command : AT &C1&D2&K3&Q0 X4 S0=0 DT

U) Dial-Out Command : AT &C1&D2&K3&Q0 X4 S0=0 DT

U) Dial-Out Command : AT &C1&D2&K3&Q0 X4 S0=0 DT U) Dial-Out Command : AT &C1&D2&K3&Q0 X4 S0=0 DT N) Dial-Out Number :

N) Dial-Out Number :

N) Dial-Out Number : N) Dial-Out Number : R) Dial-Out connect retries : 0

R) Dial-Out connect retries : 0

R) Dial-Out connect retries : 0 R) Dial-Out connect retries : 0 K) Dial-Out connect timeout : 60 seconds

K) Dial-Out connect timeout : 60 seconds

K) Dial-Out connect timeout : 60 seconds K) Dial-Out connect timeout : 60 seconds I) Dial-Out Inactive timeout : 0 seconds

I) Dial-Out Inactive timeout : 0 seconds

I) Dial-Out Inactive timeout : 0 seconds I) Dial-Out Inactive timeout : 0 seconds

S) Dial-Out W) Set default commands

S) Dial-Out W) Set default commands S) Dial-Out W) Set default commands A) Answer H) Hangup

A) Answer H) Hangup

A) Answer H) Hangup A) Answer H) Hangup X) exit

X) exit

X) exit X) exit

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

Modem

Configuration

Options

Modem Configuration Menu

The

is used to support an optional dial-up modem which may be connected to the port labelled Management Port In on the rear connector module. This port supports the Serial Line Interface Protocol, a subset of TCP/IP designed to support Internet protocols across a low-speed RS-232 Wide Area Network connection.

The Modem Status field on the

Modem Configuration Menu

reflects the status of the Data Carrier Detect lead (DCD) on the Management Port In.

If SLIP is used, it may be used with or without a modem. To use SLIP without a modem, be certain that the Answer and Dial-Out fields are set to DISABLED.

The options on the

Modem Configuration Menu

are documented

in Table 3-6 below.

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Verilink SCC 2020 User Manual

Table 3-6 Modem Configuration Commands

Menu Option Description Instructions

Configuration

D) Answer Toggles answer mode

C) Answer Command Command string to be

T) Answer Inactive Timeout

B) Dial-Out Toggles on/off dialing a

U) Dial-Out Command

N) Dial-Out Number Phone number to call. Enter a phone number if using dial-out. R) Dial-Out connect

retries K) Dial-Out connect

timeout

on/off.

sent to modem to setup auto-answer mode.

Length of time an incoming call is allowed to be idle before the modem is disconnected.

stored number to report alarms to a trap host.

Command sent to modem to initiate a call.

Number of times to retry dialing out to trap host.

Length of time to wait for a connection after initiating a di al-out call.

Select ENABLE to support answering incoming calls. Select DISABLE to inhibit answering calls.

The default auto-answer string is shown in Figure 3-5, use this string or modify it per the requirements of your modem.

Enter a value, in seconds, for idle time before disconnect (range = 1 to 255), if this value is reached, the DTR lead is toggled low to disconnect the modem (modem should be set for [&D2] disconnect on DTR low).

Select ENABLE to support dialing out to a trap host when alarm conditions occur or clear or DISABLE if the SCC 2020 is never to dial out to a trap host.

The default dia l- o ut s tring is shown in Figure 3-5, use this string or modify it per the requirements of your modem and phone line.

Enter a number in the range of 1-255, or zero to disable the retry function.

Enter a value, in seconds, to wait for a connection after dialing a call to a trap host, range = 10 to 255 seconds.

I) Dial-Out Inactive timeout

S) Dial-Out Command us ed for

W) Set default commands

A) Answer Sends answer string. Use this command to set modem to answer mode by

H) Hangup Disconnects modem. Causes modem to disconnect now by dropping DTR. X) exit Exits to menu above. Returns to

Length of time a dial-out call is allowed to be idle before the modem is disconnected.

testing. Rests all modem menu

items to default values.

Enter a value, in seconds, for idle time before disconnect (range = 1 to 255), if this value is reached, the DTR lead is toggled low to disconnect the modem (modem should be set for [&D2] disconnect on DTR low).

The Dial-Out command causes the modem to dial now.

Use this command to set all options on this menu to their original, factory default values, disables modem.

sending the config ured answer command now .

Node Administration Menu

.

Verilink SCC 2020 User Manual

3

-15

Configuration

Far-End Management

You may be able to access the SCC module in a far-end node and, through it, option any module in the node.

Requirements

For far-end management to work , t he foll owing c ondit ions must be true:

•

The SCC firmware revision must be 3.x or newer at both ends. (A limited distribution release of version 2.06 will also work.)

•

The TAC firmware in the SCC 2020 control l ing the node must be version 1.6 or newer. (TAC firmware revision is indicated in the CSU configuration menu.)

•

The user must login to the Craft interface (locally or via Telnet) using the special password “800far”.

•

The CSU module (SCC 2020 or TAC 2010 only) with the T1 connecting remote sites must have TAC firmware 1 .6 or newer.

•

The T1 circuit connecting the sites must use ESF framing.

•

The ESF framing on the T1 circuit must be continuous from end-to-end.

NOTE:

Many T1 circui ts , espe cial ly t hose h andle d by a l ong dist anc e carrier, pass through a Digital Access and Cross-connect System (DACS). For far-end management to work on a T1 passing through a DACS, the DACS must map the Facilities Data Link (FDL) portion of the ESF framing through to each end. This option is usually not set by default in the DACS. Ask your carrier if the T1 has FDL continuity.

Exceptions

3

-16

Far-end management will not work if any of the following are true:

•

The T1 circuit uses D4 framing.

•

The T1 circuit passes through a DACS which does not convey ESF framing from end-to-end because FDL pass through is not on. This condition is most often true for T1s which pass through a DACS.

•

The user fails to login using the special password “800far”.

•

The T1 circuit connecting th e two sit e s is terminated at either end with any of the following modules:

• SCC 2130, TAC 2130, TAC 2130-S, or TAC 2130-T.

• Any other module which is no t an SCC 202 0 or a TAC 20 10.

Verilink SCC 2020 User Manual

Configuration

Far-End

To access the node at the far end, follow these steps:

Procedure

1. Login to th e Cr a f t int e rf a ce using the pass w o r d “8 00far”.

2. At the session. A message appears:

Setup link to Far End Equipment, please wait!

3. Next a message appears which varies according to the type of shelf (Multi-line or Dual-line) detected:

Poll Far End Equipment. Slots: 2

4. Then a men u appears (Figure 3-6) with the word prominently displayed in the shelf/slot map area. The command prompt also changes, indicating

NEAR

Figure 3-6 Far-End Main Menu

-- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. --

-- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. -- -- VERILINK SCC NODE CONTROLLER at[1,1]: FW Rev 3.02, Jan 14, 1999. -FLASH BANK: B Serial Number: 00655503

FLASH BANK: B Serial Number: 00655503

FLASH BANK: B Serial Number: 00655503FLASH BANK: B Serial Number: 00655503 Ethernet Address: A0:6A:00:0A:00:8F:

Ethernet Address: A0:6A:00:0A:00:8F:

Ethernet Address: A0:6A:00:0A:00:8F:Ethernet Address: A0:6A:00:0A:00:8F: Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0

Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0

Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0Slip Local IP Address: 192.94.46.37, Subnet Mask: 255.255.255.0 Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0

Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0

Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0Ethernet Local IP Address: 192.94.45.242, Subnet Mask: 255.255.255.0

SITE NAME: Tech Pubs SCC 2020 #2 NODE ID: 851

SITE NAME: Tech Pubs SCC 2020 #2 NODE ID: 851SITE NAME: Tech Pubs SCC 2020 #2 NODE ID: 851

Main Menu

.

, use the “F“ command to begin y our fa r-end

FAR

REMOTE

instead of

REMOTE <- REMOTE SLOT ->

REMOTE <- REMOTE SLOT -> REMOTE <- REMOTE SLOT -> SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13

SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13

SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 1 DL [C]

1 DL [C]

1 DL [C] 1 DL [C]

KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS,

KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS, KEY: C = CSU, D = DIU, F = DIU/DDS, R = SRD, I = IDCSU, T = TU, A = APS, B = DIU/DBU, S = SMDS, L = HLM

B = DIU/DBU, S = SMDS, L = HLM

B = DIU/DBU, S = SMDS, L = HLM B = DIU/DBU, S = SMDS, L = HLM

S) shelf/slot D) diagnostics

S) shelf/slot D) diagnosticsS) shelf/slot D) diagnostics N) near element O) node administration

N) near element O) node administration

N) near element O) node administrationN) near element O) node administration F) far element M) monitor alarms (OFF)

F) far element M) monitor alarms (OFF)

F) far element M) monitor alarms (OFF)F) far element M) monitor alarms (OFF) C) configuration A) view alarm buffer

C) configuration A) view alarm buffer

C) configuration A) view alarm bufferC) configuration A) view alarm buffer P) performance X) log off

P) performance X) log off

P) performance X) log offP) performance X) log off

[1,1] FAR TAC 2010 >

[1,1] FAR TAC 2010 >[1,1] FAR TAC 2010 >

5. To end your far-end session and return to the local SCC, use the “N” command to select the near (where you are) node.

NOTE:

During a far-e n d se s s ion most functi on s under the

Administration Menu

and the

Diagnostics Menu

available. This is done to preve nt the user from initiating a loopback that woul d disrupt the far-end session.

Node

are not

Verilink SCC 2020 User Manual

3

-17

Configuration

Firmware Upgrade Procedures

Firmware upgrades performed using an SCC 2020 may be divided into two categories: upgrades of the SCC module’s own firmware, and upgrades in which the SCC broadcasts new firmware to other module(s) in the node.

Upgrading SCC Modules

To use these

procedures you

will need

To use these

procedures you

will need to know

The two procedures below are used to upgrade the firmware of an SCC 2020. In each case you must be running from the opposite flashbank. To upgrade flashbank A, you must be running from flashbank B. To upgrade flashbank B, you must be running from flashbank A.

•

A file containing a new revision o f SCC f i rmware.

•

An Ethernet or SLIP connection to the SCC 2020 (for performing FTP file transfers).

•

a Telnet applicati on o r a di rect t erm inal co nn ecti on t o t he SCC Craft interface.

•

An FTP

NOTE:

•

Basic TCP/IP terminology.

•

How to use FTP.

•

How to use the specific FTP server program you have selected.

server

Most common FTP programs are CLIENTS, not SERVERS. Be sure you have an FTP server program. Such programs, often distribute d as sha r e w a r e, may be found on Worl d W id e Web download sites.

application.

Before beginning

this upgrade

3

-18

•

The IP address of the FTP server.

•

The specific path and filename to the new SCC firmware file.

1. If need be, install the FTP server program which you have selected.

2. If need be, copy the file containing the new SCC firmware to a known location (path) on the comp uter r unning t he FTP ser ver application.

3. Document the CSU configu ration of the CS U portion of the SCC card being upgraded.

Verilink SCC 2020 User Manual

Configuration

Overview

SCC firmware can be upgraded by using FTP to transfer the new executable files into the card. The procedure will vary according to what version is currently installed and what new code version is to be used.

In most cases it is advisable to download new versions of SCC code to flashbank B only, leaving the original code as shipped in flashbank A. In this way the user is always able to fall back to the known code revision if a problem is noted with the upgrade.

Due to increases in file size, since version 1.81 of SCC firmware, the executable is distributed in compressed form. After the code has been transferred to the SCC using FTP it must be decompressed. Earlier versions of SCC code do not have the need ed routines to do this decompression. Therefore, when upgrading from a version below 1.8x to 1.8x or higher, one must first download a new compile of SCC version 1.69C to flashbank A. This will enable the decompression of the new code.

Two procedures are documented below. The first is used to get version 1.69C into flashbank A in order to allow subsequent download of compressed code. This need be done only if the firmware currently in flashbank A is a re lease prior to version 1.81 (other than 1.69C). The second is a general procedure used to download new code to flashbank B.

Downloading Version 1.69C to Flashbank A

You will need to

know

Step By Step

Use this procedure only if the firmware currently installed in the SCC 2020 is any revision earli e r than 1.81, except 1.69C.

The top line of the SCC 2020 firmware is currently running and the second line indicates which flashbank the current firmware was loaded from. To determine which version of firmware is in the other flashbank, use the boot option on the flashbank.

If the SCC 2020 already has version 1.81 or newer or version 1. 69C, skip to the section labeled “Upgrading Flashbank B”.

•

The IP address of the FTP server.

•

The absolute path to the directory containing the Verilink SCC upgrade file (FLASH.A_U in this case).

•

The password, if required, for accessing the FTP server.

1. Using either direct connection to the Craft port, or Telnet, open a Craft session to the SCC card to be upgraded.

2. Use the “O” command to select the

Menu

Node Administration Menu

.

Main Menu

indicates which version of

and select that

Node Administration

3. Type “B” to reboot.

Verilink SCC 2020 User Manual

3

-19

Configuration

NOTE:

The boot command reboots only the SNMP and Craf t interface functions of the SCC 2020, any user data passing through the CSU port ion of the SC C 202 0 wil l no t be affe cte d.

4. Select flashbank B.

5. When the

pSH+>

pSH+>pSH+>

prompt returns type “

FTP <IP address of FTP

pSH+>

server>”.

6. Login to the FTP server using the method required by your FTP server program.

7. Use the “CD” command to change to the directory where you previously placed the file FLASH.A_U.

8. Use “

DIR”

or “

ls -l”

, as appropriate, to produce a long display of

the files in this directory.

9. Record the file size of the FLASH.A_U file.

10. Issue the command “

NOTE:

If you fail to issue the command

binary”.

binary

, the file will be

corrupted when it is transferred.

11. Issue the command “

get flash.a_u flash.hex”.

The file is now transferred from the F TP server to a RAM di sk in the SCC card. If you are using Ethernet, this process will take about a minute, more or less, depending on LAN segment traffic. If using FTP over SLIP instead of Ethernet, it may require 15 to 30 minutes to transfer the file.

12. End the FTP session by typing

pSH+>

to the

pSH+>

pSH+>pSH+>

prompt in the SCC 2020.

“quit”

and you will be returned

13. Confirm that the transfer was successful by issuing the

”

command “

ls -l

and comparing the size of FLASH.HEX to FLASH.A_U as recorded in step 9. If the file sizes do not match, DO NOT PRO CEED, instead type “

rm flash.hex”

to

remove the incorrect siz e fil e and return to step 5.

14. If the file sizes match in step 13, type “

craft”

and login to the

Craft interface.

15. Select the

Node Administration Menu

16. Select flash download by typing

by typing “

“F”.

O”.

17. Select flashbank A.

3

-20

”

18. Once the flash download is complete, use the “

B

command to boot. Type “A” to select flashbank A . You will see th at you are running version 1.69C. Now proceed to upgrade bank B.

Verilink SCC 2020 User Manual

Configuration

Upgrading Flashbank B

You will need to

know

Use this procedure to upgrade flashbank B only if one of the following is true:

• Flashbank A contains ve rsi on 1.69C firmware.

• Flashbank A contains a ve rsion of firmware higher than

1.80.

The top line of the SCC 2020 firmware is currently running and the second line indicates which flashbank the current firmware was loaded from. To determine which version of firmware is in the other flashbank, use the boot option on the flashbank..

•

The IP address of the FTP server.

•

The absolute path to the directory containing the Verilink SCC upgrade files.

•

The password, if required, for accessing the FTP server.

NOTE:

If you received the Verilink SCC files in a PKZIPped format, first extract them using PKUNZIP. Two files may be found, FLASH.A and FLASH.B. For this procedure only FLASH.B is required.

Node Administration Menu

Main Menu

indicates which version of

and select that

Step by Step

1. Using either direct connection to the Craft port, or Telnet, open a Craft session to the SCC card to be upgraded.

2. Use the “O” command to select the

Menu

.

“

3. Type

NOTE:

4. Select flashbank A.

5. When the

server>”.

6. Login to the FTP server using the method required by your FTP server program.

7. Use the “ previously placed the file FLASH.B.

8. Use “ the files in this directory.

B

” to reboot.

The boot command reboots only the SNMP and Craf t interface functions of the SCC 2020, any user data passing through the CSU port ion of the SC C 202 0 wil l no t be affe cte d.

pSH+>

DIR”

pSH+>

pSH+>pSH+>

CD”

or “

prompt returns type “

command to change to the direc to ry where you

ls -l”

, as appropriate, to produce a long display of

Node Administration

FTP <IP address of FTP

Verilink SCC 2020 User Manual

3

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Configuration

9. Record the file size of the FLASH.B file.

10. Issue the command “

NOTE:

11. Issue the command “ The file is now transferred from the F TP server to a RAM di sk in the

SCC card. If you are using Ethernet, this process will take about a minute, more or less, depending on LAN segment traffic. If using FTP over SLIP instead of Ethernet, it may require 15 to 30 minutes to transfer the file.

12. End the FTP session by typing “

13. Confirm that the transfer was successful by issuing the

14. If the file sizes match in step 13, type “

If you fail to issue the command “ corrupted when it is transferred.

pSH+>

to the

command “ FLASH.B as recorded in step 9. If the file sizes do not match, DO NOT PROCEED, instead type “ incorrect size file and return to step 5.

Craft interface.

pSH+>

pSH+>pSH+>

ls -l”

prompt in the SCC 2020.

binary”.

binary”

get flash.b flash.hex

quit”

and you will be returned

and comparing the size of FLASH.HEX to

rm flash.hex

, the file will be

”.

”

to remove the

craft”

and login to the

Element Download

15. Select the

16. Select flash download by typing “

17. Select flashbank B.

18. Once the flash download is complete, use the “B” command to boot. Boot from flashbank B. Login to the craft interf ace of the SCC and verify that the versio n of firmware being executed, as shown on the top line of the version you just installed.

If you received new firmware for both flashbank A and flashbank B, it is not necessary to upgrade both flashbanks to the same revision. It may be more desirable to lea ve the original version of firmware in flashbank A pe rmanent ly, or wh ile the new fi rmware i n b ank B i s tested.

To upgrade flashbank A, use the first procedure listed in this section “Downloading Version 1.69C to Flashbank A”, substituting the filename FLASH.A for FLASH.A_U.

The SCC 2020 module can be used to broadcast new versions of firmware to other modules in the node. In some cases, it can be used to upgrade remote modules through a T1 circuit. The procedure for element downloads is as follows:

Node Administration Menu

F”.

by typing “

Main Menu

O”.

, is the

3

-22

Verilink SCC 2020 User Manual

Configuration

1. Place the download file received from Verilink in a known path on an FTP server.

2. Connect to the SCC 2020 directly or using Telnet.

pSH+>

3. At the FTP server, “

pSH+>

pSH+>pSH+>

prompt, issue the command to connect to the

FTP 192.94.45.229

”

(use the IP address of your

FTP server).

4. Navigate to the directory where the Verilink upgrade file is located by using the “

cd”

command.

5. Set the transfer type to binary by typing “

6. Transfer the file to the SCC 2020 by typing “

binary”.

get myfile.ext”

the actual name of the file received from Verilink).

7. Now end the FTP session by typing “

pSH+>

8. At the

pSH+>

pSH+>pSH+>

prompt, type “

9. Type “O” for the

10. Type “Y” for the

Element Download Menu

The

Node Administration Menu

Element Download Menu

craft”

is shown in Figure 3-7. The

quit”.

to enter the Craft interface.

.

commands presented are documented in Table 3-7

Figure 3-7 Element Download Menu

---- element download ----

---- element download ---- ---- element download ----

T) element : ----

T) element : ---- T) element : ----

F) file :

F) file : F) file :

S) shelf : 0 - 0

S) shelf : 0 - 0 S) shelf : 0 - 0

L) slot : 0 - 0

L) slot : 0 - 0 L) slot : 0 - 0

D) dwnload

D) dwnload D) dwnload

X) exit menu

X) exit menu X) exit menu

(use

.

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

The commands used on the

Element Download Menu

will vary

according to:

•

The type of application mod ul e (s) you are upgrading.

•

The name of the file provided for the upgrade.

•

The shelf and slot location of the module(s).

•

Whether the module to be upgraded resides in the local node or a remote location.

NOTE:

For remote upgrade to work, the locations must be connected with a T1 which has ESF framing and an uninter rupted Facilities Data Link (FDL). In very many cases the T1 will be

Verilink SCC 2020 User Manual

3

-23

Configuration

routed through a Digital Access and Crossconnect System (DACS) and the FDL will be terminated at the DACS —in these cases remote upgrade will not function.

The commands are used as follows:

Table 3-7 Element Download Commands

Menu Option Description Instructions

T) element Selects type of module to be

upgraded, a list is presented.

To upgrade the CSU portion of an SCC 2020, select TAC

2010. Selections 9 and 10 will not

function unless the sites are connected with an ESF T1 which has a continuous Facilities Data Link (FDL) link between them.

To test for a continuous FDL, attempt to reach the Far Element from the Main Menu.

F) file Name of the upg rade file. Use the name as it was supplied by Verilink. S) shelf Shelf or range of shelves Enter a single number or a range as in: 1-4. L) slot Slot or range of slots. Enter a single number or a range as in: 1-13. D) dwnload Starts the download. Set all other parameters first, then issue the D command. X) exit menu Exits to menu above. Returns to

(1)TAC 2010 — a TAC 2010 CSU or an SCC 2020. (2)TAC 2130 — An IDCSU (Integrated DSU/CSU). (3)TAC 2110 — an Automatic Prote ction Switch (APS)

CSU. (4)DIU 2130 — A two-port DSU module. (5)DIU/NMS — A modified DIU 21 30 which supports

mapping done by the carrier to DDS remote circuits. (6)DIU/DBU — Modified DIU 2130 which supports

external dial-backup function. (7)DDS 2140 — a DIU 2140 subrate data multiplexer 5

port RS-232 DSU. (9)FAR TAC 2130 — an IDCSU at a remote site. (10)FAR TAC 2110 — an APS CSU at a remote site. (11)DIU/HLM — a DIU 2131, V.35+RS-232 two-port DSU.

Node Administration Menu

.

Thumbwheel Switches

The thumbwheel switches on the front of the SCC 2020 module are provided as a measure of last resort for configuring the SCC, and/or application modules it controls, when terminal access to the Craft interface is not possible.

It is preferred practice to use the Craft interface, a Telnet session, or an SNMP manager instead of the thumbwheels.

The SCC 2020 is able to control up to 51 other modules in up to 4 shelves. The thumbwheel switches are only able to address t he first 30 slots, thus it is not possible to use th umbwheel commands to configure a module if it is in the 31st to 52nd slot of a four shelf node.

3

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Verilink SCC 2020 User Manual

Configuration

Thumbwheel Procedure

A four-step procedure is used for each thumbwheel command:

1. Set the thumbwheel to the number, 01 through 30, equal to the slot number of the module to be optioned. If a node consists of Multi-line shelves, the first slot in shelf two would be numbered as 14 and the last slot 26. In a node consist ing of all Dual-line shelves, the first (left-hand) slot of a second shelf is number 03.

2. Rapidly press the EXE pushbutton twice, as if double-clicking a mouse. If the SCC 2020 accepts your double-click, the STAT LED on the selected module will begin to blink green to off. If the STAT LED does not begin to blink tr y doubl e clicki ng again at a slightly faster or slower rate. Do not proceed to step 3 until the STAT LED on the desired module begins to blink. Once the STAT LED does begin to blink, steps 3 and 4 must be completed within 60 seco nds or the thumbwheel command procedure will time-out.

3. Set the thumbwheel switches to the command value which is to be used, per Table 3-8 below.

4. Double-click the EXE pushbutton again. If the SCC 2020 module accepts your double-click, the STAT LED on the selected module will stop blinking green to off and return to some other state. If the STAT LED on the module continues to blink green to off, the SCC 2020 did not accept your doubleclick. Try double-clicking again, at a faster or slower rate. If you are not successful within 60 seconds of the time you selected the module in step 2, the module will timeout and return to its normal state . If this happens, start over with step 1 of this procedure.

Thumbwheel Commands

Table 3-8 Thumbwheel Switch Commands

Code Applies to Description

01 to 30 Any of first

31 SCC 2020 Accesses th e controller functionality of the SCC 2020 node contr o ller

32 SCC 2020 Reset modem interface by sending the configured modem

40 SCC 2020

The chart in Table 3-8 lists the commands available through the front panel thumbwheels.

30

modules

TAC 2010

Selects a module in the indicated slot, up to slot 30. Thumbwheel switches cannot be used for modules in slots 31-52

(not the T1 CSU portion). For an SCC 2020 in slot 1 of shelf 1, use address 01 to set CSU options

initialization string to the DB-9 SLIP por t Canned configurati o n #1, EQPT=SF/AMI NET=ESF/AMI

Verilink SCC 2020 User Manual

3

-25

Configuration

Code Applies to Description

41 SCC 2020

TAC 2010

42 SCC 2020

TAC 2010

43 SCC 2020

TAC 2010

44 SCC 2020

TAC 2010

45 — Not applica ble (The SCC does not support storing and restoring

46 — Not applica ble (The SCC does not support storing and restoring

47 SCC 2020

TAC 2010

TAC 2130

48 SCC 2020

TAC 2010

TAC 2130

49 SCC 2020

TAC 2010

TAC 2130

Canned configuration #2, EQPT=ESF/AMI NET=ESF/AMI

Canned configurati o n #3, EQPT=SF/AMI NET=ESF/B8ZS

Canned configuration #4, EQPT=SF/B8ZS NET=ESF/B8ZS

Canned configurati on #5, EQPT=ESF/B8ZS NET=ESF/B8ZS

module configurations as the older NCC node controller modules did)

module configurations as the older NCC node controller modules did) Network LBO = 0 dB; Typical value, use when a T1 installed by a local

Bell carrier is terminated in a “smart jack ”, (network termination device) or the first repeater is 2000 to 3000 feet away

Network LBO = 7.5 dB; Attenuates transmit signal by 7.5db,

IF NO SMART JACK IS PRESENT

(repeater, T3 mux, far CSU) is 1000 to 2000 feet aw ay Network LBO = 15 dB; Attenuates transmit signal by 15db,

IF NO SMART JACK IS PRESENT

(repeater, T3 mux, far CSU) is 0 to 1000 feet away

, implies that the first active device

USE ONLY

50 SCC 2020

TAC 2010

51 SCC 2020

TAC 2010

52 SCC 2020

TAC 2010

53 SCC 2020

TAC 2010

54 SCC 2020

TAC 2010

55 SCC 2020

TAC 2010

56 SCC 2020

TAC 2010

DIU 2140

57 SCC 2020

TAC 2010

DIU 2140

Selects DSX-1 Equipment cabl e length of 0-132 ft

Selects DSX-1 Equipment cable length of 133-265 ft

Selects DSX-1 Equipment cable length of 266-398 ft

Selects DSX-1 Equipment cable length of 399-532 ft

Selects DSX-1 Equipment cable length of 533-655 ft

Set data bus to NONE (CSU mode) [default]

Set data bus to A (Mux mode)

Set data bus to B (Mux mode)

3

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Verilink SCC 2020 User Manual

Code Applies to Description

Configuration

58 SCC 2020

TAC 2010

DIU 2140

59 SCC 2020

TAC 2010 TAC 2130

60 SCC 2020

TAC 2010

TAC 2130

61 SCC 2020

TAC 2010

TAC 2130 62 DIU 2140 Use timeslot 24 on the assigned CSU, set all 5 data ports to 9.6 kbit/s 63 DIU 2140 Selects split timing (RX clock ~ TX clock); typical value 64 DIU 2140 Selects single source timin g (RX clock = TX clock); 65 DIU 2140 Sets DTE timing option for all synchronous data ports to ST 66 DIU 2140 Sets DTE timing option for all synchronous data ports to ST 67 DIU 2140 Sets DTE timing option for all synchronous data ports to TT

Set data bus to C (Mux mode)

Send in-band CSU loop-up code to far-end CSU, this should cause the far end CSU to enter a Line Loopback condition

Send framed QRSS to far end

Stop QRSS pattern and send inband CSU loop-down code to far end

68 DIU 2140 Sets RTS to normal operation, for synchronous data ports, data is

69 DIU 2140 Sets RTS to forced on (requires version 1.1 DIU 2140 firmware), data is

80 DIU 2130

TAC 2130

81 TAC 2130

DIU 2130

82 TAC 2130

DIU 2130

83 TAC 2130

DIU 2130

84 TAC 2130

DIU 2130

85 TAC 2130

DIU 2130

86 TAC 2130

DIU 2130

transmitted ONLY if the DTE asserts RTS, (ignored in Async) [default]

sent regardless of actual state of RTS from DTE: this behavior always applies to Async ports

Set Data Port 1 to tail-circuit timing. Note that TAC 2130-T and TAC 2130-S modules do not support tail circuit timing, external timing or TIU 2850 timing

Canned configuration #1 , assigns all 24 timeslots to data port #1

Canned configuration #2, assign s timeslots 1-12 to data port #1 and timeslots 13-24 to data port #2 (data port #2 ignored by TAC 2130)

Canned configuration #3, assigns timeslots 1-8 to data port #1 and timeslots 9-16 to data port #2 (data port #2 ignored by TAC 2130)

Canned configuration #4, assigns timeslots 1-6 to data port #1 and timeslots 7-12 to data port #2 (data port #2 ignored by TAC 2130)

Canned configuration #5assig ns ti meslots 1-4 to data port #1 and timeslots 5-8 to data port #2 (data port #2 ignored by TAC 2130)

Canned configuration #6, assigns timeslots 1-2 to data port #1 and timeslots 3-4 to data port #2 (data port #2 ignored by TAC 2130)

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Configuration

Code Applies to Description

87 TAC 2130

DIU 2130

88 TAC 2130

DIU 2130 DIU 2131

89 TAC 2130

DIU 2130

90 TAC 2130

DIU 2130

91 TAC 2130

DIU 2130 92 DIU 2130 Unassign Port 2 timeslot(s) 99 SCC 2020 Reset SCC password for Craft interface to default condition (no

00 ALL Clear the address command, releases currently selected module. Use

Canned configuration #7, assign s timeslots 1-23 to data port #1 and timeslot 24 to data port #2 (data port #2 ignored by TAC 2130)

Set DTE port(s) clock to TT , data port samples Transmit Data during negative going transition of clock received from DTE (on the pair Terminal Timing i n RS-422, SCTE in V.35 or XTC in RS-232)

Set DTE port(s) clock to inverted ST (ST Data lead during positive going transition of transmit clock signal

Set DTE ports to n × 56 kbit/s (as required for an AMI T1)

Unassign Port 1 timeslot(s)

password)

this command if you change your mind after selecting a module in step two, or if you select the wrong module accidentally, or to practice double-clicking

) data port samples Transmit

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Chapter

4

Performance Menu

Performance Monitoring

Once the SCC 2020 is installed, the performance monitoring routines allow you to monitor the performance of the T1 circuit.

The SCC 2020 maintain s a hist ory o f the T1 circu it perfo rmance for the previous 24 hours and offers the ability to examine various tables.

Performance statistics may be viewed in a Craft interface session, using either a direct connection or Telnet session.

As described by the various technical publications which define ESF (Extended Superframe), the SCC 2020 maintains perfo rmance records in 15-minute intervals. After an SCC 2020 has been operating for 24 hours, there will be 96 of these 15-minute intervals stored in the CSU registers.

Performance Menu Display

Most of the information accessible under the

Monitoring Menu

checking, used to detect errored seconds, is only present on an ESF T1.

Performance Monitoring Menu

The at the SCC 2020

Performance Monitoring Menu

The information and a Reset Registers command to clear all stored information.

Figure 4-1 Performance Monitoring Menu

--- PERFORMANCE MONITORING ---

--- PERFORMANCE MONITORING --- --- PERFORMANCE MONITORING ---

N) 1 hour network

N) 1 hour network N) 1 hour network

E) 24 hour es

E) 24 hour es E) 24 hour es

B) 24 hour bes

B) 24 hour bes B) 24 hour bes

S) 24 hour ses

S) 24 hour ses S) 24 hour ses

U) 24 hour uas

U) 24 hour uas U) 24 hour uas

L) 24 hour lofc

L) 24 hour lofc L) 24 hour lofc

R) reset registers

R) reset registers R) reset registers

X) exit menu

X) exit menu X) exit menu

is only available with an ESF T1. CRC-6 error

is accessed by typi ng P while

Main Menu

.

offers six options to display

Performance

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

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Performance Monitoring

Definitions

The acronyms shown on the

Performance Monitoring Menu

described in Table 4-1 below

Table 4-1 Performance Monitoring Menu Acronyms

Acronym Meaning

ES Errored Second — any second during which one or more bit

BES Bursty Errored Seconds — a second having between 2 and

SES Severely Errored Second — a second with 320 or more CRC-6

UAS Unavailable Second — any second during which an

LOFC Loss Of Frame Count — an accumulated value equal to the

errors have been detected

319 CRC-6 error events Bursty errored seconds are not counted when an SES or UAS is

counted

error events, or one or more OOF (Out Of Frame) events

Unavailable Signal State occurs An Unavailable Signal State condition is declared after ten

consecutive S ES a nd clea rs on ly af ter t en c ons ecuti ve seco nd s which are not Severely Errored Seconds

number of times that a Loss Of Frame has been declared Loss of frame is declared when either LOS (Loss Of Signal) or

OOF (Out Of Frame) is true for two to three seconds LOF is cleared only after 10 seconds with LOS and OOF cl ea r

are

One Hour Network

The One Hour Network function produces screen output which lists a 24-hour summary for each of the parameters described in Table

4-1 above. Also shown are counts for each of the same al arm

conditions for the preceeding hour, in four 15-minute intervals. The One Hour Network display looks like:

Figure 4-2 One Hour Network Report

ONE HOUR PERFORMANCE DATA

ONE HOUR PERFORMANCE DATAONE HOUR PERFORMANCE DATA

4-27-98 14:10:44

4-27-98 14:10:444-27-98 14:10:44 Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020Site Name: Tech Pubs SCC 2020 ELEMENT ID 1, 1

ELEMENT ID 1, 1

ELEMENT ID 1, 1 ELEMENT ID 1, 1 Valid Intervals 96 Seconds in Current Interval 464

Valid Intervals 96 Seconds in Current Interval 464

Valid Intervals 96 Seconds in Current Interval 464Valid Intervals 96 Seconds in Current Interval 464

ES UAS BES SES LOFC

ES UAS BES SES LOFCES UAS BES SES LOFC 0 0 0 0 0 24 Hour Total

0 0 0 0 0 24 Hour Total

0 0 0 0 0 24 Hour Total0 0 0 0 0 24 Hour Total 0 0 0 0 0 Current Interval

0 0 0 0 0 Current Interval

0 0 0 0 0 Current Interval0 0 0 0 0 Current Interval 0 0 0 0 0 Interval 1

0 0 0 0 0 Interval 1

0 0 0 0 0 Interval 10 0 0 0 0 Interval 1 0 0 0 0 0 Interval 2

0 0 0 0 0 Interval 2

0 0 0 0 0 Interval 20 0 0 0 0 Interval 2 0 0 0 0 0 Interval 3

0 0 0 0 0 Interval 3

0 0 0 0 0 Interval 30 0 0 0 0 Interval 3 0 0 0 0 0 Interval 4

0 0 0 0 0 Interval 4

0 0 0 0 0 Interval 40 0 0 0 0 Interval 4

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Verilink SCC 2020 User Manual

Performance Monitoring

24-hour Errored Seconds

The 24-hour Errored Seconds selection on the

Monitoring Menu

produces a screen showing the errored second counts for each o f the l ast 96 fifteen minu te i nt e rvals. Errored seconds are the least serious of t he error conditions tra cked by th e CSU. A typical errored seconds display is shown below in Figure

4-3:

Figure 4-3 24-Hour Errored Seconds

24 HOUR ES PERFORMANCE DATA 4-27-98 14:25:26

24 HOUR ES PERFORMANCE DATA 4-27-98 14:25:2624 HOUR ES PERFORMANCE DATA 4-27-98 14:25:26 Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020Site Name: Tech Pubs SCC 2020 1, 1

1, 1

1, 1 1, 1 Valid Intervals 96 Seconds in Current Interval 627

Valid Intervals 96 Seconds in Current Interval 627

Valid Intervals 96 Seconds in Current Interval 627Valid Intervals 96 Seconds in Current Interval 627 ES in 24 Hours 23 ES in Current Interval 0

ES in 24 Hours 23 ES in Current Interval 0

ES in 24 Hours 23 ES in Current Interval 0ES in 24 Hours 23 ES in Current Interval 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 3: 0 19: 3 35: 0 51: 0 67: 0 83: 0

3: 0 19: 3 35: 0 51: 0 67: 0 83: 0

3: 0 19: 3 35: 0 51: 0 67: 0 83: 0 3: 0 19: 3 35: 0 51: 0 67: 0 83: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 010: 0 26: 0 42: 0 58: 0 74: 0 90: 0 11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 011: 0 27: 0 43: 0 59: 0 75: 0 91: 0 12: 0 28: 0 44: 5 60: 0 76: 0 92: 0

12: 0 28: 0 44: 5 60: 0 76: 0 92: 0

12: 0 28: 0 44: 5 60: 0 76: 0 92: 012: 0 28: 0 44: 5 60: 0 76: 0 92: 0 13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 013: 0 29: 0 45: 0 61: 0 77: 0 93: 0 14: 0 30: 0 46: 0 62: 0 78: 15 94: 0

14: 0 30: 0 46: 0 62: 0 78: 15 94: 0

14: 0 30: 0 46: 0 62: 0 78: 15 94: 014: 0 30: 0 46: 0 62: 0 78: 15 94: 0 15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 015: 0 31: 0 47: 0 63: 0 79: 0 95: 0 16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 016: 0 32: 0 48: 0 64: 0 80: 0 96: 0

Performance

[1,1] NEAR TAC 2010 >

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4

-3

Performance Monitoring

24-Hour Bursty Errored Seconds

Bursty Errored Seconds are more sev e re than errored seconds and may cause some applications to lose sessions or suffer excessive retransmissions.

A typical 24-Hour Bursty Errored Seconds display is shown below in

Figure 4-4:

Figure 4-4 24-Hour Bursty Errored Seconds

24 HOUR BES PERFORMANCE DATA 4-27-98 14:43:46

24 HOUR BES PERFORMANCE DATA 4-27-98 14:43:4624 HOUR BES PERFORMANCE DATA 4-27-98 14:43:46 Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020Site Name: Tech Pubs SCC 2020 1, 1

1, 1

1, 1 1, 1 Valid Intervals 96 Seconds in Current Interval 829

Valid Intervals 96 Seconds in Current Interval 829

Valid Intervals 96 Seconds in Current Interval 829Valid Intervals 96 Seconds in Current Interval 829 BES in 24 Hours 0 BES in Current Interval 0

BES in 24 Hours 0 BES in Current Interval 0

BES in 24 Hours 0 BES in Current Interval 0BES in 24 Hours 0 BES in Current Interval 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 010: 0 26: 0 42: 0 58: 0 74: 0 90: 0 11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 011: 0 27: 0 43: 0 59: 0 75: 0 91: 0 12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 012: 0 28: 0 44: 0 60: 0 76: 0 92: 0 13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 013: 0 29: 0 45: 0 61: 0 77: 0 93: 0 14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 014: 0 30: 0 46: 0 62: 0 78: 0 94: 0 15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 015: 0 31: 0 47: 0 63: 0 79: 0 95: 0 16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 016: 0 32: 0 48: 0 64: 0 80: 0 96: 0

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Performance Monitoring

24-Hour Severely Errored Seconds

Severely Errored Seconds pose a serious threat to the integrity of your data. Since a T1 offers a maximum of 1.536 Mbit/s, an error rate over 320 per second becomes significant. Severely errored seconds may also result from Out Of Frame (OOF) conditions. During an OOF event all user data is lost.

A typical 24-Hour Severely Errored Seconds Report is shown below in Figure 4-5:

Figure 4-5 24-Hour Severely Errored Seconds

24 HOUR SES PERFORMANCE DATA 4-27-98 14:48:46

24 HOUR SES PERFORMANCE DATA 4-27-98 14:48:4624 HOUR SES PERFORMANCE DATA 4-27-98 14:48:46 Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020Site Name: Tech Pubs SCC 2020 1, 1

1, 1

1, 1 1, 1 Valid Intervals 96 Seconds in Current Interval 231

Valid Intervals 96 Seconds in Current Interval 231

Valid Intervals 96 Seconds in Current Interval 231Valid Intervals 96 Seconds in Current Interval 231 SES in 24 Hours 0 SES in Current Interval 0

SES in 24 Hours 0 SES in Current Interval 0

SES in 24 Hours 0 SES in Current Interval 0SES in 24 Hours 0 SES in Current Interval 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 010: 0 26: 0 42: 0 58: 0 74: 0 90: 0 11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 011: 0 27: 0 43: 0 59: 0 75: 0 91: 0 12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 012: 0 28: 0 44: 0 60: 0 76: 0 92: 0 13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 013: 0 29: 0 45: 0 61: 0 77: 0 93: 0 14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 014: 0 30: 0 46: 0 62: 0 78: 0 94: 0 15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 015: 0 31: 0 47: 0 63: 0 79: 0 95: 0 16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 016: 0 32: 0 48: 0 64: 0 80: 0 96: 0

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4

-5

Performance Monitoring

24-Hour Unavailable Seconds

After ten Severely Errored S e conds in a row, the CSU begins to count Unavailable Seconds. As the name suggests, the error rate in this condition is considered to be so high that the T1 circuit should be treated as though it were not available.

Once a CSU begins count ing U navai lab le Sec ond s it will con tinue to do so until ten consecutive seconds pass, all of which are error free or have a lower error rate than a Severely Errored Second.

A typical 24-Hour Unavailable Seconds display is shown below in

Figure 4-6:

Figure 4-6 24-Hour Unavailable Seconds

24 HOUR UAS PERFORMANCE DATA 4-27-98 15:13:03

24 HOUR UAS PERFORMANCE DATA 4-27-98 15:13:0324 HOUR UAS PERFORMANCE DATA 4-27-98 15:13:03 Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020Site Name: Tech Pubs SCC 2020 1, 1

1, 1

1, 1 1, 1 Valid Intervals 96 Seconds in Current Interval 786

Valid Intervals 96 Seconds in Current Interval 786

Valid Intervals 96 Seconds in Current Interval 786Valid Intervals 96 Seconds in Current Interval 786 UAS in 24 Hours 0 UAS in Current Interval 0

UAS in 24 Hours 0 UAS in Current Interval 0

UAS in 24 Hours 0 UAS in Current Interval 0UAS in 24 Hours 0 UAS in Current Interval 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 010: 0 26: 0 42: 0 58: 0 74: 0 90: 0 11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 011: 0 27: 0 43: 0 59: 0 75: 0 91: 0 12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 012: 0 28: 0 44: 0 60: 0 76: 0 92: 0 13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 013: 0 29: 0 45: 0 61: 0 77: 0 93: 0 14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 014: 0 30: 0 46: 0 62: 0 78: 0 94: 0 15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 015: 0 31: 0 47: 0 63: 0 79: 0 95: 0 16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 016: 0 32: 0 48: 0 64: 0 80: 0 96: 0

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Verilink SCC 2020 User Manual

Performance Monitoring

24-Hour Loss of Frame Count

A loss of frame synchronization on a T1 circuit causes a loss of all user data as long as the Out Of Frame (OOF) condition continues.

The 24-Hour Loss Of Frame Count indicates how many seconds, per fifteen minute interval, were during an Out Of Frame condition. These are seconds during which yo u may be certain that no user data passed. Since there are 900 seconds in a fifteen minute p eriod, the value for any one interval will never exceed 900.

A typical 24-Hour LOFC display is shown below in figure:

Figure 4-7 24-Hour Loss Of Frame Count

24 HOUR LOFC PERFORMANCE DATA 4-27-98 15:28:48

24 HOUR LOFC PERFORMANCE DATA 4-27-98 15:28:4824 HOUR LOFC PERFORMANCE DATA 4-27-98 15:28:48 Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020

Site Name: Tech Pubs SCC 2020Site Name: Tech Pubs SCC 2020 1, 1

1, 1

1, 1 1, 1 Valid Intervals 96 Seconds in Current Interval 830

Valid Intervals 96 Seconds in Current Interval 830

Valid Intervals 96 Seconds in Current Interval 830Valid Intervals 96 Seconds in Current Interval 830 LOFC in 24 Hours 0 LOFC in Current Interval 0

LOFC in 24 Hours 0 LOFC in Current Interval 0

LOFC in 24 Hours 0 LOFC in Current Interval 0LOFC in 24 Hours 0 LOFC in Current Interval 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0

1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 1: 0 17: 0 33: 0 49: 0 65: 0 81: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0

2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 2: 0 18: 0 34: 0 50: 0 66: 0 82: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0

3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 3: 0 19: 0 35: 0 51: 0 67: 0 83: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0

4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 4: 0 20: 0 36: 0 52: 0 68: 0 84: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0

5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 5: 0 21: 0 37: 0 53: 0 69: 0 85: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0

6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 6: 0 22: 0 38: 0 54: 0 70: 0 86: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0

7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 7: 0 23: 0 39: 0 55: 0 71: 0 87: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0

8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 8: 0 24: 0 40: 0 56: 0 72: 0 88: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0

9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 9: 0 25: 0 41: 0 57: 0 73: 0 89: 0 10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 0

10: 0 26: 0 42: 0 58: 0 74: 0 90: 010: 0 26: 0 42: 0 58: 0 74: 0 90: 0 11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 0

11: 0 27: 0 43: 0 59: 0 75: 0 91: 011: 0 27: 0 43: 0 59: 0 75: 0 91: 0 12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 0

12: 0 28: 0 44: 0 60: 0 76: 0 92: 012: 0 28: 0 44: 0 60: 0 76: 0 92: 0 13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 0

13: 0 29: 0 45: 0 61: 0 77: 0 93: 013: 0 29: 0 45: 0 61: 0 77: 0 93: 0 14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 0

14: 0 30: 0 46: 0 62: 0 78: 0 94: 014: 0 30: 0 46: 0 62: 0 78: 0 94: 0 15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 0

15: 0 31: 0 47: 0 63: 0 79: 0 95: 015: 0 31: 0 47: 0 63: 0 79: 0 95: 0 16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 0

16: 0 32: 0 48: 0 64: 0 80: 0 96: 016: 0 32: 0 48: 0 64: 0 80: 0 96: 0

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[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

Reset Registers

The Reset Registers command on the

Menu

is used to clear out all of the accumulated information being

Performance Monitoring

held in the ESF registers. All of the values in the displays available from the

Performance Monitoring Menu

are reset to zero, the

number of valid intervals is reset to zero. A typical use of this option would be at the completion of an

installation. If a T1 facility has been serviced and it is believed that any problems have been corrected it may be desirable to reset the registers so that any errors reported are known to be new.

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Performance Monitoring

4

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Verilink SCC 2020 User Manual

Chapter

5

Using Diagnostics

Diagnostics

While installing your SCC 2020, or after it has been placed into service, the Diagnostic routines allow you to troubleshoot or verify the T1 circuit and Verilink equipment. The front panel of the SCC 2020 has three LEDs which give a visual in dication of alarm conditions.

Display elements on the information about possible alar m co nditions as well as offering command options which may be use d to establish an d te r m i na t e loopbacks and test patterns.

A typical way of using the following steps:

1. Establish a loopback somewhere in the circuit path.

Diagnostics Menu

give current

might involve the

Alarm Status

2. Start tra ns mitting a test pat te rn.

3. Observe the test error counter to see if the test pattern is received as it was sent.

a. If no errors are observed, move the point of loopback

further away to test more of the circuit path, or

b. If errors are observed, move the point of loopback closer

to determine the source of the problem.

4. Stop the test pattern, drop all loopbacks, then: a. Place the T1 circuit back into service if all tests passed, or b. Contact the appropriate vendor if a problem was found.

In addition to off e ring the ability to put up and take down loopbacks and test patterns, the information about the current status of the DSX-1 equipment interface and DS-1 network interface.

The top half of the of ASCII characters which represents the operation of the CSU. The equipment interface is shown on the left and the network interface is shown on the right. In the area to the left and right of the line drawing of a framer, status information is represented by words displayed in upper case characters.

Diagnostics Menu

includes a drawing made up

also offers

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5

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Diagnostics

Diagnostics Menu

A sample of the In this example, the word

(left hand) and network (right hand) sides of the display. When the words

Figure 5-1 Diagnostics Menu

CSU DIAGNOSTIC -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

CSU DIAGNOSTIC -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --CSU DIAGNOSTIC -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

|-----------------------|

|-----------------------| |-----------------------| | |

| |

| | | |

-------<< eq <<-------|----------|f|----------|-------<< net <<-------

-------<< eq <<-------|----------|f|----------|-------<< net <<--------------<< eq <<-------|----------|f|----------|-------<< net <<------ | |r| | PULSES

| |r| | PULSES

| |r| | PULSES | |r| | PULSES | |a| |

| |a| |

| |a| | | |a| | | |m| |

| |m| |

| |m| | | |m| | PULSES | |e| |

PULSES | |e| |

PULSES | |e| | PULSES | |e| |

------->> eq >>-------|----------|r|----------|------->> net >>-------

------->> eq >>-------|----------|r|----------|------->> net >>-------------->> eq >>-------|----------|r|----------|------->> net >>------ | |

| |

| | | | |-----------------------|

|-----------------------|

|-----------------------| |-----------------------| X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC)

X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC)

X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC) X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC)

__eq loops__ __err counter__ __net signals__ __net loops__

__eq loops__ __err counter__ __net signals__ __net loops__ __eq loops__ __err counter__ __net signals__ __net loops__ R) repeater A) show cntr 1) qrss L) line

R) repeater A) show cntr 1) qrss L) line

R) repeater A) show cntr 1) qrss L) line R) repeater A) show cntr 1) qrss L) line E) equip B) clear cntr 2) 3 in 24 P) payload

E) equip B) clear cntr 2) 3 in 24 P) payload

E) equip B) clear cntr 2) 3 in 24 P) payload E) equip B) clear cntr 2) 3 in 24 P) payload

3) 1 in 8 U) inband up

3) 1 in 8 U) inband up 3) 1 in 8 U) inband up N) end tests 4) all 1 D) inband down

N) end tests 4) all 1 D) inband down

N) end tests 4) all 1 D) inband down N) end tests 4) all 1 D) inband down [1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >

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PULSES

Diagnostics Menu

PULSES

is shown below in Figure 5-1.

appears on both the equipment

appears alone, that interface has no alarms.

Since a T1 circuit operates by sending pulses to represen t a logical “one”, the indication

PULSES

means that the T1 CS U portion of this SCC 2020 in the example above does see pulses on both the equipment (left side) and network (right side) inter faces. Therefore, of all the messages which might appear on this menu in upper case characters,

PULSES

is the only message which does not represent an alarm condition. Pulses are the logical opposite of a Loss Of Signal (LOS) condition.

Figure 5-2 below shows the result of disconnecting the T1 circuit

from an SCC 2020 module. The word

PULSES

no longer appears on the right hand side where network status is indicated. Instead, a number of alarm conditi ons are rep ort ed inc ludi ng

LOSS, CRC ERRORS

NOTE:

Whenever a T1 CSU reports Signal Loss, it will report other

SIGNAL LOSS

and

.

ALARM, FRAME

alarms as well. The other alarms are caused by the signal loss condition. Ignore the other ala rms and find the cause of the Signal Loss to restore the T1 to service.

5

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Verilink SCC 2020 User Manual

Figure 5-2 Diagnostics Menu

CSU DIAGNOSTIC -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

CSU DIAGNOSTIC -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --CSU DIAGNOSTIC -- FW Rev 1.6 HW Fab 0.8 Type TAC 2010 --

|-----------------------| ALARM

|-----------------------| ALARM |-----------------------| ALARM | | FRAME LOSS

| | FRAME LOSS

| | FRAME LOSS | | FRAME LOSS

-------<< eq <<-------|----------|f|----------|-------<< net <<-------

-------<< eq <<-------|----------|f|----------|-------<< net <<--------------<< eq <<-------|----------|f|----------|-------<< net <<------ | |r| | SIGNAL LOSS

| |r| | SIGNAL LOSS

| |r| | SIGNAL LOSS | |r| | SIGNAL LOSS | |a| |

| |a| |

| |a| | | |a| | | |m| | CRC ERRORS

| |m| | CRC ERRORS

| |m| | CRC ERRORS | |m| | CRC ERRORS PULSES | |e| |

PULSES | |e| |

PULSES | |e| | PULSES | |e| |

------->> eq >>-------|----------|r|----------|------->> net >>-------

------->> eq >>-------|----------|r|----------|------->> net >>-------------->> eq >>-------|----------|r|----------|------->> net >>------ | |

| |

| | | | LOW DENSITY |-----------------------|

LOW DENSITY |-----------------------|

LOW DENSITY |-----------------------| LOW DENSITY |-----------------------| X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC)

X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC)

X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC) X) exit menu Y) enable loops Z) reset alarm T) test time (15 SEC)

__eq loops__ __err counter__ __net signals__ __net loops__

__eq loops__ __err counter__ __net signals__ __net loops__ __eq loops__ __err counter__ __net signals__ __net loops__ R) repeater A) show cntr 1) qrss L) line

R) repeater A) show cntr 1) qrss L) line

R) repeater A) show cntr 1) qrss L) line R) repeater A) show cntr 1) qrss L) line E) equip B) clear cntr 2) 3 in 24 P) payload

E) equip B) clear cntr 2) 3 in 24 P) payload

E) equip B) clear cntr 2) 3 in 24 P) payload E) equip B) clear cntr 2) 3 in 24 P) payload

3) 1 in 8 U) inband up

3) 1 in 8 U) inband up 3) 1 in 8 U) inband up N) end tests 4) all 1 D) inband down

N) end tests 4) all 1 D) inband down

N) end tests 4) all 1 D) inband down N) end tests 4) all 1 D) inband down [1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >

[1,1] NEAR TAC 2010 >[1,1] NEAR TAC 2010 >

Diagnostics

Status Messages

The status messages which may appear on the Diagnostics Menu are listed in Table 5-1 below:

Table 5-1 Diagnostic Menu Status Messages

Message Meaning

ALARM Yellow Al ar m ( R AI) Th e CSU is receiving a R emote Alarm Indication Si gn al on the port.

FRAME LOSS Out Of Frame (OOF) The CSU does not detect a valid framed signal on the port. If

SIGNAL LOSS Loss Of Signal (LOS) The CSU does not detect any pulses on the port, this is the worst

CRC ERRORS Cyclic Redundancy Check errors (CRC-6), the CSU detects errors using the CRC-6

LOW DENSITY The T1 signal on the port does not meet the required average ones density of 12.5%

BPV The CSU is detecting Bipolar Vio l ati ons on th e p ort, two o r mo re pul s es in a row were

EXT CLK LOSS The CSU is configured to use an external clock signal and that signal is not detected

PULSES Not an alarm condition, the CSU does see valid pulses on the port. When a CSU is in

This signal is sent by a dev ice in a red alarm condition, such as AIS, LOS or LOF

pulses are also present, may indicate receipt of unframed all ones, Alarm Indication Signal (AIS), which is often used as a Keep Alive signal on T1 circuits

possible alarm condition on a T1 port, ignore other alarms and resolve the cause of the LOS first

feature of ESF framing, applies only to T1 circuits or equipment using ESF framing

of the same polarity, violating the Alternating Mark Inversion requirement

Mux mode, PULSES should always be displayed on the equipment side of the menu. In Mux mode only synchronous serial interfaces are used and the CSU does not expect to see any particular framed pattern of pulses

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Diagnostics

Diagnostic Commands

Table 5-2 Diagnostic Commands

Menu Option Description Instructions

X) exit menu Exits to menu above Returns to the SCC 2020 Y) enable loops Determines whether

CSU will res pond to received standard CSU loop-up codes

Z) reset alarm Clears alarm history

for the current 15 minute interval

T) test time Sets the length of time

tests and loopbacks will be allowed to run

FOREVER is suggested by Verilink

R) repeater Establishes a repeater

loopback Useful for testing local

CSU hardware

There are seventeen command options available on the SCC 2020 diagnostics menu. Table 5-2 lists all of these commands:

Main Menu

Normally this selection should be enabled In a telephone carrier central office environment this option

might be disabled Extinguishes red LED alarm conditions on front panel of the

SCC 2020 CSU after installation or after resolving a service problem

ENTER INTERVAL (DEFAULT, x SEC, x MIN, x HR, FOREVER): Type FOREVER or type a numeric value followed by SEC for

seconds, MIN for minutes, HR for hours example

The CSU loops data it is about to transmit back to the receive circuitry, local equipment should see its own signal

This test is functionally equivalent to placing a T1 loopback plug into the network port of the CSU

45MIN

E) equip Establishes an

A) show cntr Displays test error

B) clear cntr Resets test erro r

N) end tests Ends tests and

1) qrss Starts QRSS test CSU transmits a Quasi-Random test pattern while monitoring

2) 3 in 24 Starts 3 in 24 test CSU transmits a 3 in 24 test pattern while monitoring the

equipment loopback

counter, increments for each error detected

counter

LOCAL

loopbacks

The local DSX-1 equ ipment port is looped bac k directly to the local equipment, useful for verifying cable connections

Used to monitor a test in progress, when the CSU transmits a test pattern, it expects to receive the same test pattern unaltered, either from a loopback or a compatible test signal source

Used to reset the test error counter to zero after a test or before a new test

Used to end any running test patterns as well as terminating any loopbacks in the local CSU

the receive pair for the same signal to be returned This test is widely supported by telepho ne carrie r test

facilities This test pattern is valid for all T1 circuit types

receive pair for the same signal to be returned 3 in 24 guarantees that of any 24 bits sent, at least 3 will be

ones, thus strings of twenty one contiguous zeroes are possible

Because this pattern may have strings of up to 21 zeroes in a row, it may fail on some perfectly good AMI T1 cir cuits as equipment in the circuit enforces ones density

5

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Verilink SCC 2020 User Manual

Menu Option Description Instructions

Diagnostics

3) 1 in 8 Starts 1 in 8 test CSU transmits a 1 in 8 pattern, which guarantees one bit of

4) all 1 Starts all ones pattern Use of this pattern is

suggested whenever any T1 circuit is tested

L) line Initiates a line

loopback

P) payload Initiate s a payload

loopback

U) inband up Sends a standard CSU

loop-up code toward the far end CSU

D) inband down Sends a standard CSU

loop-down code to the far end CSU

every 8 will be a one, while monitoring the receive pair for the same signal to be returned

This test pattern is valid for all T1 circuit types The CSU transmits a framed pattern of all ones and monitors

receive data for the same pattern Because it produces maximum current levels, this test is

especially good at finding some problems like bad repeater cards or resistive punchdown connections

All ones is a valid test on all T1 circuits Line loopback faces the T1 circuit, all data received from the

T1 circuit is sent back to the T1 circuit This is the same loopback which o ccu rs when a CSU rece ive s

a loop-up code from the network Payload loopback faces the T1 circuit like the line loopback

A payload loopback passes through more of the CSU circuitry while the line loopback occurs closer to the network port

Under normal circumstances send in g th e lin e loop-up code will cause the far end CSU to enter a line loopback state

Under normal circumstances sendin g th e lin e loop-down code will ter minate a line loopback state in the far end CSU

Verilink SCC 2020 User Manual

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Diagnostics

Front Panel LEDs

This section describes the function of the SCC 2020 LED indicators.

EQPT LED

The EQPT (equipment) LED is a tri-state indicator with six states, as follows:

Table 5-3 Equipment LED States

State Meaning

Solid Green The signal being transmitted by the local DSX-1 equipment i s

Solid Yellow The SCC 2020 is in a loop which faces the Equipment port

Solid Red A continuous error condition exists (Loss Of Signal, Loss Of

Flashing

Red to Off

Flashing

Red to

Yellow Not Lit The SCC has no po w er o r, if o ther LEDS are lit, the SCC is

OK or the SCC 2020 card is configured for Mux mode (in Mux mode the EQPT LED is

(Repeater Loopback or Equipment Loopback)

Frame, Alarm Indication Signal, Remote Alarm Indication Signal) in the signal (o r lack of a signal) being transmitted by the local DSX-1 equipment

Bipolar Violations, CRC-6 Errors, or a low density condition have been detected in the local DSX-1 equipment transmit signal

The SCC is looped toward the equipment (RLB, ELB) and errors are detected in the data stream being transmitted by the equipment

defective

always

green)

NOTE:

“Solid Red” events take priority over “Flashing Red” events, except when a loopback is enabled.

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Verilink SCC 2020 User Manual

Diagnostics

STAT LED

The STAT (CSU status) LED is a three-color indicator with six possible states, as follows:

Table 5-4 Stat LED States

State Meaning

Solid Green This is invalid for the Stat LED

Solid

Yellow

Solid Red Some alarm condition has occurred within the last fifteen

Flashing

Red to Off

Flashing

Red to Yellow

Not Lit No alarms have occurred within the last fifteen minutes, this is

A test is in progress and no errors are detected (a test signal is currently being transmitted to the circuit by the CSU and the received pattern matches the transmitted pattern)

minutes on either the Network or Equipment interface Power up self test has failed, verify that the rear CIM module is

of a correct type (CIM 2022 or CIM 2052) Errors have been received during a test (a test signal is being

transmitted and the pattern received does not match the pattern which was sent)

the normal state for the Stat LE D

NET LED

The NET (network) LED is a tri-color indicator with six states, as follows:

Table 5-5 Net LED States

State Meaning

Solid Green A normal signal is being received from the network (all OK)

Solid

Yellow

Solid Red Continuous errors are being re ce ived on the netw ork inte rfa c e

Flashing

Red to

Green

Flashing

Red to Yellow

Not Lit The SCC has no power or, if other LEDS are lit, the SCC is

The SCC is looped toward the network via a line loopback (LLB) or payload loopback (PLB) and no errors are being received from the network

(e.g., LOS, LOF, RAI, AIS) Bipolar violations or CRC-6 errors are being received on the

network interface

The CSU is looped toward the network and errors are being received (BPV or CRC-6)

defective

Verilink SCC 2020 User Manual

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Diagnostics

Test Procedures

Testing may generally be divided into two categories, tests which are conducted to verify an installation where no known problems exist; and tests which result from an effort to troubleshoot a problem which is known to exist.

Two procedures are described below. First, in the section Verifying

A T1, a method is described to test a T1 circuit when it is expected

that no trouble will be found. Then, in the section Troubleshooting, a suggested method for finding T1 problems is detailed.

Verifying A T1

Far End Loop

For this procedure a pattern will be sent from a local CSU, through the entire transmit path of the T1 circuit, to a loopback in a far end CSU, then back through the other direction of the T1 circ uit.

First a loop-up code is sent, then a test pattern is transmitt e d. The data received from the T 1 circuit will be compar ed to the data

which was transmitted. If the data received is identical to the data which was transmitted, the T1 is good and may be placed into service.

To begin the verification, use the

Diagnostics Men u.

This causes the local CSU to transmit a loop-up

Inband Up

command on the

code in the direction of the far end CSU

Figure 5-3 Sending Loop-up Code.

Loop-up code

Local SCC 2020

Far CSU

If the loop-up code reaches the far CSU and it is optioned to respond to loop-up codes, then the far CSU enters a line loop condition. Now the local CSU receives whatever it is sending.

Sending A Pattern

5

-8

NOTE:

Whenever the Inband Up command is used to send a loop-up code to a far end CSU, the Inband Down command must be used later to send the loop-down code. Otherwise the far end CSU will be left in a looped conditio n.

Begin transmitting a test pattern by using the

qrss

command.

Verify that the pattern received matches the pattern being transmitted by using the

Verilink SCC 2020 User Manual

show cntr

command.

Diagnostics

Figure 5-4 Sending And Receiving Pattern

Test pattern sent

Local SCC 2020 Sends pattern Checks pattern

If the QRSS pattern is receive d with no errors, the Test Error Counter will not increment.

If the Test Error Counter does increment, one of the following applies:

•

The far end CSU never went into a loopback and therefore the test pattern being transmitted is not being received at all. This would cause the Test Error Counter t o increment at a rapid and steady rate.

•

The far end CSU did go into a loopback, but the pattern received at the local SCC 2020 does not match the pattern transmitted. In this case the Test Error Counter might increment in uneven amounts at virtually any rate.

Test pattern received

Far CSU

(in Line Loop)

Results

Test Failures

If the test passes, consider doing the same test with a different pattern. Some patterns will fail on a T1 which passes other test patterns. See Table 5-2 for details on the various patterns.

If the test fails consider one of these alternatives:

•

Use a loopback closer to the local CSU. The telephone carrier may be able to put up loopbacks at various locations along the path of the T1 circuit . Start far away and work your way back to the local CSU.

•

If it appears that the local CSU is defective try using a Repeater loopback. Send a test pattern while the local CSU is in Repeater loopback, the test pattern never leaves the CSU because it is receiving what it is sending. If this test passes the CSU is probably OK.

•

If a problem is identified but not resolved by this procedure, go on to the next section, Troubleshooting.

Verilink SCC 2020 User Manual

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Diagnostics

Troubleshooting

Repeater Loopback

When it is known that a problem exists in a T1 network application, a different approach is suggested. In the verification procedure above the initial test passed data through the entire T1 circuit, including both local and far end CSUs. This was done because of the expectation that no trouble would be found.

With trouble known to exist, begin by establishing what is good. Start with a repeater loopback test in the local CSU.

The repeater loopback test takes the transmit data just as it is about to leave the network po rt of the CSU and feeds it directly into the receive circuitry of the CSU. If the CSU is transmitting bad data, it will now receive bad data and the problem will be located (the CSU). If the CSU is transmitting good data b ut the receive circuitry is defective, the signal received will fail and the CSU will declare an alarm.

Use the R command on the loopback. A warning message appears:

Service Affecting, Are you sure ? (Y/N)

Service Affecting, Are you sure ? (Y/N)Service Affecting, Are you sure ? (Y/N)

Press y because you are sure. During a repeater loopback test th e NET LED on the CSU should be green and the EQPT LED should be amber. The STAT LED will usually turn red because of a transient bit error condition which occurs at the instant the test begins. Ignore the STAT LED when conducting loopback tests on a CSU.

Diagnostics Menu

to initiate a repeater

Tips

If the EQPT LED blin ks am be r to re d du ring a repeater lo o p ba ck , errors are being detected in the DSX-1 data presented by the local equipment. Verify cabling and option compatability.

If the NET LED is not green dur ing a repeater loopback te st, please contact Verilink Technical Support for assistance.

If the repeater loopback test passes, your CSU is not defective. For troubleshooting tips related to non-CSU problems, see Table

5-6 below:

5

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Verilink SCC 2020 User Manual

Table 5-6 Troubleshooting Tips

Trouble Suggestion

Signal loss — verify that a T1 circuit is connected to the network port

— verify that a proper cabl e is used, T1 circuits uti lize pins 1, 2,4 and 5 when presented in an RJ-45 connector

— use a straight through cable (1 to 1, 2 to 2, etc.) on the network side of the CSU, use a crossover cable on the DSX-1 equip men t side

— the smart jack (network termination device) may be in a loopback

Frame loss — in a new installation, T1 circuits are often patched out at a carrier’s DACS

or switch until completely turned up, in this case a pattern of unframed all ones (AIS) is kept on the T1 as a keep-alive signal, contact the carrier and request that they “normal up” the circuit

— the CSU must be optioned for the same type of framing as the T1 carrier is providing, framing can not be changed arbitrarily by the user, contact the carrier and verify the type of framing used on the T1

Diagnostics

CRC errors

and

BPVs

reported on a ne w

installation

CRC errors — ESF T1 circuits offer CRC-6 error checking as a means of detecting

— when a T1 pres ents symptoms of CRC errors a nd BPVs, with no other alarms, it often is traced to problems with wiring inside the customer premise

— when the smar t jack is a considerable distance from the CSU (over 50 feet), there is the risk that the high level (hot) signals in the transmit pair will induce echo into the lower level (long) si gnals in the r eceive pair, this condition is called cross talk and is a

— as telephone carriers move toward a poli cy of hous i ng al l sma rt ja cks in one location within commercial buildings, crosstalk related complaints are becoming more common

— to prevent crosstalk related issues the transmit pair and the receive pair must be isolated from each other

— the recommended cable for T1 uses individually shielded, twisted pairs; each pair has shielding around it, th e ca ble therefore has two shields inside it, one for each pair

— if shielded twisted pair ca ble is not avail able, try to route the transmit pair and the receive pair in different cables as they traverse the building

— if the transmit and receive pairs must be routed through a multi-pair cable, such as the 25 pair or 50 pair cable s found in large office buildings, select pairs which are not near each other in the cable

— many smart jacks offer an option “regeneration”, this causes the smart jack to increase the amplitude of the signal received from the network before handing it off to the CSU, try to get the carrier to turn on this option

changes in data which occur on the T1 circuit — if CRC errors are reported, the errors are occurring at some point

between the two CSUs, verify house as indicated above — contact the carrier and request they monitor the circuit, carriers can

monitor a T1 circuit for CRC errors without disrupting user data

leading cause of T1 proble ms

Verilink SCC 2020 User Manual

5

-11

Diagnostics

Trouble Suggestion

Alarm — when a Verilink AS 2000 CSU reports “ALA RM” in the Craft interface, it is

BPV — a bipolar violation is a sequence of two or more consecutive pulses of the

CSU reports no errors

but

DTE reports errors

receiving a yell o w ala rm (R AIS) on that port — T1 devices send a yellow alarm to alert the far end device wh en they ar e

in a red alarm conditio n such as: Loss Of Signal(L OS), Loss Of Frame(LOF), or Alarm Indication Signal(AIS - received all ones keep-alive)

— to resolve a problem with received yellow alarms, find the trouble in the transmit path of the CSU which is receiving the yellow alarm

same polarity — if a T1 is designed to support B8ZS, but some portion of the facility is

configured for AMI in error, the AMI portion of the T1 may attempt to “fix” the intentional bipolar violations used to represent 8 or more zeroes on a B8ZS T1

— this may manifest as BPVs or BPVs with CRC-6 errors — to verify that a T1 which is intended to be B8ZS is actually configured

properly, test the facility with a pattern of all zeroes — in some data applications us in g D SU fun ctio ns, a con dition is rep orte d in

which the CSU does not report errors, but the customer Data Terminal Equipment (DTE) does report errors

— this usually results fr om tra ns mit da ta samp li ng e rro r s at a DSU interface at the opposite end of the circuit from the DTE reporting the errors

— if a CSU/DSU samples a zero when the DTE actually presented a one, the transmitting CSU creates CRC checksum data based on the improperly sampled bit(s), the data does not change on the T1 facility, and the receiving CSU detects no error

Loopback Plug

— these types of errors are caused by a broken phase relationship between the transmit clock provided by the DSU and the transmit data provided by the DTE

— if errors of this type are reported, try changing th e ST vs I NV-ST selection for DSU clocking in the DSU at the

— for more information on DTE clocking issues, see the

Manual

opposite end

of the circuit

DIU 2130 User

For a completely reliable test of a CSU, make a T1 loopback plug and plug it in to the network port. The CSU will now receive the signals it is sending.

If the CSU is sending a defective signal, it will receive a defective signal and declare an alarm. If the receive circui try is defective, such that it cannot decode a good signal, it will be unable to decode the signal it is transmitting and will declare an alarm. Thus, if a T1 CSU does not declare any alarms wi th a loo pback plu g in li eu of the T1 circuit, the CSU is not defective. This does not rely on any tests built in to the product, thereby producing a higher confidence level in the results of the test.

5

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Verilink SCC 2020 User Manual

Diagnostics

With a loopback plug in the n etwor k port , any customer equipment connected to the SCC 2020 (or a data port of any DIU module assigned to the CSU) should see a loopback condition. If the customer equipment is cap a ble of reporting errors, it sho uld indicate that no errors are b e i ng received.

A T1 loopback plug can be made by taking a male RJ-45 connector and placing two short jumper wires where a cable would normally go. One jumper is placed from pin one to pin five, the other jumper connects pin two to pin four. See Figure 5-5 for a drawing of a T1 loopback plug.

NOTE:

When using a T1 loopback plug it may be necessary to temporarily change the timing selection in the CSU. If the CSU is set to recover network clock it will be trying to recover a clock it is trying to recover, the clock frequency will drift. For this test, set the CSU clock source to Internal.

Verilink SCC 2020 User Manual

5

-13

Diagnostics

Figure 5-5 T1 Loopback Plug

12345678

5

-14

1

2

4

5

Verilink SCC 2020 User Manual

Index

Numerics

1 in 8 test

1.544 MHz clock 24 Hour Bursty Errored Seconds 24 hour Errored Seconds 24 Hour Loss Of Frame Count 24 Hour Severel y Errored Seconds 24 Hour Unavailable Seconds 3 in 24 test 458-102119-008 62411 64K per DS0 96 fifteen minute intervals

3-7

5-5

5-4

3-6

3-8

3-2

4-3

4-6

4-7

A

A, D&I NET AAUI-14 Access System 2000 ALARM Alarm reporting Alarm Status Alarm threshold alternative Craft cable AMI or B8ZS Answer Answer Command Answer Inac tive Timeout APS 2000 ASCII AT&T 54016 auto-answer string Automatic Protection Switch

1-2

3-12

5-3

3-15

1-2

3-10

3-6

5-1

3-7

3-9

3-7

3-15

1-1

3-2

3-15

1-2

B

B8ZS

3-7

balanced clock signal bantam jacks BES

4-2

boot

3-13

busy to a PBX

1-3

3-10

3-8

C

3-4

Cable length option canned config Canned configuration CIM

1-3

CIM 2022 CIM 2052 CIMs Class C address clear cntr community string - read community string - write Configuration configuration Connecting Terminal craft

1-5

2-1

1-5 1-5

5-4

3-1

3-4

3-8

3-12

3-7

2-1

3-8

3-13

4-4

4-5

Craft Cable Craft Interface CRC ERRORS CRC-6 error checking crosstalk CSU loops CSU Mode CSU mode

5-11

5-4 3-9

3-8

3-2

5-3

3-1

5-11

D

D&I NET data bus A data bus B data bus C date DB-9 Craft Cable density enforcement derives transmit clock Diagnostic Commands Diagnostics Diagnostics Menu dialing out to trap host Dial-Out Dial-Out Command Dial-Out connect retries Dial-Out Inactive timeout Dial-Out Number distance DIU 2131 diu bus diu clock DIX download

Drop And Insert Mode Drop and Insert mode DTE reports errors

3-8

3-11

3-15

3-7

1-1

3-8

3-12

binary 3-20 element download 3-13 Firmware upgrades 3-18 FTP file transfer 3-18 FTP server 3-18 version 1.69C 3-19

5-1

3-2

5-2

3-15

5-12

3-7

3-8

3-10 3-8

E

ejector enable loops end tests EQPT LED equipment loopback ES Establish a loopback Ethernet Configuration Ethernet connector Ethernet IP address Ethernet tr ansceiver Ethernet Type Ethernet/DIX EXT 422

4-2

1-4

3-8

5-4

3-8

5-4

3-12

5-4 5-1

3-12

5-4

3-15

3-12

Verilink SCC 2020 User Manual

Index-1

EXT CLK LOSS EXT TTL external cloc k

3-8

5-3

3-8

F

far element Far End Loop far end polling Far-End Main Menu Far-End Management FDL

3-9

flash bank to boot from flash download FOREVER format FRAME LOSS framed pattern of all ones framing frequency will drift Front Panel Front Panel LEDs

3-6

5-4

3-4

1-4

5-3

5-8

3-9

3-13

5-6

3-17

5-13

3-16

3-13

5-5

G

Gateway IP address

3-12

H

Hangup host configuration for Ethernet

3-15

I

IDCSU

1-2

idle code inband down inband up INT clock internal oscillator

3-7

3-8

5-5

3-8

3-12

Mode

3-8

Modem Config uration Modem Configuration Commands Modem Configuration Menu Mux Mode Mux mode

3-9 3-6, 3-8

3-12

3-13

N

NCM

1-1

near element network provides a clock network termination device node

3-4

Node Administration Node Administration Menu node id

3-11

3-4

3-10

3-8

3-7

3-11

O

One Hour Network ONE HOUR PERFORMANCE DATA

4-2

P

password prompt Payload loopback Performance Response Messages phase relationship Phone number to call poll far end privileged password prm

3-9

pSH+> PULSES

3-2

5-3

3-9

3-2

5-5

5-12

3-13

3-15

Q

QRSS test Quick Set-Up

5-4

2-1

4-2

3-15

3-9

J

Jitter Buffer

3-6

K

keep alive

3-7

L

lbO

3-7

least serious LED

blinks amber to red 5-10 EQPT LED 5-6 NET LED 5-7 STAT LED 5-7

Line build out Line loopback LOFC

4-2

log off Logging On Login

2-1

Loopback Plug loop-down code loop-up code loss of all us er data Loss Of Frame Count LOW DENSITY ls -l

3-20

3-4

3-2

4-3

5-5

3-7

5-5

5-12

5-3

5-5

4-7

4-2

M

Main Menu Main Menu Commands

2-2

3-4

R

Rebooting an SCC 2020 regenerate CRC regeneration repeater Repeater Loopback reset alarm reset com ports Reset Registers reset the test error counter router

3-12

5-4

5-11

3-6

3-13

4-7

5-10

3-11

S

SCC 2130 select D&I DS0s Sending A Pattern Sending Loop-up Code Sendto

new socket failed 3-11

SES Set default commands shelf/slot shielded twisted pairs show cntr SIGNAL LOSS Signal Loss site name Slip Configuration SLIP Peer address smart jack SNMP SNMP community string

4-2

1-1

3-4

5-4

3-12

3-7

5-2

5-3

3-10

3-12

5-8

3-12

5-8

3-15

5-11

3-13

5-4

Index-2

Verilink SCC 2020 User Manual

SNMP managers ST vs INV-ST Status Messages Subnet Mask

5-12

3-12

3-13

5-3

T

T1 CSU T1 framing T1 loopback plug T1.403 TAC 2010 TAC 2130 TCP/IP Telnet Terminal Terminal Setup Test Error Counter test error counter test fails test passes test time THRU time Tips TIU 2850 Transcode Yellow Alarms Transmit Clock trap host ip address trap hosts Troubleshooting Troubleshooting Tips

3-8

3-11

5-10

3-4

3-7

1-2

3-6

1-2, 2-1 1-2

2-1

5-9

5-4

3-8

3-13

3-1

3-8

5-12

5-4

5-10

5-9

3-13

5-11

3-6

U

UAS

4-2

Unavailable Sec o n ds UNIX commands unprivileged password

3-2

V

Verifying A T1 view alarm buffe r

5-8

3-4

Y

yellow alar m s YOUR PASSWORD?

3-6

3-2

4-6

3-13

Verilink SCC 2020 User Manual

Index-3

Index-4

Verilink SCC 2020 User Manual

October 1999 P/N 880-503268-001-B1

VERILINK CORPORATION 127 JETPLEX CIRCLE, MADISON, ALABAMA 35758 TEL: (800) 837-4546

Verilink SCC 2020 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Scope

Overview

Related Verilink Documents

Features

Other Features

Types of SCC Node Controllers

Compatible Modules

Components

Front and Back Modules

SCC Front Panel

Thumbwheel Switches

CIMs for SCC 2020

Connect to Craft Port

Quick Set-Up

Login

CSU Configuration

Configuring the DIU 2130

Preliminaries

Configuration

Using the Craft Interface

Verilink SCC Craft Port Terminal Setup

Logging On

The Configuration Menu

Configuration Menu Commands

Mode

Node Administration

Node Administration Menu

Modem Configuration

Far-End Management

Requirements

Exceptions

Firmware Upgrade Procedures

Upgrading SCC Modules

Downloading Version 1.69C to Flashbank A

Upgrading Flashbank B

Element Download

Thumbwheel Switches

Thumbwheel Procedure

Thumbwheel Commands

Performance Menu

Performance Monitoring

Performance Menu Display

One Hour Network

24-hour Errored Seconds

24-Hour Bursty Errored Seconds

24-Hour Severely Errored Seconds

24-Hour Unavailable Seconds

24-Hour Loss of Frame Count

Reset Registers

Using Diagnostics

Diagnostics

Alarm Status

Diagnostics Menu

Status Messages

Diagnostic Commands

Front Panel LEDs

EQPT LED

STAT LED

NET LED

Test Procedures

Verifying A T1

Troubleshooting

Tips

Index