Verilink DCSU 2911 User Manual

September 1999 P/N 880-502647-001-C1

DCSU

2911

1

NET

2

LOCAL

1

CPE

2

SYS

PRI

MANAGEMENT

EXT

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 DCSU 29 11 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 by 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 DCSU 29 11 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 elektrische Pol, versehen 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 DCSU 29 11 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 David Gardner. Contributing writers and editors: David Fradelis, Marie Metivier, Steve Rider, Barbara Termaat.

Verilink DCSU 29 11 User Manual

v

vi

Verilink DCSU 29 11 User Manual

DCSU 2911 Dual Channel Service Unit

The DCSU 2911 is an AS2 000 app lica tio n mod ule t hat prov id es two network ports—E1 or T1, depending on which connector interface module (CIM) is used. The E1 configuration supports either 75 BNC or 120 RJ-48 connectors. This application module can be managed using the Craft Interface directly, through the NCM 2000 controller module, or with the optiona l Node Manager software.

Application

The DCSU 2911 provides two complete T1 or E1 CSUs. The following diagram shows how the DCSU 2911 is applied in a typical network application.

Figure 1-1 DCSU 2911 Application

Ω

RJ-48 connectors. The T1 configuration supports 100Ω

User-supplied computer running Node Manager or Craft Interface

PBX or Router

CPE

E1/DSX-1 E1/DSX-1

2 9 1 1

System Components

Hardware components of the DCSU 2911 include:

AS2000 Multi-line shelf

Network Lines

T1/E1 T1/E1

•

DCSU front module

•

Connector interface modules (CIMs)

Network Carriers

Network

Lines

AS2000 Multi-line shelf

2 9 1 1

• CIM 29003 (T1 CIM)

• CIM 29001LP, 29002LP (E1 CIMs)

•

System cables (Craft Cable P/N 458-501788-008)

E1/DSX-1 E1/DSX-1

PBX or Router

CPE

Verilink DCSU 2911 User Manual

1-1

DCSU 2911 Dual Channel Service Unit

DCSU 2911 Front

Figure 1-2 shows the DCSU 2911 front pan e l .

Module

Figure 1-2 DCSU 2911 Front Panel

ACP Management Communications port to extend bus to another shelf, RJ-45

Primary ACP Management port for direct connection to PC running Node Manager, RJ-45

RJ-11 Craft interface port

DCSU

2911

Net Port Status LEDs

LEDs

The DCSU front panel’s System LED (SYS) is green when the module has passed the power-up self-test.

The panel also contains four status LEDs:

1

2

NET

LOCAL

CPE Port Status LEDs

Ejector Handles

1

CPE

2

SYS

PRI MANAGEMENT

System LED

EXT

Management Ports

•

Two for network port status (T1 or E1)

•

Two for customer provided equipment (CPE) port status

Chapter 4 of this manual defines the LEDs and alarms.

Three front panel management ports are provided:

•

Local—RJ-11 (6-pin, RS-232-compliant) Craft interfa ce for connecting an ASCII terminal, a PC running a terminal emulator, or a PC running the Node Manager Craft Port Access window

•

PRI—RJ-45 (8-pin, RS-232-compliant) Node Manager interface connection to the PC COM port

•

EXT—RJ-45 (8-pin, RS-232-compliant) In-band (backplane) management extension por t for daisy-chaining multiple AS2000 shelves. (ACP-bus mod ul e s o nl y)

1-2

Verilink DCSU 2911 User Manual

Connector Interface Modules

Rear connector modules or connecter interface modules (CIMs) provide connections to the ne two rk and various types of customerprovided equipment (CPE).

They also provide the following connections:

•

Alarm relay These contacts can be wired to an external alarm equipment.

The connector pins provide output as a normally open (NO) contact, a normall y closed (NC) contact , and a common (COM) lead contact.

Loss of carrier conditions activ ate the relay contac ts. For more information on alarms, see Chapter 4, Troubleshooting.

•

External timing source input The 8-pin mini-DIN connector receives clock from an external

timing device.

DCSU 2911 Dual Chan ne l Service Unit

T1 CIM

One T1 DS-1/DSX-1 I/O CIM is available:

•

CIM 29003 DS-1/DSX-1 R J-45 (100Ω) (Fig. 1-3)

Figure 1-3 CIM 29003 DS-1/DSX-1 RJ-45 (100Ω)

ALARM

RELAY

NO COM NC

PORT4 PORT3

Two E1 Connector Interface Modules (CIMs) are available:

•

E1 CIM 29001 LP BNC (75Ω) (Fig. 1-4)

•

E1 CIM 29002 LP RJ-45 (120Ω) (Fig. 1-5)

E1 CIMs

311-

XXXXX

-100

EXT TIMING

INPUT

Figure 1-4 CIM 29001 LP BNC E1 (75Ω)

311-XXXXX-301

EXT TIMING

INPUT

ALARM RELAY

NO COM NC

RX TX

CPE 2

Cutout

DSX-1

RX TX

CPE 1

BNC female connectors

PORT 2 PORT 1

RX TX

NET 2

DS-1

CEPT E1

RX TX

NET 1

29003

CIM

29001 LP

CIM

Verilink DCSU 2911 User Manual

1-3

DCSU 2911 Dual Channel Service Unit

Figure 1-5 CIM 29002 LP Quad RJ-48 E1 (120

No cutout in faceplate

311-

XXXXX

-301

EXT TIMING

INPUT

ALARM

RELAY

NO COM NC

CPE2 CPE1CEPT E1

RJ-48X

Do not use E1 CIM 29002 LP in a dual-line shelf. Due to RFI considerations, there is no cutout in the faceplate to accommodate the dual-line shelf rear panel configuration.

)

Ω

29002 LP

CIM

NET 2 NET 1

CEPT E1

RJ-48C

CAUTION

1-4

Verilink DCSU 2911 User Manual

Specifications

The following specifications apply to the DCSU 2911 module.

Table 1-1 DCSU Specifications

DCSU 2911 Dual Chan ne l Service Unit

T1 (CSU) CEPT E1 (NTE) Number of Ports Transmission (Line)

Rate Line Code Framing Format CPE Impedance

Input Level

Output Level

Output LBO (selectable)

Equalization

4 per module (2 network, 2 data) 4 per module (2 network, 2 data)

1.544 Mbit/s, Rx : ± 200 ppm;

Tx: ± 32

AMI, B8ZS HDB3

Unframed, SF, and ESF with F D L CRC-4, CAS, FAS

100 Ω ± 5% at 772 KHz test CIM 29001 LP: 75 Ω ± 5%

CIM 29003

peak, attenuated by 0 to 27.5 dB

3.0 V ± 0.3 V base-to-peak or

DSX-1 into 100 Ω at 0 dB LBO

0, 7.5, 15, or 22 .5 dB (0 to 3000

feet)

CIM 29003 (in feet)

0-133

133-266

266-399

399-533

533-655

: 3.0 V ± 0.3 V base-to-

:

2.048 Mbit/s ± 50 ppm

CIM 29002 LP: 120 Ω ± 5% at 120 MHz

3.0 V ± 0.3 V base-to-p ea k , attenuated by 0 to 27.5 dB

3.0 V ± 0.3 V base-to-p e a k int o 120

Ω

N/A

Loopbacks Timing

Table 1-2 Connector Interface Module Specifications

CIM Module Electrical Interface Physical Interface Bandwidth Capacity CIM 29001 LP CIM 29002 LP CIM 29003

Line, Payload, Local Line, Payload, Local

Modes: Network, External, and

Internal

External System Port T1—8-pin DIN

E1 BNC (female) 75 E1 RJ-48 (8-pin) 120 T1 DS-1/T1 DSX-1 RJ-48 (8-pin) 100

Verilink DCSU 2911 User Manual

Modes: Network, External, and Internal External System Port E1—BNC, 8-pin DIN

Ω

Ω Ω

2.048 Mbit/s

1.544 Mbit/s

1-5

DCSU 2911 Dual Channel Service Unit

1-6

Verilink DCSU 2911 User Manual

Chapter

2

DCSU 2911 Quick Set-Up

This chapter provides step-by-step procedures for setting up your DCSU 2911 module. This quick configuration guide makes the following assumptions:

•

You are adding th e DCSU 291 1 and an NCM 2000 m odul e to a n existing installation in a dual-line shelf.

•

You are putting two T1s on the two equipment (DSX-1) ports of the DCSU 2911.

•

ESF/B8ZS T1s

•

You are using the NCM 2000 controller module in slot 1 of shelf 1.

Figure 2-1 Example Configuration

NCM 2000

DCSU 2911

Installation

Management Terminal/PC

NOTE: These procedures ma y n ot mat ch your configuration. Use this

Do the following before installing the DCSU 2911:

Install the DCSU in slot 2 as outlined in the AS2000: The Basics manual.

chapter as a guide for equipment installation. Chapter 3 provides details on configuration options.

•

Install all associated Access System 2000 shelves and power supplies, as outlined in the AS2000: The Basics manual.

•

Install and test the NCM in slot 1.

DS1 Port Full T1 24 DS0s

DSX-1 Port PBX, Router or Channel Bank

Verilink DCSU 2911 User Manual

2-1

DCSU 2911 Quick Set-Up

Connect to Craft Port

Terminal Parameters

Connect the modular (RJ-11) end of the Craft cable to the port

OCAL

L

labeled Craft cable to your PC or terminal. If your PC has a DB-9 COM port connector, use a standard PC-A T ser ial cable to complete the connection.

Set your terminal, or terminal program, to

•

19.2 kbit/s

•

8 data bits

•

no parity

•

one stop bit

•

no flow control

NOTE: For the most effective and efficien t set-up, have a ll required

on the NCM front panel. Connect the othe r end of t he

planning data such as your inte nded use, network (telco) prov ider specifications, channel and line requirements, circuit configurations, and other important information handy. For your convenience, works h eets are provided in th e manual, AS2000: The Basics, Chapter 2—Site Planning .

Logging On

Bus Compatibility

NTER

Menu

E

to display the

NTER

E

to display the NCM

Main Menu

, the modules may be assigned to different busses on

YOUR PASSWORD?

YOUR PASSWORD?YOUR PASSWORD?

displays.

display (Figure 2-2) shows the DCSU in the

1. Press

2. Press

If the NCM proper shelf/slot position, continue with the configuration tasks.

The default password for the NCM gives the user Access Level 2 permissions. For a higher access level, see the NCM 2000 User Manual.

If there is no indication of the DCSU on the “shelf map” on the NCM

Main Menu

the shelf midplane. NCMs are sent out with the C bus as the default bus. Oth er modules

are sent out with the A bus as a default. Assign the DCSU to the same bus as the NCM. To assign the bus,

use the DCSU’s Craft port:

1. Connect the Craft cable to the Local port on the DCSU module.

2. At the

pSH+>

prompt, press

prompt and type “craft”.

Main Menu

NTER

E

.

. The

DCSU Main

2-2

Verilink DCSU 2911 User Manual

DCSU 2911 Quick Set-Up

Figure 2-2 NCM Main Menu

Menu Heading Area

Node “Map” (Physical Location of Modules)

Module Key

Command List

-- VERILINK NCM CONTROLLER : FW Rev 4.15, Dec 13 1997 12:53:30 - Site Name: Verilink Test Access Level: 2 Managing at NEAR end node [127.255.255.0] Node ID: 0 <- SLOT -> SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 0 - - - - - - - - - - - - -

❶

1 D *N [U] 2 - - - - - - - - - - - - 3 - - - - - - - - - - - - 4 - - - - - - - - - - - - KEY: A=DIDCSU, B=DIU/DBU, C=CSU, D=DIU, E=SDIU, F=DIU/DDS, G=DHDM, H=ATM/IMUX, I=IDCSU, J=PEP, K=DAC, L=HLM, M=IMUX, N=NCM, Q=QUAD, R=SUBRATE, S=HSM, T=HDM, U=DCSU, V=VCU, X=QPRI S) shelf/slot O) administration C) configuration D) diagnostics P) performance/status A) alarm B) circuit manager I) manufacturing info X) exit this screen A [127.255.255.0] [1,2] DCSU 2911 >

3. From the

DCSU Main Menu

, select the following:

ACE Controller Menu> O) ACE Controller Administration Menu> B) Change ACP Bus

4. Once the bus assignment has been made, reboot the reassigned module by either

Reset

•Using the

Reset

command from the

ResetReset

Administration Menu

, option R, or

ACE Controller

• Reseating the module in its slot.

5. Reconnect to the NCM Local port.

6. Log in. You should now see both modules on the Node Map.

From the NCM using option S, Shelf/Slot. The

Main Menu

, select the DCSU application module

Main Menu

(Figure 2-2) uses

brackets to enclose the U, indicating the DCSU.

Firmware Version and Date of Release

Node Address

Access Level (1-4)

❷❸

Node Address

Active NCM Master Designator

Indicator for the type of shelf: M= Multi-line, D = Dual-line

❶

Asterisk indicates that the NCM is the Main Controller in the shelf

❷

Brackets around module letter ( [U] ) indicate current module selected

❸

Data (Command) Entry Area

Verilink DCSU 2911 User Manual

2-3

DCSU 2911 Quick Set-Up

Port Configuration

From the configuration task. The The

Main Menu

, select option C, “Configuration”, to start the

Configuration Menu

displays (Figure 2-3).

is used to enable—or put in service—each

of the ports and to conf igure the various port parameters.

Figure 2-3 Configuration Menu

A [127.255.255.0] [1,2] DCSU 2911 > c

-- DCSU 2911 CONFIGURATION MENU - PORT 1 PORT 2 PORT 3 PORT 4 In) In Service NO NO NO NO Fn) Frame Format SF SF SF SF Ln) Line Coding AMI AMI AMI AMI Bn) Line Build Out 0db 0db 0-133ft 0-133ft NDn) Network Density NONE NONE NONE NONE NLn) Network Initiated Loop NO NO N/A N/A An) Alarm Declare Time(sec) 0 0 0 0 DLn) FDL Enable NO NO NO NO PRM Enable NO NO NO NO

F) FDL configuration C) copy port T) timing X) exit this screen

A [127.255.255.0] [1,2] DCSU 2911 >

Network Ports

Ports 1 and 2 are network ports and are usually configured before the equipment ports.

1. Type “I1”, then

NET Port 1: In Service? (Y/N)

NET Port 1: In Service? (Y/N)NET Port 1: In Service? (Y/N)

Type “Y” for yes.

2. Type “F1”, then

Port 1 framing:

Port 1 framing:Port 1 framing:

1)SF 2)ESF

1)SF 2)ESF1)SF 2)ESF

Type “2” for ESF framing.

3. Type “L1”, then

Port 1 line coding:

Port 1 line coding:Port 1 line coding:

1)AMI 2)B8ZS

1)AMI 2)B8ZS1)AMI 2)B8ZS

Type “2” for B8ZS.

NTER

E

, to display the prompt:

NTER

E

, to display the prompt:

NTER

E

, to display the prompt:

2-4

Verilink DCSU 2911 User Manual

DCSU 2911 Quick Set-Up

NTER

4. Type “B1”, then

Port 1 line build out:

Port 1 line build out:Port 1 line build out:

1)0db 2)-7.5db 3)-15db 4)-22.5db

1)0db 2)-7.5db 3)-15db 4)-22.5db1)0db 2)-7.5db 3)-15db 4)-22.5db

E

, to display the prompt:

Type “1” for 0db.

NTER

5. Type “ND1”, then

Port 1 density type:

Port 1 density type:Port 1 density type:

1)NONE 2)80 zeros 3)15 zeros 4)12.5% 80s 5)TR 62411

1)NONE 2)80 zeros 3)15 zeros 4)12.5% 80s 5)TR 624111)NONE 2)80 zeros 3)15 zeros 4)12.5% 80s 5)TR 62411

E

, to display the prompt:

Type “1” for NONE.

NTER

6. Type “NL1”, then

NET Port 1: allow network initiated loop? (Y/N)

NET Port 1: allow network initiated loop? (Y/N)NET Port 1: allow network initiated loop? (Y/N)

E

, to display the prompt:

Type “Y” for yes.

NTER

7. Type “A1”, then

Alarm Declare Time(0..127 sec):

Alarm Declare Time(0..127 sec):Alarm Declare Time(0..127 sec):

E

, to display the prompt:

Type “1” to enable alarm reporting. (Using “0” will disable alarm reporting).

NTER

8. Type “DL1”, then

NET Port 1: Enable FDL? (Y/N)

NET Port 1: Enable FDL? (Y/N)NET Port 1: Enable FDL? (Y/N)

E

, to display the prompt:

Type “Y” for yes, because this will be connected to an ESF T1.

NTER

E

9. Type “F1”, then

Options)

Figure 2-4 Configuration Menu (FDL Options)

A [127.255.255.0] [1,2] DCSU 2911 > f

-- DCSU 2911 CONFIGURATION MENU (FDL OPTIONS)- PORT 1 PORT 2 PORT 3 PORT 4 Sn) FDL Standard T1.403 T1.403 T1.403 T1.403 Mn) FDL Mode TERM TERM TERM TERM Pn) Poll Mode NO POLL NO POLL NO POLL NO POLL Cn) PRM C/R bit NONE NONE NONE NONE In) Idle Pattern FLAGS FLAGS FLAGS FLAGS An) Send/Rec LLB BOP YES YES YES YES Bn) Send/Rec PLB BOP YES YES YES YES

X) exit this screen A [127.255.255.0] [1,2] DCSU 2911 >

.

, to display the

Configuration Menu (FDL

The default settings in the Configuration Menu (FDL Options) are standard settings that will work most of the time. No further settings need to take place now. (For more information on the FDL Options, see Chapter 3.)

Verilink DCSU 2911 User Manual

2-5

DCSU 2911 Quick Set-Up

NTER

10. Type “T1”, then

(Timing Options)

Figure 2-5 Configuration Menu (Timing Options)

A [127.255.255.0] [1,2] DCSU 2911 > t

-- DCSU 2911 CONFIGURATION MENU (TIMING OPTIONS)-Current shelf timing source: Card 1, INTERNAL (PRIMARY) Source Slot Number Synchronization Auto Restore PRIMARY PC) 1 PS) INTERNAL PA) YES SECONDARY SC) 1 SS) INTERNAL SA) YES TERTIARY TC) 1 TS) INTERNAL TA) YES R) Receive clock from shelf: YES X) exit this screen

A [127.255.255.0] [1,2] DCSU 2911 >

E

, to display the

:

a. Type “PC” to select the primary clocking source for the

DCSU. Enter the card number “2”.

b. Type “PS” to select the primary synchronization for the

DCSU. From the selection, select “1” to choose the Net 1 Port as the primary timing source.

c. Type “PA” to select the auto restore for the primary timing

source. At the prompt, type “Y” for yes to enable the auto restore.

Configuration Menu

d. Typ e “SC” to select the sec o ndary clocking source for the

DCSU. Enter the card number “2”.

e. Type “SS” to select the secondary synchronization for the

DCSU. From the selection, select “2” to choose the Net 2 Port as the secondary timing source.

f. Type “SA” to sel ec t th e au to re store for the secondary

timing source. At the prompt, type “Y” for yes to enable the auto restore.

g. Type “TC” to select the tertiary clocking source for the

DCSU. Enter the card number “2”.

h. Type “TS” to select the tertiary synchronization for the

DCSU. From the selection, select “5” to choose the Net 3 Port (Equipment Por t 1) as the tertiary timing sourc e .

i. Type “TA” to select th e au to re s t o re fo r the te rt i a ry ti m ing

source. At the prompt, type “Y” for yes to enable the auto restore.

j. Exit the Configuration Menu (Timing Options) by typing

“X”.

11. Copy or “clone” the port configuration to the next port. Type

NTER

“C”, then

Enter the port to copy (1-4):

Enter the port to copy (1-4):Enter the port to copy (1-4):

E

, to display the prompt:

2-6

Type “1” to select the now configured Net Port 1. The prompt will display:

Verilink DCSU 2911 User Manual

DCSU 2911 Quick Set-Up

Enter the destination port (1-4 or 'A' for all):

Enter the destination port (1-4 or 'A' for all):Enter the destination port (1-4 or 'A' for all):

Type “2” to select Net Port 2.

Are you sure to copy port 1 to port 2? (y/n)

Are you sure to copy port 1 to port 2? (y/n)Are you sure to copy port 1 to port 2? (y/n)

Type “Y” for yes. The following prompt will display.

Copying port 1 to port 2

Copying port 1 to port 2Copying port 1 to port 2

Equipment Ports

Ports 3 and 4 are equipment ports and are usually configured after the network ports.

NTER

E

1. Type “I1”, then

NET Port 1: In Service? (Y/N)

NET Port 1: In Service? (Y/N)NET Port 1: In Service? (Y/N)

, to display the prompt:

Type “Y” for yes.

NTER

2. Type “F1”, then

Port 1 framing:

Port 1 framing:Port 1 framing:

1)SF 2)ESF

1)SF 2)ESF1)SF 2)ESF

E

, to display the prompt:

Type “2” for ESF framing.

NTER

3. Type “L1”, then

Port 1 line coding:

Port 1 line coding:Port 1 line coding:

1)AMI 2)B8ZS

1)AMI 2)B8ZS1)AMI 2)B8ZS

E

, to display the prompt:

Type “2” for B8ZS.

NTER

4. Type “B1”, then

Port 3 line build out:

Port 3 line build out:Port 3 line build out:

1)0-133ft 2)133-266ft 3)266-399ft 4)399-533ft 5)533-655ft

1)0-133ft 2)133-266ft 3)266-399ft 4)399-533ft 5)533-655ft1)0-133ft 2)133-266ft 3)266-399ft 4)399-533ft 5)533-655ft

E

, to display the prompt:

Type “1” for 0-133f t.

NTER

5. Type “ND1”, then

Port 1 density type:

Port 1 density type:Port 1 density type:

1)NONE 2)80 zeros 3)15 zeros 4)12.5% 80s 5)TR 62411

1)NONE 2)80 zeros 3)15 zeros 4)12.5% 80s 5)TR 624111)NONE 2)80 zeros 3)15 zeros 4)12.5% 80s 5)TR 62411

E

, to display the prompt:

Type “1” for NONE.

NTER

6. Type “A1”, then

Alarm Declare Time(0..127 sec):

Alarm Declare Time(0..127 sec):Alarm Declare Time(0..127 sec):

E

, to display the prompt:

Using “0” will disable alarm reporting. To enable alarm reporting, type the time that you want to elapse before an alarm is reported.

NTER

7. Type “C”, then

Enter the port to copy (1-4):

Enter the port to copy (1-4):Enter the port to copy (1-4):

Verilink DCSU 2911 User Manual

E

, to display the prompt:

2-7

DCSU 2911 Quick Set-Up

Type “3” to select the now configured Net Port 3 (Equipment Port 1). The prompt will display:

Enter the destination port (1-4 or 'A' for all):

Enter the destination port (1-4 or 'A' for all):Enter the destination port (1-4 or 'A' for all):

Type “4” to select Net Port 4 (Equipment Port 2).

Are you sure to copy port 1 to port 2? (y/n)

Are you sure to copy port 1 to port 2? (y/n)Are you sure to copy port 1 to port 2? (y/n)

Type “Y” for yes. The following prompt will display.

Copying port 3 to port 4

Copying port 3 to port 4Copying port 3 to port 4

Your DCSU 2911 is now configured and ready to be placed into service by connecting the unit to the appropriate cables to the network and to your equipment.

The LEDs should all be lit green to indicate that all is well and that there are no alarms. I f any of the LED s are not green, see Ch apter 5, “Troubleshooting” for more information.

2-8

Verilink DCSU 2911 User Manual

Chapter

3

DCSU T1 Craft Interface

This chapter describes how to config ure, operate, and test the DCSU 2911 T1 parameters u sing th e Craft int erface. For E1 ci rcuits, refer to Chapter 4, DCSU E1 Craft Interface. To use the DCSU with an NCM 2000 as the controller module, see the NCM 2000 User Manual.

The Craft interface is accessible via a direct cable connection from the front panel to an ASCII terminal or PC running a terminal emulator program. T he DCS U 2911 Cra ft i nte rface i s n ot su ppor ted via Telnet.

NOTE: There may be options displayed on the ASCII screen that will not be

usable for your particular equipment configuration. Also, note that the ASCII terminal interface does not have an error checking facility. Therefore, be extremely careful about what parameters or data you enter at the prompts.

The following major functions are available through the Craft interface:

Logging On

•

Administering nodes

•

Configuring the network ports, CPE ports, and timing parameters

•

Performing diagnostics on network and CPE ports

•

Evaluating perf or ma n ce an d s ta t us

•

Monitoring alarms

In addition to the Craft terminal interface, you can use Verilink’s Node Manager—an interactive graphical user interface (GUI) management software package—to configure the appl ications module. For more information, see the Node Manager for Windows 95 User Manual.

1. To access the DCSU 2911 for the first time, at the

NTER

prompt, press Until you change the password, the

password. If you have changed the default password, then type the correct password (up to 8 characters, including spaces). The screen displays placeholders ( the password. Press

E

.

NTER

E

key is the default

******

NTER

E

.

PASSWORD

) as you type

Verilink DCSU 2911 User Manual

3-1

DCSU T1 Craft Interface

In the screen displayed

•

Slots containing DCSU modules display a U at the intersection of rows and columns designating the shelf/slot location of the DCSU module.

Figure 3-1

•

The letter surrounded by brackets (

[ ]

) indicates the location of the module that is referenced and modified via submenus of the

•

On initial log in, brackets surround the module being used as

Main Menu

.

the log-in access point.

•

The option S (shelf/slot) is used to move to a desired module in the node.

In Figure 2-1, the

Main Menu

shows a DCSU 2911 ( design ated b y U) in slot 1. The currently accessed module is indicated by the square brackets (

[ ]

). The asterisk next to the U indicates the DCSU 2911

that is the node master.

ACE Controller Menu

(Physical Location of Modules) Node “map

-- VERILINK ACE CONTROLLER at [1,1]: FW Rev 1.44, Dec 11 1996 -Site Name: Access level: 4 <- SLOT -> SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 0 - - - - - - - - - - - - 1 D [*U] 2 - - - - - - - - - - - - 3 - - - - - - - - - - - - 4 - - - - - - - - - - - - 5 - - - - - - - - - - - - 6 - - - - - - - - - - - - 7 - - - - - - - - - - - - KEY: *=CONTROLLER N=NCM Q=QUAD M=IMUX A=DIDCSU P=DPRI U=DCSU S) shelf/slot O) node administration C) configuration D) diagnostics P) performance/status A) alarm B) circuit I) manufacturing info X) system log off [1,1] DCSU 2911 >

Menu Heading Area

Screen Key Letters

3-2

Command List

D a ta E n try P ro mpt

Main Menu

The

displays the following:

1. In the menu heading area, the location of the DCSU Controller (by shelf and slot,

Verilink DCSU 2911 User Manual

[1,1]

) and the firmware revision (

FW Rev

).

DCSU T1 Craft Interface

2. The physical location of the module—a node map (slot/shelf display table) in which the application modules occupying the slots are identified by their screen key letters.

3. A command list displayi ng the main categories of operations available to you.

4. A prompt for command entry in the data entry area.

To exit the ASCII screens, use the (Exit Menu) command can be used in the

X

(Exit Menu) command. The

Main Menu

and all

sub-menus.

Shelf and Slot Parameters

To access a DCSU 2911 module from the specify the Shelf/Slot address.

•

If the module slot address is al ready on the current shelf, enter the slot number, then press

•

If the module slot address is on a different shelf, enter the shelf number followed by a comma and then the slot number

NTER

1,3

(e.g.,

Table 3-1

Command Description Options

Shelf/Slot Designation

S Shelf: Use this field to select the shelf containing the DCSU 2911 you want

to access. Slot: Use this field to select the slot containing the DCSU 2911 you want

to access.

) then press

.

E

Main Menu

NTER

E

.

, enter S to

0–4

1–13 (Multi-line) 1-5 (Quint-line) 1–2 (Dual-line)

X

NOTE: Each shelf in a node must have a unique shelf address. Otherwise,

Controller Menu (Main Menu)

Table 3-2 DCSU 2911 ACE Controller Menu (Main Menu) Commands

Command Description

S Shelf/Slot: Navigates from one card to another. O Node Administration C Configuration DDiagnostics

P Performance/Status AAlarm Threshold

Use the following commands on the 2911 parameters:

there will be unpredicta ble behavior.

Main Menu

Verilink DCSU 2911 User Manual

to set the DCS U

3-3

DCSU T1 Craft Interface

Command Description

B Circuit Information

I Manufacturing Info

XSystem Log Off

Administration Menu—Direct Access

Figure 3-2 Controller (Node) Administration Menu

-- ACE CONTROLLER ADMINISTRATION MENU -Date/Time/Zone: 12-11-96 18:02:27 Node Address: [0.0.0.51] System uptime: 3:56:27 ACP bus: A T) set time D) set date Z) set time zone A) set node address R) reset card P) change password Q) query firmware I) change site name O) switch over permanent Y) switchover once B) change ACP bus X) main menu [1,1] DCSU 2911 >

Enter O from the modify and manage system-wide parameters, such as changing time or passwords.

NOTE: Set the time zone first before settung the time.

Main Menu

Following is a brief description of the parameters:

to use the

Administration Menu

to

3-4

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

Table 3-3

Command Description Options

Administration Menu Parameters

T Set Time: Use this option to set the time for your node.

Set the time zone before setting the time.

D Set Date: Use this option to set the date for the node. Enter the date

Z

A Set Node Address: Use this option to indicate Verilink’s ACP node

R Reset Card: Use this option to reboot the card. Yes to Reset P Change Password: Use this option to assign a new password for a

(mm/dd/yy). Enter the day of the week (1=Sunday).

Set Time Zone:

Time can be specified for any of four time zones: Eas t ern Standard Time (EST), Central Standard Time (CST), Mountain Standard Time (MST), or Pacific Sta ndard Time (PST).

To set the time zone as Greenwich Mean Time, select Local Time. To use the custom option, enter positive or negative offset in hours

from Greenwich Mean Time. Then enter an abbreviation for the time zone (6 charact e r s m aximum).

Choose either

address (the node address follows the same synt ax conventions as the network IP address, but they are not the same). If you change the default address, make sure the first byte is in the range of 0-

127. All other bytes can be values from 0 to 255. However, 0.0.0.0 is not a supported address.

privileged or unprivileged user.

Use this option to set the time zone for the node.

Yes

or No for the “daytime savings” option.

Time: hh:mm:ss

Date: mm/dd/yy

Time zone:

1) local time

2) EST

3) CST

4) MST

5) PST

6) custom Daylight Savi ngs

Time: Yes or No

Node address such as: WWW.XXX.YYY.ZZZ where WWW must be in the range of 0—127.

-- PASSWORD MENU -P) Privileged Password U) Unprivileged Password X) main menu [1,8] DCSU 2911 > p Enter New Privileged Password: Enter New Privileged Password again:

Privileged Password—Enter the new password and confir m it by reentering it. Use this option to view and change all the DCSU information, including changing equipment configurations.

Unprivileged Password—Enter the new password and confirm it by reentering it. With this password you can only view the infor mation about the DCSU module, you cannot alter any configuration information associ ated with this module.

Q Query Firmw are: Use this option to display the firmware versions

and their status for the A or B partitions.

I Change Site Name: Use this option to specify the site name for the

DCSU. All reports will contain this information and—in case of problems—will help identify the problem location.

O Switch Over Permanent: Use this option to indicate partition A or B

and its correspo nding f irmware v ersion w hen reb ooting the module. Assign a permanent partition to boot from in case of power failure. Before choosing a pa rtition, ensu re that a firmware version exists on both partitions using the Query Firmware option above.

Site name: 20 characters max.

1) A

2) B

Verilink DCSU 2911 User Manual

3-5

DCSU T1 Craft Interface

Command Description Options

Y Switchover Once: Use this option for testing new firmware versions.

Use this option to change from partition A to B or vice versa. Though you can use this optio n for d iagnostics, indi ca t e a permanent partition to boot from in case of a powe r fa ilu re .

B Change the ACP communications bus: NOTE: This change requires

resetting the module.

X Exit the Administration Menu

1) A

2) B

Yes or No (Y/N)

Configuration Menu

Enter C on the

Figure 3-3 DCSU 2911 Configuration Menu

-- DCSU 2911 CONFIGURATION MENU - PORT 1 PORT 2 PORT 3 PORT 4 In) In Service YES YES YES YES Fn) Frame Format ESF ESF ESF ESF Ln) Line Coding B8ZS B8ZS B8ZS B8ZS Bn) Line Build Out 0db 0db 0db 0db NDn) Network Density NONE NONE NONE NONE NLn) Network Initiated Loop YES YES NO NO An) Alarm Declare Time (sec) 0 0 0 0 DLn) FDL Enable NO NO NO NO PRM Enable NO NO NO NO

F) FDL configuration T) timing options X) Exit this screen [1,1] DCSU 2911 >

NOTE: For this manual, whenever the ASCII screen is shown to indicate

Port 1, Port 2, Port 3, Port 4, these ports ar e the Network Port 1, Network Port 2, CPE Port 1, and CPE Port 2, respectively.

Main Menu

to display the

Configuration Menu

.

3-6

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

Table 3-4 DCSU Configuration Menu Command Keys

Command Description Options

I

n

F

n

L

n

In Service: This option places the port in service. Yes or No

Frame Format: Choose SF (Superframe) or ESF (Extended Superframe Format) as dictated by what your i nsta llation supp orts . installations not supporting ESF.

SF provides traffic signaling and framing. ESF provides cyclic redundancy check, performance monitoring, data checking,

and link bits (Facility Data Link, or FDL). The chart below shows which combinations of framing formats at the equipment and network ports are valid:

Equipment Network Valid Option

ESF ESF Yes SF SF Yes SF ESF Yes

ESF SF No

Line Coding: Use this option to choose Alternate Mark Inversion (AMI) or Bipolar Eight-Zero Substitution (B8ZS) as dictated by your T1 facility.

B8ZS is a protocol that replaces eight consecutive zero bi ts with two intention al bipolar violations (BPVs) that are n ot counted a s err ors by the B8 ZS equip ment. B8ZS enables each DS0 to transmit at 64 kbit/s with unlimited zeros. This option overrides any selected network density enforcement.

AMI is a T1 signal in which successive ones (pulses) alternate in polari ty a nd in which zeros (spaces) are of zer o amplitude. AMI is the original T1 line format that does not support long strings of zeros. Normally, this option is used in conjunction with the network density enforcement option.

If the T1 facility experiences pattern sensitive errors or constant dribbling errors, verify that the unit is not mis-optioned for AMI. The intentional errors inserted by B8ZS equipment cannot be decoded by the AMI equipment.

ESF is recommended

. Select SF for

(Y/N)

1) SF

2) ESF

1) AMI

2) B8ZS

B

n

Line Build Out: Line Build Out is the signal strength used by the CSU and is calculated by considering the length of the cable connecting the first line repeater and the CSU. It is the db loss inserted to compensate for transmitting levels to first repeaters when no network in terf ac e is involv ed . Choo se o ne of the following options:

0 db: if the repeater is between 2000 and 3000 feet from the CSU, or if you are using a network interface unit (smart jack) used by mo st phone companies.

-7.5 db: if the repeat er is between 1000 and 1999 feet from the CSU.

-15 db: if the repeater is betw een 250 and 999 feet from the CSU.

-22.5 db: if the repeater is between 0 and 249 feet from the CSU.

Verilink DCSU 2911 User Manual

1) 0db

2) -7.5db

3) -15db

4) -22.5db

3-7

DCSU T1 Craft Interface

Command Description Options

ND

NL

A

DL

Network Density: This option specifies the type of network density. Digital

n

transmissions over public switched te lephone network lines cannot support long strings of zeros (repeaters and clock in g devices lose synchronization). Therefore, the density algorithms ensure that a minimum pulse density is met to ensure stable system timing.

Choose one of the following if using 64K AMI. Note that these options are overridden by a B8ZS line code:

None: does not insert a one. Use this option always with B8ZS or a 56K channel. 80 Zeros: inserts a one into every string of more tha n 80 consec u t ive zeros. 15 Zeros: inserts a one into every string of more tha n 15 consec u t ive zeros.

12.5% & 80 Zeros: inserts a one into every string of eight or more consecutive zeros when the average density of ones fall below 12.5% or if there are more than 80 consecutive zeros.

TR 62411: inserts a one into every string of more than 15 consecutive zeros or when there are less than a minimum number of N ones in every window of 8(N+1) data bits (12.5%). N can be any value from 1 to 23. This option is the same as 12.5% + 15Z.

Network Initiated Loop: Use this option to spec ify if yo u wish to allow the far

n

end or telco to put your DCSU in a loopback.

n

Alarm Declare Time (sec): Use this option to indicate how many seconds will elapse before a message regarding a problem is displayed.

FDL Enable/PRM Enable: Facility Data Link (FDL). The ESF Facility Data Link

n

transmits framing information, error events, and loopback controls. FDL uses 4 kbit/s of bandwidth to transmit data. This window option only enables or disables FDL. It only reports if you have the Performance Report Message Command/Response (PRM C/R) bit enabled or disabled. To change this option’s status or con figuration, use F (FDL Configuration) and sel ec t Cn (PRM C/R bit).

1) NONE

2) 80 zeros

3) 15 zeros

4) 12.5% 80s

5) TR 62411

Yes or No (Y/N)

0..127 seconds

Yes or No (Y/N)

F FDL configuration: Displays a submenu of choices, Figure 3-4. T Timing options: Displays a submenu of choices, Figure 3-5. X Exit this screen.

3-8

Verilink DCSU 2911 User Manual

Configuration Menu (FDL Options) Submenu

Configuration Menu (FDL Options)

The

F

command from the

Configuration Menu

DCSU T1 Craft Interface

is obtained by entering the

.

Figure 3-4

Table 3-5 Configuration Menu (FDL Options) Parameters

Command Description Options

S

M

P

DCSU 2911 Configuration Menu (FDL Options)

-- DCSU 2911 CONFIGURATION MENU (FDL OPTIONS) - PORT 1 PORT 2 PORT 3 PORT 4 Sn) FDL Standard T1.403 T1.403 T1.403 T1.403 Mn) FDL Mode TERM TERM TERM TERM Pn) Poll Mode NO POLL NO POLL NO POLL NO POLL Cn) PRM C/R bit NONE NONE NONE NONE In) Idle Pattern FLAGS FLAGS FLAGS FLAGS An) Send/Rec LLB BOP YES YES YES YES Bn) Send/Rec PLB BOP YES YES YES YES

X) Exit this screen [1,1] DCSU 2911 >

n

FDL Standard—Selects which (or both) type of ESF standard w il l be supported through FDL mesages. Choose from support for Bellcore 540 16 standard, ANSI T1.403, or both. Use 54016 if a connection to an AT&T T1 is involved.

FDL Mode: Specify Terminated if you want to end the FDL transmission at this

n

node. Specify Pass if you want the FDL transmission to continue to another

Currently, Pass is not supported.

node. Poll Mode: Specify if you want FDL to poll, no poll, or accept unsolicited

information. Poll: This has the near-end CSU automatically poll the far-end CSU for alarms

every 4 seconds and report thes e al ar ms .

1) TR54016

2) T1.403

3) BOTH

1) TERM

2) PASS

1) POLL

2) NO POLL

3) UNSOLICIT

No Poll: This disables alarm polling at both ends. Select this option when the nodes at both ends are connected and both nodes report local alarms.

Unsolicit: This has the far-end automatically send its alarm status (when it detects an LOS) to the near-end. Select this option for far-end CSU circuit element when the near-end CSU is set to Poll.

The current release does not support this option. It is being planned for a future release.

C

n

I

n

PRM C/R bit: Perfo rmance Report Messag e Command/Respo nse as defined in the ANSI T1.403 specifica tio n .

Specify User to set the bit to 0, indicating that you are the PRM source terminal. Specify TELCO to set the bit to 1, indicating that the phone company is the PRM source. Phone companies usually set it to Telco, non-phone companies set it to User. To not use User or TELCO, choose None.

Idle Pattern: This option selects the idle pattern code when no user data is on the net. Depending on your network, choose the All Ones (11111111) or Flags (01111110) pattern.

This signal is transmitted continuously until a message is sent. Once the message completes transmission, it reverts to the signal of choi ce.

Verilink DCSU 2911 User Manual

1) NONE

2) USER

3) TELCO

1) ALL ONES

2) FLAGS

3-9

DCSU T1 Craft Interface

Command Description Options

A

n

B

n

X Exit the FDL Configuration screen.

Configuration Menu (Timing Options)

Send/Rec LLB BOP: Enables the Line Loopback Bit-Oriented Protocol (LLB BOP), used to send loopback signals through the FDL to test the T1 line.

Send/Rec PLB BOP: Enables the Payload Loopback Bit-Oriented Protocol (PLB BOP) to use FDL loopbacks to test the far-end CSU.

Display the

Configuration Menu (Timing Options)

typing the command T from the top Figure 3-3.)

Submenu

Figure 3-5 DCSU 2911 Configuration Menu (Timing Options)

-- DCSU 2911 CONFIGURATION MENU (TIMING OPTIONS)- Current shelf timing source: Card 1, INTERNAL (PRIMARY) Source Synchronization Auto Restore PRIMARY PS) INTERNAL PA) NO SECONDARY SS) INTERNAL SA) NO TERTIARY TS) INTERNAL TA) NO R) Receive clock from shelf: NO X) exit this screen [1,1] DCSU 2911 >

Yes or No (Y/N)

submenu by

Configuration Me nu

. (See

The following timing parameters can be chosen from the DCSU:

Table 3-6 Dual CSU 2911 Timing Parameters

Command Description Options

R Receive Clock from Shelf: Choose whether the DCSU will receive its timing

signal from another module in the shelf, or from an on-board timing source. See Figure 2- 5, Table 2-6.

PS Primary Synchronization: Choose one of the following as the primary

source for clock synchronization. Net 1: Network port 1 Net 2: Network port 2 External: External clock Internal: Intern al clo c k Net 3: Equipment port 1 TT sig nal Net 4: Equipment port 2 TT sig nal

Yes or No (Y/N)

1) NET 1

2) NET 2

3) EXTERNAL

4) INTERNAL

5) NET 3

6) NET 4

3-10

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

Command Description Options

SS Secondary Synchronization: Use this option to specify an alternate source

of timing for synchronization. If the primary sou rce is unava ila b le, this source will be used.

Net 1: Network port 1 Net 2: Network port 2 External: External clock Internal: Intern al clo c k Net 3: Equipment port 1 TT sig nal Net 4: Equipment port 2 TT sig nal

TS Tertiary Synchronization: Use this option to specify an alternate source of

timing for synchronization. If the primary and sec o nd a ry so u r c es are unavailable, this source will be used.

Net 1: Network port 1 Net 2: Network port 2 External: External clock Internal: Intern al clo c k

1) NET 1

2) NET 2

3) EXTERNAL

4) INTERNAL

5) NET 3

6) NET 4

1) NET 1

2) NET 2

3) EXTERNAL

4) INTERNAL

5) NET 3

6) NET 4

Net 3: Equipment port 1 TT sig nal Net 4: Equipment port 2 TT sig nal

PA Primary Auto Restore: Choose

SA Secondary Auto-Restore: Choose

TA Tertiary Auto Restore: Choose

X Exit the Timing Options screen.

preference automatically if the clock in the node fails. Otherwise, choose

No

to synchronize to other sources (secondary, tertiary) or stay down. In case of a failure, setting up auto restore hel p s restore timing. If you have not set up auto-restore to the primary source because you believe that it is unstable; but you have chosen a secondary source; after rebooting, the module will use the latter as the source to restore timin g to the module or shelf.

preference automatically if that clock in the node fails. Otherwise, choose

No

to synchronize to other sources (primary, tertiary) or stay down. Specifying a secondary source for clocking is useful for power failures that result in the failure of the primary automatic restore source. Restoring from a secondary source may take up t o 60 seconds.

preference automatically if that clock in the node fails. Otherwise, choose

No

to synchronize to ot her sources (primary, se condary) or stay down . Specifying a tertiary source for clocking is useful if a power failure results in the failure of the primary and secondary sources for automatic restore. Restoring from a tertiary source may take up to 90 seconds.

Yes

to resynchronize to the clock

Yes

to resynchronize to the clock

Yes or No (Y/N)

Alternate Timing Options Submenu

If the option, “Receive clock from shelf” h as been selected b y using the R command from the

Configuration Menu (Timing Options)

submenu, the Shelf Timing Table is displayed. (Figure 3-5)

Verilink DCSU 2911 User Manual

3-11

DCSU T1 Craft Interface

Figure 3-6

DCSU 2911 Configurat io n Menu (Timing Options)

-- DCSU 2911 CONFIGURATION MENU (TIMING OPTIONS)- Current shelf timing source: Card 1, INTERNAL (PRIMARY) Source Slot Number Synchronization Auto Restore PRIMARY PC) 1 PS) INTERNAL PA) NO SECONDARY SC) 1 SS) INTERNAL SA) NO TERTIARY TC) 1 TS) INTERNAL TA) NO R) Receive clock from shelf: YES X) exit this screen [1,1] DCSU 2911 >

The following additional timing parameters can be chosen when the “Receive clock from shelf” option has been chosen (the other available options are discussed in the previous table):

Table 3-7 Timing Parameters

Command Description Options

PC Slot number of the card to use as a primary timing source. MLS: 1—13

QLS: 1—5 DLS: 1—2

SC Slot number of the card to us e as a se co n d ary timing sourc e. MLS: 1—13

TC Slot number of the card to use as a tertiary timing source. MLS: 1—13

QLS: 1—5 DLS: 1—2

Diagnostics Menu

Display the

Menu

(Figure 2-1).

Figure 3-7 DCSU 2911 Diagnostic Menu

-- DCSU 2911 DIAGNOSTICS MENU - PORT 1 PORT 2 PORT 3 PORT 4 Loop type NONE NONE NONE NONE Test Pattern NONE NONE NONE NONE Test Error Counter 0 0 0 0 Ln) Line Loop Pn) Payload Loop Rn) Local Loop Tn) Test Pattern An) Send LLB BOP Bn) Send PLB BOP En) Reset Test Counter X) exit this screen [1,1] DCSU 2911 >

Diagnostics Men u

using command D from the

Main

3-12

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

Table 3-8 Diagnostics Menu Parameters

Command Description Options

L

n

Line Loopback (LLB): This option tests the network line from the farend node. With Line L o op b ac ks , in co ming signals are lo o p ed aro u nd

1) DEACTIVATE

2) ACTIVATE and sent back toward the network. The service provider or far-end node administrator can then determine if the network line is good.

CPE

P

n

Payload Loopback (PLB): This option tests the CSU from the far-end node. In this case, the data goes through the network line and the

DCSU Framer

T1

1) DEACTIVATE

2) ACTIVATE DCSU framer before it is looped back toward the network.

CPE

R

n

Local Loopback (RLB): This option tests all of the CSU. Also known as a Repeater Loopback, the data sent from the data equipment passes

DCSU Framer

T1

1) DEACTIVATE

2) ACTIVATE through the CSU up to the network interface and back to the equipment without passing through the network line.

CPE T1

DCS Framer

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3-13

DCSU T1 Craft Interface

Command Description Options

T

n

Test Pattern: Use this option to indicate one of the following options: None: This option indicates that no test pattern will be used. 3 in 24: The 3-in-24 ONEs test pattern consists of three pulses in every

24-bit sequence (100 01000 10000000 00000000). This stress test is useful for testing ci rcuits und er extremely low de nsity con ditions. Th is is mostly useful for T1 AMI.

QRSS: The Quasi-Random Signal Sequence limits the signal to a maximum of 15 zeros in a row. These signals contain a medley of 20bit words (except for more than 15 consecutive 0s). It repeats every 1,048,575 bits. Also, it contains high density and low density sequences, and sequences that change from low density to high density and vice versa.

2N20-1: This pattern tests circuits for equalization and timing. It is the same as QRSS, but without the 15 zeros restriction.

1/8: This pattern tests the ability of a circuit to support a pattern having the minimum ones density (each byte has the sequence

1000000). It helps discover a timing recovery problem. This is mostly useful for T1 AMI.

2N1 5-1: This pattern tests circuits for equalization and timing using an alternate pattern for jitter testing. The pattern repeats every 32,757 bits.

1) NONE

2) 3/24

3) QRSS

4) 2N20-1

5) 1/8

6) 2N15

7) ALL 0’S

8) 55 OCTET

(Daly)

9) ALL 1’S

-1

All 0s: This pattern is composed entirely of framed zeros (00000000). It should only be used in conjunction with B8 ZS framing.

55 Octet: This Daly 55 octet pattern tests circuits for line, module, and timing recovery. By rapidly transitioning from a long sequence of low density octets to high density octets, the circuit is stress tested.

All 1s: This pattern is com p osed entirely of framed one s (11111111). It stresses circuits by m aximizing power consumption.

A

n

B

n

E

n

X Exit the Network Port Diagnostics Menu

Send LLB BOP—Sen ds a request f or a loopba ck in th e 4K FD L (Facil ities Data Link) portion of ESF framing. Produces a line loopback in the remote CSU that faces the local DCSU module. This loopback will not work on a T1 facility that passes through a DACS unless the FDL portion of the ESF framing is mapped through the DACS.

Send PLB BOP—Sends a request for a loopback in the 4K FDL portion of the ESF framing. Produces a loopback in the remote CSU that faces the local DCSU module. This loopback will not work on a T1 facility that passes through a DACS unless the FDL portion of the ES F framing is mapped through the DACS.

Reset Test Counter: This option resets the test counter to 0. The counter is automatically reset when changing patterns.

When finished configuring the network port diagnostics parameters, enter X to return to the

Main Menu

1) DEACTIVATE

2) ACTIVATE

1) DEACTIVATE

2) ACTIVATE

.

Performance/ Status Menu

3-14

Use the

Performance/Status Menu

to monitor the func ti oning and condition of the ports. The parameters in this menu co unt the various problems that occur in a given period of time. Performance information is logged in 15- minute intervals over a 24- ho ur period.

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

To access the

Performance/Status Menu

enter P.

Figure 3-8 DCSU 2911 Performance/Status Menu

-- DCSU 2911 PERFORMANCE/STATUS MENU - PORT 1 PORT 2 PORT 3 PORT 4 LOS NO YES YES YES LOF NO YES YES YES AIS Rx/Tx NO/NO NO/NO NO/NO NO/NO RAI Rx/Tx NO/NO NO/YES NO/YES NO/YES SLIP NO NO NO NO CRC6 NO NO NO NO BER NO NO NO NO CGA NO YES YES YES C) display counters P) display performance data T) threshold status X) exit this screen [1,1] DCSU 2911 >

Counter Submenu

From the

Performance/Status Menu

displayed by typing the command C.

Figure 3-9 DCSU 2911 Counter Menu

-- DCSU 2911 COUNTER MENU - BPV FE ESF CRC PORT 1 255 0 0 0 PORT 2 255 0 0 0 PORT 3 45 64 0 0 PORT 4 46 65 0 0

from the

Counter Menu

, the

Main Menu

is

,

Rn) Reset counters X) exit this screen [1,1] DCSU 2911 >

This menu displays counts for the following:

•

Bipolar Violations (BPV): A violation of the T1 bipolar alternate mark inversion transmission pattern in which consecutive ones (pulses) are erroneously transmitted as pulses of like polarities. Bipolar violations normally indicate transmission errors.

•

Frame Bit Error (FE): An error in the received framing bit pattern and the number of whole seconds in which a framing bit error has occurred.

•

Extended Superframe Format (ESF): This is the AT &T T1 framing standard that provides frame synchronization, cyclic redundancy check, data checking, and link bits . This counter is only available in ESF mode.

•

Cyclic Redundancy Check (CRC): An error-checking algorithm performed on data transmissions. On a frame-by-frame basis, a numerical value is derived from the data in the bit stream at one end of transmission. When each frame reaches the receive

Verilink DCSU 2911 User Manual

3-15

DCSU T1 Craft Interface

end, the cyclic redundancy check is calculated again and compared with the value generated by the transmit-side data. Discrepancies indicate one or more transmission errors. This counter is only available in ESF mode.

Choose Rn (where n is the number of the port) to reset the counters. This command will return the values of the BPV, FE, ESF, and CRC counters to zero or N/A.

Choosing X returns you to the

Performance Data

Figure 3-10 Performance/Status Menu (Data Summary)

-- DCSU 2911 PERFORMANCE/STATUS MENU -24hr T1 Performance Data Summary ES BES SES UAS LOF LOSS AISS PORT 1 0 0 9932 87298 9931 9932 0 PORT 2 0 0 9968 87298 9968 0 0 PORT 3 0 0 0 0 0 0 0 PORT 4 0 0 0 0 0 0 0 En) Errored Seconds Un) Unavailable Seconds Bn) Bursty Seconds Sn) Severely Errored Seconds Ln) LOS Seconds Fn) SEF Seconds Dn) LOF Seconds On) OOF Seconds An) AIS Seconds Cn) Controlled Slip Seconds Mn) Loss of Frame Counts Zn) AIS/SEF Seconds Qn) Errored Seconds Type A Hn) Frame Errors Jn) Degraded Minutes In) Error Free Seconds Rn) Reset Registers X) exit this screen [1,1] DCSU 2911 >

When a P is entered from th e following

Status Data Summary

Performance/Status Menu 24 hour T1 Performance

displays.

Performance/Status Menu

.

, the

When one of the following options from the

Menu (Data Summary)

is selected, the previous 24-hour’s data is

displayed in 15-minute increments for a total of 96 blocks of time.

NTER

E

Press

Table 3-9

Command Description

E U

B

S

3-16

Performance/Status Parameters

n

Errored Seconds (ES): A second with one or more CAS or FAS defects. Unavailable Secon d s (UAS): Counted for every second in which an Una vailable Signal State

occurs with the onset of 10 contiguous SES errors. It is also defined as the number of seconds a service is unava ilab le due to a Los s of Fra me (LOF) cond ition. The UAS cond ition is stopped when the failure condition clears.

Bursty Seconds (BES): A second having between 2 and 319 CRC-6 (Cyclical Redundancy Check) error events.

Severely Errored Seconds (SES): This error counts one-second intervals with an AIS or CRC error.

to exit these screens.

Verilink DCSU 2911 User Manual

Performance/Status

Command Description

L

n

F

n

D

n

O

n

A

n

C

n

M

n

Z

n

Q

n

H

n

J

n

I

n

R

n

X Exit the 24-hour Performance Data screen

Loss of Signal (LOS) Seconds: A second during which the DCSU is in a Loss of Signal state. LOS is declared upon detecting 175 consecutive zeros, it is cleared with the receipt of the next 1 bit.

Severely Errored Framing (SEF) Seconds: Those seconds in which two or more framing bit errors occur within a 3-millisecond period. In ESF mode, this interval may or may not coincide with an ESF multiframe.

Loss of Frame (LOF) Seconds: An LOF alarm is declared when a 3-second interval of continuous Out Of Frame (OOF) or Loss Of Signal (LOS) state is detected. If at least 10 seconds elapse without an LOS or LOF erro r, the L O F al arm is cleared.

Out of Frame (OOF) Seconds: A condition when any three of four consecutive frame bits received from the T1 line are incorrect.

Alarm Indication Signal (AIS) Seconds: A count of one-sec o nd intervals containing one or more AIS defects. AIS is an unframed All-Ones bit pattern that indicates an alarm condition exists upstream in a circuit leading to the downstream equipment. This is also called an All-Ones Keep-Alive or Blue Al ar m Signal (as sent ) or R ed Ala rm (a s re ceived ). An AIS def ect is declared when there are 3 or fewer zeros in 512 bit times and there is an LOF defect. It is cleared when there are 3 or more zeros in two frames or the LOF defect no longer exists.

Controlled Slip Seconds : This err or ind icates tha t in a one-s econd interv al one o r more slip events occurred. An ac c ura te co u nt of controlled slips that occur can only be made at the terminating network element where the slips take place.

The current version of the firmware does not support this feature.

Loss of Frame Counts: An accumulation of the number of times a Loss of Frame alarm is declared.

AIS/SEF Seconds: Displays info rmation on the AIS and SEF errors.

• AIS: An unframed All-Ones bit pattern that indicates that an alarm condition exists upstream in a circuit leading to the downstream equipment. This is also called an AllOnes Keep-Aliv e or Blu e Ala r m Signal (as sent) or Red Ala rm (a s re ce iv ed ) .

• SEF: The seconds in which two or more framing bit errors occur within a 3-millisecond period. In ESF mode, this interval may or may not coincide with an ESF multiframe.

Errored Seconds Type A: This error occurs when one Code Violation Path (CV-P) error and no AIS defects occur in a second. Controlled Slips are not included in this parameter.

Frame Bit Error (FE): An error in the rece ived fra mi ng b it pattern and the nu mber o f whole seconds that a framing bit error has occurred.

Degraded Minutes (DM): This error occurs when the Bit Error Rate (BER) threshold of10 exceeded in a 60-second period.

Error Free Second s: A second with no detected errors. Reset Registers: Use this option to clear out all counts and reset all registers to zero for a

particular port.

DCSU T1 Craft Interface

-6

is

Net Port Alarm Threshold Status Submenu

Enter T from the

Performance/Status Menu

Alarm Threshold Status Menu

intervals set f r o m th e

Menu

obtained by typi n g th e comm a nd A from the

Net Port Alarm Threshold Configuration

to access the

. This menu shows the threshold

Main Menu

Net Port

.

It also displays the counts for each type of alarm. When the alar m count exceeds its threshold value set in the

Threshold Configuration Menu

Verilink DCSU 2911 User Manual

YYYY

, a (

) displays after the count.

Net Port Alarm

3-17

DCSU T1 Craft Interface

Figure 3-11 DCSU 2911 Net Port Alarm Threshold Status Menu

-- DCSU 2911 NET PORT ALARM THRESHOLD STATUS MENU - PORT 1 PORT 2 PORT 3 PORT 4 LOF counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 3 0 0 0 LOS counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 3 0 0 0 RAI counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 1 0 0 0 AIS counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 1 0 0 0 BPV counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 1 0 0 0 ES 15min counts(exceeded) 0(N) 0(N) 0(N) 0(N) ES 24hr counts(exceeded) 0(N) 0(N) 0(N) 0(N) SES 15min counts(exceeded) 0(N) 0(N) 0(N) 0(N) SES 24hr counts(exceeded) 0(N) 0(N) 0(N) 0(N) X) exit this screen [1,1] DCSU 2911 >

Net Port Alarm Menu

Display the

Main Menu

the

Net Port Alarm Menu

The

Net Port Alarm Menu

(Figure 3-1).

contains a list of command s that bring

by typing the command A from

up additional alarm-related submenus (Figure 3-12).

Figure 3-12

Table 3-10

Command Description Options

DCSU 2911 Net P o rt Alarm Menu

-- DCSU 2911 NET PORT ALARM MENU -N) NMS Address: 128.0.0.0 A) Card Alarm Reporting: NO C) Configure Thresholds S) Alarm status M) enable alarm monitor O) Display Alarm Buffer Tn) Set Default Thresholds X) exit this screen

[1,1] DCSU 2911 >

Net Port Alarm Menu Parameters

N NMS (Network Management System) Address: Use this option to set the

ACP address (the address of the PC that will rec eive the alarms). Though this address is significant for Node Manager, it is not important for the Craft interface.

A Card Alarm Reporting: Use this option to enable or disable cards from

sending alarms .

Address for alarm destination such as:

128.0.0.0 Yes or No

(Y/N)

3-18

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

Command Description Options

C Configure Thresholds: To disable any or all alarm conditions, enter a

threshold value of 0. To enable a condition, specify any non-zero threshold value.

S Alarm Status: Displays the counts and intervals of the LOF, LOS, RAI, AIS,

BPV, ES, and SES registers.

Refer to Table

3-11 for

details on the configuration parameters.

R) Resets the

counters Options: R) Resets Counters: Restarts the values of the LOF, LOS, RAI, AIS, BPV, ES

15 minute, ES 24 hours, SES 15 minute, and SES 24 hour counters. It resets their values to 0.

X) Exits the Net Port Alarm Threshold Status Menu

M Disable/Enable Alarm Monitor: Use this option to either activate or

deactivate monitoring shelf alarms.

O Display Alarm Buffer: Displays major and minor alarms.

Minor: These alarms do not affect traffic along the networ k line. Major: These alarm s indicate that performance is se riously affected, for

example, a network line failure. It prevents data from being reliably transmitted across the circuit.

This option also shows any alarms that have been cleared.

Tn Set Default Thresholds: Use this option to load the factory default

threshold settings.

X Exit the Net Port Alarm Menu

X) Exits the

menu

Toggles

between

Enable and

Disable

Yes or No

(Y/N)

Verilink DCSU 2911 User Manual

3-19

DCSU T1 Craft Interface

Net Port Alarm Threshold

To display the

Submenu

Net Port Alarm Threshold Configu r ati on

, type the command C from the

Configuration Submenu

Figure 3-13 DCSU 2911 Net Port Alarm Threshold Configuration Menu

-- DCSU 2911 NET PORT ALARM THRESHOLD CONFIGURATION MENU - PORT 1 PORT 2 PORT 3 PORT 4 Pn) Alarm Reporting NO NO NO NO Fn) LOF threshold 3 3 3 3 LOF interval 3 3 3 3 Ln) LOS threshold 3 3 3 3 LOS interval 3 3 3 3 Rn) RAI threshold 1 1 1 1 RAI interval 1 1 1 1 An) AIS threshold 1 1 1 1 AIS interval 1 1 1 1 Bn) BPV threshold 1 1 1 1 BPV interval 1 1 1 1 En) ES 15min threshold 900 900 900 900 ES 24hr threshold 86400 86400 86400 86400 Sn) SES 15min threshold 900 900 900 900 SES 24hr threshold 86400 86400 86400 86400 In) BER threshold DISABLE DISABLE DISABLE DISABLE X) exit this screen [1,1] DCSU 2911 >

Net Port Alarm Menu

.

Configure

Thresholds

While the thresholds, you can use the

Configuration Menu

Performance/Status Menu

Net Port Alarm Threshold

to set your own alarm thresholds and

reflects industry standard

intervals. To view and modify your alarm thresholds, enter C from the

Port Alarm Menu Menu

appears. Use this menu to set th e mo nitoring interval for

Net Port Alarm Threshold Configuration

. The

Net

several types of alarms and the alarm threshold for errored seconds within the monitorin g interval.

For example, if the LOF interval is set to 100 seconds, and the LOF threshold is set to 5 seconds, then an alarm will be sent if more than 5 LOF errored seconds occur during a 100-second interval. The errored count is reset to zero after the end of the interval, unless there is an alarm condition and the first second of the next interval is also errored. In this case, the alarm state will continue until a new interval contains no errors during the first second.

NOTE: To disable any or all alarm conditions, enter a threshold value of 0.

To enable a condition, spe cify any non-zero threshold value. Figure

3-13, Net Port Alarm Threshold Configuration Menu, presents the

default values for all the al ar m conditions.

3-20

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

Following is a brief description of the configure threshold parameters:

Table 3-11

Command Description Options

Pn Alarm Reporting: When alarm reporting is en abled, it will convey an y

Fn Loss-of-Frame (LOF) Threshold/LOF Interval: Use this option to indicate an

Ln Loss of Signal (LOS) Threshold/LOS Interval: Use this option to indicate an

Rn Remote Alarm Indication (RAI) Threshold/RAI Interval: Use this option to

Net Port Alarm Threshold Configuration Menu Parameters

messages indicating alarms for each port. These alarms are declared to both the Craft interface as well as the Node Manager (if used). If this option is set to No, even if alarm reports for individual ports are requested, they will not be reported. The LEDs will still turn amber or red in an alarm condition. This option is best set to No while setting up or reconfiguring your node, and then set to Yes during normal operation.

interval that is larger than the threshold.

indicate an interval that is larger than the threshold.

Yes or No (Y/N)

Threshold: 1—86400 0 to disable

Interval: 3—86400 seconds

Threshold: 1—86400 0 to disable

Interval: 3—86400 seconds

Threshold: 1—86400 0 to disable

An Alarm Indication Signal (AIS) Threshold/AIS Interval: Use this option to

indicate an interval that is larger than the threshold.

Bn Bipolar Violation (BPV) Threshold/BPV Interval: Use this option to indicate

an interval that is larger than the threshold.

En Errored Seconds (ES) 15 min. Threshold/ES 24 hr. Threshol d: An ES alarm

indicates a second with one or more errors.

Interval: 1—86400 seconds

Threshold: 1—86400 0 to disable

Interval: 1—86400 seconds

Threshold: 1—86400 0 to disable

Interval: 1—86400 seconds

15 minute Threshold: 1—900 0 to disable

24 hour Threshold: 1—86400 0 to disable

Verilink DCSU 2911 User Manual

3-21

DCSU T1 Craft Interface

Command Description Options

Sn Severely Errored Second (SES) 15 min. Threshold/SE S 24 hr. Threshold:

Select a thres hold level.

-9

In Bit Error Rate (BER) Threshold: Select a threshold level. Selecting 10

report more errors than 10

X Exit the Net Port Alarm Threshold Configuration Menu

-4

.

will

15 minute Threshold: 1—900 0 to disable

24 hour Threshold: 1—86400 0 to disable

Threshold:

1) DISABLE

2) 10E-4

3) 10E-5

4) 10E-6

5) 10E-7

6) 10E-8

7) 10E-9

Display Alarm

Buffers

To display the alarm buffer, enter O in the The alarm buffer shows all major and minor alarms that have occurred at each port. When an alarm is cleared, the time stamp changes to reflect the time the alarm was cleared.

Figure 3-14 Alarm Buffer

[1,1] DCSU 2911 > o DCSU 2911 [1,1] AIS Threshold Cleared port 1 11-09-96 18:37:17 DCSU 2911 [1,1] AIS Minor Alarm port 1 11-09-96 18:36:33 Press enter to continue

When finished reviewing the alarm informa tion, enter X to return to

Main Menu

the alarm was reported on t he DCS U 2911 in Shelf 1, Slot 1 at 6:38 pm. It was caused by errors exceeding the AIS Threshold at port 1 of this application module.

Manufacturing Info

To display information on the firmware versions and CIM types, choose I from the screen displays.

Figure 3-15 Manufacturing Information

MANUFACTURING INFORMATION Main Card CIM Revision RM) 1 RC) Date DM) 10/14/96 DC) 11/10/96 Serial number SM) 00594698 SC) 00486749 Manuf. Part No. MM) 310101776002 MC) 3111017323 Cage Code CM) OJE20 CC) OJE20 Type TM) DUAL CSU TC) CIM29003 Press enter to continue

Net Port Alarm Menu

.

. For example, in the sample display above, a major

Main Menu

Manufacturing Information

. The

3-22

Verilink DCSU 2911 User Manual

DCSU T1 Craft Interface

System Log Off

Figure 3-16

System Log Off

[1,1] DCSU 2911 > x LOGGED OFF YOUR PASSWORD?

NOTE: The Manufacturing Information window provides useful

information on the Dual CS U module. For problems wi th your module, you may need to pro vide Cu st om er Serv ic e with th e information that displays in this menu.

When done configuring the DCSU module using the Craft interface, use X from the

Main Menu

to log off.

You can now either exi t the termi nal window c ompletely o r re-ente r the Craft interface by typing the password.

Verilink DCSU 2911 User Manual

3-23

DCSU T1 Craft Interface

3-24

Verilink DCSU 2911 User Manual

Chapter

4

DCSU 2911 E1 Craft Interface

This chapter describes how to config ure, operate, and test the DCSU 2911 E1 parameters usin g t he Craf t interface. If you are connecting to T1 circuits, ref e r to Chapter 3, DCSU 2911 T1 Craft

Interface. If you are using an NCM 2000 on the shelf, refer to the NCM 2000 User Manual.

The Craft interface is accessible via a direct cable connection from the front panel to an ASCII terminal or PC running a terminal emulator program. The DCSU 2911 ASCII terminal interface is not supported via Telnet.

NOTE: There may be options displayed on the ASCII screen that will not be

usable for your particular equipment configuration. Also, note that the ASCII terminal interface does not have an error checking facility. Therefore, be extremely careful about what parameters or data you enter at the prompts.

The following major functions are available through the ASCII interface:

Logging On

•

Administering nodes

•

Configuring the network ports, CPE ports, and timing parameters

•

Performing diagnostics on network and CPE ports

•

Evaluating perf or ma n ce an d s ta t us

•

Monitoring alarms

In addition to the ASCII terminal interface, yo u can use Verilink’s Node Manager—an interactive graphical user interface (GUI) management software package—to configure the appl ications module. For more information, see the Node Manager for Windows

95 User Manual.

1. To access the DCSU 2911 for the first time, at the

NTER

prompt, press Until you change the password, the

password. If you have changed the default password, then type the correct password (up to 8 characters, including spaces). The screen displays placeholders ( the password. Press

E

.

NTER

E

key is the default

******

NTER

E

.

PASSWORD

) as you type

Verilink DCSU 2911 User Manual

4-1

DCSU 2911 E1 Craft Interface

In the screen displayed

•

Slots containing DCSU modules display a U at the intersection of rows and columns designating the shelf/slot location of the DCSU module.

•

In Figure 2-1, the in slot 1. The currently accessed module is indicated by the square brackets ( that is the node master.

Figure 4-1 ACE Controller Menu

(Physical Location of Modules) Node “map

-- VERILINK ACE CONTROLLER at [1,1]: FW Rev 1.44, Dec 11 1996 -Site Name: Access level: 4 <- SLOT -> SHELF 1 2 3 4 5 6 7 8 9 10 11 12 13 0 - - - - - - - - - - - - 1 D [*U] 2 - - - - - - - - - - - - 3 - - - - - - - - - - - - 4 - - - - - - - - - - - - 5 - - - - - - - - - - - - 6 - - - - - - - - - - - - 7 - - - - - - - - - - - - KEY: *=CONTROLLER N=NCM Q=QUAD M=IMUX A=DIDCSU P=DPRI U=DCSU S) shelf/slot O) node administration C) configuration D) diagnostics P) performance/status A) alarm B) circuit I) manufacturing info X) system log off [1,1] DCSU 2911 >

The letter surrounded by brackets (

[ ]

) indicates the location of the module that is referenced and modified via submenus of the

ACE Controller Menu (Main Menu)

.

On initial log in, brackets surround the module being used as the log-in access point.

The option S (shelf/slot) is used to move to a desired module in the node.

Main Menu

[ ]

). The asterisk next to the U indicates the DCSU 2911

Menu Heading Area

shows a DCSU 2911 ( design ated b y U)

Screen Key Letters

4-2

Command List

D a ta E n try P ro mpt

Main Menu

The

displays the following:

1. In the menu heading area, the location of the DCSU Controller (by shelf and slot,

Verilink DCSU 2911 User Manual

[1,1]

) and the firmware revision (

FW Rev

).

DCSU 2911 E1 Cr aft Interface

2. The physical location of the module—a node map (slot/shelf display table) in which the application modules occupying the slots are identified by their screen key letters.

3. A command list displayi ng the main categories of operations available to you.

4. A prompt for command entry in the data entry area.

To exit the ASCII screens, use the (Exit Menu) command can be used in the

X

(Exit Menu) command. The

Main Menu

and all

sub-menus.

Shelf and Slot Parameters

To access a DCSU 2911 module from the specify the Shelf/Slot address.

•

If the module slot address is al ready on the current shelf, enter the slot number, then press

•

If the module slot address is on a different shelf, enter the shelf number followed by a comma and then the slot number

NTER

1,3

(e.g.,

Table 4-1

Command Description Options

Shelf/Slot Designation

S Shelf: Use this field to select the shelf containing the DCSU 2911 you want

to access. Slot: Use this field to select the slot containing the DCSU 2911 you want

to access.

) then press

.

E

Main Menu

NTER

E

.

, enter S to

0–4

1–13 (Multi-line) 1–5 (Quint-line ) 1–2 (Dual-line)

X

NOTE: Each shelf in a node must have a unique shelf address. Otherwise,

there will be unpredicta ble behavior.

Controller Menu (Main Menu)

Table 4-2 Dual CSU 2911 ACE Controller Menu Commands

Command Description

S Shelf/Slot: Navigates from one card to another.

O Controller Administration Menu

CConfiguration DDiagnostics P Performance/Status

Use the following commands on the 2911 parameters:

Verilink DCSU 2911 User Manual

Main Menu

to set the DCS U

4-3

DCSU 2911 E1 Craft Interface

Command Description

A Alarm Threshold B Circuit Information

I Manufacturing Info

XSystem Log Off

Administration Menu

Enter O from the modify and manage system-wide parameters, such as changing

Main Menu

time or passwords.

NOTE: Set the time zone first before setting the time.

Figure 4-2 Controller (Node) Administration Menu

-- ACE CONTROLLER ADMINISTRATION MENU -Date/Time/Zone: 12-11-96 18:02:27 Node Address: [0.0.0.51] System uptime: 3:56:27 ACP bus: A T) set time D) set date Z) set time zone A) set node address R) reset card P) change password Q) query firmware I) change site name O) switch over permanent Y) switchover once B) change ACP bus X) main menu [1,1] DCSU 2911 >

Following is a brief description of the node administration parameters:

to use the

Administration Menu

to

4-4

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

Table 4-3

Command Description Options

Node Administration Parameters

T Set Time: Use this option to set the time for your node.

You must set the time zone before you set the time.

D Set Date: Use this option to set the date for your node. Enter the date

Z

A Set Node Address: This option to indicate the ACP node address (the

R Reset Card: This option reboots the card. Yes to Reset P Change Password: Use this option to assign a new password for a

(mm/dd/yy). Enter the day of the week (1=Sunday).

Set Time Zone:

Time can be specified for any of four time zones: Eastern Standard Time (EST), Central Sta ndard Time (CST), Mountain Standard Time (MST), or Pac ific Standard Ti m e (P ST ).

To set the time zone as Greenwich Mean Time) select Local Time. To use the custom option, enter positive or negative offset in hours

from Greenwich Mean Time. Th en e nter an ab breviation for the time zone (6 characters maximum).

Choose either

node address follows the same syntax conventions as the network IP address, but they are not the same). If you change the default address, make sure the first byte is in the range of 0-127. All other bytes can be values from 0 to 255. However, 0.0.0.0 is not a supported address.

privileged or unprivileged user.

Use this option to set the time zone for your node.

Yes

or No for the “daytime savings” option.

Time: hh:mm:ss

Date: mm/dd/yy

Time zone:

1) local time

2) EST

3) CST

4) MST

5) PST

6) custom Daylight Savi ngs

Time: Yes or No

Node address such as: WWW.XXX.YYY.ZZZ where WWW must be in the range of 0—127.

-- PASSWORD MENU -P) Privileged Password U) Unprivileged Password X) main menu [1,8] DCSU 2911 > p Enter New Privileged Password: Enter New Privileged Password again:

Privileged Password—Enter the new password and confirm it by reentering it. Use this option to view and change all the DCSU information, inc lud i ng changing equipment co n figurations.

Unprivileged Password—Enter the new pas swor d and confirm it by reentering it. With this password you can only view the information about the DCSU module, you cannot alter any configuration information assoc ia ted with this module.

Q Query Firmware: Use this option to display the firmware versions and

the status of the firmware versions for the A or B partitions.

I Change Site Name: Use this option to specify the site name for the

DCSU. All reports will contain this information and—in case of problems—will help identify the pr oblem location.

O Switch Over Permanent: Use this option to indicate partition A or B

and its corresponding firmware version when rebooting the module. Assign a permanent partition to boot from in case of power failure. Before choosing a parti tion, ensu re that a firm ware versio n exists on both partitions using the Query Firmware option above.

Y Switchover Once: Use this option for testing new firmware versions.

Use this option to change from partition A to B or vice versa. Though you can use this opti o n for diagnostics, indicate a permanent partition to boot from in case of a power failure.

Site name: Maximum of 20 characters

1) A

2) B

1) A

2) B

Verilink DCSU 2911 User Manual

4-5

DCSU 2911 E1 Craft Interface

Command Description Options

B Change the A CP communications bus: NOTE: This change requires

resetting the module.

X Exit the Administration Menu

Yes or No (Y/N)

Configuration Menu

Type C on the

Menu

.

Figure 4-3 DCSU 2911 Configuration Menu

-- DCSU 2911 CONFIGURATION MENU - PORT 1 PORT 2 PORT 3 PORT 4 In) In Service NO NO NO NO En) CRC4 NO NO NO NO Fn) Carrier Failure Alarm NO NO NO NO Sn) FASE Alarm Category MINOR MINOR MINOR MINOR Mn) Framing Mode 31 CHANNEL 31 CHANNEL 31 CHANNEL 31 CHANNEL Nn) Alarm Declare Time(sec) 0 0 0 0 Pn) Idle Pattern 0000 0000 0000 0000 Bn) Enable Inband NO NO NO NO Ln) Inband Timeslot 0 0 0 0

T) timing options X) exit this screen

[1,1] DCSU 2911 >

DCSU 2911 Configuration Menu

The

Main Menu

configuration values displayed.

to display the

appears with the default

DCSU 2911 Configuration

NOTE: For this manual, whene ver the ASCII screen is shown to indica te Port

Table 4-4 DCSU Configuration Menu Command Keys

Command Description Options

In In Service: This option places the port in service. Yes or No

En CRC4: Cyclic Redundancy Check (CRC4) is an error-checking algorithm

performed on digital transmissions. In simplified terms, on a frame-by-frame basis, a numerical value is derived from the data in the bit-stream at one end of transmission. When each frame reaches the receive end, the cyclic redundancy check is calculated again and compared with the value generated by the transmit-side data. Discrepancies indicate one or more transmission errors.

Fn Carrier Failure Alarm (CFA): CFA is an alarm sent from the node indicating an E1

port has exceeded the Loss of Frame and the Loss of Signal seconds threshold set in the Net Port Alarm Configurat ion Menu. When enabled, an alarm is generated at the node and an Alarm Indication Signal (AIS) is sent down stream to the other node.

4-6

1, Port 2, Port 3, Port 4, these ports are the Network Port 1, Network Port 2, CPE Port 1, and CPE Port 2, respectively.

(Y/N) Yes or No

(Y/N)

Yes or No (Y/N)

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

Command Description Options

Sn Frame Alignment Signal Error (FASE) Alarm Category: This option indicates the

number of FAS errors has exceeded 10 the FAS frame and bit 2 of the non-FAS frame.

A minor FASE alarm is indicated by a yellow light on the network LED. A major FASE alarm is indi cated by a red light on the netw ork LED, and the alarm rela y is activated.

Mn Framing Mode: Use this option to select the type of framing which matches the

E1 framing supplied by the carrier. Channel 31 is automatically selected as the inband signaling channel. Data

using this inba nd channel will be lost , so redesign any circuits using this channel before enabling the inband signaling.

Support for the CAS, CCS, and G703 framing modes is planned for a future release.

Nn Alarm Declare Time (sec): Use this option to indicate how many seconds will

elapse before a messag e regarding a problem displays.

Pn Idle Pattern: The idle pattern is a code transmitted when there is no user data

on the net. The entered value is converted into binary code.

Bn Enable Inband: This is not an E1 supported option.

Ln Inband Timeslot: Since Enable Inband is not an E1 supported option, this is also

not a supported option.

T Ti ming Options: Figure 3-4, Table 3-5, Figure 3-5, Table 3-6

-3

. A FAS bit error occurs in bits 2-8 of

1) MINOR

2) MAJOR

1) CAS

2) CCS

3) 31 CHANNEL

4) G703

0 .. 127 seconds 0 to disable

0 .. 15

X Exit this screen.

Timing Options Submenu

Figure 4-4 DCSU 2911 Configuration Menu (Timing Options)

-- DUAL CSU 2911 CONFIGURATION MENU (TIMING OPTIONS)- Current shelf timing source: Card 1, INTERNAL (PRIMARY) Source Synchronization Auto Restore PRIMARY PS) INTERNAL PA) NO SECONDARY SS) INTERNAL SA) NO TERTIARY TS) INTERNAL TA) NO R) Receive clock from shelf: NO X) exit this screen [1,1] DUAL CSU 2911 >

Display this men u by typi n g the command T from the top

Configuration Menu

. (See Figure 4-3.)

The following timing parameters can be chosen from the DCSU:

Verilink DCSU 2911 User Manual

4-7

DCSU 2911 E1 Craft Interface

Table 4-5 Dual CSU 2911

Command Description Options

PS Primary Synchronization: Choose one of the following as the primary

source for clock synchronization. Net 1: Network port 1 Net 2: Network port 2 External: External clock Internal: Internal clock Net 3: Equipment port 1 TT signal Net 4: Equipment port 2 TT signal

SS Secondary Synchronization: Use this option to specify an alternate source

of timing for synchronization. If t he primary source is unavailable, this source will be used.

Net 1: Network port 1 Net 2: Network port 2 External: External clock Internal: Internal clock Net 3: Equipment port 1 TT signal Net 4: Equipment port 2 TT signal

TS Tertiary Sy n ch ronization: Use th is o p tion to s p ec ify an alternate s ource of

timing for synchronization. If the pri m ary and secondary sources are unavailable, this sourc e will be us ed.

Net 1: Network port 1 Net 2: Network port 2

Timing Parameters

1) NET 1

2) NET 2

3) EXTERNAL

4) INTERNAL

5) NET 3

6) NET 4

1) NET 1

2) NET 2

3) EXTERNAL

4) INTERNAL

5) NET 3

6) NET 4

1) NET 1

2) NET 2

3) EXTERNAL

4) INTERNAL

5) NET 3

6) NET 4

External: External clock Internal: Internal clock Net 3: Equipment port 1 TT signal Net 4: Equipment port 2 TT signal

PA Primary Auto Restore: Choose

SA Secondary Auto-Restore : Ch oo s e

preference automatically if the clock in the node fails. Otherwise, choose

No

to synchronize to other sources (secondary, tertiary) or stay down. In case of a failure, sett ing up auto restore hel p s restore timing. If you have not set up auto-restore to the primary source because you believe that it is unstable; bu t yo u h a ve c ho s en a s ec o nd a ry so ur ce; after reboo ting, the module will use the latter as the source to restore timing to the module or shelf.

preference automatica lly if that clock in th e n od e fa ils . O therwise, choose

No

to synchronize to o ther sources (prima ry, tertiary) or stay down. Specifying a secondary source for clocking is useful for power failures that result in the failure of the primary automatic restore source. Restoring from a secondary source may take up to 60 seconds.

Yes

to resynchronize to the clock

Yes

to resynchronize to the clock

Yes or No (Y/N)

4-8

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

Command Description Options

TA Tertiary Auto Restore: Choose

preference automatica lly if that clock in th e n od e fa ils . O therwise, choose

No

to synchronize to other sources (primary, seconda ry) or stay dow n. Specifying a tertiary source for clocking is useful if a power failure results in the failure of the primary and secondary sources for automatic restore. Restoring from a tertiary source may take up to 90 seconds.

R Receive Clock from Shelf: Choose whether the DCSU will receive its timing

X Exit the Timing Options screen.

signal from another module in the shelf, or from an on-board timing source. See Figure 4-5, Figure 4-5.

Yes

to resynchronize to the clock

Yes or No (Y/N)

Alternate Timing Options Submenu

If the option, “Receive clock from shelf” h as been selected b y using the R command from the

Configuration Menu (Timing Options)

submenu, an additional set of param eters will be displayed. (Figure

4-5)

Figure 4-5 DCSU 2911 Configuration Menu (Timing Options)

-- DUAL CSU 2911 CONFIGURATION MENU (TIMING OPTIONS)- Current shelf timing source: Card 1, INTERNAL (PRIMARY) Source Slot Number Synchronization Auto Restore PRIMARY PC) 1 PS) INTERNAL PA) NO SECONDARY SC) 1 SS) INTERNAL SA) NO TERTIARY TC) 1 TS) INTERNAL TA) NO R) Receive clock from shelf: YES X) exit this screen [1,1] DUAL CSU 2911 >

The following additional timing parameters can be chosen when the “Receive clock from shelf” option has been chosen (the other available options are discussed in the previous table):

Table 4-6 Timing Parameters

Command Description Options

PC Slot number of the module to use as a primary timing source. MLS: 1—13

SC Slot number of the module to use as a secondary timing source. MLS: 1—13

TC Slot number of the module to use as a tertiary timing source. MLS: 1—13

QLS: 1—5 DLS: 1—2

Diagnostics Menu

Display the

Main Menu

Verilink DCSU 2911 User Manual

Diagnostics Men u

. (Figure 3-1.)

by typing the command D from the

4-9

DCSU 2911 E1 Craft Interface

Figure 4-6 DCSU 2911 Diagnostic Menu

-- DCSU 2911 DIAGNOSTICS MENU - PORT 1 PORT 2 PORT 3 PORT 4 Loop type NONE NONE NONE NONE Test Pattern NONE NONE NONE NONE Test Error Counter 0 0 0 0 Ln) Line Loop Pn) Payload Loop Rn) Local Loop Tn) Test Pattern An) Send LLB codes Bn) Send PLB codes En) Reset Test Counter X) exit this screen [1,1] DCSU 2911 >

Figure 4-7

Diagnostics Menu Parameters

Command Description Options

Ln Line Loopback (LLB): Use this option to test the network line from the

far-end node. With Line Loopb acks, inco ming signal s ar e loope d ar ound

1) DEACTIVA TE

2) ACTIVATE and sent back toward the network. The service provider or far- end node administrator can then determine if the network line is good.

CPE

Pn Payload Loopback (PLB): Use this option to test the CSU from the far-end

node. In this case, the data goes through the network line and the DCSU

DCSU Framer

E1

1) DEACTIVA TE

2) ACTIVATE framer before it is looped back toward the network.

CPE

Rn Local Loopback (RLB): Use this option if you want to test all of the CSU.

Also known as a Repeater Loopback, the data sent from the data

DCSU Framer

E1

1) DEACTIVA TE

2) ACTIVATE equipment passes through the CSU up to the network interface and back to the equipment without passing through the network line.

CPE E1

DCS Framer

4-10

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

Command Description Options

Tn Test Pattern: Use this option to indicate one of the following options:

None: This option indicates that no test pattern will be used. 3 in 24: The 3-in-24 ONEs test pattern consists of three pulses in every

24-bit sequence (100 01000 10000000 00000000). This stress test is useful for testing circuits under extremely low density conditions. This is mostly useful for T1 AMI.

QRSS: The Quasi-Random Signal Sequence limits the signal to a maximum of 15 zeros in a row. These signals contain a medley of 20bit words (except for more than 15 consecutive 0s). It repeats every 1,048,575 bits. Also, it contains high densi t y and low density sequences, and sequences that change from low density to high density and vice versa.

2N20-1: This patt ern tests circuits fo r equalization and timing. It is the same as QRSS, but without the 15 zeros restriction.

1/8: This pattern tests the ability of a circuit to support a pattern having the minimum ones density (each byte has the sequ ence—1000000). It helps discover a timing recovery problem. This is mostly useful for T1 AMI.

2N1 5-1: This pattern tests circuits for equalization and timing using an alternate pattern for jitter testing. The pattern repeats every 32,757 bits.

1) NONE

2) 3/24

3) QRSS

4) 2N20-1

5) 1/8

6) 2N15-1

7) ALL 0’S

8) 55 OCTET

(Daly)

9) ALL 1’S

All 0s: This pattern is composed entirely of framed zeros (00000000). It should only be used in conjunction with HDB3 framing.

55 Octet: This Daly 55 octet pattern tests circuits for line module and timing recovery. By rapidly transitioning from a long sequence of low density octets to high density octets, the circuit is stress tested.

All 1s: This pattern is composed entirely of framed ones (11111111). It stresses circuit s by m aximizing power consumption.

An Send LLB codes: 1) DEACTIVATE

2) ACTIVATE

Bn Send PLB codes: 1) DEACTIVATE

En Reset Test Counter: This option resets the test counter to 0. The

counter is automatically reset when changing patterns.

X Exit the E1 Port Diagnostics Menu

2) ACTIVATE

When finished configuring the port diagnostics par ameters, enter X

Main Menu

.

to monitor the func ti oning and

Performance/ Status Menu

to return to the

Use the

Performance/Status Menu

condition of the ports. The parameters in this screen count the various problems that occur in a given period of time. Performance information is logged in 15- minute intervals over a 24- ho ur period.

To access the enter P.

Verilink DCSU 2911 User Manual

Performance/Status Menu

from the

Main Menu

,

4-11

DCSU 2911 E1 Craft Interface

Figure 4-8 DCSU 2911 Performance/Status Menu

-- DUAL CSU 2911 PERFORMANCE/STATUS MENU - PORT 1 PORT 2 PORT 3 PORT 4 LOS NO YES YES YES LOF NO YES YES YES AIS Rx/Tx NO/NO NO/NO NO/NO NO/NO RAI Rx/Tx NO/NO NO/YES NO/YES NO/YES SLIP NO NO NO NO CRC4 NO NO NO NO BER NO NO NO NO RMAS NO YES YES YES C) display counters P) display performance data T) threshold status X) exit this screen [1,1] DUAL CSU 2911 >

Counter Submenu

From the displayed by typing the command C.

Figure 4-9 DCSU 2911 Counter Menu

-- DCSU 2911 COUNTER MENU - FE CRC FEBE HDB3V PORT 1 0 0 0 0 PORT 2 0 0 451 0 PORT 3 0 0 209 0 PORT 4 0 0 50 0

Rn) Reset counters X) exit this screen [1,1] DCSU 2911 >

This menu displays counts for the following:

•

FE—Frame Bit Error: An error in the received framing bit pattern counts and the number of whole seconds in which a framing bit error has occu rred.

•

CRC—Cyclic Redundancy Check: An error-checking algorithm performed on data transmissions. On a frame-by-frame basis, a numerical value is derived from the data in the bit stream at one end of transmission. When each frame reaches the receive end, the cyclic redundancy check is calculated again and compared with the value generated by the transmit-side data. Discrepancies usually indicate one or more transmission errors.

Performance/Status Menu

Counter Menu

, the

is

4-12

•

FEBE—Far End Block Err ors: Count s the CRC erro rs reported by the far-end node.

•

HDB3V—High Density Bipolar (order of 3) Violation indicates an HDB3 line decoding error.

Choose Rn (where n is the port number) to reset the counters. This command will return the values of the FE, CRC, FEBE, and HDB3V counters to zero.

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

Choosing X returns you to the Select P from the

Performance/Status Menu

Performance/Status Menu (Data Summary)

Figure 4-10 Performance/Status Menu (Data Summary)

-- DCSU 2911 PERFORMANCE/STATUS MENU -24hr E1 Performance Data Summary ES SES UAS LOF LOSS AISS PORT 1 0 0 9932 9931 9932 0 PORT 2 0 0 9968 9967 9968 0 PORT 3 0 0 9932 9931 9932 0 PORT 4 0 0 9968 9967 9968 0

En) Errored Seconds Un) Unavailable Seconds Sn) Severely Errored Seconds Fn) Frame Alignments Error Seconds Dn) SEF Seconds Bn) Background Block Error An) AIS Seconds Ln) LOS Seconds Cn) LOF Seconds On) OOF Seconds Rn) Reset Registers X) exit this screen [1,1] DCSU 2911 >

When one of the following options from the

Menu (Data Summary)

is selected, the previous 24-hour’s data is

displayed in 15-minute increments for a total of 96 blocks of time.

NTER

E

Press

to exit these screens:

Performance/Status Menu

to display the

.

Performance/Status

:

Table 4-7 Performance/Status Parameters

Command Description

En Errored Seconds (ES): A second with one or more CAS or FAS defects.

Un Unavailable Seconds (UAS): Counted for every second in which an Unavailable Signal State

occurs with the onset of 10 contiguous SES errors. It is also defined as the number of seconds a service i s unavailable due to a Loss of Frame (LOF) condition. The UAS condition is stopped when the failure condition clears.

Sn Severely Errored Seconds (SES): This error counts one second intervals with one or more

AIS defects or 320 or more CRC-4 errors.

Fn Frame Alignments Error Signal: This error occurs when the frame alignment threshold of

Dn Severely Erro red Framing (SEF) Seconds: Those seconds in which two or more framing bit

Bn Background Block Error: An errored block not occurring as part of an SES.

An Alarm Indication Signal (AIS) Seconds: A count of one-second intervals containing one or

Ln Loss of Signal (L OS) Seco nd s: A se cond dur ing whic h th e DCS U i s in a L oss o f S ign al s tate .

-3

errors in a given second is exceeded.

10

errors occur within a 2-millisecond period.

more AIS defects. AIS is an unframed All-Ones bit pattern that indicates an alarm condition exists upstream in a circuit leading to the downstream equipment. This is also called an All-O nes Keep -Ali ve o r Blue Alarm Signa l (a s sent) or Red Al arm ( as r eceiv ed). An AIS defect is declared when there are 3 or fewer zeros in 512 bit times and there is a LOF defect. It is cleared when there are 3 or more zeros in two frames or the LOF defect no longer exists.

LOS is declared upon detecting 175 consecutive zeros, it is cleared with the receipt of the next 1 bit.

Verilink DCSU 2911 User Manual

4-13

DCSU 2911 E1 Craft Interface

Table 4-7 Performance/Status Parameters

Command Description

Cn Loss of Frame (LOF) Seconds: An LOF alarm is declared when a 3-second interval of

continuous Out of Frame (OOF) or Loss of Signal (LOS) state is detected. If at least 10 seconds elapse without an LOS or LOF error, the LOF alarm is cleared.

On Out-of-Frame (OOF) Seconds: A condi tion wh en an y three of four cons ec u tive fra me b its

Rn Reset Registers: Use this option to clear out all counts and reset all registers to zero for a

X Exit the 24 hour Performance Data screen

received from the E1 line are incorrect.

particular port.

Net Port Alarm Threshold Status Submenu

Enter T from the

Alarm Threshold Status Menu

intervals set in the

Performance/Status Menu

Net Port Alarm Threshold Configuration Menu

which can be obtained by typing the command A from the

Menu

.

It also displays the counts for each type of alarm. When the alar m count exceeds its threshold value set in the

Threshold Configuration Menu

Figure 4-11 DCSU 2911 Net Port Alarm Threshold Status Menu

-- DCSU 2911 NET PORT ALARM THRESHOLD STATUS MENU - PORT 1 PORT 2 PORT 3 PORT 4 LOF counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 3 0 0 0 LOS counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 3 0 0 0 RAI counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 1 0 0 0 AIS counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 1 0 0 0 BPV counts(exceeded) 0(N) 0(N) 0(N) 0(N) interval 1 0 0 0 ES 15min counts(exceeded) 0(N) 0(N) 0(N) 0(N) ES 24hr counts(exceeded) 0(N) 0(N) 0(N) 0(N) SES 15min counts(exceeded) 0(N) 0(N) 0(N) 0(N) SES 24hr counts(exceeded) 0(N) 0(N) 0(N) 0(N) X) exit this screen [1,1] DCSU 2911 >

to access the

Net Port

. This menu shows the threshold

Main

Net Port Alarm

, a (Y) displays after the count.

Net Port Alarm Menu

4-14

Display the

Main Menu

the

Net Port Alarm Menu

The

Net Port Alarm Menu

. (Figure 4-1)

contains a list of command s that bring

by typing the comma n d A from

up additional alarm-related submenus. (Figure 4-12 )

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

Figure 4-12 DCSU 2911 Net Port Alarm Menu

-- DCSU 2911 NET PORT ALARM MENU -N) NMS Address: 128.0.0.0 A) Card Alarm Reporting: NO C) Configure Thresholds S) Alarm status M) Enable alarm monitor O) Display Alarm Buffer Tn) Set Default Thresholds X) exit this screen

[1,1] DCSU 2911 >

Following is a brief description of the alarm parameters:

Table 4-8 Net Port Alarm Menu Parameters

Command Description Options

N NMS (Network Management System) Address: Use this option to set

Verilink’s ACP address (which is the add r es s of the PC that will receive the alarms). Though this address is significant for Node Manager, it is not important for the Craft interface.

A Card Alarm Reporting: Use this option to enable or disable cards

from sending alar ms .

C Configure Thresholds: To disable any or all alarm conditions, enter a

threshold value of 0. To ena ble a condition, specify any non - zero threshold value.

S Alarm Status: Displays the counts and intervals of the LOF, LOS, RAI,

AIS, BPV, ES, and SES registers. Options: R) Reset Counters: Restarts the values of the LOF, LOS, RAI, AIS, BPV,

ES 15-minute, ES 24-hours, SES 15-minute, and SES 24-hour counters. It resets their values to 0.

X) Exit the Net Port Alarm Threshold Status Menu

M Disable/Enable Alarm Monitor: Use this option to either activate or

deactivate monitoring shelf alarms.

O Displ ay Alarm Buffer: Displays major and minor alarms.

Minor: These alarms do not affect traffic along the network line. Major: These alarm s indicate a condition where performance is

seriously affected, for example, a network line failure. It prevents data from being reliably transmitted across the circuit.

Address for alar m destination such as: 128.0.0.0

Yes or No (Y/N)

Refer to Table 3-9 for details on the configuration parameters.

Toggles bet ween Enable and Disable

This option also indicates any alarms that have been cleared.

Tn Set Default Thresholds: Use this option to load the factory default

X Exit the Net Port Alarm Menu

Net Port Alarm Threshold

threshold settings.

Display this men u by typi n g the command Tn from the

Alarm Menu

(Figure 4-12).

Configuration Submenu

Verilink DCSU 2911 User Manual

Yes or No (Y/N)

Net Port

4-15

DCSU 2911 E1 Craft Interface

Figure 4-13 DCSU 2911 Net Port Alarm Threshold Configuration Menu

-- DCSU 2911 NET PORT ALARM THRESHOLD CONFIGURATION MENU - PORT 1 PORT 2 PORT 3 PORT 4 Pn) Alarm Reporting NO NO NO NO Fn) LOF threshold 3 3 3 3 LOF interval 3 3 3 3 Ln) LOS threshold 3 3 3 3 LOS interval 3 3 3 3 Rn) RAI threshold 1 1 1 1 RAI interval 1 1 1 1 An) AIS threshold 1 1 1 1 AIS interval 1 1 1 1 Bn) BPV threshold 1 1 1 1 BPV interval 1 1 1 1 En) ES 15min threshold 900 900 900 900 ES 24hr threshold 86400 86400 86400 86400 Sn) SES 15min threshold 900 900 900 900 SES 24hr threshold 86400 86400 86400 86400 In) BER threshold DISABLE DISABLE DISABLE DISABLE X) exit this screen [1,1] DCSU 2911 >

Configure

Thresholds

While the thresholds, use the

Menu

To view and modify your alarm thresholds, enter C from the

Port Alarm Menu Menu

Performance/Status Menu

reflects industry standard

Net Port Alarm Threshold Configuration

to set your own alarm thresholds and intervals.

Net

Net Port Alarm Threshold Configuration

. The

appears. Use this menu to set th e mo nitoring interval for several types of alarms and the alarm threshold for errored seconds within the monitorin g interval.

For example, if the LOF interval is set to 100 seconds, and the LOF threshold is set to 5 seconds, then an alarm will be sent if more than 5 LOF errored seconds occur during a 100-second interval. The errored count is reset to zero after the end of the interval, unless there is an alarm condition and the first second of the next interval is also errored. In this case, the alarm state will continue until a new interval contains no errors during the first second.

NOTE: To disable any or all alarm conditions, enter a threshold value of 0.

To enable a condition, spe cify any non-zero threshold value. Figure

4-13, Net Port Alarm Threshold Configuration Menu, presents the

default values for all the al ar m conditions.

Following is a brief description of the configure threshold parameters (See Figure 4-10 for further explanations of the types of errors):

4-16

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

Net Port Alarm Threshold Configuration Menu Parameters

Command Description Options

Pn Alarm Reporting: Wh en alarm reporting is enabled, it will convey any

messages indic ating alarm s for ea ch port . Thes e alar ms ar e declar ed to both the ASCII interface as well as the Node Manager (if in use). If this option is set to No, even if alarm reports for individual ports are requested, they will not be reported. The LEDs will still turn yellow or red in an alarm condition. This option is best set to No while setting up or reconfiguring your node, and then set to Yes during normal operation.

Fn Loss-of-Frame (LOF) Threshold/LOF Interval: Use this option to indicate an

interval that is larger than the threshold.

Ln Loss of Signal (LOS) Threshold/LOS Interval: Use this option to indicate an

interval that is larger than the threshold.

Rn Remote Alarm Indication (RAI) Threshold/RAI Interval: Use this option to

indicate an interval that is larger than the threshold.

An Alarm Indication Signal (AIS) Threshold/AIS Interval: Use this option to

indicate an interval that is larger than the threshold.

Yes or No (Y/N)

Threshold: 1—86400 0 to disable

Interval: 3—86400 seconds

Threshold: 1—86400 0 to disable

Interval: 3—86400 seconds

Threshold: 1—86400 0 to disable

Interval: 1—86400 seconds

Threshold: 1—86400 0 to disable

Bn Bipolar Violation (BPV) Threshold/BPV Interval: Use this option to indicate an

interval that is larger than the threshold.

En Errored Seconds (ES) 15 min. Threshold/ES 24 hr. Threshold: An ES alarm

indicates a second with one or more errors.

Interval: 1—86400 seconds

Threshold: 1—86400 0 to disable

Interval: 1—86400 seconds

15 minute Threshold: 1—900 0 to disable

24 hour Threshold: 1—86400 0 to disable

Verilink DCSU 2911 User Manual

4-17

DCSU 2911 E1 Craft Interface

Command Description Options

Sn Severely Errored Second (SES) 15 min. Threshold/SES 24 hr. Threshold:

Select a threshold level.

In Bit Error Rate (BER) Threshold: Select a threshold level. Selecting

X Exit the Net Port Alarm Threshold Configuration Menu

-9

will report more errors than 10-4.

10

15 minute Threshold: 1—900 0 to disable

24 hour Threshold: 1—86400 0 to disable

Threshold:

1) DISABLE

2) 10E-4

3) 10E-5

4) 10E-6

5) 10E-7

6) 10E-8

7) 10E-9

Display Alarm

Buffers

To display the alarm buffer, enter O in the

Alarm Buffer

The occurred at each port. When an alarm is cleared, the time stamp changes to reflect the time the alarm was cleared.

Figure 4-14 Alarm Buffer

[1,1] DCSU 2911 > o DCSU 2911 [1,1] AIS Cleared port 1 11-09-96 18:36:50 DCSU 2911 [1,1] AIS Major Alarm port 1 11-09-96 18:36:33 Press enter to continue

When finished reviewing the alarm informa tion, enter X to return to

Main Menu

the alarm was reported on t he DCS U 2911 in Shelf 1, Slot 1 at 6:38 pm. It was caused by errors exceeding the AIS Threshold at port 1 of this application module.

Manufacturing Info

Figure 4-15 Manufacturing Information

MANUFACTURING INFORMATION Main Card CIM Revision RM) 1 RC) Date DM) 10/14/96 DC) 11/10/96 Serial number SM) 00594698 SC) 00486749 Manuf. Part No. MM) 310101776002 MC) 3111017323 Cage Code CM) OJE20 CC) OJE20 Type TM) DUAL CSU TC) CIM29001 Press enter to continue

To display information on your firmware versions and CIM types, choose I from the

Net Port Alarm Menu

.

shows all major and minor alarms that have

. For example, in the sample display above, a major

Main Menu

.

4-18

Verilink DCSU 2911 User Manual

DCSU 2911 E1 Cr aft Interface

System Log Off

Figure 4-16 System Log Off

[1,1] DCSU 2911 > x LOGGED OFF YOUR PASSWORD?

NOTE: The Manufacturing Information window provides useful

information on the DCSU module. For problems with your module, you may need to provide Customer Servic e with the information that appears in this menu.

When finished configuring the DCSU module using the ASCII terminal interface, type X from the

Main Menu

to log off. You are

returned to th e foll owing prompt .

You can now either exi t the termi nal window c ompletely o r re-ente r the Craft interface by typing the password.

Verilink DCSU 2911 User Manual

4-19

DCSU 2911 E1 Craft Interface

4-20

Verilink DCSU 2911 User Manual

Chapter

5

Interpreting Alarms

Troubleshooting

Controller card(s) poll the various modules for alarms. If alarm reporting is enable d for the node and for the module (s), the node controller card retr ieves and sen ds the alar m to the Craft interf ace, Node Manager, or an SNMP agent.

An alarm list is provided under th e alarms displays of the various options of the Craft interface, Node Manager, or SNMP.

Alarms can also be automatically sent to a specified printer by setting up the printer address in the various management utilities (Node Manager or similar SNMP) menus.

The alarm list displays the following information about alarms (This information may vary depending on the controller module and management method used):

•

Whenever the system power cycles and any module does a self-test

Figure 5-1 Alarm Buffer

[1,1] DCSU 2911 > o DCSU 2911 [1,1] AIS Major Alarm port 1 3-09-98 18:38:35 DCSU 2911 [1,1] AIS Threshold Cleared port 1 3-09-98 18:37:17 Press enter to continue

Module Type

Shelf/Slot Location

•

Power supply input is lost

•

A default or user-designated threshold is exceeded

•

A Yellow Alarm is received from the network (DS1)

•

An unframed all-ones or alarm indi cation signal (AIS) is received from the network

•

There is a loss of signal (LOS) or loss of frame (LOF)

•

A loopback is present

•

A module fails

•

A module is removed from the shelf

Alarm Description

Alarm Classification

Port

Alarm Date and Time

Verilink DCSU 2911 User Manual

5-1

Troubleshooting

Alarm Description

Alarm Classification

Problem Types

The alarm description colu mn l ists the text which is:

•

printed on the display

•

sent to the alarm printer (i f using Node Manager or SNMP agent)

•

saved to the alarm buffer/database

Verilink classifies alarms into the following severities:

•

Critical

•

Major

•

Minor

•

Warning

•

Info

•

Cleared

These classifications are further categorized into the following problem types:

•

LOS

•

LOF

•

Error

•

Call Setup

5-2

Verilink DCSU 2911 User Manual

What To Do About Alarms

Some alarms clear after the user-configured timeout has expired. Other alarms require co rrective action.

•

If an alarm has been cleared, no other action is required.

•

If there is a loopback present, unless you are intentionally testing, remove the loopback. (Only if the loopback is from your end. If the loop was initiated by your network service provider, check with their test facility before taking down the loop.)

•

For a Loss of Frame (LOF), you may have a telco or module problem. To test, do a Repeater Loopback (RLB) to test for LOF. If there is no LOF indicated by the test, the problem is with the telco.

•

For a Loss of Signal (LOS), check your router cables, power, and ports.

•

For a power-up self-test failure, reseat the module a few times to see if it will power up and pass the self test. If it does not pass after repeated self tests, replace the module.

Troubleshooting

Alarm Records

Every alarm record that displays is “active” in the database until you do something about it. Do the following with the alarm records:

•

Deactivating alarm records is a database management function. As long as an alarm is active, you can view it onscreen, using one of the management options of the Craft interface or Node Manager. When you deactivate an alarm, it’s still in the database, but not viewable on screen. Deactivated alarms can be archived, printed, or deleted.

•

Archiving an alarm record stores it to a disk file you specify.

•

Printing an alarm record p rints a copy of all active and deactivated alarms.

•

Deleting an alarm record re moves it from the database. To delete an alarm, first d eactivate it.

Verilink DCSU 2911 User Manual

5-3

Troubleshooting

Alarm List

Table 5-1 DCSU Alarms

Alarm Classification/

Alarm Type Description

Fault conditions can result in critical, major, or minor alarms. In addition, a fault condition can also result in a Carrier Failure Alarm (CFA).

Critical Alarms

Carrier Failure Alarm (CFA)

Major Alarms

Alarm Type Description

Loss of Signal (LOS)

A critical alarm indicates the node or node components have failed. Only the loss-of-clock (LOC) error condition triggers a critical alarm. This error causes the system clock to fail and prevents data from being transmitted.

Loss-of-clock causes the System LED to flash red. It causes a major alarm and activates the relay contacts on the rear connector panel of the CIM.

A carrier failur e alarm (CFA) is activated when major alarm error conditions occur, causing the port to disrupt traffic along the line. When the CFA is activated, the line is not useable—preset by the user—for 2 to 60 seconds. All traffic is removed from the line. The alarm remains active until the port is reconfigured.

A major alarm fault condition seriously affects performance. It prevents data from being reliably transmitted across the circuit. When a major alarm is declared, the module sends a message to the Craft interface and Node Manager, lights the appropriate LED indicator, and trips the alarm relay. The following error conditions must persist for at least one second for a major alarm to be declared.

This condition occurs when the network signal is absent, and exceeds a predefined loss-of-signal threshold. An LOS alarm on a network line is declared when more than 175 consecutive zeros are detected on input to the receiving equipment. An LOS after one continuous second causes a major alarm and activates the relay contacts on the rear connector panel of the CIM.

This alarm activates the CFA if the LOS is active from 2 to 45 seconds (as defined by the user).

5-4

Alarm Indication Signal (AIS)

Loss of Frame (LOF) (T1 Only)

Using an unframed all-ones bit pattern, an AIS alarm indicates that an alarm condition exists upstream in a circuit leading to the downstream equipment. This is also called an all-ones Keep-Alive or Red Alarm Signal. An AIS defect is declared when there are 3 or fewer zeros in 512 bit times and an LOF defect. It is cleared when there are 3 or more zeros in two frames or the LOF defect no longer exists.

This alarm activates the CFA if the AIS is active from 2 to 45 seconds (as defined by the user).

This alarm is declare d wh en a 3-second interval of continuous Out-OfFrame (OOF) or Loss-Of-Signal (LOS) state is detected. An LOF alarm is cleared when at least 10 seconds of continuous non-LOS or non-LOF condition exists.

This alarm activates the CFA if the LOF is active from 2 to 45 seconds (as defined by the user).

Verilink DCSU 2911 User Manual

Alarm Classification/

Alarm Type Description

Troubleshooting

Loss of Frame Alignment (E1 Only)

Frame Alignment Signal Error Rate (FASER) (E1 Only)

Loss of TS16 Multiframe Alignment (LOMA) (E1 Only)

This condition occurs when three consecutive in-error frame alignment signals (words) are r eceived, or when Bit 2 in a fr am e containing the nonframe alignment signal (NFAS word) is rece ive d i n er ror three consecutive times.

The condition clears when the following events are s atisfied:

• The frame alignment signal is detected in frame N.

• The non-frame alignment signal 1 is detected in frame N+1.

• The frame alignment signal is detected in frame N+2. Loss-of-frame alignment (LOFA) after one continuous second causes a

major alarm and activates the relay contacts on the rear connector panel of the CIM.

This alarm activates the CFA if the LOFA is active from 2 to 45 seconds (as defined by the user).

This alarm indicates that the FAS error ra te excee d s a user -selectable threshold of 10

-3

or 10-6 for at least four seconds. This user-selectable alarm can be designated as a major or minor alarm and activates the relay contacts on the rear connector panel of the CIM.

This alarm activates the CFA if the FASER is active from 12 to 60 seconds (as defined by the user).

This condition occurs when the module cannot find the multiframe alignment signal (MAS) pattern on TS16 when enabled for CAS signaling.

This alarm activates the CFA if the LOMA is active from 2 to 45 seconds (as defined by the user).

Minor Alarms

Minor alarm fault conditions do not affect traffic along the network line. They generate a minor alarm.

Alarm Type Description

Power Supply Missing

In redundant power supply configurations, this alarm indicates that one of the redundant power supplies has failed or has been removed from the shelf.

Remote Alarm Indication (RAI)

RAI. This alarm indicates that the remote end is in a state of alarm. A Remote Alarm or Remote Alarm Indication is the alarm a receivi ng channel bank or multiplexer sends to the other end of th e circuit whe n it detects a Loss Of Signal or Loss Of Frame. There is a 2- to 3-second integra t ion period upon detection of LOS or LOF before a Yellow Alarm is sent to the far-end equipment. This condition is also referred to as a Yellow Alarm.

Bipolar Violation (BPV) Threshold

Severely Errored Second (SES)

A violation of the T1 bipolar AMI transmission pattern requiring successive Ones (pulses) to be transmitted as pulses of opposite polarities. A BPV alarm indicates transmission errors. However, B8ZS patterns contain intentional BPVs that are not counted as errors.

15 min. Threshold/SES 24 hr. Threshold—An SES alarm is declared when 320 or more ESF error events occur within one second, or when an OOF (Out-Of-Frame Second) occurs. An SES is a one-second period cont aining greater than 30% errored blocks (more than 1 errored bit) or at least one Severely Disturbed Period (SDP).

Bit Error Rate (BER) Threshold

The Bit Error Rate is the ratio of the number of bit errors received to the total number of bits transmitted in a given interval. The BER threshold indicates the level above which a CSU alarm is gen erated and reported.

Verilink DCSU 2911 User Manual

5-5

Troubleshooting

Interpreting Front Panel LEDs

The LED indicators on the front panel of the DCSU 2911 module display errors caused by T1 line or data terminal equipment problems. The errors are reflected in the alarm status and the performance/status menus in the Craft inter f ace. Node Manager also has an alarm display.

There are five LEDs on the front panel:

•

Two T1 port LEDs

•

Two data port LEDs

•

One system LED

Figure 5-2 DCSU Front Panel

DCSU

2911

Network Port LEDs

21

NET

LOCAL

Port LEDs

The network port LEDs display minor, major, and critical alarm conditions detect ed on the network line. Net LE D 1 and Net LED 2

1

DAT A

2

SYS

System LED

PRI EXT

MANAGEMENT

display alarm status for their respective network ports. Table 4-1 provides a brief description of the network port LED states:

Table 5-2 Network LED Indicators

State Color Alarm Class Action/Possible Error Condition

Solid Green All okay None Solid Amber Diagnostic

Flashing Amber

and Red

mode with no errors

Yellow Alarm Check the diagnostic performance status or alarm status

None

displays. The Yellow Alarm indicates that the unit is receiving an RAI Signal, which indicates that the far end is not receiving a signal from the near end.

Solid Red Major Check the performance status or alarm status display. Loss of

Signal (LOS) from far end transmit s all-ones.

Off None None Port is not enabled.

5-6

Verilink DCSU 2911 User Manual

Troubleshooting

Data Port LEDs

Data Port LEDs displa y a larm c ondi tio ns detec ted at th e data ports. Data Port LEDs 1 a nd 2 display the status for their respective po rts.

Table 5-3 Data Por t LED I nd ic a tor s

State C olor Alarm Class Possible Error Condition

Solid Green All okay None. (DTE connected and in sync) Solid Red Major Port active; Signal designated for LOS is not detected. For

example, if you have ena bled D T R mo ni t oring (to detect a Loss of Signal) and you disconnect the cable, a major alarm is declared.

Solid Amber Diagnostic

Off None None Port is not enabled.

System LED

mode

The System LED displays node controller assignments and node

Port is active and in loopback.

communication conditions.

Table 5-4 System LED Indicators

State Color Alarm Class Possible Error Condition

Solid Green None Module is okay and another module is the shelf controller. Solid Red Critical System failure. You may need to reseat the card in the shelf. Off None None Module is not on; no power. Flashing Green None The module is acting as the controller (that is, it is the shelf

master controlling the ACP bus usage in the shelf).

Verilink DCSU 2911 User Manual

5-7

Troubleshooting

5-8

Verilink DCSU 2911 User Manual

Index

Numerics

1/8

test pattern 3-14, 4-11

2N1 5-1

test pattern

2N20-1

test pattern

3 in 24 55 Octet

test pattern 3-14, 4-11

3-14, 4-11 3-14, 4-11

3-14, 4-11

A

ACE Controller Menu AIS

3-17, 3-19, 3-21, 4-13, 4-15, 4-17

AIS/SEF Seconds alarm buffer

displaying 3-19, 4-15

alarm buffers

displaying

Alarm Indication Signal alarm monitor

disable 3-19, 4-15 enable

alarm status alarm threshold configuration

parameters 3-21, 4-17

alarms

major minor reporting

All 0s

test pattern

All 1s

test pattern 3-14, 4-11

ASCII terminal interface

ACE Control ler Menu 3-2, 4-2 alarm declare time change ACP communicat ions bus change site name Configuration Menu (FDL Options) Submenu Configuration Menu (Timing Options) Submenu

3-22, 4-18, 5-1

3-19, 4-15

3-21, 4-17

3-14, 4-11

3-2, 4-2

3-17

3-17, 3-21, 4-13, 4-17

3-8

3-6, 4-6

3-5, 4-5

10

date

3-5

DCSU Configuration Me nu facility data link (FDL) enable FDL Mode FDL standard frame format front panel management port idle pattern

3-9

3-7

3-9

3-6

3-8

1-2

3-9

3-

in service line build out line coding main menu main menu commands network density network initiated loop node address Node Administration Menu node map Performance Report Message (PRM) performance report message command-response query firmware reset card send-receive LL B BOP send-receive PLB BOP switch over once switch over permanent time time zone timing

3-6, 3-7

3-7

3-2, 4-2

3-3

3-8

3-5

3-4

3-3, 4-3

3-8

3-9

3-5

3-10 3-10

3-6, 4-5

3-5, 4-5

3-5

primary synchronization 3-10, 4-8 secondary synchronization 3-11, 4-8 tertiary synchronization 3-11, 4-8

timing options

auto restore

primary 3-11, 4-8 secondary tertiary

3-8

3-11, 4-8

3-11, 4-9

B

Background Block Error BER

3-22, 4-18

BES

3-16

Bipolar Violation bipolar violations

counters 3-15

Bit Error Rate BPV

3-15, 3-19, 3-21, 4-15, 4-17

Bursty Seconds

3-21, 4-17

3-22, 4-18

3-16

4-13

C

Cables card alarm

change sit e name Configuration Menu (FDL Options) Submenu Configuration Menu (Timing Options) Submenu

2-2

reporting 3-18, 4-15

3-5, 4-5

3-9

3-10

configuring

Verilink DCSU 2911 User Manual

Index-1

thresholds

Connecting Terminal connector interface module (CIM)

specifications 1-3 T1

1-3

connector interface module (CIMS)

E1 1-3

Controlled Slip Seconds counter

bipolar violations 3-15 Cyclic Redundancy Check Extended Superframe Format FEBE Frame Bit Error HDB3V

counters

resetting 4-15

CRC

3-15, 4-12

3-19, 4-15

2-2

3-17

3-15, 4-12

3-15

4-12

3-15

4-12

D

daisy-chaining data port LEDs date

3-5

default thresholds default values

password

Degraded Minutes displaying

alarm buffers

displaying alarm buffers DM

3-17

Dual CSU 2911 Overview

1-2 5-7

3-19, 4-15

3-1, 4-1

3-17

3-22, 4-18, 5-1

3-19, 4-15 1-1

E

E1/T1 LED indicators Error Free Seconds Errored Seconds Errored Seconds Type A ES

3-16, 3-19, 3-21, 4-13, 4-15, 4-17

ESF

3-15

EXT

1-2

Extented Superframe Format

counters

3-15

5-6

3-17

3-21, 4-17

3-17

F

FCC references FE

3-15, 3-17

FEBE

4-12

Frame Alignments Error Signal Frame Bit Error

counters

front panel LEDs front panel management ports

ii

4-13

3-17

3-15

5-6

1-2

I

in-band (backplane) management extension port

1-2

Installation

2-1

L

LEDs

front panel

Line Loopback LLB

3-13, 4-10

Local Loopback LOF

3-17, 3-19, 3-21, 4-14, 4-15, 4-17

logging on loopbacks

Line Loopback Local Loopback Payload Loopback

LOS

3-17, 3-19, 3-21, 4-13, 4-15, 4-17

Loss of Frame Counts Loss of Signal Loss-of-Frame Loss-of-Frame Seconds

5-6

3-13, 4-10

3-1, 4-1

3-13, 4-10

3-17

3-21, 4-17

3-17, 4-14

M

main menu

parameters

major

alarms 3-19, 4-15

menus

nodeadministration

menus performance/status minor

alarms 3-19, 4-15

3-3, 4-3

3-4, 4-4

3-16, 4-13

N

net port alarm menu

parameters

Network Management System node address node administration

menu 3-4, 4-4 parameters

Node Administration Menu Node Manager Craft Port Access Window Node Manager interface connection node map None

test pattern

3-18, 4-15

3-5

4-5

3-4

1-2

3-2, 4-2

3-14, 4-11

O

OOF

3-17, 4-14

Out-of-Frame Seconds

3-17, 4-14

H

HDB3V

Index-2

4-12

P

parameter conventions parameters

alarm threshold configuration main menu

Verilink DCSU 2911 User Manual

3-3, 4-3

3-1, 4-1

3-21, 4-17

net port alarm me n u node administration performance/status T1 port diagnostic s

password

default

PASSWORD? Payload Loopback PC COM port performance/status

menu 3-16, 4-13 parameters

PLB PRI primary

auto restore 3-11, 4-8 synchronization

3-1, 4-1

1-2

3-16, 4-13

3-13, 4-10

1-2

3-18, 4-15

4-5

3-16, 4-13

4-10

3-13, 4-10

3-10, 4-8

Q

QRSS

test pattern

query firmware

3-14, 4-11

3-5

R

RAI

3-19, 3-21, 4-15, 4-17

registers

resetting

Remote Alarm Indication reporting

alarms card alarms

resetting

counters 4-15 registers test counters

Return/Enter RJ-11 RJ-48 RJ-48C RLB

3-17, 4-14

3-21, 4-17

3-18, 4-15

3-17, 4-14

3-14, 4-11

3-1, 4-1 1-2 1-2

1-2

3-13, 4-10

3-21, 4-17

secondary tertiary

system LED

3-11, 4-8

5-7

T

T1 port

diagnostics parameters

Terminal tertiary

auto restore synchronization

test pattern

2N20-1

test patterns

1/8 2N1 5-1 3 in 24 55 Octet All 0s All 1s None QRSS

time time zone timing options

2-2

3-11, 4-9

3-11, 4-8

3-14, 4-11

3-14, 4-11 3-14, 4-11 3-14, 4-11

3-14, 4-11 3-14, 4-11

3-5

3-8

U

UAS

3-16, 4-13

Unavailable Seconds

4-10

3-16, 4-13

S

secondary

auto restore 3-11, 4-8 synchronization

SEF

3-17, 4-13

SES

3-16, 3-19, 3-22, 4-13, 4-15, 4-18

Severely Errored Framing Seconds

3-11, 4-8

13

Severely Errored Second Severely Errored Seconds shelf and slot para meters shelf/slot di splay table shelf-timed specifications status

alarms

synchronization

primary

3-10, 4-9

1-5

3-19, 4-15

3-10, 4-8

3-22, 4-18

4-13

3-3, 4-3

3-16, 3-17, 4-

Verilink DCSU 2911 User Manual

Index-3

Index-4

Verilink DCSU 2911 User Manual

September 1999 P/N 880-502647-001-C1

VERILINK CORPORATION 127 JETPLEX CIRCLE, MADISON, ALABAMA 35758 TEL: (800) 837-4546

Verilink DCSU 2911 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

DCSU 2911 Dual Channel Service Unit

Application

System Components

Connector Interface Modules

T1 CIM

E1 CIMs

Specifications

DCSU 2911 Quick Set-Up

Installation

Connect to Craft Port

Terminal Parameters

Logging On

Bus Compatibility

Port Configuration

Network Ports

Equipment Ports

DCSU T1 Craft Interface

Logging On

Shelf and Slot Parameters

Controller Menu (Main Menu)

Administration Menu—Direct Access

Configuration Menu

Configuration Menu (FDL Options) Submenu

Alternate Timing Options Submenu

Diagnostics Menu

Performance/ Status Menu

Net Port Alarm Threshold Status Submenu

Net Port Alarm Menu

Manufacturing Info

System Log Off

DCSU 2911 E1 Craft Interface

Logging On

Shelf and Slot Parameters

Controller Menu (Main Menu)

Administration Menu

Configuration Menu

Timing Options Submenu

Alternate Timing Options Submenu

Diagnostics Menu

Performance/ Status Menu

Net Port Alarm Threshold Status Submenu

Net Port Alarm Menu

Manufacturing Info

System Log Off

Interpreting Alarms

Troubleshooting

Alarm Description

Alarm Classification

Problem Types

What To Do About Alarms

Alarm Records

Alarm List

Interpreting Front Panel LEDs

Network Port LEDs

Data Port LEDs

System LED

Index