Verilink PRISM 4151 User Manual

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PRISM 4151

DDS

CSU/DSU

TRANSPORT

34-00258

Edition

©1997 TxPORT. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form by any means without the written permission of TxPORT.

Reorder # 34-00258

Edition, March 1997

3 TxPORT shall not be liable for erro rs co ntain ed here in o r for in ciden tal or conseq uenti al da mages in conne c-

tion with the furnishing, performance, or use of this material. TxPORT reserves the right to revise this publication from time to time and make changes in content without obligation to notify any person of such revision changes.

Contents of this publication may be preliminary and/or may be changed at any time without notice and shall not be regarded as a warranty.

Documentation Disclaimer

TxPORT makes no representation or warranties of any kind whatsoever with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.

Trademarks

Ethernet is a registered trademark of Xerox Corporation.

Acknowledgment

The software used in the SNMP function of this product contains material derived from the following source:

Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution. All advertising materials mentioning features or use of this software must display the fol lowing acknowledgment:

This product includes software developed by the University of California, Berkeley and its contributors.

Neither the name of the University nor the nam es of it s co ntri butors may b e used to en do rse or p romo te pr oducts derived from this software without specific prior written permission.

This software is provided by the regents and contributors ‘as is’ and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the regents or contri butors be liable for any direct, indirec t, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.

Table of Contents

1. General

Features ............................................................................1-1

Specifications...................................................................1-2

Network Interface .....................................................1-2

Equipment Interface..................................................1-2

Diagnostics.................................................................1-2

Management Interfaces.............................................1-2

SUPV Port (Supervisory)..................................1-2

SLIP Port (Single Line Internet Protocol) ........1-2

SNMP/TELNET/E SNMP/TELNET/T

Power .........................................................................1-2

Mechanical.................................................................1-2

Environmental............................................................1-2

Compatibility .............................................................1-2

Industry Listings .......................................................1-2

FCC Requirements.......................................................... 1-2

Canadian Emissions Requirements..................................1-3

Warranty........................................................................... 1-3

Ordering Information...................................................... 1-3

TxPORT Customer Service............................................ 1-4

Sales and Marketing...................................................1-4

Technical Support......................................................1-4

Returns/RMA.............................................................1-4

THERNET OKENRING

(optional) .............1-2

(optional).........1-2

2. Installation

Unpacking and Inspection................................................2-1

Supplied Materials...........................................................2-1

Rack Mounting.................................................................2-1

Rack Mount Installation.............................................2-1

Port Connections.................................... ...... .................... 2-2

LAN ...........................................................................2-2

SLIP ............................... ...... ..... .................................2-3

SUPV .........................................................................2-3

NET...................................... ..... .................................2-4

V.35............................................................................2-4

Network Management............................................ ...... ...2-4

Power Connection............................................................2-4

3. Configuration

Hardware Configuration................................................... 3-1

Switch S1 ...................................................................3-1

Switch S2 ...................................................................3-1

Software Configuration.....................................................3-2

Interface Start-up....................................................... 3-2

Configuration Screen................................................. 3-2

DDS Network Parameters.................................. 3-3

DTE Port Parameters.......................................... 3-4

Alarm Configuration .......................................... 3-5

TCP/IP Configuration......................................... 3-6

SNMP Configuration.......................................... 3-7

Management Ports.............................................. 3-8

Summary .............................. ...... ...... .................. 3-9

Utilities ......................................................... ...... .....3-10

4. Testing

Hardware Testing..............................................................4-1

Front Panel LEDs ...................................................... 4-1

TEST .................................................................. 4-1

LOOP.................................................................. 4-1

NET.................................................................... 4-1

ALARM.............................................................. 4-1

POWER.............................................................. 4-1

Front Panel Buttons................................................... 4-1

TEST .................................................................. 4-1

LOOP.................................................................. 4-1

Software Testing...............................................................4-1

5. Operation

Interface Start-up ..............................................................5-1

Alarms...............................................................................5-1

A. Terminal Interface

Screen Components ........................................................A-1

Cursor Controls...............................................................A-1

Field Types .....................................................................A-2

Menu Structure ................................................................A-2

B. Pinout Tables

LAN Port - Ethernet.........................................................B-1

LAN Port - Token Ring...................................................B-1

SLIP / SUPV Port - PC....................................................B-1

SLIP / SUPV Port - Modem ............................................B-1

Net....................................................................................B-1

Data Port..........................................................................B-1

C. SNMP Agent

RFC 1213C-1

systemTableC-1 ifTableC-1

DDSC-3

DDS Network ObjectsC-3 DDS DTE ObjectsC-4

TxPORTC-6

1. General

The TxPORT PRISM 4151 DDS CSU/DSU is the ideal solution for internal networking and frame relay access to a local area network (LAN) or other data applications. It is packaged in a stand-alone housing and provides VT100 and SLIP interfaces for management.

The PRISM 4151 is easy to install and operate. Full access to configuration, status, and diagnostic features is available through the software driven terminal interface connection or a TELNET and/or SNMP set connection from any host on the wide area network (WAN).

The PRISM 4151 is an advanced DDS CSU/DSU with an embedded SNMP agent and TELNET access directly to the LAN. The SNMP agent allows the CSU/DSU to function like any other native LAN element. The agent supports MIB-II and the new DDS MIB that provides information specific to unit operation. The TCP/IP connection may be accessed through the standard SLIP interface or through the optional Ethernet or Token Ring interface.

The PRISM 4151 offers a managed interface into standard DDS service. It supports synchronous data rates at 56 kbps for DDS I and 64 kbps clear channel in DDS II. The DTE supports a V.35 interface. External clocking is supported for use in tail circuit applications.

The PRISM 4151 has diagnostic features which allow quick and easy trouble isolation. The CSU/DSU responds to all standard loop codes from the telco and can initiate remote V.54 loopbacks. An internal BERT may be used for testing. Line conditions are monitored and reported through front panel LEDs, a user connection to the terminal interface, a TELNET connection, or through SNMP.

The chapters in this manual are arranged as follows:

General

ranty information, in addition to TxPORT ordering information and customer service telephone numbers.

Installation

and interface connections, and unit powering.

- describes product specifications, FCC and war-

- describes unit moun ting , con figuratio n , port

Configuration

interface menus and screen settings.

Testing

tons, and software interface testing features.

Operation

for the unit.

Terminal Interface

firmware including the data fields and menu structure.

Pinout Tables

SNMP Agent

the unit.

- describes switch settings and terminal

- describes the front panel LEDs, front panel but-

- describes the alarm types and status features

- describes the features of the unit

- lists the pinouts for each port on the unit.

- defines all MIB entries or responses for

Features

• Packaged in standalone housing

• Embedded SNMP agent supports the standard MIB-II and the new TxPORT enterprise DDS MIB

• Embedded T

• Optional Ethernet or Token Ring Network Interface Card (NIC) for integral LAN interface

• TCP/IP connection through the standard S optional Ethernet or T oken Ring interface

• 56 kbps synchronous DDS I or 64 kbps synchronous clear channel DDS II service

• Complete diagnostic capabilities including multiple loops and built-in BERT

• Simple setup and software management through

- a VT100 compatible terminal interface

- the embedded SNMP agent

- a TELNET session

• Programmable alarm thresholds

• Remote communication channel for unit configuration

ELNET

support

interface or the

LIP

PRISM 4151

Figure 1-1 P

TEST LOOP

4151 Unit

RISM

TEST

TRANSPORT

ALARMNETLOOP POWER

General 1-1PRISM 4151

• Flash memory allows f ield software upgrades

Specifications

Dimensions: 12 inches (30.40 cm) Wide

2 inches (5.08 cm) High 9 inches (22.86 cm) Deep

Network Interface

Service Types: DDS I or DDS II clear channel con-

forming to TR62310 Operating Modes: Full duplex, point-to-point, multi-point Line Rates: 56 and 72 kbps Loop Range: Up to 45 dB of loss Line Connection: RJ-48C jack, 8-pin modular Timing Source: Network, DTE, Internal

Equipment Interface

Data Rates: Synchronous 56 and 64 kbps Antistream Timer: Off, 10, 30, or 60 seconds DTE Clocking: Internal or External DTE Connection: 34-pin V.35 (CCITT)

Diagnostics

Loopbacks: V.54 (receive and send), alternating

loop, latching loop BERT: 511 pattern

Management Interfaces

SUPV P

Connection: 8-pin modular (RS-232) Data Rates: 19.2 kbps

ORT

UPERVISORY

)

Environmental

Operating Temp: 32° to 122°F (0° to 50°C) Storage Te mp: -4° to 185°F (-20° to 85°C) Humidity: 95% Maximum (Non-Condensing)

Compatibility

TR62310: November 1987 TR62310A: December 1989 (addendum 3) TR41450: November 1981 Internet Standards: RFC1157 (SNMP)

RFC 1155 (SMI) RFC1213 (MIB-II) RFC1055 (SLIP) Enterprise TxPORT MIB Enterprise DDS MIB

MIB-II: Device identification and interface

performance data. All applicable objects and reporting traps maintained.

Industry Listings

FCC Compliance: Part 15 Class A, Subpart B, Part 68 U.S. Safety: UL 1459 Canadian Safety: CSA C22.2 No. 225-M90 Industry Cana da: CS03, Issue 8

SLIP P

Connection: 8-pin modular (RS-232) Data Rates: 1.2, 2.4, 9.6, & 19.2 kbps

SNMP/TELNET/Ethernet

Connection: 8-pin modular Network Protocol: TCP/ IP based networks Data Rate: 10 Mbps Compatibility: 10BASE-T, ISO/IEC 8802-3

SNMP/TELNET/Token Ring

Connection: 8-pin modular Network Protocol: TCP/IP based networks Data Rate: 4 and 16 Mbps Compatibility: Type 3 UTP, ISO/IEC 8802-5

ORT

INGLE LINE INTERNET PROTOCOL

(

OPTIONAL

)

(

OPTIONAL

)

Power

110 VAC: 100 mA, 12 W, 30 BTU maximum

Mechanical

Housing: Pl astic standalone case Mounting: Desktop or horizontal rack

FCC Requirements

This equipment has been tested and found to comply with the limits for a Class A digital device, pursu ant t o Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipmen t in a residential area is likely to cause harmful interference in which case the user is required to correct the interference at his own expense. This device must also accept any interference received, including interference that may cause undesired operation.

cables must be used to ensure compliance with the Class A

FCC limits.

Changes or modifications to this

unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Shielded

1-2 General

PRISM 4151

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

1. All direct connections to DDS lines must be ma de using standard plugs a nd jacks (co mpliant with Part 6 8). Table 1-A presents a list of applicable registration jack USOCs, facility interface codes (FIC), and service order codes (SOC). These are required when ordering service from the telco.

Table 1-A USOC FIC

Port ID REN/SOC FIC USOC

56 kbps 64 kbps

2. If the CSU/DSU appears to be malfunctioning, it should be disconnected from the DDS lines until the source of trouble is determined to be your equipmen t or the telephone line. If your equipment needs repair, it should not be reconnected until it is repaired.

3. The CSU /DSU has been desi gned to pr event harm to the DDS 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 give you advance notice, if possible.

4. Under FCC rules, no customer is authorized to repair this equipment, regardless of warranty status.

5. If the telephone company alters its equipment in a manner that will affect the use of this device, it must give you advance warning so that you can have the opportunity for uninterrupted ser vice. Yo u will be advised of your righ t to file a complaint with the FCC.

6. In the event of equipment malfunctio n, all repairs sho uld be performed by our company or an authorized agent. It is the responsibility of users requiring service to report the need for service to our company or to one of our authorized agents.

6.0F 04DU5- 56 04DU5-64

RJ-48S

Canadian Emissions Requirements

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

For the DC powered units only, end users should use existing battery sources or a CSA certified power supply.

Le present appareil numerique n’emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques (de la class A) prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.

Wa rranty

TxPORT warrants each unit against defects in material and workmanship for a period of five years from the date the CSU/DSU was shipped to the customer. If the CSU/DSU malfunctions at any time during the warranty period, TxPORT will repair, or at TxPORT’s option, replace the CSU/DSU free of charge.

The remedies listed herein are the users sole and exclusive remedies. TxPORT shall not be liable for any indirect, direct, incidental or conseq uential damages. T he owner must return the CSU/DSU to the factory, shipping prepaid and packaged to the best commercial standard for electronic equipment. TxPORT will pay shipping charges for delivery on return. The customer is respon sible for mode and cost o f shipment to TxPORT. This warranty does not apply if the CSU/DSU has been damaged by accident, misuse or as a r esult of service or modification by other than TxPORT personnel.

Ordering Information

Each PRISM 4151 unit is supplied with a reference manual and is equipped with a V.35 data port (F-4151-001-1110 is the default part number). Also provided is an 8-pin modular to 8-pin modular (four twis ted pairs) network cable (P/N 9 -

1001 -004-010). Table 1-B displays the unit ordering num-

bers and options.

Table 1-B Unit Ordering Numbers

Part Number Options

0 1 2

SNMP SLIP Ethernet Token Ring

F-4151-001--111

F-4151-100--111 Sing le Ethernet Card F-4151-200--111 Sing le Token Ring Card

The optional Ethernet or Token Ring LAN interface cards may be factory or customer installed.

The following optional equipment may also be needed for the operation of the CSU/DSU.

General 1-3PRISM 4151

Table 1-C Optional Equipment

Technical Support

Part Number Optional Equip men t

Network Cables

9-1001-070-010 9-1001-004-010 9-1001-004-010

9-1001-001-0 10 9-1001-311-0 10 9-1001-312-0 10

9-1001-044-0 10 9-1001-211-0 10 9-1001-212-0 10 9-1001-222-0 10

9-1001-073-2 DB-9 female to 8-pin RJ-48 (PC to SUPV)

9-1001-015-1 9-1001-015-2 9-1001-016-1 9-1001-016-2 9-1001-072-1 9-1001-091-1 9-1001-091-2

9-1000-1000-1 9-1000-4000-1

9-3100-002-1 9-3100-002-2

DDS cross-over kit Network LAN interface

V.35 Cab les

V.35 male to male null cable V.35 male to male, straight through V.35 male to female, straight through

RS-232 Cables

RS-232 male to male null modem cable RS-232 male to male, straight through RS-232 male to female, straight through RS-232 female to female, straight through

Cable Kits

Adapters

DB-25 male to 8-pin (terminal to SUPV) DB-25 female to 8-pin (terminal to SUPV) DB-25 male to 8-pin (modem to SUPV) DB-25 female to 8-pin (modem to SUPV) 8-pin RJ-48 to IBM Type 1 8-pin RJ-48 to DB-25 male (modem to SUPV) 8-pin RJ-48 to DB-25 female (modem to SUPV)

MIBs

TxPORT MIB DDS MIB

Rack Mount Kits

19-inch 23-inch

Technical support is available 24 hours a day, seven days a week. You may contact a support representative by telephone or e-mail.

Toll Free:

800-285-2755 Local: (205) 772- 3770 e-mail: support@txport.com

Returns/RMA

If for any reason you need to return a TxPORT unit, you must have a Return Material Authorization (RMA) number marked on the shipping package. You may obtain an RMA number from customer service at 800-926 -0085, ext. 2227.

When calling TxPORT for an RMA, please have the following information available.

• Model number and serial number for each unit.

• Reason for return and symptoms of problem.

• Warranty status (if known).

• Purchase order number to cover charges for out-of -warranty

items.

• Name and phone number of person we can contact if we

have questions about the unit(s).

• Mode of shipment required (second-day air is the normal

mode of shipment for all returned material unless otherwise specified).

Units being returned to TxPORT should be sent to the following address:

TxPORT 127 Jetplex Circle Madison, Alabama 35758

TxPORT Customer Service

TxPORT office hours are Monday through Friday from 8 a.m. to 5 p.m Central Time.

Sales and Marketing

For general, sales, and marketing information, contact TxPORT by telephone or e-mail.

Toll Free: 800-926-0085 Local: (205) 772- 3770 e-mail: info@txport.com

1-4 General

PRISM 4151

2. Ins tallation

Figure 2-1 PRISM 4151 into casing

This chapter contains instructions for physically installing the TxPORT PRISM 4151 as either a standalone or rack mount unit as well as information concerning the communication ports and power supply on the rear of the unit.

Unpacking and Inspection

Upon receipt of your shipment, inspect the shipping container and contents. If the contents of the shipment are incomplete or, if there is mechanical damage or defect, notify TxPORT Customer Service. If the shipping container or cushioning material is damaged, notify the carrier and TxPORT immediately and make a notation on the delivery receipt that the container was damaged (if possible, obtain the signature and name of the person making delivery). Retain the packaging material until the contents of the shipment have been checked for completeness and the instrument has been checked both mechanically and electrically.

Supplied Materials

Your baseline PRISM 4151 shipment contains three items.

• PRISM 4151 unit with a captive po wer supply

• 8-pin to 8-pin modular network cable (PN 9-1001-004-010)

• Reference manual with configuration guides

Rack Mounting

The PRISM 4151 is housed in a plastic case intended for desktop installation. Kits are available allowing the unit to be mounted into standard 19-inch (33.02 cm) or 23-inch (58.42 cm) racks. Refer to the section Ordering Information on page 1- 3 for part numbers. This assembly occupies two rack spaces at 3.5 inches (8.89 cm).

• Set of four bolts and nuts that attach the casing to the plate.

• Four screws that attach the assembly to the 19-inch or 23-

inch rack.

Rack Mount Installation

1. Insert the PRISM 4151 (rear first) into the casing as

shown in Figure 2-1.

2. Connect this assembly to the 19-inch or 23-inch plate

using the four nuts and bolts as shown in Figure 2 -2. When the mounting plate is attached to the PRISM 4151 and the casing, the unit is secure and cannot be pulled out of the assembly from the front.

3. To install the rack mount assembly into a rack, tighten

the four sets of nuts and bolts that attach the plate to the rack as shown in Figure 2-3.

The PRISM 4151 rack mount assembly consists of the following items. See page 1 - 3 for ordering numbers.

• A casing supporting the bottom, sides, and rear of the unit.

• 19-inch or 23-inch plate that bolts to the rack.

Rack mount plate

Four (4) bolts attach

bracket to rack mount plate

115 VAC

60 HZ

Figure 2-2 Rack Mount Assembly (Rear View)

SUPVSLIPLAN

S2 S1

NET

V.35

Installation 2-1PRISM 4151

TRANSPORT

PRISM 4151

TEST LOOP

Rack

ALARMNETLOOPTEST

POWER

19" or 23" width available

Figure 2-3 Rack Mount Assembly (Front View)

P o rt Connections

On the rear of the PRISM 4151, there are five port connections as shown in Figure 2-4: LAN, SLIP, SUPV, NET, and Data Port 1.

LAN

The PRISM 4151 is an 8-pin modular jack labeled LAN. It can be equipped with either an internal Ethernet or Token Ring network interface card (NIC) for connection to a local area network (LAN).

the optional NIC is installed.

10BASE-T. The Token Ring interface is Type 3. This allows the NIC to be installed without changing the rear panel.

The Simple Network Management Protocol (SNMP) agent is used for monitoring and alarm reporting.

This port does not function unless

The Ethernet interface is

Four (4) nuts and bolts

attach rack mount kit to rack

Ethernet:

The Ethernet interface complies with standard twisted pair, 10BASE-T requirements. Table 2-D displays the pinout assignments for the 8-pin modular LAN connection.

Table 2-D Ethernet Pinout Assignments

Pin Ethernet Interface

1 Data Out (+) 2 Data Out (-) 3 Data In (+) 6 Data In (-)

Before connecting the PRISM 4151 to the LAN network, configure the LAN interface using the SNMP Parameters screen (page 3-7) of the unit firmware.

Token Ring:

The Token Ring interface is designed to operate on both 4 and 16 Mbps networks and complies with standard unshielded twisted pair (UTP) requirements. Table 2-E displays the pinout assignments for the 8 -pin modular LAN connection.

2-2 Installation

115 VAC

60 HZ

SUPVSLIPLAN

S2 S1

NET

V.35

Figure 2-4 PRISM 4151 (Rear View)

PRISM 4151

Table 2-E Token Ring Pinout Assignments

Pin Token Ring Interface

3 Data Out (-) 4 Data In (+) 5 Data In (-) 6 Data Out (+)

Before connecting the PRISM 4151 to the LAN network, configure the LAN interface using the SNMP Parameters screen (page 3-7) of the unit firmware.

Connection to an IBM Type 1 cable requires a TxPORT adapter kit (part number 9-1001-072-1). This kit includes an impedance matching adapter.

SLIP

The SLIP port is an 8-pin modular jack (electrically RS-

232) DCE port configured for 8 bits, no parity, and 1 stop bit. The bit rate defaults to 19200 bps but may be changed through the terminal interface (see Management Ports on page 3 - 8). Figure 2 -5 provides the pinout assignments. See page 1 - 3 for ca ble information.

This port allows access to the embedded SNMP agent for trap reporting or SNMP management. You may access this port through either a direct connection or a dial-up connection via an AT command set compatible modem. Serial bit rates can be set from 1200 bps to 19200 bps.

Direct Connection:

nal server or router that provides SLIP access to the LAN. The TCP/IP connection is ‘always up’ in this mode.

The SLIP port is connected to a termi-

Dial Connection:

In this mode, a modem is connected to the SLIP port allowing you to initiate a SLIP connection to the CSU/DSU from remote sites whenever access is desired. The modem should be configured to ignore DTR, enable auto answer, inhibit command echo, and return verbose result codes. Also, when the CSU/DSU has alarm messages to transmit, it dials out of the p ort using the phone number programmed in the Management Ports screen (page 3-8). When a connection is made, the CSU/DSU outputs the ASCII characters stored in its buffer. If a phone number is not programmed, the CSU/DSU never dials out but you can dial in. The IP Connection must be changed to the SLIP port in the ‘TCP/IP’ screen (page 3 - 6). The S LIP and LAN port cannot both be active at the same time.

SUPV

The SUPV port is an 8-pin modular jacks (electrically RS-232) DCE port configured for 8 bits, no parity, and 1 stop bit. The SUPV port bit rate is fixed at 19200 bps. Figure 2 -5 provides the pinout assignments. See page 1 - 3 for cable information. The COA feature works through the supervisory port only.

You can configure the unit firmware through this port (page 3 - 2) as well as the Call On Alarm feature (page 3 - 8). You may access this port through either a direct VT100 connection or a dial-up connection via an AT command set compatible modem. The modem should be configured to ignore DTR, enable auto answer, inhibit command echo, and return verbose result codes.

If you call the unit and send the mand before receiving the the modem will hang-up.

BREAK

CONNECT

com-

message,

UPV/SLIP

Port

DCD Out 1 CTS Out 2 Frame Gnd 3 Data Out 4 Data In 5 Signal Gnd 6 RTS In 7 DTR In 8

8-Pin

Modular

PRISM 4151 Rear Panel

RS-232 to Terminal

PN# 9-1001-073-2

PC (DTE)S

1 DCD 8 CTS 5 Frame Gnd 2 RXD 3 TXD NC Signal Gnd 7 RTS 4 DTR

DB-9

UPV/SLIP

Port

DTR Out 1 RTS Out 2 Frame Gnd 3 Data Out 4 Data In 5 Signal Gnd 6 CTS In 7 DCD In 8

8-Pin

Modular

PRISM 4151 Rear Panel

RS-232 to Modem

PN# 9-1001-083-1

Figure 2-5 SUPV and SLIP Terminal/Modem Connections

Modem (DCE)S

20 DTR 4RTS 1Frame Gnd 2TXD 3 RXD 7 Signal Gnd 5CTS 8DCD

DB-25

Modem

Installation 2-3PRISM 4151

NET

The DDS network is connected through a standard RJ-48S (8-pin modular) conn ector labeled NET. The pinout assignments are displayed in Table 2-F.

Table 2-F RJ-48S Pinout Assignments

Pin NET Interface

1 Data Out (Tip) 2 Data Out (Ring)

3 - 6 Not Used

7 Data In (Tip) 8 Data In (Ring)

In accordance with FCC Rules, Pa rt

68.218 (b), you must notify t he telephone company prior to disconnecting this produ c t.

The network side of the CSU/DSU is referred to as the network interface. This interface contains an ALBO (automatic line build-out) allowing the CSU/DSU to be locat ed a substantial distance away from the telco network interface with a receive signal level down to -45 dB.

V.35

The PRISM 4151 is equipped with a V.35 data port (on a standard 34-pin connector). Pin functions for the high speed port interface are listed in Table 2-G.

FCC rules require that interconnect-

ing cables carrying high speed data be shielded appropriately i n order to minimize radio frequency interference.

Table 2-G V.35 Interface

CCITT/

EIA

Circuit

101/AA Frame Ground A Gnd 102/AB Signal Ground B Gnd 103/BA Transmit Data P … S In 104/BB Receive Data R … T Out 105/ CA Request to Send C In 106/ CB Clear to Send D Out 107 /CC Data Set Ready E Out 108/CD Data Term Ready H In 109/CF Data Carrier Detect F Out 114/DB Transmit Clock Y …

115/DD Receive Clock V … X Out 113/DA External Clock U …

141/LLB Local Loopback J In 140/RLB Remote Loopback BB In 142/TM Test Mode K Out

Common Name V.35

34 - pin

DCE

Out

Network Management

Network management is accomplished via the SUPV port (page 2-3), SLIP port (page 2-3), or the LAN port (page 2-2).

The PRISM 4151 incorporates the full TCP/IP stack and supports inbound T supporting the TxPORT enterprise MIB, which provides access to the specific functionality of the CSU/DSU, including DDS status information. MIB objects for the PRISM 4151 are listed in Appendix C.

. It has an embedded SNMP agent

ELNET

2-4 Installation

Power Connection

AC powered units use a 110 VAC captive power supply. There is no power switch. The green power LED on the front panel illuminates after the LED ini tialization sequ ence ends. If the indicators do not illuminate, rech eck the power connections and the primary AC circuit breaker.

PRISM 4151

3. Configuration

DDS Mode

Timing

Remote/Local

DTR Alarm

Loopback

CTS Delay

Source

Dn Up

RTS, CTS, DCD

Handshake

Switch

Figure 3-8 Switch S2

Boot Mode

The PRISM 4151 can be configured through manual switch settings and/or through a VT100 term inal connection to the supervisory por t .

All default options in this manual are underlined

Hardware Co nfi guratio n

Hardware configuration is set using two dual in-line package (DIP) switches located on the rear of the unit. These switches allow you to configure simple applications. Refer to Figure 3 - 6 for switch locations. A removable configuration guide (45-00105) is included in the back of this manual.

Switch S1

Switch S1 (Figure 3-7) configures the antistream timer, V.54 loop, circuit assurance, and loop mode.

Not Used

7654321 8

Not Used

Switch

, CTS

Antistream Timer

V.54 Loop

Loop Mode

Circuit Assurance

Figure 3-7 Switch S1

Antistream Timer:

Switch S1-1 allows the DDS transmitter to send DMI (Data Mode Idle / all ones) if the RTS remains enabled long enough for a timeout to occur. Choices are Off (Dn)

V.54 Lo op:

Switch S1-2 enables (Dn)

or 30 seconds (Up).

or disables (Up) the unit’s ability to respond to incoming V.54 loop/unloo p code. If set to enable, the PRISM 4151 will loop or unloop. If set to disable, loop codes are ignored.

Circuit Assurance:

Switch S1-3 configures the CTS/RTS sequence. When Circuit Assurance is disabled (Dn) follows RTS. When enabled (Up), CTS follows RTS if DCD is also enabled (or set to On).

Loop Mode:

the transmit and receive data as either bidirectional (Dn)

Switch S1-4 determines the loop direction for

or unidirection (Up). Refer to page 4 -1 for more information concerning the loop modes and with respect to testing.

Switch S2

Switch S2 (Figure 3-8) configures the boot mode, DDS mode, timing source, CTS delay, RTS, CTS, DCD handshake, remote/local loopback, and DTR alarm.

7654321 8

Boot Mode

figures itself from the DIP switches or from the saved software configuration. If set to boot from saved software configuration (Up), the switch settings are ignored. If set to boot from switch es (Dn) power-up and configures accordingly. Once running, configuration changes can be made through the terminal interface, overriding the switch settings.

DDS Mode:

either DDS II/64 kbps (Dn)

Timing Source

clocking source. The most common timing source for CSU/

DSU applications is the network. The PRISM 4151 may also be optioned to time from an internal standard or from the high speed data interface as shown in Table 3-H.

: Switch S2 - 1 determines whether the unit con-

, the unit reads the DIP switches on

Switch S2-2 establishes the DDS mode as

or DDS I/56 kbps (Up).

: Switch S2- 3 and S2 - 4 determine the unit

115 VAC

60 HZ

SUPVSLIPLAN

S2 S1

NET

V.35

Figure 3-6 PRISM 4151 Rear Panel

Configuration 3-1PRISM 4151

Table 3-H Timing Source

Alarm

Configuration

page 3-5

DTE Port

Parameters

page 3-4

SNMP

Configuration

page 3-7

Configuration Menu

Summary

page 3-9

TCP/IP

Configuration

page 3-6

Management

Ports

page 3-8

Figure 3-9 Configuration Menu

DDS Network

Parameters

page 3-3

S2-3 S2-4 Timing Source

Dn Dn Network Dn Up Internal Up Dn DTE Up Up Not Used

screen. The underlined values are the factory default parameters.

CTS Delay:

Switch S2-5 allows you to determine the CTS

delay as being either Short (Dn) or Long (Up).

RTS, CTS, DCD Handshake:

Switch S2-6 determines the handshake process as either Force True (Dn) or Normal (Up).

Remote/Local Loop:

Switch S2-7 disables (Dn) or enables (Up) remote and local loop activation by the RL and LL pins on the DTE interface.

DTE Alarm:

Switch S2-8 disables (Dn) or enables (Up) the DTE alarm. The DTE alarm is generated when DTR from the DTE device is false.

Software Configuration

The terminal interface is a firmware application program embedded inside the PRISM 4151. You can access this information through the LAN port (page 2- 2), SUPV port (page 2 -3), or SLIP port (page 2 - 3) using a TELNET session.

Interface Start-up

Once a compatible terminal is properly connected to the unit, you can start a terminal interface session by sending a BREAK command to the unit (or by pressing <return> four times). If a password has been previously establish, you must enter the correct password to continue the session.

password is case -sensitive.

If you have forgotten your password, note the date and time shown on your screen and contact TxPORT Technical Support. You can establish a password through the Utilities screen on page 3-10.

Once a valid password has been entered, the Main Menu screen is displayed. If you are unfamiliar with the PRISM 4151 interface, commands, and menu structure, refer to Appendix A,

Terminal Interface

, for specific information

concerning the menu structure and operator commands.

If you do not enter a keystroke for 10 minutes, the terminal interface

automatically logs off.

The

Configuration Screen

The Configuration screens allow you to view and set configuration parameters for the network elements.

3-2 Configuration

To send a new configuration to the unit, you must press <return> on one of the fields or exit the

PRISM 4151

DDS N

ETWORK PARAMETERS

The DDS Network Configuration screen (Figure 3-10) allows you to select parameters for the network interface.

Data Mode:

Choices are DDS I and DDS II

which is a clear

channel 64 kbps without secondary channel.

This field is automatically set to 56K for DDS I and

Rate:

64K (72K) for DDS II. DDS II mode inserts 64 kbps user data from the DTE into a 72 kbps framed network signal.

Timing:

This field selects the bit rate clock source. NET uses the received network signal as the clock source. INT uses the internal oscillator (25 ppm) for the clock source. DTE uses TXC from the DTE interface as the clock source.

Circuit Assurance:

When Circuit Assu rance is set to Off CTS follows RTS. When RTS transitions to t he On state, CTS will transition to the On state after the RTS/CTS delay. CTS will transition to the Off state within one bit time when RTS transitions to the Off state.

When Circuit Assurance is set to On, CTS follows RTS if DCD is On. When RTS transitions to the On state, CTS will transition to the On state after the RTS/CTS delay if DCD is On. CTS will transition to the Off state within one bit time when RTS transitions to the Off state. CTS is Off if DCD is Off.

RTS should be set to NORMAL on the DTE PORT parameters when Circuit Assurance is On. The FORCE DCD option will be changed to NORMAL.

Antistreaming Timer:

The Antistreaming Timer is controlled by RTS. If RTS remains enabled long enough for a timeout to occur, the DDS transmitter will s end DMI (Data Mode Idle / all ones). The Antistreaming Timer is reset

when RTS transitions to the Off state. Choices are OFF 30, and 60 seconds.

, 10,

Figure 3-10 DDS Network Parameters Screen

Configuration 3-3PRISM 4151

DTE P

ORT PARAMETERS

The DTE Port Configuration screen (Figure 3-11) allows you to configure the DTE port.

Port Type:

The Port Type field displays the active DTE interface which will be either V.35 or RS-232 (if option is installed). The active port is automatically detected on occurrence of transmit data pulses.

Port R a t e :

Port Rate is determined by the Data Mo de selection on the Network Parameters screen. The values are 56K for DDS I and 64K for DDS II

Port Fo rm at :

This field shows the data format for the DTE

port which is always synchronous.

This field controls the behavior of the DSR signal

DSR:

during test modes. If TEST>OFF is selected, DSR will transition to the Off state when a loop or BERT test is active. Options are FORCED ON

This field controls the behavior of the DCD signal

DCD:

or TEST>OFF.

during an IDLE condition. When Data Mode Idle codes are received, DCD will transition to Off if this field is set to IDLE>OFF. This only applies to DDS I mode. Options are FORCED ON

If this field is set to NORMAL, the RTS signal will

RTS:

or IDLE>OFF.

control the transmitter and CTS output signal. If set to FORCED ON

, the RTS input signal is set to On inside the

unit.

RTS/CTS Delay:

This field selects the delay from the RTS

transition (to On) to the CTS transition. The delays are: NORMAL

=0.4 ms +/- 0.02 ms for DDS I

0.3 ms +/- 0.015 ms for DDS II

LONG = 0.8 ms +/- 0.04 ms for DDS I

0.6 ms +/- 0.03 ms for DDS II

DTR Alarm:

This option allows you to enable or disable

alarm if the DTR signal from the DTE device goes false.

V54 Loop:

loop/unloop codes. If set to enable

This field controls response to incoming V.54

, the PRISM 4151 will

loop or unloop. If set to disable, loop codes are ignored.

LL Detect:

This option allows you to enable or disable

the local loop activation by the local loopback signal (V.35 pin J or RS-232 pin 18) on the DTE interface.

RL Detect:

This option allows you to enable or disable

the remote loop activation by the remote loopback signal (V.35 pin BB or RS-232 pin 21) on the DTE interface. Remote loopback causes transmission of V.54 loop or unloop codes to the far end device.

3-4 Configuration

Figure 3-11 DTE Port Parameters Screen

PRISM 4151

LARM CONFIGURATION

The Alarm Configuration screen (Figure 3- 12) allows you to review and set alarm related thresholds for the selected element. These thresholds are the minimum acceptable performance levels. To modify the parameters, highlight the desired statistic and press the spacebar to increase the value or backspace to decrease the value and press <return>. If this value is later surpassed, an alarm indication will appear. A field set to none (--) will cause the element not to alarm on that statistic.

Loss of Signal S econds

: A one second period in which the DDS received signal is interrupted. Options are 1, 2, 3, 4, 5 10, 20, 30, and none (--).

Out of Service Seconds:

A one second period during which the Out Of Service code is received. Options are 1, 2, 3, 4, 5, 10, 20, 30, and none (--)

Out of Frame Seconds

: A one second period in which the Out Of Frame code is received or a frame sync loss occurred. Options are 1, 2, 3, 4, 5, 10, 20, 30, and none

Alarm Reset Timer

: Determines the number of seconds

(--).

after alarm conditions clear before indications are removed. Options are 10, 30

, 60, 90, 100, 200, 300, 400, 500, 600, 700, 800, 900, and None. If this value is set to None, the alarm conditions will not automatically reset.

Figure 3-12 Alarm Configuration Screen

Configuration 3-5PRISM 4151

TCP/IP C

ONFIGURATION

The TCP / IP Configuration screen (Figure 3 - 13) is accessible for the SLIP, Ethernet or Token Ring SNMP interface. It allows for the entry of those parameters required for proper operation wit h an E therne t or Token Ring-based LAN ma nager.

Reset LAN Interface:

For changes to take effect, the LAN interface must be reset or the parameters must be stored to the EEPROM. Selecting this field brings up a confirmation screen which prompts you to proceed with the reset.

LAN Connection:

This field allows you to select S

LIP

Ethernet, or Token Ring interface for the network connection.

PRISM I P Address

: This field accepts IP addresses. Each device connected to the LAN is required to have a unique IP address identifier.

Subnet Mask

: This field is provided to manually override the subnet mask setting which is otherwise discovered by the SNMP agent.

Router IP Address

: This field accepts the IP address of the

default router.

Filter IP Address

: These eight fields accept the IP address of the source packet filter. If any of these fields are set, access is allowed only by the specified IP addresses.

3-6 Configuration

Figure 3-13 TCP/IP Configuration Screen

PRISM 4151

SNMP C

ONFIGURATION

The SNMP Configuration screen (Figure 3-14) is accessible for the SLIP, Ethernet or Token Ring SNMP interface. It allows for the entry of those parameters required for proper operation with an SNMP-based network manager.

The PRISM 4151 supports alarm reporting by SNMP TRAPs when running the LAN or SLIP interface. If the unit’s IP connection is LAN or direct SLIP, it expects an IP connection to always be present and thus outputs its TRAP messages immediately. If the IP connection is dial SLIP, the unit dials out from the modem connected to the SLIP port using the number programmed in the SNMP C onfiguration screen and outputs trap messages upon connection.

The PRISM 4151 has an embedded SNMP agent supporting MIB-2 and a proprietary DDS MIB. The SET command is supported and has the functionality described below. The PRISM 4151 also supports a single TELNET session.

SNMP Sets:

This field enables or disables

the set command responses for SNMP. Refer to Appendix C, SNMP Agent, for detailed information on these responses.

TRAP IP Address

: These six rows require numeric entries. Each row contains four 3- digit numbers which are separated by periods. Each of these numbers can range from 0 to 255.

These fields accept the IP address of a network device to which alarm reporting traps are to be sent. The unit detects and reports alarms and provides several options for reporting them, one of which is SNMP traps. When an alarm occurs, the unit sends a trap message to up to six destinations on the user’s network. The trap message is formatted

per RFC 1157. The generic trap type is enterprisespecific (generic-trap = 6).

Up to six trap IP addresses can be assigned to report via SNMP. The unit will report each alarm by transmitting an SNMP trap to each trap IP address. DDS network problems often cause more than one alarm type. In these cases, multiple trap messages are generated, each with a different specific trap type.

The following five menu items allow the entry of up to 58 characters identifying the appropriate group, person, device function, or unit location.

Read Community

: This display accepts a character string identifying the group authorized to perform read operations. The default setting is public

Write Community

: This display accepts a character string

identifying the group authorized to perform write operations. The default setting is a null string (‘ ‘).

System Contact

: This display accepts a character string identifying the person responsible for a network device. The default setting is no

System Name

system contact.

: This display accepts a character string identifying the functionality of the network device. The default setting is no

System Location

system name.

: This display accepts a character string identifying the physical location of network device. The default setting is no

system location.

Figure 3-14 SNMP Configuration Screen

Configuration 3-7PRISM 4151

ANAGEMENT PORTS

The Management Ports screen (Figure 3-15) sets the following parameters for the Call On Alarm (COA) connection on both the SUPV and SLIP ports.

COA Connection

(SUPV): This field controls the remote alarm reporting. ASCII alarm reporting through the supervisory port is independent of trap alarm reporting. The ASCII alarm report type is set by the following choices:

[DISABLED

] - Alarm reporting is disabled.

[DIAL] - Sends reports through an attached AT command set compatible modem connected to the SUPV serial port, which must dial out to a remote modem. The message format is described in the Element ID field.

[DIRECT] - Sends reports to a printer or terminal connected directly to the supervisory port.

COA messages are reported in the following format in the [DIAL] or [DIRECT] modes only:

Element ID<CR><LF> TxPORT DDS DSU Alarm Report HH:MM:SS MM/DD/

YY<CR><LF> NET Alarms: alarms <CR> <LF> DTE Alarms: alarms <CR> <LF>

where (alarms) is a string consisting of some or all of the identifiers LOS, OOF, OOS, or DTR. The following is an example:

Joesunit 17:24:55 TxPORT DDS DSU Alarm Report 08/04/96 NET Alarms: LOS DTE Alarms: DTR

The user programmable Element ID string (see Util ities on page 3 -10) is tran smitted first to allow the COA function to send a message with a specific meaning to some host (such as a log on message).

Primary Dial String, Secondary Dial String

: These fields are ASCII strings for the primary and secondary call on alarm phone numbers used in the [DIAL] mode. The strings must include the ATDT command prefix (ex. ATDT555-1212).

The unit attempts three times to con nect using the primary number. If all three attempts fail, it will attempt three times to connect using the secondary number (if it is not blank). If the secondary number fails, the unit waits five minutes and then attempts to communicate with the primary number again. When a connection is detected, the unit outputs the notification message and then disconnects.

Initialization String

: The modem initialization string is entered in this field. Refer to the modem’s documentation for further information. The default setting is

ATE1Q0V1S0=1

Disconnection String

: This field identifies the character string to be output when the modem session is terminated. The default setting is

SLIP Port Rate:

Options are 1.2K, 2.4K, 9.6K, and 19.2K

SLIP Connection:

ATH

This field controls remote SNMP trap reporting. Trap reporting through the SLIP port is independent of ASCII alarm reporting. The trap report type is set by the following choices:

[DISABLED] - Trap reporting is disabled. [DIAL] - Sends traps through a modem to the SLIP server. [DIRECT

] - Sends traps directly to the SLIP server.

3-8 Configuration

Figure 3-15 Management Ports Screen

PRISM 4151

Primary Dial String, Secondary Dial String:

These fields are ASCII strings for the primary and secondary call on alarm phone numbers used in the [DIAL] mode. The strings must include the ATDT command prefix (ex. ATDT555-1212).

The unit attempts three times to connect using the primary number. If all three attempts fail, it will attempt three times to connect using the secondary number (if it is not blank). If the secondary number fails, the unit waits five minutes and then attempts to communicate with the primary number again. When a connection is detected, the unit outputs the SNMP trap message and then disconnects.

Initialization String:

The modem initialization string is entered in this field. Refer to the modem’s documentation for further information. The default setting is

ATE1Q01V1S0=1

Disconnection String:

This field identifies the character string to be output when th e modem session is terminated. The default setting is

Compressed SLIP

ATH

: The choices are AUTO

, ENABLE, and DISABLE. The AUTO setting allows the 4151 to negotiate with the far end to enable or disable SLIP compression, depending on the type of connection.

UMMARY

The Summary screen (Figure 3-16) is a

display-only

screen summarizing the unit configuration including stored memory and switch settings. The current column displays the current unit configuration. The saved column displays the configuration stored in memory. The switches column displays all the configuration switch settings.

Figure 3-16 Summary Screen

Configuration 3-9PRISM 4151

Utilities

The Utilities screen (Figure 4-23) handles the functions described in the following paragraphs.

Element ID

(29 characters in length) identifying the unit to the device receiving the alarm notification messages. This ASCII string is also displayed at the top of all terminal interface screens.

Unit Address: Set Time

using the 24- hour HH :MM :SS format. For example, 3:45 AM is entered as 03:45:00 and 3:45 PM is entered as 15:45:00.

Set Date

using the MM/DD/YY format. For example, July 4, 1996 is entered as 07/04/96.

The PRISM 4151 is Year 2000 date compliant. All date related functions for the year 2000 and after will operate without d iscrepancies or in terruptions.

New Password

to 10 characters. An empty string (carriage return only) may be entered to disable the password feature. After <return> is pressed, the new password is activated and is no longer visible. Therefore, type carefully when entering a new password and verify before pressing <return>. When the terminal interface is exited and later reactivated, this password must be entered exactly to gain access. If the wrong password is entered, the following message will appear:

Incorrect Password; Please Enter Again.

: This field allows the entry of an ASCII string

The unit address between 1 and 250.

: The current time may be entered in this field

: The current date may be entered in this field

: This field allows entry of a password of up

Do not exit the terminal interface

program until the password procedure is fully understood. If a password has been specified, it must be typed exactly to reenter the program.

If you program a password and later forget it, contact TxPORT Technical support for a one-time backdoor password.

Store Parameters to EEPROM:

This command causes the unit to store all user-selectable parameters into non-volatile memory. These settings then become the

saved

configura-

tion which can be loaded at power-up.

This command causes the unit to

restart and will interrupt network traffic. Pressing <RETURN> on this field to activate the command brings up the following warning:

ARE YOU SURE? - THIS WILL INTERRUP T DDS DA TA

(NO!) (YES)

Maintenance Reset

: This field will clear all user selectable parameters, performance registers, passwords, and alarms but saves the IP Addr ess. All alarm th reshold parame ters are set to default values. These settings are then written to nonvolatile memory as the

configuration.

saved

This command causes the unit to

restart and will interrupt network traffic. Pressing <RETURN> on this field to activate the command brings up the following warning:

ARE YOU SURE? - THIS WILL INTERRUP T DDS DA TA

(NO!) (YES)

3-10 Configuration

Figure 3-17 Utilities Screen

PRISM 4151

Factory Reset:

Clears all user selectable parameters

including the IP Address. To exit this screen without performing the reset function,

press <return>with NO selected. To proceed with the reset function, move the cursor to YES and press <return>.

The reset operation sets all parameters to the factory default settings and zeros all performance registers.

This command causes the unit to

restart and will interrupt network traffic. Pressing <RETURN> on this field to activate the command brings u p the following warning:

ARE YOU SURE? - THIS WI LL INTERRU P T DDS DATA

(NO!) (YES)

Configuration 3-11PRISM 4151

3-12 Configuration

PRISM 4151

4. Testing

TRANSPORT

This chapter describes hardware and software testing procedures and responses for the PRISM 4151.

Hardware Testing

The PRISM 4151 front panel (Figure 4- 1) has five LED indicators and two control buttons from which you can perform basic unit testing.

Front Panel LEDs

Five front panel LEDs allow a visual identification of the test results and alarms. These LEDs are: TEST, LOOP, NET, ALARM, and POWER.

TEST

This LED flashes amber when the unit is transmitting loop or unloop code. It is gr een continuously when BERT is on with no errors. It is red when the BERT is on and is receiving errors or is out of pattern sync.

LOOP

This amber LED lights continuously when the unit is in any loop condition.

NET

This LED is green when th e unit is in frame sync and does not detect a Loss of Signal. It is red when the unit is out of frame sync and/or detects Loss of Signal.

TEST

When this button is pushed once, the unit transmits V.54 loop code sequence out to the network. The indicator blinks amber during transmission of the loop code.

At completion of the loop pattern, 511 BERT pattern is transmitted toward the network. The received pattern is compared and if the pattern is received error free, the TEST indicator remains green. If pattern errors are detected, the TEST indicator turns red for one second for each errored second. Therefore, if five errored seconds are received, the indicator will remain red for five seconds. The DTE port is looped back toward the DTE during the test.

If the TEST button is pushed again, the unit transmits V.54 loop down code and returns to normal operating mode. The TEST indicator is then turned off.

LOOP

When this momentary push button is pushed once, the unit activates a line loopback, looping the network receive data back to the network, and looping the data from the DTE ports back to the DTE. The TEST indicator is illuminated while the unit is in loop. If pushed again, the unit clears the loop and turns off the LOOP indicator.

For additional information concerning test and loop options, refer to the section Software Configurat ion on page 3-2.

ALARM

Red LED lights continuously when the unit is in an active alarm condition.

POWER

Green LED lights continuously when power is applied to the unit.

Front Panel Buttons

Two front panel buttons allow you to perform loopback tests. The two buttons are: TEST and LOOP.

PRISM 4151

Figure 4-1 Front Panel Controls and Indicators

Software Testing

When in-depth testing is necessary, you can use the PRISM 4151 Maintenance screen (Figure 4- 2 on page 4 - 2) to perform loop tests and/or BERT functions on the DDS circuit. You can activate and clear loops and the BERT tester. BERT is performed by using on -board test facilities. No other test equipment is needed. Some of these tests may also be activated by the front panel push buttons as described in Hardware Testing on page 4-1.

TEST LOOP

ALARMNETLOOPTEST

POWER

Testing 4-1PRISM 4151

Clear Tests:

Pressing <return> on this field clears all local

tests and any line loops that have been initiated.

Clear Alarms

near end alarms to be cleared.

: The type of loop is chosen by toggling the <space-

Loop

: Pressing <return> on this field causes all

bar> and is executed by pressing <return>. Options include LOCAL

, V. 54, a nd FAR V. 54. L ocal a nd V.54 generate near

end loops. Far V.54 generates a V.54 loop at the far end.

Unloop:

Pressing <return> takes down the specified loop from the currently selected port. The type of loop is chosen by toggling the <spacebar> and is executed by pressing <return>. Options include LOCAL

Loop Mode

: Options include BIDIRECTIONAL

, V.54, and FAR V.54.

and UNIDIRECTIONAL. When set to Unidirectional, the NET receive data is looped back to the NET as NET transmit data and continues to pass through the data port to the DTE. Transmit data from the DTE is terminated. When set to Bidirectional, the NET receive data is looped back to the NET as NET transmit data. Transmit data from the DTE is looped back through the data port as receive data to the DTE.

Line Loop:

Occurs at the DDS network interface and activated by the reversal of the simp lex, 20 mA s ealing cu rrent. This is a unidirectional loop that ignores the CSU/DSU transmit data and retransmits the received DDS data. Receive data is unaffected and circuits DSR and CD are forced OFF.

Line Loop

DTE

NET

Occurs at the DDS network interface. In DDS I

Data Loop

mode, the data loop is activated when the CSU/DSU receives alternating loop codes in the network receive data stream. Technically, it is activated by the receipt of at least 4 consecutive loop commands and remains looped as long as each 3rd pattern byte is the loop command. It returns to normal operation after at least 4 pattern bytes that are not the loop command. This is a unidirectional loop that retransmits the CSU/DSU received data on the CSU/DSU transmit data including the remapped loop code. Receive data is unaffected (but includes the modified loop codes) and circuits DSR and CD are OFF.

In DDS II mode, the data loop is activated when the latching loopback sequence is received. The sequence consists of 35 or more TIP bytes, 35 or mor e L SC bytes, 10 0 or m ore L BE bytes, 32 or more FEV bytes. Latching loop is deactivated when 31 or more TIP bytes are received.

Data Loop

V.5 4 L oo p

V.5 4 L oop:

Occurs at the DDS network interface and is

DTE

NET

activated upon receipt of inband V.54 loop codes for at least two seconds followed by all ones in the network receive data stream. This loop is unidirectional and returns the CSU/DSU receive data to the CSU/DSU transmit data, and subsequently the DDS transmit data. Receive data is unaffected and DSR and DCD are forced OFF.

Local Loop:

Bidirectional and occurs at the DDS network interface. It returns the DDS receive data to the DDS transmit line and the CSU/DSU transmit data to the CSU/DSU receive data output.

4-2 Testing

Figure 4-2 Element Maintenance Screen

PRISM 4151

Local Loop

Activate Remote Access:

DTE

Pressing <return> on this field

NET

initiates communication with another PRISM 4151 DDS unit at the far end of the network link.

The near unit will transmit an activation signal to the far end unit for five seconds. At the end of this period, both units should be in remote access mode. While in this mode, the DCD and DSR signals to the DTE interface are FALSE and the transmit data from the DTE is not transmitted to the network. The command field also changes to DEACTIVATE REMOTE ACCESS.

While Remote Access is active, the far end type/revision information should be displayed in the upper left corner of each screen. Also on each screen, a field labeled with selectable values of

Near

and

appears. Pressing

Far

Element

<return> on this field activates the user interface for the selected element.

To terminate Remote Access, press <return> on the DISABLE REMOTE ACCESS field. Both units will immediately return to normal operation.

During Remote Access, either unit will return to normal operation if communication with the far end is lost for 30 seconds.

BERT:

These fields control the Bit Error Rate Test feature. BERT is performed on the NET interface and preempts user data.

Te st L en gt h :

Defines the run-time of test pattern generation and error accumulation. The choices are [15 min], [30 min], [60 min], [24 Hour], and [Continuous

Pattern Sync

: This field displays the current state of pat-

tern sync during a test. If no test is in progress, NO TEST is displayed. If a test is active, but the receiver is not in pattern sync, NO SYNC is displayed. If the receiver is in pattern sync, IN SYNC is displayed.

Elapsed Time:

Displays the amount of time elapsed since a

timed test began or, if completed, the total test time.

Bit Errors

: Displays the total number o f bit errors detected since the test began or since error statistics were cleared (Up to a maximum number of 999,999).

Errored Sec onds

: This field displays the number of asynchronous errored seconds that have been detected since the test began or since error statistics were last cleared. This parameter includes bit error seconds and sync loss seconds.

% EFS

: This ratio is derived from the number of error free seconds divided by the number of seconds accumulated in Elapsed Time.

Start Test:

Pressing <return> with the cursor on this field

starts the selected test pattern. TEST IN PROGRESS

appears once the test has started. To end the test, press <return> on STOP TEST.

Reset Errors:

Pressing <return> with the cursor on this

field causes the test error results to be cleared to zero.

NET/DTE Status

: These two fields display the fault status of the network and the far end DTE. They indicate current fault conditions. They do not indicate that alarm thresholds are exceeded. Status indications are described in NET/DTE Status: These two fields display the fault status of the network and the T1 DTE. They indicate current fault conditions. They do not indicate that alarm thresholds are exceeded. Status indications are described in Table 4-I.

Table 4-I Status Indications

Status Description

------- No status is available OK No errors are currently detected.

LOS A loss of signal condition exists.

OOF An out of frame condition exists or OOF codes are

received. OOS Out of Service codes are received. DTR DTR from the DTE device is false.

Near Loops Far Loops

: Displays the loop status of the near element.

: Displays the loop status of the far element.

Testing 4-3PRISM 4151

4-4 Testing

PRISM 4151

5. Operation

This chapter describes the alarm types and status for the PRISM 4151.

Interface Start-up

password is case- s ensitive.

word, note the date and time shown on your screen and contact TxPORT Technical Support. You can establish a password through the Utilities screen on page 3-10.

Once a valid password has been entered, the Main Menu screen is displayed. If you are unfamiliar with the PRISM 4151 interface, commands, and menu structure, refer to Appendix A, concerning the menu structure and operator commands.

Terminal Interface

If you do not enter a keystroke for 10 minutes, the terminal interface

automatically logs off.

If you have forgotten your pass-

, for specific information

The

Alarms

The Alarms screen (Figure 5-3) allows you to view the current alarm status of the network and the DTE lines.

NET Alarms

ment’s current network signal alarm state (Table 3-J).

: These status lines display the selected ele-

Alarms are determined by the selectable thresholds in Alarm Configuration on page 3-5.

Table 3-J NET Alarm Indicators

Alarm Description

------- No status is available None No alarm threshold has been exceeded, although

errors may exist which do not exceed thresholds.

LOSS The Loss Of Signal Seconds thresho ld is e xceed ed. OOFS The Out Of Frame Seconds threshold is exceeded. OOSS The Out Of Service Seconds threshold is exceeded.

DTE Alarms

ment’s current DTE signal alarm state (Table 3-K). Alarms are determined by the selectable thresholds in Alarm Configuration on page 3-5.

: These status lines display the selected ele-

Figure 5-3 Alarms Screen

Operation 5-1PRISM 4151

Table 3- K DTE Alarm Indicators

Alarm Description

None DTR on DTE interface is true, or the alarm has

been disabled.

DTR DTR on DTE interface is false.

Selectable thresholds in the Alarm Parameters screen and the DTR Alarm may be enabled or disabled for the ports in the Port Parameters screen.

(alarm status)

: The main body of the Alarms screen shows the current count for parameters that may be used to trigger an alarm.

The Current column displays the consecutive seconds during which the error condition has existed.

The Threshold column displays the values set in the Alarm Configuration screen (page 3 -5). Parameters having a current value equal to or greater than its non-zero threshold generates an alarm. Any parameter with a threshold value of zero is disabled from generating alarms. An alarm is declared when the current value of any parameter exceeds its non-zero threshold.

The parameters show n on the A larms screen are updated at approximately five second intervals.

Reset Alarm Registers

: Pressing <return> on (RESET)

zeros the value of all Current alarm parameters.

5-2 Operation

PRISM 4151

A.Terminal Interface

This chapter describes the screens structure and menu controls for the TxPORT PRISM 4151 terminal interface. The interface is a firmware application program embedded inside the unit.

It requires an ANSI compatible VT100 terminal (ASCII), or a computer running an ANSI terminal emulation program. The terminal interface uses ASCII BREAK and ESCAPE functions, which are implemented differently with the various terminal emulation programs.

Screen Components

Terminal interface screens have several components common to all screens (Figure A- 4).

Device Type and Revision:

PRISM 4151) and the revision control numbers are shown in the upper left corner. The first number is the hardware revision and the second number is the software revision. Information is displayed for the near end unit (connected directly to the terminal) on the t op line, and for the far end unit (connected to the network T1 interface) on the second line. Far end information is displayed only wh en activated, otherwise, information when contacting the factory with inquiries.

Date/Time:

plays the current date and time. The setting of these functions is described in the section entitl ed Ut ili tie s on page 3-10.

No Remote Access

The top right corner of the terminal scree n dis-

The device type (such as

is displayed. Refer to this

Element ID:

ID is displayed. Refer to the section entitled Management Ports on page 3-8 for information on the Element ID.

Menu Title:

general classification of functions currently accessible by the user (such as MAIN or PERFORMANCE).

Messages:

bottom of the screen.

Below the header (PRISM 4151), the Element

The menu title (third line, center) den otes the

Diagnostic messages may be displayed at the

Cursor Controls

The terminal interface utilizes a highlighted cursor to make selections from menus and select fields within screens to be operated on. The cursor is moved in different ways, depending on the terminal emulation program used. Most programs allow use of the <tab> and <shift- tab> keys. Others allow use of the arrow keys. Once a field is highlighted, it is manipulated as described in Section .

For keyboards which do not have these standard keys or have only some of them, an alternate set of cursor control commands is provided. Each command is performed by pressing a letter key while holding down the <Ctrl> key.

Figure A-4 Terminal Interface Layout

Terminal Interface A-1PRISM 4151

Alternate commands may be freely mixed with the keyboard

Alarms

MAIN

Log

Off

LogOnMaintenance

Configuration

Utilities

DTE Port Parameters

Alarm Parameters

TCP/IP Parameters

SNMP Parameters

Management Ports

Summary

Figure A-5 Terminal Interface Menu Structure

DDS Network Parameters

commands at your discretion.

Table A-L Keyboard / Alternate Commands

Keyboard Command Alternate Command

< left arrow > < Ctrl - S >

< right arrow > < Ctrl - D >

< up arrow > < Ctrl - E >

< down arrow > < Ctrl - X >

< backspace > < Ctrl - H >

< delete > < Ctrl - Z >

Field Types

Each screen is made up of fields. The two basic field types are user-selectable and display-only. If the highlighted cursor can be moved to a field, it is a user selectable field. All other fields are for display only. User selectable fields allow for changes to be made or commands to be executed.

Fields without brackets or parenthesis are display-only. They cannot be changed on the screen. Most user selectable fields are enclosed in brackets or parenthesis and are described in the following paragraphs.

Fields enclosed in brackets [ ] offer the user a list of selections from which to choose. The selections may be toggled by pressing the <spacebar>. Each time it is pressed, a new item appears. When the appropriate choice is displayed, press <return> to select it.

Fields enclosed in parenthesis ( ) are manipulated by one of the following two methods:

1. Pr essing <return> on such fields as (R eset) and (Star t

Test) simply execute the function.

Menu Structure

The Main Menu screen lists the functional user accessible menus. To activate a menu, highlight the desired selection and press <return>. To exit this or any subsequent menu, press <esc>. If the Main Menu is exited, the terminal interface program terminates. This is a valid way to end a session. If any other menu is exited, the previous screen is returned. The menu structure (Figure A- 5) shows all the screens accessible from the Main Menu.

If you do not enter a keystroke for 10 minutes, the terminal interface

logs off automatically.

2. The most common type of field in parenthesis accepts

typed input in the form of letters and / or numbers. Typing characters when the field is highlighted causes the current entry to be replaced with the new characters. To edit an existing entry rather than replace it, press the <right arrow> key to move the cursor to the point that needs editing. Characters may then be inserted or deleted. Typed data is always inserted rather than typed over. If the field is full, though, at least one character must be deleted to add another.

Many fields of this type may also be toggled by pressing the <spacebar>. Other fields are range checked, where the user is not allowed to exit with an illegal value set.

Any screen may be redisplayed (or refreshed) by pressing <Ctrl - U>.

Terminal Interface A-2

PRISM 4151

B.Pinout Tables

This appendix displays the pinout assignments for each port and option on the rear of the PRISM 4151.

LAN Port - Ethernet

Pin Signal Name

1 D ata Out 2 D ata Out 3 Data In 6 Data In

LAN Port - Token Ring

Pin Signal Name

3 D ata Out 4 Data In 5 Data In 6 D ata Out

SLIP / SUPV Port - PC

Pin Signal Name DTE Pin

1 DTR Out DCD 1 2 RTS Out CTS 8 3 Frame Gnd Frame Gnd 5 4 Data Out RXD 2 5Data In TXD 3 6 Signal Gnd Signal Gnd NC 7CTS In RTS 7 8 DCD In DTR 4

Net

Pin Signal Name

1 Data Out (Tip) 2 Data Out (Ring)

3-6 Not Used

7 Data In (Tip) 8 Data In (Tip)

Data Port

Signal Name V.35 Acronym

Frame Ground A FG Transmit Data P, S TD Receive Data R, T RD Request to Send C RTS Clear to Send D CTS Data Set Ready E DSR Signal Ground B SG Data Carrier Detect F DCD Transmit Clock Y, AA TXC Receive Clock V, X RXC Local Loopback J LL Data Term Ready H DTR Remote Loopback BB RL Terminal Timing U, W TT, EXC

SLIP / SUPV Port - Modem

Pin Signal Name DCE Pin

1 DTR Out DTR 20 2 R TS Out RTS 4 3 Frame Gnd Frame Gnd 1 4 Data Out TXD 2 5 Data In RXD 3 6 Signal Gnd Signal Gnd 7 7 CTS In CTS 5 8 DCD In DCD 8

Pinout Tables B-1PRISM 4151

B-2 Pinout Tables

PRISM 4151

C.SNMP Ag e nt

This unit has an embedded SNMP agent which can be accessed either through the built in SLIP interface or the optional Network Interface Card (NIC). The NIC can either be an Ethernet or Token Ring interface. With these interfaces, you can gain access to the PRISM 4151 through TELNET or SNMP. The TELNET session is simply a connection to the user interface of the unit.

SNMP access to the unit is limited to Management Information Bases (MIBs) supported by the embedded SNMP agent. The SNMP agent supports MIB-II (RFC 1213). This appendix describes in detail how the embedded SNMP agent conforms to the RFC.

RFC 1213

This RFC defines the MIB-II specif i cation .

systemTable

sysDescr:

This entry is a textual description of the entity. It should include the full name and version identification of the system's hardware type, software operating-system, and networking software. It is mandatory that this only contain printable ASCII characters. For the PRISM 4151, this value returns the string

sysObjectID:

The vendor's authoritative identification of the network management subsystem contained in the entity. This value is allocated within the enterprises subtree (1.3.6.1.4.1) and provides an easy and unambiguous means for determining ‘what kind of box' is being managed. For example, if vendor ‘Flintstones, Inc.' was assigned the subtree

1.3.6.1.4.1.4242, it could assign the identifier

1.3.6.1.4.1.4242.1.1 to its ‘Fred Router'. For the PRISM 4151, this value returns the Object Identifier of

1.3.6.1.4.1.254.1.1

sysUpTime:

The time (in hundredths of a second) since the network management portion of the system was last re-initialized.

sysContact:

The textual identification of the contact person for this managed node, together with inform ation on how to contact this person. The string defaults to ‘no system contact.’

sysName:

An administratively-assigned name for this managed node. By convention, this is the node's fully-qualified domain name. The default is ‘no system name’

sysLocation:

(read-only)

TxPORT SNMP Agent

(read-only)

(read-w rite)

(read-write)

The physical location of this node (e.g.,‘telephone closet, 3rd floor'). The default is ‘no system location’

sysServices:

(read-only)

A value which indicates the set of services that this entity primarily offers. The value is a sum. This sum initially takes the value zero. Then, for each layer, L, in the range 1 through 7, that this node performs transactions for, 2 raised to (L - 1) is added to the sum. For example, a node which performs primarily routing functions would have a value of

(3-1)

4 (2 cation services would have a value of 72 (2

). In contrast, a node which is a host offering appli-

(4-1)

+ 2

(7-1)

Note that in the context of the internet suite of protocols, values should be calculated accordingly:

1 physical (e.g.,repeaters) 2 datalink/subnetwork (e.g., bridges) 3 internet (e.g., IP gateways) 4 end-to-end (e.g., IP hosts) 7 applications (e.g., mail relays)

For systems including OSI protocols, layers 5 and 6 may also be counted. The PRISM 4151 returns a value of 72 representing a host offering application services.

ifTable

ifNumber:

The number of network interfaces (regardless of their current state) present on this system. There are always a minimum of 3 (SLIP, Network - DDS, and Port 1). The optional interface is an NIC (Ethernet or Token Ring) card.

ifIndex:

A unique value for each interface. Its value ranges between 1 and the value of ifNumber. The value for each interface must remain constant at least from one re-initialization of the entity's network management system to the next re-initialization.

ifDescr:

A textual string containing information about the interface. This string should include the name of the manufacturer, the product name and the version of the hardware interface.

(read-only)

With NIC Without NIC 1

- SLIP

- NIC

- DDS

- DTE Port

- SLIP

- DDS

- DTE Port

(read-only)

‘SLIP Interface’ ‘Ethernet NIC’

face

- returned for the SLIP Interface

- returned for the NIC, for Ethernet inter-

SNMP Agent C-1PRISM 4151

ifType:

‘Token Ring NIC’ ‘DDS Network Interface’

face

‘DDS DTE RS-232/V.35 Port’

(read-only)

- returned for the NIC, for Token Ring

- returned for the DDS inter-

- returned for DTE Port

The type of interface, distinguished according to the physical/link protocol(s) immediately ‘below' the network layer in the protocol stack.

ifMtu:

other(1) regular1822(2) hdh1822(3) ddn-x25(4) rfc877-x25(5) ethernet-csmacd(6) iso88023-csmacd(7) iso88024-tokenBus(8) iso88025-tokenRing(9) iso88026-man(10) starLan(11) proteon-10Mbit(12) proteon-80Mbit(13) hyperchannel(14) fddi(15) lapb(16) sdlc(17) ds1(18) e1(19) basicISDN(20) primaryISDN(21) propPointToPointSerial(22) ppp(23) softwareLoopback(24) eon(25) ethernet-3Mbit(26) nsip(27) slip(28) ultra(29) ds3(30) sip(31) frame-relay(32)

(read-only)

- none of the following

Ethernet NIC

Token Ring NIC

- european equiv. of T-1

- proprietary serial Port 1

- CLNP over IP [11]

- XNS over IP

- generic SLIP

- ULTRA technologies

- T-3

- SMDS

The size of the largest datagram which can be sent/received on the interface, specified in octets. For interfaces that are used for transmitting network datag rams, this is the size of

the largest network datagram that can be s ent on the interface.

296

- returned for the SLIP Interface

1500

- returned for the NIC interface (if Ethernet)

2000

- returned for the NIC interface (if Token Ring)

- returned for the DDS and Port 1 interfaces

ifSpeed:

(read-only)

An estimate of the interface's current bandwidth in bits per second. For interfaces which do not vary in bandwidth or for those where no accurate estimation can be made, this object should contain the nominal bandwidth

9600

- returned for the SLIP Interface at 9600 baud

19200

- returned for the SLIP Interface at 19200 baud

38400

- returned for the SLIP Interface at 38400 baud

56000

- returned for the SLIP Interface at 56000 baud

10000000 4000000 16000000

Mbps)

ifPhysAddress:

- returned for the NIC (if Ethernet)

- returned for the NIC (if Token Ring at 4 Mbps)

- returned for the NIC (if Token Ring at 16

(read-only)

The interface's address at the protocol layer immediately ‘below' the network layer in the protocol stack. For interfaces which do not have such an address (e.g., a serial line), this object should contain an octet string of zero length. One exception is the NIC interface which returns the physical address of the unit

ifAdminStatus:

(read-write)

The desired state of the interface. The testing(3) state indicates that no operational packets can be passed. For the PRISM 4151, you do not have write permission.

up(1)

- Ready to pass packets

down(2) testing(3)

ifOperStatus:

- In test mode

(read-only)

The current operational state of the interface. The testing(3) state indicates that no operational packets can be passed.

up(1)

- Ready to pass packets. This value is returned if

th e inte r fa c e is a c t iv e, a n d do e s not h av e a te s tin g s ta t u s.

down(2) testing(3)

DDS and DTE interfaces if the interface has a test loop or BERT active.

IfLastChange:

- Returned if the interface is not enabled

- In test mode. This value is returned for the

(read-only)

The value of sysUpTime at the time the interface entered its current operational state. If the current state was entered prior to the last re-initialization of the local network management subsystem, then this object contains a zero value.

C-2 SNMP Agent

PRISM 4151

The PRISM 4151 returns the time in hundredths of a second since the interface was changed, or reset

DDS

The TxPORT enterprise DDS MIB contains the following objects that allow unit management from any S NMP manag er.

DDS Network Objects

ddsNetRate:

This object allows you to verify or set the identifier of the current DDS network rate. Only the

ddsNetRate64 000

controlled by the changed independently.

ddsNetMode:

This variable describes mode in which data is being sent from the DDS unit back towards the network. Changing the value of this variable can cause a loss of remote communications.

ddsNetModeNormal(1) ddsNetModeProprietary(2)

DDS network is in a pr oprietary mode to al low for remo te communications, rate adaption, and SYNC to ASYNC modes.

ddsNetMode64KClearChannel(3)

DDs-II, where the line rate is 72K, the data rate is 64K, and there is no secondary channel.

ddsNetSendCode:

This variable describes what type of test code is being sent from the DDS unit back towards the network.

ddsNetSendNoCode(1) ddsNetSendOtherTestPattern(2)

stress pattern than 511

ddsNetSend511Pattern(3)

toward the network

ddsNetLoopConfig:

This variable allows you to set or view the current loop state of the DDS network interface.

(read-write)

apply to the PRISM 4151. Both rates are

ddsNetMode

ddsNetRate2400 ddsNetRate 4800 ddsNetRate 9600 ddsNetRate 19200 ddsNetRate38400 ddsNetRate56000 ddsNetRate64000

(read-write)

ddsNetNoLoop(1)

ddsNetRate56000

setting and cannot be

- 2400bps

- 4800bps

- 9600bps

- 19200bps

- 38400bps

- 56000bps

- 64000bps

- normal data mode of operation.

- Data being sent out on the

- A special case of

- Normal data mode of operation

- Sending some other

- Sending 511 stress pattern

- Normal data mode of operation

and

ddsNetLocalLoop(2)

DDS network switch activated loop

ddsNetLineLoop(3)

DDS network sealing current activated loop

ddsNetOtherLoop(4)

active

ddsNetFarEndLineLoop(5)

a line loop active

ddsNetStatus:

(read-only)

- Data is looped back toward the

- Other loop than listed above is

- Far end unit currently has

Reports current operational status of the network interface

ddsNetNoAlarm(1)

rent alarms

ddsNetLOS(2)

nal

ddsNetOOS(3)

Out Of Service codes

ddsNetOOF(4)

Frame condition

ddsNetTimingSource:

- DDS network interface has no cur-

- DDS network interface has Loss Of Sig-

- DDS network interface is receiving

- DDS network interface has Out Of

(read-write)

Allows you to select or verify the current timing source for the DDS network interface.

ddsNetTimingNet(1)

DDS network interface timing

ddsNetTimingInt(2)

network interface

ddsNetTimingDTE(3)

device for network interface timing

ddsNetRemComm:

- Unit depend ent upon network fo r

- Unit supplying timing for DDS

- Unit dependent upon DTE

(read-)only

Reports status of the remote communications link

ddsNetRemCommEnabled(1)

tions can be carried out end to end

ddsNetRemCommDisab led(2)

tions are not allowed

ddsNetRemCommNotAvailable(3)

support remote communications

ddsNetCircuitAssur:

(read-write)

- Remote communica-

- This unit does not

Allows you to enable or check setting of the circuit assurance option. Circuit Assurance does not apply to the DDS-II operating mode.

ddsNetCircuitAssurEnabled(1)

enabled and the integrity of the DDS loop will be maintained

ddsNetCircuitAssurDisabled(2)

disabled

ddsNetCircuitAssurNotAvailable(3)

support Circuit Assurance

ddsNetAntiStrTimer:

(read-wr ite)

- Circuit Assurance is

- This unit does not

This variable describes the current setting for the anti streaming timer .

SNMP Agent C-3PRISM 4151

ddsNetAntiStrTimerOff(1) ddsNetAntiStrTimer10(2)

set to 10 seconds

ddsNetAntiStrTimer30(3)

set to 30 seconds

ddsNetAntiStrTimer60(4)

set to 60 seconds

ddsNetLoopMode:

(read-write)

- AntiStreaming Timer is off

AntiStreaming Timer is

Allows you to review or set Loop Mode to unidirectional or bidirectional

ddsNetLoopModeUnidirectional(1)

V54 loops will be unidirectional Local loop will be bidirectional

ddsNetLoopModeBidirectional(2)

bidirectional

- Line, Data, and

- All loops will be

DDS DTE Objects

ddsDteRate:

Allows you to verify or select the DDS DTE data rate. Only the

ddsDteRate56000

PRISM 4151. Both rates are controlled by the setting and cannot be changed independently.

ddsDteFormat

This variable describes the current operations format of the DTE interface. Only the PRISM 4151.

ddsDteParity:

Allows you to verify or select parity for the DTE interface. This variable is only valid when the DTE Mode is set to ASYNC. For the PRISM 4151, the value always returns

ddsDteParityNotAvail

(read-write)

and

ddsDteRate64000

apply to the

ddsNetMode

ddsDteRate2400 ddsDteRate4800 ddsDteRate9600 ddsDteRate19200 ddsDteRate38400 ddsDteRate54000 ddsDteRate56000 ddsDteRate57600 ddsDteRate62000 ddsDteRate64000

- 2400bps

- 4800bps

- 9600bps

- 19200bps

- 38400bps

- 54000bps

- 56000bps

- 57600bps

- 62000bps

- 64000bps

(read-write)

ddsDteFormatSync

ddsDteFormatSync(1)

operate in Synchronous clocking fo r m at

ddsDteFormatAsync(2)

to operate in the Asynchronous clocking format

ddsDteFormatNotAvail(3)

format is not available

- DTE interface is currently set to

- DTE interface is currently set

- DTE interface operating

applies to the

(read- write)

. This value cannot be modified.

ddsDteParityNone(1)

no parity bit checking or generation

- DTE interface is currently set for

ddsDteParityOdd(2)

odd parity

ddsDteParityEven(3)

even parity

ddsDteParityMark(4)

mark parity

ddsDteParitySpace(5)

for space parity

ddsDteParityNotAvail(6)

interface is not available.

ddsDteStopBit:

(read- write)

- DTE interface is currently set for

- DTE interface is currently set

- Parity setting on the DTE

Allows you to verify or set the stop bit setting for the DTE interface. This variable is only valid when the DTE interface is set to ASYNC. For the PRISM 4151, the value always returns

ddsDteStopBitNotAvail

. This value cannot be modi-

fied .

ddsDteStopBit1(1)

ate in the ASYNC mode with 1 stop bit

ddsDteStopBit2(2)

ate in the ASYNC mode with 2 stop bits

ddsDteStopBitNotAvail(3)

available. The DTE interface is probably configured for synchronous operation.

ddsDteSendCode:

- DTE interface is configured to oper-

- Stop bit information is not

(read- write)

Allows you to start or verify the setting of the DTE BERT. This variable describes what type of test code is being sent from the DDS unit back towards the DTE. For the PRISM 4151, only the

ddsDteSendNoCode

applies. Other values are

accepted but not acted upon.

ddsDteSendNoCode(1) ddsDteSendOtherPattern(2)

pattern than 511

ddsDteSend511Pattern(3)

toward the DTE

ddsDteLoopConfig:

(read- write)

- Normal data mode of operation

- Sending some other stress

- Sending 511 stress pattern

Allows you to set a DTE loop or verify the status of a DTE loop

ddsDteNoLoop(1) ddsDteV54Loop(2)

DDS network and toward the DTE l oop activated via V.54 loop codes

ddsDteDataLoop(3)

DTE loop activated via data loop code received from the network

ddsDteOtherLoop(4)

other than one of the above listed loops active

ddsDteFarEndV54Loop(5)

loop current on it's DTE interface

ddsDteStatus:

(read- on ly)

- Normal data mode of operation

- Data is looped back toward the

- DTE interface has some loop

- The far end unit has a V.54

Reports the current operations status of the DTE interface

C-4 SNMP Agent

PRISM 4151

ddsDteNoAlarm(1)

alarms

ddsDteDtrAlarm(2)

declared a loss of DTR alarm

ddsDteInterfaceType:

- DTE interface has no current

- DTE interface has currently

(read- only)

Reports the DTE interface type being used

ddsDteInterfaceV35(1) ddsDteInterface232(2) ddsDteInterfaceOther(3)

other than listed above

ddsDteInterfaceNotAvail(4)

available

ddsDteV54Loop:

(read- write)

- DTE interface is a V.35

- DTE interface is a RS232

- DTE interface is something

- DTE interface type is not

Allows you to select or verify the operational state of the V.54 option

ddsDteV54LoopEnabled(1)

respond to V.54 loop codes

ddsDteV54LoopDisabled(2)

to V.54 loop codes

ddsDteRtsCtsDelay:

(read- write)

- The unit will currently

- The unit will not respond

Allows you to verify or select the delay used in the transition time on RTS and CTS. For the PRISM 4151, only the

ddsDteRtsCtsDelayNor mal

and

ddsDteRtsCtsDelayLong

option are valid.

ddsDteRtsCtsDelayOff(1) ddsDteRtsCtsDelayNormal(2)

amount based on the data rate and the hardware

ddsDteRtsCtsDelayLong(3)

from the normal delay

ddsDteRtsCTSDelayUserDefined(30)

user defined to some other value, when this value is set the delay is se t to 30ms

ddsDteRtsStatus:

(read- only)

- Delay is turned off

- Delay is a normal

- Delay is generally do uble d

- Delay has been

Reports the current status of the RTS control lead

ddsDteRtsStatusHigh(1)

active HIGH state

ddsDteRtsStatusLow(2)

active LOW state

ddsDteCtsStatus:

(read- only)

- RTS control lead is in the

Reports the current status of the CTS control lead

ddsDteCtsStatusHigh(1)

active HIGH state

ddsDteCtsStatusLow(2)

active LOW state

ddsDteDcdStatus:

(read- only)

- CTS control lead is in the

Reports the current status of the DCD control lead

ddsDteDcdStatusHigh(1)

active HIGH state

- DCD control lead is in the

ddsDteDcdStatusLow(2)

active LOW state

ddsDteDtrStatus:

(read- only)

- DCD control lead is in the

Reports the current status of the DTR control lead

ddsDteDtrStatusHigh(1)

active HIGH state

ddsDteDtrStatusLow(2)

active LOW state

ddsDteDsrStatus:

(read- only)

- DTR control lead is in the

Reports the current status of the DSR control lead

ddsDteDsrStatusHigh(1)

active HIGH state

ddsDteDsrStatusLow(2)

active LOW state

ddsDteDsrControl:

(read-write)

- DSR control lead is in the

Allows you to review and configure the DTE DSR lead (Circuit 107/CC)

ddsDteDsrControlTestOff(1)

the unit is in test

ddsDteDsrControlForcedOn(2)

of any unit condition

ddsDteDcdControl:

(read-write)

- DSR is on except when

- DSR is on regardless

Allows you to review and configure the DTE DCD lead (Circuit 109/CF).

ddsDteDcdControlIdleOff(1)

the unit is receiving Idle Code from the network.

ddsDteDcdControlForcedOn(2)

of any unit condition

ddsDteRtsControl:

(read-write)

- DCD is on except when

- DCD is on regardless

Allows you to review or configure the DTE RTS and CTS leads (Circuit 105/CA and 106/CB).

ddsDteRtsControlNormal(1)

and Antistreaming control CTS

ddsDteRtsControlForcedOn(2)

on regardless of any unit condition

ddsDteDtrAlarm:

(read-w rite)

- RTS, Circuit Assurance,

- RTS is ignored, CTS is

Allows you to enable or disable monitoring on the DTR lead (Circuit 108/CD).

ddsDteDtrAlarmEnabled(1)

dition

ddsDteDtrAlarmDisabled(2)

ddsDteRLDetect:

(read-write)

- DTR low is an alarm con-

- DTR is ignored

Allows you to override the DTE RL input pin on the Remote Loopback lead (Circuit 140/RLB)

ddsDteRLDetectEnabled(1)

Remote V. 54 Loop

ddsDteRLDetectDisabled(2)

ddsDteLLDetect:

(read-write)

- RLB high activates the

- RLB is ignored

SNMP Agent C-5PRISM 4151

Allows you to override t he DTE LL input pin o n the Local Loopback lead (Circuit 141/LLB).

ddsDteLLDetectEnabled(1)

Local Loop

ddsDteLLDetectDisabled(2)

- LLB high activates the

- LLB is ignored

TxPORT

The TxPORT enterprise proprietary MIB contains objects that allow unit manag ement from any S NMP manager. Far End parameters can only be retrieved when the unit is configured for proprietary mode of operation on both ends of the network.

companyName

Displays the company name (

companyStatement

Displays the TxPORT vision statement.

companyStreetAddr

Displays the TxPORT headquarters street address (

plex Circle

companyCityState

Displays the TxPORT headquarters location (

35758

companyTechService

Displays the TxPORT Technical Support telephone number (

1-800-285-2755

companyInHouseSales

Displays the TxPORT Sales telephone number (

0085

companyEmailAddr

Displays the mail address to obtain information concerning TxPORT and its products (

productModelNumber

Displays the product m odel nu mber for th e device cur rently being queried (

productModelDescr

Displays a brief description of the product (

DSU

productElementId

Displays the element ID of the unit.

productSoftwareRev

Displays the current unit software revision.

productHardwareRev

Displays the current unit hardware revision.

productSerialNum

Displays the unit’s serial number.

(read-only)

Model 4151

(read-only)

TxPORT, Inc.

info@txport.com

127 Jet-

Madison, AL

1-800-926-

DDS CSU/

productPhysicalAddress

Displays the unit’s physical ethernet or token ring address.

productNmsAddress

Displays the unit’s NMS address.

optionCardDesc

Displays a brief description of the option card.

optionCardSoftwareRev

Displays the software revision of the option card.

optionCardHardwareRev

Displays the hardware revision of the option card.

optionCardPhysicalAddress

Displays the physical address tied to the option card.

(read-only)

C-6 SNMP Agent

PRISM 4151

Verilink PRISM 4151 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual