Paradyne COMSPHERE 3821PLUS User manual

COMSPHERE

3821

Plus

MODEM

QUICK REFERENCE

Document No. 3821-A2-GL10-00

Printed in U.S.A.

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revise this publication and to make changes from time to time in the contents hereof

without obligation of Paradyne Corporation to notify any person of such revision or

changes.

Changes and enhancements to the product and to the information herein will be

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Warranty, Sales, and Service Information

Contact your local sales representative, service representative, or distributor directly for

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installation, documentation, training, distributor locations, or Paradyne worldwide office

locations, use one of the following methods:

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COMSPHERE 3821

Plus

Modem

Quick Reference

Document Number 3821-A2-GL10-00

December 1998

Product Documentation on the World Wide Web

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Technical Manuals

→

Business Class Analog Modems

Select the following document:

3821-A2-GB30

COMSPHERE 3821Plus Modem User’s Guide

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Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)

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3821Plus Installation

A typical 3821

Plus

installation requires the following equipment:

Eight 3821

Plus

cards

One DTE interface assembly with 24 ports

One Network Interface Module (NIM) with a 50-position short ribbon cable

Three DTE (RS-232D) cables or three 8-position modular cables with six 8-position

modular to DB25 adapters for each 3821

Plus

card

One 50-position to network interface cable for each NIM

A 66A-punchdown block or RJ11 gang box

If any hardware components are damaged, notify your sales representative.

Before installing your modem, read the

Important Safety Instructions

on page 21

Install the Carrier

The 3821

Plus

card resides in a COMSPHERE 3000 Series Carrier. The carrier must be

installed in a rack before the modem cards can be installed in the carrier.

The 3821

Plus

card requires a Shared Diagnostic Control Panel (SDCP) for control and

configuration of individual modems. It also requires a Shared Diagnostic Unit (SDU) if

the modems will be under control of an NMS, or if the SDCP is used for more than one

carrier. Instructions for the installation of the SDCP and SDU, as well as the 3000

Series Carrier and its power supply, can be found in the

COMSPHERE 3000 Series

Carrier Installation Manual

, Document Number 3000-A2-GA31.

Install the NIM

A NIM can be installed on the left or right side of the back of the 3000 Series Carrier.

Procedure

1. If you are installing a NIM on the right side of the carrier, press it onto the

connectors P24 and P23. If you are installing a NIM on the left side of the carrier,

press it onto the connectors P26 and P25.

2. Fasten the NIM to the carrier with the four standoffs provided.

3. Position the NIM cover over the NIM.

4. Fasten the NIM cover in place with the four screws provided.

P26 P25

P24 P23

P20 P19

J2 P22 J1 P21

98-14854b

TO P23

OR P25 TO P24

OR P26 NETWORK

INTERFACE

MODULE

(NIM)

NIM COVER

STANDOFF

Cable the NIM

Connect one end of the short ribbon cable to the 50-pin connector at the bottom of the

NIM. Connect the other end to P21 (on the right side of the carrier) or P22 (on the left

side of the carrier).

Connect a network interface cable to the 50-pin connector in the middle of the NIM.

Connect the other end to the dial or leased-line interface. This may be an RJ11 gang

box or a 66A-punchdown block.

495-14798

NETWORK INTERFACE

CABLE

P21 or P22

SHORT

RIBBON

CABLE

A 2-wire leased line connection to a JM8 interface requires a 6-position to 8-position

crossover cable, such as Paradyne Part Number 3000-F1-006, as shown in the

following diagram. See the User’s Guide for further information.

Attach the DTE Interface Assembly

The 8-slot DTE interface assembly can be mounted on the left or the right side of the

carrier. If you are installing only one interface assembly, it must be mounted on the

same side you installed the NIM.

Procedure

1. Feed the eight tabs at the bottom of the DTE interface assembly into the slots on

the left or right side of the carrier.

2. Insert the screws provided, but do not completely tighten them.

98-14799a

3000 SERIES

CARRIER

SLOTS

TABS

BACKPLATE

ASSEMBLY

AAAAAAA

BBBBBBB

CCCCCCC

Install the Circuit Card

Slide the 3821

Plus

card into its slot in the 3000 Series Carrier. Press firmly until the

back edge of the card seats in the socket of the DTE interface assembly.

495-14797

Procedure

1. Turn the circuit pack lock until it is vertical, locking the 3821

Plus

card in place.

2. When all cards are installed and locked in place, tighten the screws on the DTE

interface assembly.

Front Panel

495-14800

Connect the DTE

To connect the DTE to the modem, you can use two DB25 to 8-position modular

adapters and an 8-pin RJ45-type modular cable instead of an RS-232 cable with DB25

connectors. Because of the large number of cables required for typical 3821

Plus

installations, the slimmer modular cable is recommended.

The connectors on the DTE interface assembly are labeled, from top to bottom, A, B,

and C. These markings show which modem on a card is associated with each

connector.

"Procedure

1. Connect the DB25 adapter or the connector on an RS-232 DTE cable to one of the

DB25 connectors on the DTE interface assembly. Use a small screwdriver to

fasten the connector to the backplate.

2. Connect the DB25 adapter or connector on the cable to the DB25 connector on the

DTE. Use a small screwdriver to fasten the cable to the DTE.

Install Communications Software

A computer commands and controls a modem through communications software. This

software uses the AT command set to send instructions to the modem. A dumb

asynchronous terminal, however, does not require this software since it can directly

send AT commands.

The 3821

Plus

can be used with any major communications software. Refer to your

software’s user’s guide for installation procedures.

Select Factory Configuration Options

After the modem passes the power-up self-test, configure it for operation using one of

the factory preset configurations. The 3821

Plus

modem has several factory preset

templates that contain the most commonly used configuration options (straps) for:

HAsynchronous Dial (shown as Async Dial on the SDCP)

HSynchronous Dial (Sync Dial)

HSynchronous Leased (Sync Leased, Answer or Originate mode)

HUNIX hardware network (UNIX Dial)

HCellular mobile (Cellular(Mobile)), valid only if ETC is installed

HCellular PSTN (Cellular(PSTN)), valid only if ETC is installed

Your modem is shipped from the factory with the Async Dial default configuration

options stored in memory. If Sync Dial, Sync Leased, UNIX Dial, or Cellular is more

appropriate for your configuration, then you must change the factory setting using either

the SDCP or the AT command set as described in the following sections.

Selecting Configurations Using the SDCP

The SDCP’s Liquid Crystal Display (LCD) consists of two 16-character lines which

display modem status, control functions, and configuration options as well as indicating

your location in the Top-Level menu tree.

To change the factory template for each modem using the SDCP, perform the following

steps:

Procedure

1. At the top level of the menu structure, select Modem A, B, or C by pressing F1, F2,

or F3.

2. Press the key until Configure comes into view.

3. Press the function key below Configure to select the Configure branch.

The LCD now displays Ld EditArea frm.

4. Press the key until Factory comes into view. Press the F1 key to display the

factory preset configurations.

Factory preset configurations are Async Dial, Sync Dial, Sync Leased, UNIX

Dial, and, if ETC is installed, Cellular(Mobile), and Cellular(PSTN). If Sync

Leased is selected, you must choose either Answer or Originate mode.

5. Press the key until the appropriate factory preset appears on the LCD, and

press the corresponding function key to select your choice.

6. Choose Function appears and displays the Edit and Save functions.

7. Press the F3 key (Save) to save the new factory preset configuration to one of

three configuration areas, Active (Saved), Customer 1, or Customer 2.

(These three configuration areas are nonvolatile memory locations. Active (Saved)

contains the most recently saved changes to any configuration options. In the

event of power loss, the modem retrieves these configuration options. Customer 1

and Customer 2 are user-defined configuration areas.)

The LCD now displays Sav EditArea to.

8. Press the key until the appropriate configuration area appears on the LCD,

then press the corresponding function key to select your choice. (Saving

configuration options to the Active (Saved) configuration area automatically saves

them to the Active (Operating) configuration area.) The LCD displays Command

Complete.

9. The modem is now configured with the selected factory template. Press the

key to return to the Top-Level menu.

Selecting Configurations Using

AT Commands

When using AT commands, the following criteria must be met:

HMake sure the asynchronous DTE’s communication software is configured for

10-bit character format (for example, 8 data bits, no parity, and 1 stop bit).

HMake sure the DTE (RS-232D) cable is attached to the DTE connector at

the rear of the COMSPHERE 3000 Series Carrier, and to the correct serial

communications port on the asynchronous DTE.

HOn initial power-up, the modem is in Command mode. To verify that the modem is

connected and functioning properly:

TYPE:

Press Enter. The screen displays OK.

NOTE:

If you have already changed the factory preset configuration you may have lost AT

command control. To regain AT command control, select, via the SDCP, the Async

Dial factory preset configuration

To change a factory template using AT commands, perform the following steps.

"Procedure

1. Use the AT&F&W command to load the appropriate factory configuration to the

appropriate storage area. Enter the following:

TYPE:

AT &F

(in all uppercase or all lowercase)

Where: f

is one of the following Factory configurations:

0 for Async Dial

1 for Sync Dial

2 for Sync Leased (Answer)

3 for UNIX Dial

4 for Sync Leased (Originate)

5 for Cellular (Mobile) (valid only if ETC is installed)

6 for Cellular (PSTN) (valid only if ETC is installed)

and

Where: n

is one of the following storage areas:

0 for Active (Saved)

1 for Customer 1

2 for Customer 2

2. Press Enter.

3. The selected factory configuration is saved. You can view the active configuration

with the &V command.

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