Paradyne COMSPHERE 3810Plus Bedienungsanleitung

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COMSPHERE 3810

Plus

Modems

Model 3980-A1-401

Installation Instructions

Document Number 3980-A2-GK42-00

June 1995

Overview

The 3810Plus modem, Model 3980-A1-401 (Figure 1),

has different installation instructions than those shown in

the COMSPHERE 3800Plus Modems User’s Guide

(3980-A2-GB30-10). The Model 3980-A1-401 modem

has a grounded universal power supply.

Use these instructions to install your modem, and keep

them with your User’s Guide.

Figure 1. 3810

Plus

Modem (Model 3980-A1-401)

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Important Safety Instructions

The following instructions are in addition to those

found on Page B of the 3800Plus User’s Guide. Read all

safety information before installing your modem.

1. This product is intended to be used with a

three-wire grounding type plug – a plug which has

a grounding pin. This is a safety feature.

Equipment grounding is vital to ensure safe

operation. Do not defeat the purpose of the

grounding type plug by modifying the plug or

using an adapter.

Prior to installation, use an outlet tester or a

voltmeter to check the ac receptacle for the

presence of earth ground. If the receptacle is not

properly grounded, the installation must not

continue until a qualified electrician has corrected

the problem.

If a three-wire grounding type power source is not

available, consult a qualified electrician to

determine another method of grounding the

equipment.

2. A rare phenomenon can create a voltage potential

between the earth grounds of two or more

buildings. If products installed in separate

buildings are interconnected, the voltage

potential may cause a hazardous condition.

Consult a qualified electrical consultant to

determine whether or not this phenomenon exists

and, if necessary, implement corrective action

prior to interconnecting the products.

3810

Plus

Modem Installation

Before installing your modem, make sure your

installation site is clean and well-ventilated. Allow space

around the modem for installing cables and telephone

cords, and make sure the modem is located within reach

of the ac power outlet. The distance between your modem

and DTE should be minimized if DTE data rates exceed

19,200 bps. Also, low capacitance cables may be

necessary for speeds greater than 19,200 bps or distances

greater than 50 feet.

The rear panel of a 3810Plus modem has the following

switches and connectors (see Figure 2):

•An ON/Off power switch.

•An 8-pin DIN type power receptacle for the

table-top power supply.

•An 8-pin modular keyed jack for 4-wire/2-wire

leased lines or external telephone set.

•A 6-pin modular keyed jack for dial (PSTN) lines.

•A 4-pin modular jack for network management

system (NMS) connection.

•A 25-pin DB-25-S receptacle for DTE interface.

DTE Connection

Use the following procedure to connect the RS-232D

cable from the modem to the DTE:

1. Make sure the modem’s rear panel power switch is

Off.

2. Connect the DB-25-P (male) connector on the

cable to the DB-25-S (female) connector labeled

DTE 1 (Figure 2) on the modem’s rear panel. Use

a small screwdriver to tighten the cable to the

modem.

3. Connect the DB-25-P connector on the cable to

the DB-25-S connector on the DTE. Use a small

screwdriver to tighten the cable to the DTE.

3810

Plus

Dial-Line Connection

Use the following procedure to connect the 3810Plus

modem to the dial network interface:

1. Insert the 6-position, 4-conductor modular plug

into the jack labeled DIAL (Figure 2).

2. Insert the other end of the modular cord into the

dial network interface (“demarc”).

3810

Plus

4-Wire/2-Wire

Leased-Line Network

Connection

Use the following procedure to connect a 3810Plus

modem to the leased-line network interface:

1. Insert the 8-position, 8-conductor modular plug

into the jack labeled LEASED (Figure 2).

2. Insert the other end of the modular cord into the

leased-line network interface (“demarc”).

3. If you intend to use dial backup, follow steps

listed in 3810Plus Dial-Line Connection section.

8-POSITION

PLUG FOR

LEASED-LINE

NETWORK

OPERATION

6-POSITION PLUG

FOR PERMISSIVE

DIAL NETWORK

OPERATION

DB-25-P

CONNECTOR

FOR DATA

TERMINAL

EQUIPMENT

OPERATION

SUB-MINIATURE,

4-CONDUCTOR

PLUG FOR

NETWORK

MANAGEMENT

SYSTEM

OPERATION POWER

SUPPLY

DTE 1LEASED DIAL NMS PWR ON OFF

POWER

CORD

Figure 2. 3810

Plus

Rear Panel

Network Management System

Connection

For the 3810Plus or 3820Plus modem, use the

following procedure to connect the modem to the network

management system interface:

1. Insert the subminiature 4-position modular plug of

the 3600 Hubbing Device (Figure 3) into the jack

labeled NMS (Figure 2).

2. Connect the 3600 Hubbing Device to the network

management system.

Refer to the 3600 Hubbing Device Feature Number

3600-F3-300 Installation Instructions for more

information. Installation for the 3810Plus modem is the

same as for the 3610 DSU.

3000HUBBING DEVICE

MODEL #3000-F3-300

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8-POSITION

MODULAR

JACKS

6 INCHES

OVERALL

4-POSITION

MODULAR

PLUG

495-13775-01

Figure 3. 3600 Hubbing Device

AC Power Supply Connection

WARNING

Power supplies from other

modems may fit into the DIN

jack, but connecting the

wrong power supply can

cause damage to the modem

or the power supply.

Use the following procedure to connect the modem to

an ac power outlet:

1. Make sure the modem’s power switch is in the Off

position.

2. Insert the power transformer’s 8-pin DIN male

connector into the modem’s rear panel power

receptacle (Figure 2).

3. Connect the power supply to a grounded ac power

outlet.

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