Task 7B: Install a Terminal via Modems

This task describes how to connect a terminal via a modem to Admin/Port B of the MFB. (This task can also be used for remote connection to the TN2170 RS-232 connector.)

To make sure the modems that you are installing are on the list of supported peripherals, see Appendix B, ‘‘Supported Terminals and Modems/Option Settings.’’

Refer to Figure 2-10, Connecting a Terminal to the MFB via Modem, when performing this task.

SWITCH

ALARM BOARD

ALB

CABLE

TN2170

RS-232 CONNECTOR

ADMIN/

TIP/

PORT B

 

DIAL-UP

(SEE NOTE)

TERMINAL

 

MULTI-

FUNCTION

BOARD

 

 

 

 

GROUP 311

 

MODEM

RING

MFB

 

 

 

CABLE

 

 

 

 

 

 

 

 

 

Y-CABLE

 

 

 

 

MODEM

RS232

MAIN/

PORT A

 

OPTIONAL

NOTE: NULL MODEM IS REQUIRED WHEN

PRINTER

CONNECTING TO 715 BCT DCE PORT

 

Figure 2-10. Connecting a Terminal to the MFB via Modem

1.In the room where the switch and DEFINITY LAN Gateway system are located, place one modem between the DEFINITY LAN Gateway system and a telephone jack, close enough to each that the cables can easily reach. Also make sure the modem is within reach of a power outlet.

2.Connect the modem to Admin/Port B of the DEFINITY LAN Gateway system Multi-Function Board.

a.Attach one end of one of the ED-1E434 Group 311 cables to the RS-232 connector labeled Admin/Port B on the MFB Y-cable (the one connected to the fourth slot of the five system slots). Attach the other end to the female 25-pin connector on the modem.

b.Attach the connector on one end of a modular cord to the modem, and attach the other connector to a telephone outlet.

Issue 1 January 1996 2-21

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AT&T 555-230-223 manual Task 7B Install a Terminal via Modems, Connecting a Terminal to the MFB via Modem