282Chapter 11: Peripheral device cabling interface

Dial-up modem

If you want to dial up to ports on the IPE Module or the Application Module, you can use any one of five modems: Universal Data Systems (UDS) 2440 A/D modem, EC224 A/D modem, Ven-Tel 2400 baud modem, Ven-Tel 2400 Plus II baud modem, and Ven-Tel 9600 plus baud modem. The following pages show the locations and settings of the switches on these modems.

It is important to note that regardless of which modem you select, the identical model of modem must exist at both ends for dial-up capability to work properly. For example, if the remote terminal or printer has a UDS EC224 A/D modem, the modem at the IPE Module or Application Module site must also be a UDS EC224 A/D modem.

All of these modems (at the Application Module site) are connected to a VME multi-port cable. Attach one VME multi-port receptacle, or (at the IPE Module site) the appropriate port on the NT1R03AA or NT1R03BA cable, to a null-modem adapter, then connect the adapter to the DB25 socket on the modem. At the device end, connect the terminal or printer to the modem using a straight DB25 cable.

Figure 83

Universal Data Systems (UDS) 2440 A/D modemÑfront and rear view

YES

NO

TALK/DATA

MR/RI TR HS MC RD TD

2440

WARNING Ð FOR CONTINUED

PROTECTION AGAINST FIRE HAZARD, REPLACE WITH

TELSET TELCO SAME TYPE & RATING OF FUSE DTE

ON

POWER

OFF

115VAC 1/4 AMP 60 HZ

553-3202-210 Standard October 1998

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Meridian America Link/Customer Controlled Routing manual Dial-up modem, Yes Talk/Data Mr/Ri Tr Hs Mc Rd Td, 2440