AT&T System 85 manual Processor Data Module PDM

Processor Data Module (PDM)

Processor Data Module (PDM)

The Processor Data Module (PDM) provides a DCE interface for connection to data terminals, Station Message Detail Recording (SMDR) output device, on-premises administration terminal, Applications Processor (AP), Call Management System (CMS), Property Management System (PMS), Audio Information Exchange (AUDIX), and host computers. It also provides a DCP inter- face for connection to the digital switch.

The PDM can no longer be ordered. It has been replaced by the MPDM.

Features

The PDM offers the following features:

Synchronous or asynchronous operation

Full- or half-duplex operation for data calls up to 56 kbps

Full-duplex operation for data calls at 64 kbps

Data transmission at standard rates up to 19.2 kbps

Automatic answer option

Self-test

Physical Description

Switches

Originate/Disconnect

This switch is located on the front panel. It is used when originating and disconnecting from a call.

Self-Test

This switch is located behind the front faceplate. Pressing this button performs the self- test.

LOC LOOP/REM LOOP

This switch is located behind the faceplate. It is used to perform the Local loop test or Remote loop test.

Options

The option switches are located behind the front faceplate. There are 30 option switches, 25 for options, and 5 spares.

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