Installing Processor Data Modules (Pdms) - AT&T 75 Wiring Manual

66-TYPE HARDWARE

Installing Processor Data Modules (PDMs)

Requirements
The interface between the system and many types of data equipment is provided by a TN754
Digital Line circuit pack connected to a PDM. The following types of data equipment can be
connected by a PDM:
Applications Processor/Adjunct—System 75 Only
Applications Processor/Terminal—System 75 Only
Audio Information Exchange/Adjunct—V3 Only
Audio Information Exchange/Terminal—V3 Only
Call Management System—V3 Only
Distributed Communications System (DSC)—V2 and V3)
Property Management System—V3 Only
Journal Printer—V3 Only
Customer Provided Terminals and Host Computers
Station Message Detailed Recording
PDMs are connected to TN754 Digital Line circuit packs and are mounted individually or in
a 71A data mounting. Each 71A data mounting can contain eight PDMs. This manual
contains only information for connection to the PDMs from the system switch. PDM
installation and testing information is contained in AT&T System 75 User's Guide—
Processor Data Module, 999-700-028.
The data mounting is connected by a B25A cable through the cross-connect field to a Digital
Line circuit pack. The PDMs can also be mounted and connected individually through the
cross-connect field.
Installation
Connection to Data Mounting (Figure 4-96)
1 . From Data Module Form, determine port assignment of PDMs:
2 .
Connect B25A cable to DCP-LINE connector on rear of data mounting.
3 .
Run and connect cable from data mounting to station side of cross-connect field.
4 . write lead designations on the 66-type connecting blocks in the yellow field using a
felt-tipped pen.
5 .
Connect jumper wires at cross-connect field (see Figure 4-96).
6 .
Administer per AT&T System 75 and System 75 XE Implementation and A T & T
System 75 and System 75 XE Administration.
4-146
EXAMPLE: Port Number B 02
01
Carrier Slot Circuit