AT&T System 75, Wiring Diagram

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CHAPTER 5. AUXILIARY EQUIPMENT INSTALLATION
Information for connecting the PDMs to the CMS and setting the PDM
option switches is contained in the 3B2 Messaging Server Installation
and Maintenance Service Manual, 585-205-110.
Installing DCS—R1V2 and R1V3
Requirements
The DCS link to the switch can be provided by either PDMs or a DS1 tie
trunk.
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●
System 75, Version 2 or 3 uses interface 1 (TN716), interface 2
(TN738), and interface 3 (TN719) as the required control circuit
packs.
System 75 XE uses the processor interface (TN765) as the
required control circuit pack.
Connections for the DCS link using PDMs is covered in the section for
installing PDMs (Figures 5-21 and 5-22). Set the PDM switches as
follows:
9600 BAUD
Switch
Setting
ON
SYNC
ON
INT ON
KYBD ON
AANS
ON
All others
OFF
The baud rate between switches may vary depending on the installation.
If the DCS link is to be provided by a DS1 tie trunk, refer to Installing
DS1 Tie Trunks.
5-43