AT&T System 25 - Manual (Page 157)

INSTALLATION
Connection to ZTN76 or ZTN77 CP
PagePac 20 system with ZoneMate 9/39 and Common Control Unit (CCU)
provides up to nine/thirty-nine paging zones and multizone groups.
To connect a PagePac 20 system, make connections using the following
steps (Figure 2-58):
1.
2.
3.
4.
5.
6.
7.
Place the PagePac amplifier on the ZoneMate and the CCU.
Connect the three units as follows:
a . Plug the cord attached to the CCU into the modular jack on
the PagePac system.
b. Connect the 25-pin cable between the ZoneMate and the
C C U .
c . Plug GR Molex connector from CCU into PagePac 20.
Using a D4BU modular cord connect the jack on the back of the
CCU to the 103A connecting block.
Using 4-pair inside wiring cable, connect the 103A connecting block
to the TAE 700A block. Make the following connections:
700A Block Term. 103A Term.
T 1
R 2
Attach the speakers to the ZoneMate.
Set the switch on the CCU to LS for loop-start trunks or GS for
ground-start trunks.
For ground start trunks, connect the black lead from the 2-pair cord
supplied with PagePac 20 to the System 25 cabinet ground block.
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