ADTRAN 25 manual 278A Term 103A Term

INSTALLATION

5.Set switch to NORMAL position.

6.Using a D4BY (single-ended) modular cord, connect D-181321 kit of parts (Figure 2-56)to a KS-22911, L2 power supply (-48V dc).

7.Connect terminals -V and GRD on 278A adapter to D-kit.

8.If background music is desired, connect terminals Ml and M2 on the 278A Adapter to the customer-provided music source.

9.Connect the 278A adapter to a 103A connecting block, using 4-pair inside wiring cable. Make the following connections:

278A Term.	103A Term.
CT	1
CR	2
C1	5
C2	6

10.Using a D4BU cord, connect the paging system to the connecting b l o c k .

11.If you are installing a PagePac system, connect the speakers to the receptacle on the back of the PagePac system.

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