Avaya CMC1 사용자 설명서

An information outlet provides access to loudspeaker paging. The system side of the main 
distribution frame connects to a 909A/B universal coupler. Make provisions for the DC power 
that the 909A/B universal coupler requires, such as a 1151A, 1151A2, or other approved 
-48VDC power supply.

Six leads (T, R, SZ, SZ1, S, and S1) connect the adapter to an auxiliary trunk circuit pack 
located in a port carrier.

1. Determine port assignment of paging zone(s) from loudspeaker Paging form.

2. Identify carrier slot and label both ends of an A25D (male to male) cable.

3. Connect a cable from the 909A/B to the system side of the main distribution frame. A wiring 

block must be locally engineered.

4.

on page 343 provides details of the connections between 

the 909A/B universal coupler and the wiring blocks.

CAUTION:

Damage to the 909A/B may occur if the cable is plugged into J3 before all 
cross-connects are completed. 

5. On the 909A/B universal coupler:

●

Connect seizure control voltage of from -9 to -70 volts to the PG2/BZ2 connection (pin 2 
of J1). Switching voltage to the PG2/BZ2 connection can be from the 909’s -48-volt 
supply.

●

Connect a -48 VDC power source to the -48 and GRD terminals on the 909A/B.

6. Install patch cord/jumper wires at the main distribution frame.

7. Connect a 2-pair line cord (modular plug at one end) from the information outlet to the 

loudspeaker system.

8. Install loudspeaker equipment according to the manufacturer’s instructions.

9. Connect an approved -48 VDC power source to the -48 and GRD terminals (pins 5 and 2, 

respectively, of J3).

10. Administer the switch for the new equipment.

Note:

For additional installation information, refer to 909A/909B Universal Coupler 
Installation Instructions, which is normally shipped with the 909A/909B Universal 
Coupler.