Vizio CPU-56 Functions Which Require Additional Units, Function Additional Equipment, OCU-52A

FUNCTIONS WHICH REQUIRE ADDITIONAL UNITS

(When the Exchanges are connected by means of Tie-line.)

Those functions of the CPU-56 which require either the addition of specific units or processing in existing units are as mentioned below. Before installation and adjustment of equipment, make sure to check your system.

(For Data Transmitting and Receiving units, refer to Part 2. "Function Selection for Data Transmitting and Receiving units" Page 43.)

Function	Additional Equipment
	Required
Talk-Back from	Talk-Back Unit
paging speaker
Conference	Conference Unit
External PA Paging	Paging Interface Unit
Station Paging	Paging Interface Unit

Tieline Unit

Tieline connection

of exchanges

	Output Unit
	Frame
Data Transmitting
and Receiving Units	Frame
DT-E11 and DR-B61

Unit Model

Nos.

TKU-11

CLU-52

PIU-52/52A

PIU-52/52A

TI-52

OCU-52A

FR-510A/B

520A/B

FR-510B

520B

Remarks

Optional amplifier (10W max.) may be re- quired depending on application

External PA Equipment is required.

1.Wiring of "Station Paging Assignment Plug" located at the back of the frame of the Exchange.

2.Cutting of LMU jumper wire to split sta- tion paging system. (Refer to Service Manual for LMU-52/52A, PIU-52/52A).

Turn off the DIP switch for tieline links not used when the exchanges are connected by tielines

OCU-52 must be modified.

(Add M9, M17 and TTL IC 7475 2 pcs.)

PIU-52A and TI-52 can be mounted.

with terminal for interface output

CPU - 56

OCU - 52A

HCU - 52

SGD - 52A

DLU - 52

LMU - 52A

TI - 52

PIU-52/52A

AC POWER INDICATOR LAMP

BATTERY POWER INDICATOR LAMP

BUZZER STOP SWITCH

DS-550A

– 5 –