Aiphone PG-20C, PG-50C manual TD-H/Z Telephone Type System, Microprocessor Systems, Td-H/Z, GND TB1

4 WIRING DIAGRAMS - CONT.

TD-H/Z TELEPHONE TYPE SYSTEM

TD-H/Z	PG-nC
	Paging Amplifier
	Page C/2
Terminal #	7

The TD-H and TD-Z system uses either the built-in PD-1 (Standard) or the PD-2 (Talkback) adaptors by setting switches 7 & 8 as follows:

			PS-12C
+	+12VDC	8	(+)
	(–)
–			12 VDC
		9	(–)

TB1 to 70V speakers

PD-1 (Standard)

7 8

ON

PD-2 (Talkback)

78 ON

Note: To prevent any possible oscillation, ensure that the speaker wires are kept away from any input wiring connected to the terminal strip .

For each paging zone required, use the appropriate sized PG-C amplifier.

MICROPROCESSOR SYSTEMS

(RCX, YKX)

Central		PG-nC
Exchange Unit		Paging Amplifier
		Page C/2
	P1	7
+		+24VDC
		8
	GND	GND
		9

TB1

When paging from a microprocessor based system (RCX, YKX), use the built-in MC-A adaptor. Set switches 7 & 8 as follows:

MC-A

7 8

ON

to 70V speakers

Note: To prevent any possible oscillation, ensure that the speaker wires are kept away from any input wiring connected to the terminal strip .

For each paging zone (up to a total of four), use the appropriate sized PG-C amplifier.

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