Philips SM30 manual Control Relay Module, Crm

		I
	3 X	2	1
CALL ( ZONE 5,6 )	6	5	4	CALL ( ZONE 1,2,3,4 )
	9 X	8	7
	1 2	1 1	1 0
MUSIC ( ZONE 5,6 )	X			MUSIC ( ZONE 1,2,3,4 )
				LS GROUP
				3
				2
				1
	3	2	1
	6	5	4
	9	8	7
	12	11	10
5				4
6

Fig. 12.3 - Input splitting

2	1
4	3
6	5
8	7
10	9
1 2	11

LBB 1288

Fig. 13 - CRM

13	CONTROL RELAY MODULE
	(CRM)	LBB 1288

The Control Relay module provides SM30 with a set of switching contacts, which can be opened or closed (dependent on the contact, and its terminations) as programmed by the installer or operator. Relays 1 to 8 have both make and break contacts. Relays 9 to 12 have make contacts. These contacts can be used to start remote equipment, such as cassette players, message loggers, etc.; to activate signalling/warning lamps; to release fire door relays; etc..

13.1Operation

Relay 1 is reserved for the indication of microprocessor errors, and cannot be used for any other function.

Relay 2 is reserved for indication of all other internal errors (modules and Call Stations), and cannot be used for any other function. Relay 3 is dedicated to the ‘Delayed Power On’ function, but may be used for other functions if Power On Delay is not required. The Delayed Power On function is intended for battery operated systems where, in order to conserve battery power, the SQ45 amplifier(s) is/are switched on only when a call is made. It causes a time delay (selectable from 2-9 seconds) between pressing the Call Station ‘Press-To-Talk’ key, the Microphone ‘on’ switch or switching-on of a Control Input and the actual activation of the call. Both sides of the normal ‘open’ contact of relay 3 are wired to the switch terminations on the SQ45 ‘DC Power’ Mate-N-Lok connector(s). The software causes the relay contacts to close (‘make’), switching on the DC power of SQ45. (See the SQ45 Instructions for Use for further details). Relay 4 is dedicated in case an external audio source connected to an input of the

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