Classe Audio M-1000 Specifications download pdf (Page 9)

C2985M-A (3/11) 9

Figure 5 illustrates the wiring configuration for supervised alarm inputs.

Figure 5. Supervised Alarm Input Wiring

Unsupervised Alarms

When an alarm is configured as an unsupervised alarm, an alarm is only activated when the normal alarm

state (open or closed) changes.

Figure 6 illustrates the alarm and no alarm conditions of an unsupervised alarm input.

Figure 6. Unsupervised Alarm Conditions

Figure 7 illustrates the wiring configuration for unsupervised alarm inputs.

Figure 7. Normally Closed and Normally Open Unsupervised Alarm Input Wiring

NOTE: A normally closed alarm input can be defeated with a bypass; a normally open input can be

defeated with a cut.

1 KΩ

NORMALLY OPENNORMALLY CLOSED

BYPASS

CUT

BYPASS

CUT

GND

ALARM

GND

ALARM

GND

NO ALARM

GND

NO ALARM

GND

NO ALARM

GND

ALARM

GND

NO ALARM

GND

ALARM

NORMALLY OPENNORMALLY CLOSED

A1A1

NORMALLY OPENNORMALLY CLOSED

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Classe Audio M-1000 Specifications Page 9