Figure 18 illustrates the wiring configuration for supervised alarm inputs.
NORMALLY CLOSED
1K
1K
UNUSED
INPUTS
1 KMUST ALSO BE WIRED
NORMALLY OPEN
1K
1K
UNUSED
INPUTS
1 KMUST ALSO BE WIRED
Figure 18. Supervised Alarm Input Wiring
Unsupervised Alarms
When an alarm is configured as an unsupervised alarm, the
Figure 19 illustrates the alarm and no alarm conditions of an unsupervised alarm input. A normally closed alarm input can be defeated with a bypass. A normally open input can be defeated with a cut.
NORMALLY CLOSED |
| NORMALLY OPEN |
| |
NO ALARM |
| +V | NO ALARM | +V |
GND |
| GND | ||
ALARM |
| +V | ALARM |
|
GND |
| GND | +V | |
ALARM |
| +V | NO ALARM | +V |
GND |
| GND | ||
NO ALARM | CUT |
| ALARM | CUT |
GND |
| +V | GND | +V |
| BYPASS |
| BYPASS |
|
Figure 19. Unsupervised Alarm Conditions
Figure 20 illustrates the wiring configuration for unsupervised alarm inputs.
NORMALLY CLOSED | NORMALLY OPEN | |||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
UNUSED INPUTS MAY BE SHORTED
UNUSED
INPUTS MUST BE LEFT UNWIRED
Figure 20. Unsupervised Alarm Input Wiring
23 |
