Duracomm | 7
Rear Alarm Wiring
Figure 3. Alarm wiring shown with factory jumpers to silence door alarms.
B5V and Door Alarm
Alarm Status
Switch Closed
Alarm Closed - OFF
Switch Open
Alarm Open - ON
Between Digital Out (+) and (-)
Output Status
Alarm ON/LOW
Closed
Alarm OFF/HIGH
Open
Battery LVD
The ARC unit provides continuous power to the load while AC power is on. There is a seamless transfer of the load to the
battery when the AC power is unavailable. The LVD will disconnect the battery if the battery voltage drops below the
disconnect voltage. The LVD will reconnect the battery when AC power is restores and the battery voltage reaches the
reconnect voltage.
Battery Charging
ONLY charge lead-acid AGM batteries. Other types of batteries may burst causing personal injury and damage.
Figure below shows the charging curve of lead-acid AGM batteries and the status of the charger at different LED color on
the front panel.
Figure 4. Battery charging curve.
1. AC Fail - NO
2. AC Fail - COM
3. AC Fail - NC
4. Charger Fail - NO
5. Charger Fail - COM
6. Charger Fail - NC
7. Battery at 30% - NO
8. Battery at 30% - COM
9. Battery at 30% - NC
10. Battery Fail - NO
11. Battery Fail - COM
12. Battery Fail - NC
13. Batt. Supervisory (+)
14. Batt. Supervisory (-)
1
3
5
7
9
11
13
2
4
6
8
10
12
14
15
17
16
18
19
21
20
22
15. +5V
16. +5V
17. Door 1
18. Door 2
LED w/ 200-ohm resistance
200 mA max per channel
19. Digital Output 3+
20. Digital Output 4+
21. Digital Output 3-
22. Digital Output 4-
Open drain 60 VDC max
500 mA max per channel
20.84mm
20.84mm
