Altronix AL1042UL2ADA Installation Manual page 6

Power Supply Board*
Terminal Function/Description
Legend
L, G, N Connect 115VAC to these terminals: L to Hot, N to Neutral, G to ground.
- DC + 24VDC @ 8 amp continuous, 10 amp in alarm non-power limited output, 10 amp continuous when
batteries are not used.
AC FAIL Form "C" dry contacts used to signal the loss of AC, with AC present terminals marked [NO and C]
C, NC, NO are open, [NC and C] are closed. When loss of AC occurs terminals marked [NO and C] are closed,
[NC and C] are open (Fig. 2, pg. 7).
BAT FAIL Form "C" dry contacts used to signal low battery voltage or loss of battery voltage.
NO, NC, C Under normal conditions terminals marked [NO and C] are open, [NC and C] are closed.
During a trouble condition terminals marked [NO and C ]are closed, and [NC and C] are open
(Fig. 2, pg. 7).
+ BAT - Stand-by battery input (leads provided) (Fig. 2, pg. 7).
*Parameter Specifications:
• AC Fail condition will report approximately thirty (30) seconds after loss of AC. To delay report for 6 hours cut
jumper J2 on the Power Supply Board (AC trouble output delay option). If this mode is selected the Power
Supply Board must be reset by removing all power to it for 30 seconds (Fig. 2, pg. 7).
• Low battery condition will report at approximately 21VDC (24VDC output setting) or approximately 10.5VDC
(12VDC output setting).
• Battery presence detection will report within 3 minutes after battery remains undetected (missing or removed).
A restored battery will report within thirty (30) seconds.
LED Status Indication Table:
LED OFF
Out 1 Normal
Out 2 Normal
Out 3 Normal
Out 4 Normal
Input 1 Normal
Input 2 Normal
Fault Normal
AC AC Loss
DC No DC Output
* Indicates current trouble condition. When trouble (open, short or ground) occurs on a specific output, the
corresponding red output LED, [OUT1-OUT4] will blink. The corresponding green input LED will
blink as well. Loop trouble will report within thirty (30) seconds.
** Indicates trouble condition memory. When a trouble condition restores, the units red output LED,
[OUT1-OUT4] will blink with a shorter and distinctly different duration. The green input LED(s) will be off
(normal condition). To reset the memory depress the "reset" button. The LED's will extinguish.
Note: If indicating circuits have been restored, memory reset is not required for normal operation of the unit.
- 6 -
ON
Alarm Condition
Alarm Condition
Alarm Condition
Alarm Condition
Alarm Condition
Alarm Condition
System Trouble
AC present
DC present
BLINK (LONG)*
Trouble Condition
Trouble Condition
Trouble Condition
Trouble Condition
Trouble Condition
Trouble Condition
---
---
---
BLINK (SHORT)**
Trouble Condition Memory
Trouble Condition Memory
Trouble Condition Memory
Trouble Condition Memory
---
---
---
---
---
AL1042UL2ADA