Altronix AL400ULX Installation Manual page 5

The unit should be installed in accordance with article 760 of The National Electrical Code as well as NFPA 72 and all
applicable Local Codes.
1. Mount the unit in desired location.
2. Set the unit to the desired DC output voltage by setting SW1 (Fig. 1B, pg. 3) to the appropriate position
(Power Supply Voltage Output Selections Chart, pg. 3).
3. Secure enclosure to earth ground. Connect AC power (115VAC / 60 Hz to terminals marked [L, G, N] (Fig. 1, pg. 3).
Use 14 AWG or larger for all power connections (Battery, DC output, AC input).
Use 22 AWG to 18 AWG for power limited circuits (AC Fail/Low Battery reporting).
Keep power limited wiring separate from non-power limited wiring (115VAC / 60Hz Input, Battery Wires).
Minimum .25" spacing must be provided.
4. Measure output voltage before connecting device. This helps avoid potential damage.
When servicing the unit, AC mains should be removed.
5. Connect devices to be powered:
a. For AL400ULX Power Supply connect devices to terminals marked [+ DC -]. (Fig. 1, pg. 3)
b. For other Power Distribution Models connect devices to be powered to terminal pairs 1 to 4 marked
[1P & 1N thru 4P & 4N] (Fig. 2A & 2B, pg. 5) or 1 to 8 marked [1P & 1N thru 8P & 8N] (Fig. 3A & 3B, pg. 5)
carefully observing correct polarity.
6. For Access Control applications, batteries are optional. When batteries are not used a loss of AC will result in the
loss of output voltage. When the use of stand-by batteries is desired, they must be lead acid or gel type.
7. Connect appropriate signaling notification devices to terminals marked [AC FAIL & BAT FAIL] (Fig. 1A, pg. 3)
supervisory relay outputs.
Note: When used in fire alarm, burglar alarm or access control applications, "AC Fail" relay must be used to
provide a visual indication of AC power on.
8. Please insure that the cover is secured with the provided Key Lock.
LED Diagnostics:
AL400ULXB - Power Supply Board
Red (DC) Green (AC)
ON ON
ON OFF
OFF ON
OFF OFF
Terminal Identification:
AL400ULXB - Power Supply Board
Terminal Legend Function/Description
L, G, N Connect 115VAC to these terminals: L to Hot, N to Neutral, G to ground.
- DC + 12VDC @ 4 amp or 24VDC @ 3 amp continuous power limited output.
AC FAIL Used to notify loss of AC power, e.g. connect to annunciator/alarm panel. Relay normally energized
N.C., C, N.O. when AC power is present. Contact rating 1 amp @ 30VDC. AC Fail condition will report
approximately one (1) to one minute after loss of AC. To delay report for 6 hours cut jumper
J1 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.
BAT FAIL Used to indicate low battery condition, e.g. connect to alarm panel. Relay normally energized
N.C., C, N.O. when DC power is present. Contact rating 1 amp @ 30VDC. Low battery conditions will report
approximately 21VDC (24VDC output setting) or approximately 10.5VDC (12VDC output setting).
Battery presence detection will report approximately 1 minute after battery remains undetected
(missing or removed).
+ BAT - Stand-by battery connections. Maximum charge rate .7 amp.
Installation Instructions:
Power Supply Status
Normal operating condition
Loss of AC, Stand-by battery supplying power
No DC output
Loss of AC. Discharged or no stand-by battery. No DC output.
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