Terminal Identification:
Terminal Legend Function/Description
TRG1 & TRG2
These input terminals are designed to connect to the normally closed outputs of an access control or
fire alarm relay. These terminals control [LOCK+], and [], as well as AL175ULX output
relay contacts [N.C., N.O., C].
LOCK +
This terminal provides DC output voltage when [TRG1] and [TRG2] are shorted
together and are typically used to power Mag Locks.
This terminal provides DC output voltage when [TRG1] and [TRG2] are unshorted
and are typically used to power Electric Strikes.
N.C., N.O., C
Isolated dry Form “C” contacts. Shorting [TRG1] and [TRG2] together causes these contacts to switch.
They are typically used for controlling multiple AL175ULX2s with fire alarm tie-in (Fig. 4, pg. 4).
AUX+
Continuous positive (+) DC power output voltage. It is not affected by TRG1, TRG2 operation.
COM --
Common negative (-) output (ground).
FACP
Spare wiring terminal used for fire alarm tie-in application (Fig. 3, pg. 4).
+ BAT --
Stand-by battery connections.
SW2
Momentary reset button (on front door) is used as a manual power supply reset
after fire alarm system is restored.
AUX--
AUX neg (-) output (ground).
Enclosure Dimensions:
15.5” x 12” x 4.5” (393.7mm x 304.8mm x 114.3mm)
AL175ULX2
- 3 -
1.5”
(38.1mm)
1.5”
(38.1mm)
1.5”
(38.1mm)
5.0”
(127.0mm)
5.0”
(127.0mm)
1.5”
(38.1mm)
2.0”
(50.8mm)
2.0”
(50.8mm)
1.75”
(44.45mm)
1.75”
(44.45mm)
4.5”
(114.3mm)
1.25”
(31.75mm)
4.5”
(114.3mm)
1.25”
(31.75mm)
1.25”
(31.75mm)
1.25”
(31.75mm)
1.1”
(27.94mm)
1.1”
(27.94mm)
0.79”
(20.06mm)
1.1”
(27.94mm)
0.91”
(23.114mm)
0.91”
(23.114mm)
1.375”
(34.925mm)
1.125”
(28.575mm)
15.5”
(393.7mm)
4.615”
(117.22mm)
12.23”
(310.64mm)
4.615”
(117.22mm)
1.5”
(38.1mm)
1.5”
(38.1mm)
4.615”
(117.22mm)
4.615”
(117.22mm)
