Altronix AL175UL Installation Instructions page 3

Terminal Legend Function/Description
Connects to the normally closed outputs of an access control or fire alarm relay. These terminals
TRG1 & TRG2
control [LOCK+], and [STRIKE+], as well as AL175UL output relay contacts [NC, NO, C].
Provides DC output voltage when [TRG1] and [TRG2] are shorted together and are typically
LOCK+
used to power Mag Locks.
Provides DC output voltage when [TRG1] and [TRG2] are unshorted and are typically used to
STRIKE+
power Electric Strikes.
Isolated dry form "C" contacts. Shorting [TRG1] and [TRG2] together causes these contacts to
NC, NO, C switch. They are typically used for controlling multiple AL175ULs with fire alarm tie-in
(Fig. 5 and Fig. 6, 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. 4, pg. 4).
+ BAT - Stand-by battery connections.
AC FAIL Indicates loss of AC, e.g connect audible device or alarm panel. Relay normally energized
NC, C, NO when AC power is present. Contact rating 1A @ 28VDC.
1.25"
(31.75mm)
2"
(50.8mm)
2"
(50.8mm)
8.125"
(206.375mm)
AL175UL
Terminal Identification:
Enclosure Dimensions
8.5" x 7.5" x 3.5" (215.9mm x 190.5mm x 88.9mm)
0.6"
(15.24mm)
1.125"
(28.575mm)
1"
(25.4mm)
0.6"
(15.24mm)
1"
(25.4mm)
(H x W x D approximate)
7.25"
(184.15mm)
3.625"
(184.15mm)
(31.75mm)
6.05"
(15.24mm)
(153.67mm)
(28.575mm)
(25.4mm)
6.05"
0.6"
(153.67mm)
(15.24mm)
(25.4mm)
5.25" 1"
(133.35mm) (25.4mm)
:
1.25"
3.5"
(88.9mm)
0.6"
1.125"
1"
1.25"
(31.75mm)
3.5"
(88.9mm)
1"
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