Installation Manual

AL175UL - 3 -
Terminal Identification:
Terminal Legend Function/Description
TRG1&TRG2
Connects to the normally closed outputs of an access control or fire alarm relay. These terminals
control[LOCK+],and[STRIKE+],aswellasAL175ULoutputrelaycontacts[NC,NO,C].
LOCK+
ProvidesDCoutputvoltagewhen[TRG1]and[TRG2]areshortedtogetherandaretypically
used to power Mag Locks.
STRIKE+
ProvidesDCoutputvoltagewhen[TRG1]and[TRG2]areunshortedandaretypicallyusedto
powerElectricStrikes.
NC,NO,C
Isolateddryform“C”contacts.Shorting[TRG1]and[TRG2]togethercausesthesecontactsto
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
NC,C,NO
Indicates loss of AC, e.g connect audible device or alarm panel. Relay normally energized
whenACpowerispresent.Contactrating1amp@28VDC.
Enclosure Dimensions (H x W x D approximate):
8.5”x7.5”x3.5”(215.9mmx190.5mmx88.9mm)
1.25”
(31.75mm)
1.25”
(31.75mm)
1.25”
(31.75mm)
1.125”
(28.575mm)
1”
(25.4mm)
1”
(25.4mm)
1”
(25.4mm)
5.25”
(133.35mm)
6.05”
(153.67mm)
6.05”
(153.67mm)
3.5”
(88.9mm)
3.5”
(88.9mm)
7.25”
(184.15mm)
2”
(50.8mm)
2”
(50.8mm)
8.125”
(206.375mm)
0.6”
(15.24mm)
1”
(25.4mm)
1”
(25.4mm)
0.6”
(15.24mm)
0.6”
(15.24mm)
1.125”
(28.575mm)
0.6”
(15.24mm)
3.625”
(184.15mm)