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Installation Instructions
1 | GT-OP2 / GT-OP3 Installation Instructions
INSTALLATION & WIRING:
The GT-OP2 and GT-OP3 Postal Lock Panels are for use with a GT Series Multi-Tenant Entry Security intercom system
and allow a postal lock device to be mounted alongside the entry panel. The lock device is available from the post office
and mounts behind the panel, accessible via the keyhole opening. The timer relay can be adjusted to provide a contact
closure from 5 to 20 seconds. NOTE: The GT-OP3 has an available position for an additional module. This opening can
be filled by any type of module, but must be purchased separately.
GT-OP3
IMPORTANT: The GT-OP3 has an
available position for an additional
module. This opening can be filled
by any type of module, but must
be purchased separately.
Opening for
Postal Lock
Blank Panel
(door release
circuitry inside)
Open
module
position
BLU
YEL
ORG
RED
BLK
GT-OP2
+
-
PS-2420UL
AC
Power
Electric
Strike
NOTE: If using a magnetic lock,
connect to BLU & YEL wires.
See color code definitions on Pg. 2.
0512
GT-OP2
1. Install alongside a GT Entrance Panel.
2. When using GT-OP3, install an additional module in the open position at the top of the unit.
3. Secure wire connections as shown on wiring diagram.
4. Cut the unused contact wire so the bare wires are not exposed.
5. When mounting with a rain hood (GT-nH) or surface box with hood (GT-nHB), you must grind out the
bottom lip of hood / box for the lock to fit. Please contact Technical Support if further clarification is needed.
6. Refer to standard GT Series Installation Manual for complete system information.