Aiphone gt-op2 Leaflet

Page of 2
Aiphone Corporation
1700 130
th
Ave NE Bellevue, WA 98005
Ph: (800) 692-9200   Fax: (425) 455-0071
tech@aiphone.com
2 | GT-OP2 / GT-OP3 Installation Instructions
SPECIFICATIONS:
Power Source:
24V DC, powered by the PS-2420UL Power Supply
Mounting:
Flush mount or surface mount with GT-102HB for GT-OP2, GT-103HB for GT-OP3
Terminations:
Color-coded pre-wired pigtails
Relay Input:
24V DC, Red, Black wires, 22AWG
Relay Output: 
Blue (COM), Orange (N/O), Yellow (N/C) wires
N/O Output rating:
5A at 30V DC
10A at 125V AC
3A at 250V AC
N/C Ouptut rating: 
3A at 30V DC or 125V AC
Switch Output:
Green (COM), White (N/C); Switch rated to 30V AC/DC, 1 amp
Wiring:
2 conductors from 24V DC power supply to GT-OP panel
2 conductors from GT-OP panel to strike, with power for strike wired in series
Dimensions (HxWxD):  GT-OP2:  8-7/8" x 5-5/16" x 2"
GT-OP3: 12-5/8" x 5-5/16" x 2"
WIRING DIAGRAM:
GT-OP2 Rear View
Testing the unit without the postal lock:
Tape or hold switch closed and apply power to the unit on Red / Black 
leads. Release switch and timer circuit will activate. Confirm relay 
activation with a multi-meter at the Blue / Yellow / Orange leads.
TO 24V DC (+)
RELAY COMMON CONTACT
RE
LAY 
NO
RMALL
Y
 CLOS
ED CONTACT
T
O
 24V DC 
(-)
RELAY NORMALLY 
OPEN CONTACT
SWI
T
CH
 (NORMALLY CLOSED)
SWI
T
CH (COMMON)
Timer control for door 
release (5 to 20 seconds)
Switch, activated by
postal lock device
(When lock is engaged, the switch 
releases and starts timer)
Lock device from Post 
Office installed here
Opening for postal 
lock keyhole
Lock device 
mounting studs
PC Board can be adjusted up 
or down as needed to ensure 
proper contact from the postal 
lock to the switch
RE
D
BL
U
E
YEL
LOW
BLA
C
K
ORANGE
WH
IT
E
*
GR
EE
N
*
* The green and white wires bypass 
the timer circuit and go directly to the 
switch. Use this connection when 
going to a 3
rd
party timer or when the 
timer circuit is not needed. The 
orange, black, yellow, blue, and red 
wires would not be used if you 
connect to the green / white bypass.
IMPORTANT: If the Green and White wires are not used, cut wires to avoid a possible malfunction.