GAI-Tronics GC-AC1 EZ Page Industrial Intercom - Manual (Page 4)

Pub. 42004-307G
EZ P AGE I NDUSTRIAL I NTERCOMS Page 4 of 16
f:\standard ioms - current release\42004 instr. manuals\42004-307g.doc
03/15
Power Connection
WARNING
 Installation techniques must comply with all applicable electrical safety hazards/electrical codes.
 Remove local power before opening the unit or before performing any service.
Input
Voltage
Model
Conductor 1
Conductor 2
Conductor 3
Conductor 4
120 V ac via
supplied 9.5-foot
cord w/NEMA
5-15P plug GC-AC1 Hot Black Neutral White Safety
ground
Green N/A --
12–16 V dc
(See note) GC-DC1 (+) Red (−) Black Safety
ground
Green Not
used
(cut off)
White
230 V ac
(See note) GC-AC2 Hot Red Neutral
(non-
US) White Safety
ground
Green Not
used
(cut off)
Black
N OTES :
1. For Model GC-DC1 (12–16 V dc), the integral power cable is designed for connection to Class 2
circuits. For Model GC-AC2 (230 V ac) termination of the integral primary power cable must be
made using a UL-approved junction box. If a customer-supplied interconnect plug is desired for
interconnect, the plug must be UL-approved and rated for such purposes.
2. The audio/control wiring for all models is designed for connection to Class 2 circuits.
Mounting Instructions
The wall’s mounting surface composition and hardware to be used (customer-supplied) must be suitable
to withstand the unit’s weight to prevent damage and/or personal injury.
If the unit is mounted to building structure, GTC Part No. 12704-001 Mounting Bracket Kit should be
used. Refer to Pub. 42003-134 that accompanies the kit for more information.
There are two 0.406-inch (10.4 mm) diameter holes located in the mounting flanges spaced 5.875 inches
(149.3 mm) apart. See Figure 1. The suggested mounting height for all station enclosures is 54 inches
(137 cm) from the floor to the centerline of the enclosure.
Connection Instructions
System Line Balance
Each system requires termination of the audio pair wires with the 1 k/1-watt resistor assembly included
with each unit. The line balance resistor assembly is made for easy installation into the customer-
supplied junction box. Only one line balance resistor assembly is needed per system.
For cable runs that are approximately 0.75 mile (1.2 km) or longer, it is recommended that the resistor
assembly be installed in a junction box that is close to the center of the system.