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There is a switch on the board to configure the operation of the board from 120VAC to 240VAC. The switch is factory set for
the intercom to operate on 120VAC (see figure 7).
See figures 8 through 15 for typical intercom configurations.
The Model 310X's circuits are not nonincendive field wiring circuits except the foot switches. Wire all circuits connected to the
310X Intercom using Class I, Division 2 wiring methods specified in Article 501‑4 (b) of the NEC.
F. Service.
Any maintenance must be performed by a trained electrician in accordance with NEC guidelines and local codes.
1. General.
The call signal is substantially louder than normal voice messages being carried on the line. Do not depress the call switch while
carrying on a conversation with someone on the system. This will subject the listener to very loud sound levels.
Federal Signal will service your equipment or provide technical assistance with any problems that cannot be handled locally.
Any units returned to Federal Signal for service, inspection, or repair must be accompanied by a Return Material Authoriza‑
tion. This R.M.A can be obtained from the local Distributor or Manufacturer's Representative.
At this time a brief explanation of the service requested or the nature of the malfunction, should be given.
Address all communications and shipments to:
2. Replacement Parts.
Description
PC Board, 310‑MV
Potentiometer
Toggle Switch
Push Button Switch
Knob, Pot
Rubber Boot (Toggle Switch)
Rubber Boot (Pushbutton Switch)
Rubber Boot (Volume Control)
Terminal Block
310‑MV/310X‑MV Speaker/Housing Assy.
Housing Cover Plate
Housing Cover Plate w/microphone receptacle
Housing Cover Plate w/microphone conversion
Cover Gasket
Resistor, 1K, 1W
Fuse, GMC‑1/2
PC Board, 310X‑MV
Permanent Slave Kit
Mini‑jumpers
CAUTION
CAUTION
CAUTION
FEDERAL SIGNAL CORPORATION
Industrial Systems Division
Service Department
2645 Federal Signal Drive
University Park, IL 60484‑3167
WARNING
Replace fuse with GMC‑1/2 only. DO NOT substitute.
Part Number
K2001915
K106A123
K122A298
K122A299
K141A129
K288801
K288A541
K288A542
K140A326‑01
K8590217
K8502106
K8502107
K8502016
K8590013
K101216
K148A155
K2001915‑02
K8502017
K139A209
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