Operation, Combination speaker volume/mute on-off switch, Listen/talk configured units – GAI-Tronics GC-AC1 EZ Page Industrial Intercom User Manual
Page 8: Master/slave configured units, Master unit, Slave unit, Maintenance, Internal fuse replacement
Pub. 42004-307G
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Operation
Combination Speaker Volume/Mute On-Off Switch
Allows the user to adjust the received audio level. The control also allows the unit’s speaker amplifier to
be muted.
Listen/Talk Configured Units
Unit default: Listen mode
To make a page, hold down the Listen/Talk switch in the T
ALK
position and talk into the speaker, which
also acts as the microphone. Other units in the system, which are already in the listen mode, will
broadcast the page from their speakers. Releasing the switch deactivates the microphone and returns the
unit to the listen mode.
Master/Slave Configured Units
Master Unit
Unit default: Listen mode
Master unit is in the listen mode and will broadcast any audio generated from an associated Slave unit.
To make a page, hold down the Listen/Talk switch in the T
ALK
position and talk into the speaker, which
acts as the microphone. The Master unit’s Listen/Talk switch performs the added function of switching
the Slave unit’s mode from talk to listen. The Slave unit will broadcast the received page from its
speaker.
Releasing the Listen/Talk switch does the following:
Returns the unit to the listen mode by switching the Master unit’s microphone into its original speaker
state
Switches the Slave unit’s mode from listen to talk
Slave Unit
Unit default: Talk mode
The Slave unit is in the talk mode until the Master station operator holds down the press-to-talk switch.
The Slave unit operator does not have to hold down the press-to-talk switch—operation is hands-free.
The Listen/Talk switch is not operable when the unit is configured as a Slave.
Maintenance
Internal Fuse Replacement
To reduce the risk of fire, replace fuses only with the same type and value as follows:
For Model GC-AC1: 4/10 amp, slo-blo, 250 V, 3AG
For Model GC-DC1: 2 amps, slo-blo, 250 V, 3AG
For Model GC-AC2: 2/10 amp, slo-blo, 250 V, 3AG