Remote Control - Federal Signal AudioMaster 310LD-MV Instrucciones De Instalación Y Servicio

REMOTE CONTROL:

Remote control is used to change the operation mode of a remote
intercom from listen to talk or from talk to listen upon activation of a local
intercom. The wiring diagram section illustrates Master/Slave Installation
and Using Foot Switches Diagrams. (See Figures 5 and 6.)
Normally open foot switches can also be connected to the Remote
Control line and ground in order to allow "hands free" operation of the
listen/talk functions.
CALL BUTTON AND CALL DRY CONTACTS TO EXTERNAL DEVICE:
Depressing the call button sends a 1 kHz tone onto the signal lines. All
units listening to the line will then broadcast this signal as a call. Depressing
the call button also closes a normally open dry contact rated at 0.4 amps
at 125VAC or 1.25 amps at 24VDC. This contact can be used to trigger
a remote sounder or light in order to accent the call feature. The wiring
diagram illustrates how an external light or horn can be wired in to augment
the call tone. (See Figure 7.)
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.
24VDC:
The 310 is capable of sending DC power to another unit which is
mounted in a remote location without local power. 24VDC is available from
positions 6 and 7 of terminal block J7. It can be run along with the signal
lines to an intercom in a remote location. Only one unit should share the
power supply of another unit in any installation.
Figure 8 in the wiring diagrams section shows how two intercoms can be
hooked up if no remote power is available.
If an intercom is intended to be run off of a separate 24VDC
supply, the output must be limited to 24VDC, 760 mA output.
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