Clear-Com RM-704 - Manual (Page 29)

M S - 7 0 4 / R M - 7 0 4 F O U R - C H A N N E L M A I N / R E M O T E
2 - 1 1
Figure 2-10: Accessory Connector
• AUXILIARY PROGRAM INPUTS: Four different program inputs,
one for each channel, are provided. These auxiliary program inputs can
only be fed directly to their associated intercom line. The only controls
that affect these inputs are the PGM-level controls associated with each
channel and the internal program interrupt switch that is active if the
function has been activated with an option DIP switch and a talk is active
on that channel.
These inputs are electronically balanced with a high input impedance.
Refer to the illustration above for connection of the program inputs.
Pins #5 or #14 can be used for connecting shields.
• REMOTE MIC ON/OFF SWITCH: An external momentary
pushbutton switch connected to pins #5 and #13 will duplicate the action
of the front panel mic on/off switch.
• ANNOUNCE RELAY CONTACTS: A relay is provided that activates
when the announce button is pressed and its contacts are available on the
accessory connector. The relay contacts are rated for 2.0 amperes of DC
current at 24 VDC and are electrically isolated from the rest of the station.