Clear-Com RM-702 - Manual (Page 32)

R M - 7 0 2 T W O - C H A N N E L R E M O T E S T A T I O N 2 - 2 0
REMOTE CONTROL OF TALK SWITCHES
The talk switches of the RM-702 can be remotely controlled with external
contacts that are available on the accessory connector on the rear panel. A
footswitch or remote pushbutton when wired to the accessory connector acts
exactly the same as pushing a talk switch on the front panel. Both latching and
momentary actions are active.
Figure 2-17: Connection of External Talk Switches
INADEQUATE SIDE-TONE ADJUSTMENT
The receive circuits of the intercom channels have been optimized for an
intercom line length of up to 1,000 ft (305 m). The capacitance of the
intercom line must be compensated for in the receive circuits if a good
sidetone null is to be achieved. When using a speaker, a good sidetone null is
necessary to achieve a usable listening level.
Two rear-panel DIP switches are provided to compensate for lines longer than
1,000 ft. (305 m). Each intercom channel has its own DIP switch, as
described in “DIP Switch Option Switches” earlier in this chapter.