Clear-Com RM-702 - Manual (Page 11)

R M - 7 0 2 T W O - C H A N N E L R E M O T E
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PROGRAM MONITOR LEVEL CONTROL
The program volume control sets the amount of the program signal heard
directly in the headphone or speaker. This control only affects what is heard in
the headphone or speaker and does not affect program feed to the intercom
lines.
ANNOUNCE BUTTON
The announce button allows the operator to instantly use the microphone
input to directly talk to a system external to the intercom such as a paging
speaker/amplifier in another room. A dry set of relay contacts on the rear
panel is also available for activating external switching, as needed when the
announce button is pressed.
The button illuminates amber when pressed. Pressing the announce button
momentarily disables any active talks. Active talk circuits will be restored
when the button is released.
The talk-muting action can be defeated if desired by moving an internal
jumper. (See the section on internal options and adjustments.)