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Description, Operation, and Specifications
The selection (4) and operation (5) buttons have different functions when the Model 802 is switched from the standard,
"operating" mode to the "programming" mode. Legends under each button show its "programming" function. See
"Programming the Model 802" on page 43 for programming instructions.
In the basic Model 802, the first twelve selection buttons (4A) activate the talk circuits (top buttons), and listen circuits
(bottom buttons) of intercom channels 1 through 6. The remaining twelve selection buttons (4B) become operational with the
addition of options. Normally, the eight operation buttons (5) work as follows:
Preset 1 through Preset 4 (6)
Preset 1 through Preset 4 can be user programmed to activate, by the push of a single button, combinations of audio and
control circuits.
Call Signal (7)
The Call Signal button enables the signalling function, when the unit is equipped with this option.
Panel Mic (8)
The Panel Microphone enable button selects the front panel gooseneck microphone and deactivates the headset microphone; if
no headset is plugged in, Panel Microphone is automatically selected.
Speaker ON (9)
The Speaker ON button turns on the loudspeaker. Note, the headset listen circuit is always ON.
Microphone ON (10)
The Microphone ON button turns on the microphone in use (headset or panel).
Most of the front panel buttons feature a special momentary/latching dual-action: if a button is pressed quickly, the function
will "latch", (turning "ON" if off, turning "off" if ON); if the button is head slightly longer, the action will be momentary and
the function will turn OFF when the button is released.
NOTE: This "latching" function can be disabled, "LATCH DISABLE Programming Function" on page 46.
Master Volume (11)
The Master Volume control sets the level of the sum of all audio sources going to the left and right side of the stereo
headphone and loudspeaker (exceptions: chime and squawk receive levels).
AUXiliary Volume (12)
The Auxiliary Volume control sets the level of the two auxiliary program audio inputs (and sends it to the Master Volume
control).
Carbon Microphone Headset Jack (13)
The Carbon Microphone Headset Jack accepts a standard 3-conductor 1/4" phone plug. The necessary DC excitation voltage
is provided to power carbon microphones or their electronic equivalent.
Dynamic Microphone Headset (14)
The Dynamic Microphone Headset connector accepts a stereo earphone, dynamic microphone headset.
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