Clear-Com SB-704 - Manual (Page 11)

S B - 7 0 4 M A I N S T A T I O N 1 - 5
as ½ second, depending upon whether there was a single or multiple short or
overload. The other channels continue to operate normally. The SB-704’s
advanced fail-safe circuit will bring the power back up even under full load
conditions. Front-panel lights indicate a fault on any of the four channels.
When the station is first turned on, all four short lights are normally off.
Selecting Microphones and Enabling the Speaker
To select between the gooseneck mic and the headset mic, move the
microphone select switch to the appropriate position.
The mic on/off pushbutton toggles the microphone on and off. The mic button
lights blue when the mic is active.
The microphone will be turned on automatically whenever a talk function is
activated as it is assumed that you wish to talk. If one or more talks are active,
you may turn the microphone off without unlatching the active talks.
The speaker may be turned on and off with the speaker switch.
Listening to Intercom Channels
To listen to an intercom channel, press the listen button for the desired
channel. The listen button lights green to indicate that the listen function is on.
The listen level control (below the call button) for that channel is usually set
to full on position and the listening volume is set by the intercom volume
control to the left of the speaker.
If several channels are being listened to at the same time, it might be desirable
to adjust the individual listen levels of each channel for the desired mix.
Talking on Intercom Channels
To talk on an intercom channel, press the desired talk button. Pressing and
holding the button will cause the function to be active only while the button is
held (momentary). Pressing and releasing the button quickly will cause the
function to latch on if it was off or turn off if it was on (latching).
The latching function can be defeated on an individual channel with an option
DIP switch beneath the access panel (latch disable DIP switch).
The button will be illuminated blue when the talk function is off and amber
when the talk function is on.
Another option allows the automatic setting of a listen function whenever a
talk is active (auto-listen DIP switch) for each channel.
The All-Talk Function
Pressing the button marked all talk sends the selected microphone to all
channels while the button is pressed (momentary only). This button lights
amber when pressed.
Monitoring Main Program