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

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 S T A T I O N S
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• The announce function
Intercom Power Status Lights (MS-704)
The four red short lights are failure indicators for each of the four intercom lines.
These lights will assist in locating a shorted or overloaded channel. Within as
little as ½ second of automatically cutting off power to an overloaded intercom
line, the MS-704 will attempt to turn power on again. This allows momentary
short or overload conditions to clear automatically. Shorts are normally caused by
miswiring or damaged cables. Overloads are generally caused by connecting too
many beltpacks and stations to an intercom line.
Clear-Com’s advanced fail-safe design can sense the difference between a short or
an overload to optimally protect itself. Power is restored in as little as ½ second,
depending upon whether there was a single or multiple short or overload. The
other channels continue to operate normally. The MS-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 the desired microphone, move the microphone select switch to the
appropriate position: either “panel” or “headset.”
The mic on pushbutton allows turning the microphone on or off. The mic on
pushbutton lights blue when the microphone 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).