Operation
☞
A quick-reference to the following operating features can be found on the inside
of the back cover.
Normal vs Programming Mode
The US2000A has two operating modes: normal operating mode and programming
mode. In normal operating mode, the Mic Kill key will be unlit, and in programming
mode it will be lit continuously. To return the US2000A to normal operation if it has
been left in programming mode, tap the Mic Kill key.
Volume Adjustment
If you are using a headset, adjust the intercom listen level with the Volume control
on the front panel of the US2000A. If you are using a speaker, adjust the intercom
listen level with the Volume control on the speaker.
Receiving Calls
1.
When there is an incoming call signal on a channel, the Call key for that channel
will flash red. There will also be a beep tone if the beep feature has been acti-
vated (page
2.
Activate the microphone: If you are using a dynamic-mic headset tap the Head-
set key to turn the mic on; if you are using a panel-mounted microphone or an
electret-mic headset, tap the Panel Mic key to turn the mic on.
☞
You can also use the voice-activated microphone (Vox) feature. See page
3.
Turn on the Talk and Listen keys for the calling channel and begin your conver-
sation. Turn the keys off when finished.
☞
When you tap the Headset key, or the Panel Mic key, or any Talk or Listen key,
it will lock in the on position. You may then tap the key again to turn it off. For
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