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4
Features
Use Figure 1 and Figure 2 to locate the features described below.
1. Channel and Power Connections -
The U box uses quick release terminals to connect to audio and power wires.
For the S box and P box versions, the terminal connections are connected to
the dual, loop-through XLR connectors on the side of the box. These permit
several stations to be connected in a string, or daisy-chain, using pre-
fabricated intercom cables.
2. Configuration DIP Switches -
Controls the following features:
Call Beep- In addition to a flashing call key indication for incoming calls,
an incoming call beep tone can also be used.
Headset Microphone Type Selection- Either a balanced or unbalanced
dynamic microphone can be selected.
DC call enable- This may be turned on to use the intercom station with
intercom systems that use DC call signaling.
3. Panel Mic Key -
Selects the Panel Mic/Built-in Mic connector (11) in the on position, the
headset connector (10) in the off position.
4. Speaker Key -
Selects the built-in speaker in the on position, the headset connector (10) in
the off position.
5. Channel Select Key
(SS-2002 & SS-2002RM only) -
Selects intercom channel 1 or 2. The key lights green for channel 1 and red for
channel 2
6. Volume Control -
Adjusts intercom listen volume to headphones or speaker.
7. Intercom Listen Key -
Both momentary (also known as push-to-listen) and latching (also known as
hands-free-listen) functions are possible.
8. Call Key -
Use to send call signals on the intercom channel. Flashes for incoming calls.
9. Intercom Talk Key -
Only the momentary (push-to-talk) function is possible. All models are
equipped with a mic kill receive circuit, which allows an operator at a remote
master station (such as the US-2000A) to turn off the talk key on all stations
along the intercom line.
10. Dynamic-Mic Headset Connector -
4-pin male XLR connector accepts headsets with monaural headphones and
either a balanced or unbalanced dynamic microphone. Also accepts a
telephone style handset. It can be used with headphones when a panel mic is
connected. A handheld microphone along with the internal speaker can also
be used.
11. Panel Mic Connector -
Accepts an electret gooseneck microphone such as the Telex MCP-90.
12. Built-in Panel Microphone -
Active when the Panel Mic key is pressed and a gooseneck microphone is not
inserted in the Panel Mic connector.