Features
1.
Channel and Power Connections: The "U" box uses quick release terminals to connect au-
dio and power wires. For the “S” box and “P” box versions, the terminal connections are
brought out to the dual, loop-thru XLR connectors on the side of the box. These permit
several stations to be connected in a string, or daisy-chain, using prefabricated intercom
cables.
2.
Configuration DIP switches: These switches control 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 micro-
phone may be selected.
DC call enable: This may be turned on to use the intercom station with intercom sys-
tems that use DC call signaling.
3.
Panel Mic Key: Selects the Panel Mic connector (11) in the on position and the Headset
connector (10) in the off position.
4.
Speaker Key: Selects the built-in speaker in the on position and the Headset connector
(10) in the off position.
5.
Channel Select Key (SS2000 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 (push-to-listen) and latching (hands-free listen)
are possible.
8.
Call Key: Used to send call signals on the intercom channel. Flashes for incoming calls.
9.
Intercom Talk Key: Both momentary (push-to-talk) and latching (hands-free talk) are pos-
sible. The SS1000 / SS2000 also features a "mic kill receive" circuit, which allows an op-
erator at a remote master station (such as the US2000A) to turn off the SS1000 / SS2000
talk key.
10. Dynamic-Mic Headset Connector: 4-pin male XLR connector accepts headsets with mon-
aural headphones and either a balanced or unbalanced dynamic microphone. Also accepts
a telephone style handset. Can also be used with headphones when a Panel Mic is con-
nected. Or, can be used with a handheld microphone along with the internal speaker.
11. Panel Mic / Electret-mic Headset Connector: Accepts an electret gooseneck microphone,
such as the Telex Model EGM-12N or EGM-18N.
12. Sidetone Trimmers: These adjust the level of the user's own voice in the headphones
when using full-cushion headphones. (Eliminates the muffled sensation when talking
with the ears completely covered.) When using the speaker or open-ear style headphones,
the sidetone trimmers are adjusted to eliminate the user's voice from the headphones or
speaker. This helps to prevent feedback.
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