Clear-Com BS850 (Last time buy) - Manual (Page 38)

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Connectors and Adjustment
13. Headset Connector
XLR type connector.
14 & 20. Antenna Connectors
Transmitter antenna connector has color dot (or none), matching color band (or none) on transmitter antenna.
Receiver antenna connector has color dot (or none), matching color band (or none) on receiver antenna.
Screw antennas securely into connectors.
17. RMT Connector
Used for interconnect programming cable to base station, for uploading Beltpac configuration settings and
frequency scans.
CAUTION: Beltpac should not be turned off and back on while connected to base station or controller
malfunction may occur. If this happens, unplug the connector, turn the Beltpac power off, wait at least one
second and turn the power back on. An ordinary telephone handset cable may be used to connect the
Beltpac to the base station.
Interconnect cable has RJ-10 type connectors.
18. Headset Microphone Gain Adjustment
Adjusts headset microphone gain ±10dB.
NOTE: Beltpac automatically detects electret or dynamic microphone.
19. Auxiliary Input Connector
1/8 inch jack receptacle for line level monaural audio source.
If the Beltpac includes a second (optional) receiver, plugging into this location will disconnect the second
receiver and connect the auxiliary input device in its place.
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