Features
1.
Intercom Talk Keys: Momentary or latching (hands-free) operation possible.
2.
Call Keys: Used to call intercom channels and to indicate incoming calls.
3.
Intercom Listen Keys: Momentary or latching operation possible.
4.
Channel Power Status Indicators: The indicators are green for normal operation
and change to red if there is a short circuit or overload condition on a power out-
put line. If an indicator turns red, either disconnect the corresponding channel
connector or turn off the intercom system and locate the problem before resum-
ing operation
5.
Reset Button: Used to resume normal operation after an overload condition has
been corrected.
6.
Universal AC Power Connector: Accepts a variety of international power cord
types.
7.
Intercom Channel Connectors: These connectors provide the power and audio
connections for each of the 4 intercom channels.
8.
EXP IN and EXP OUT Connectors: The EXP IN connector receives the micro-
phone audio signal from the MS2000, and it sends the monaural mix of the four
EMS4000 channels to the MS2000 speaker or headset. The EXP OUT connector
connects to the EXP IN connector of an additional EMS4000. Up to 4 EMS4000
Expansion Master Stations may be daisy chained with the EXP IN and EXP
OUT connectors. An EXP IN/OUT cable is supplied with each EMS4000.
9.
SPEAKERS: Usually, the listen mix of all 4 EMS4000 channels is sent to the
MS2000 speaker or headset via the EXP IN connector. Alternatively, speakers
may be connected to one or more of the speaker outputs of the EMS4000.
10. BAL / UNBAL Switch: This selector switch sets the EMS4000 for compatibility
with either Audiocom or Clear-Com* channel connector pin-outs, channel
power requirements, and call signaling requirements. Important! The internal
switches S200 and S600 must be set the same as the back panel BAL/UNBAL
switch.
5
* Brand names mentioned are the property of their respective companies.
