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Advanced Hook-Ups
External Emergency Mic
It is possible to use a microphone (Model MBS1000) with a contact closure to make an emergency announce-
ment. The TELCO terminal on the back of the MCP35A control panel can be used to remotely trigger an emer-
gency page on the system. Whenever the TELCO terminal is shorted to the GND terminal the MIC 2 input will
become active and send audio to all rooms regardless of switch settings. The figure below shows the required
wiring.
Emergency Telco Page
Emergency pages can be triggered by devices other than a microphone. To use a source other than a mic, it is
necessary to change the setting of a jumper inside the MCP35A control panel. See the Special Adjustments
section for more information on the jumper change. Below are emergency telco page hook ups for various types
of interfaces.
The Bogen model WMT1A can be used to convert the TELCO PAGE input to a transformer-balanced, 600-ohm
input for telephone paging applications.
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Note: Jumper J3 on the
MCP35A printed circuit board
must be set to the MIC2 posi-
tion (this is the factory default
setting). See the Special
Adjustments section for jumper
information.
Note: Jumper J3 on the
MCP35A printed circuit
board must be set to the
TELCO position. See the
Special Adjustments sec-
tion for jumper information.
MBS1000
audio
leads
Switch
Contact
WMT1A