Power Supply Connector; Headset Connector; Headset Microphone Gain Adjustment - RTS EKP-632 User Manual

Figure 2.3

Power Supply Connector

Align and insert the external power supply connector. Tighten the locking ring. Connect a power
cord to the power supply and to an AC power source. The power supply accepts 100-240 VAC,
50/60 Hz.
At power-up, the alphanumeric displays will first show asterisks (******). After several seconds
to a minute the intercom key assignments will display.
If the keypanel cannot establish communication with the intercom system, all alphanumeric
Note
displays will continue to show asterisks. Check the keypanel to matrix cable connection if this
occurs. If the keypanel loses communications with the intercom, it will not revert to ****'s for 30
seconds. Hence, if there is a short disruptionin the data communications, the panel will not show
******'s at all (although the panel my briefly display ------'s).

Headset Connector

A stereo headset may be connected for use along with or in place of the front panel speaker and a
separate microphone. Headphones may be connected for use with a separate microphone.

Headset Microphone Gain Adjustment

The gain of the headset microphone preamp output to the matrix can be adjusted via the recessed
trim pot located on the back panel. Turn the pot clockwise to increase gain and counter-clockwise
to decrease gain. The trim pot provides 40dB of adjustment range with a +16dBu maximum
output limit. The default factory default setting for this adjustment is +8dBu.
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K P - 6 3 2 U s e r M a n u a l
RJ12 Intercom Cable Wiring