• The MRT-327 can send and receive 20kHz call

signals.

• The MIC on/off switch can be used as a momentary

push-to-talk switch or as a latching on/off switch.

• The MRT-327 can receive 24kHz talk-off (mic kill)

signals for deactivation of the MRT-327 microphone

from a remote location.

• The microphone pre-amplifier circuit contains a limiter

which helps to equalize output for different voice

levels.

• The standard MRT-327 accepts a dynamic-mic

headset used in conjunction with an external speaker

located on the rear panel. It also has an optional jack

for an MCP-90-xx gooseneck panel microphone.

• The MRT-327 receives operating power from the

intercom line. It may be internally modified for local

powering from a separate DC power supply or

batteries.

Features