M O N O M I C I N P U T
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RD-12 / March 99
Mono Mic Input (MMD-5)
MMD-5 modules are for microphone input signals (-50dBu nomi-
nal). Each module accepts two mono sources: A and B, switched at the
top of the module. Phantom power is available at both input ports; it
may be selectively activated by an internal dipswitch (the factory
default is OFF). Recessed front panel multi-turn trimpots (range 38dB)
adjust input levels.
Example: with a microphone input of –60dBm @150Ω at the port, gain
trim can set levels from -22dBu to +16dBu (note maximum preamp gain is
+76dB).
An analog insert point (+4dBu balanced) is provided: it is post-trim
and may be internally bypassed, which is the factory default setting.
Output switches assign the selected source signal to any combina-
tion of the console’s three stereo outputs: PGM (program), AUD
(audition), and/or UTL (utility).
The channel ON and OFF switches are at the bottom of the module.
In addition to being controlled remotely, these can also be programmed
(via internal PCB-mounted dipswitches) to perform a variety of con-
sole control functions, including control room and studio mutes,
talkbacks, tallies, and timer restart.
All audio and control input and output signals are made via four 12-
pin AMP type connectors.
RD-12 / June 00
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