RTS MCS-325, Руководство пользователя

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MCE-325
User Station
The MCE-325 is a four-channel, programmable intercom station. It may be used as a headset station or, with the addition of
the MCS-325 Modular Speaker, as a speaker station. It may be mounted in a console or equipment rack via optional mounting
kits. The MCE-325 can be used with either two-wire or four-wire intercom lines, or a combination of both. In the labeling on the
MCE-325, references to channels 1, 2, 3, and 4 indicate two-wire lines; references to four-wire A and four-wire B indicate four-
wire lines. The MCE-325 can be interfaced to a variety of external devices including external program sources, two-way radios,
paging systems, and satellite circuits.
Call Signaling
Call signaling is accomplished using an inaudible (20 kHz)
signal to activate a call indicator LED.
Remote “talk-off”
Active, unattended remote station microphones may be
deactivated by momentarily injecting an inaudible (24 kHz)
signal into the corresponding intercom line. The MCE-325
can send and receive “talk-off” signals.
VOX circuit
The MCE-325 may be programmed for voice activation of
the microphone.
Simple IFB
Program audio assigned to a channel is interrupted during
talk.
External device keying
External devices, such as two-way radios, speaker mute
relays, or paging systems may be activated through key
outputs at the auxiliary connector on the rear panel. The key
outputs may also be used to expand the simple IFB function,
allowing any one of a number of MCE-325 stations to inter-
rupt the program source and talk on the line.
Microphone Limiter
The microphone preamplifier circuit contains a limiter, which
helps to equalize voice levels.
Fully programmable
Retains programming even when power is shut off.
Instantaneous Auto-Reset
Instantaneous Auto Reset (IAR), the newest technology in
performance and safety, which uses a revolutionary new
circuitry that dynamically monitors line fault conditions. Then,
when the fault is removed, automatically brings individual
power supply channels up.
Features
Line Drawing