RTS User Station MCE-325 User Manual

Mce-325, User station, Features line drawing

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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

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