Clear-Com i-Series Panels - Manual (Page 67)

Clear-Com Communication Systems
I-Series Instruction Manual
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from the central matrix. All of the audio that you would hear at a panel’s
speaker, from all sources, is sent through this connector. The output’s
volume is at line level, bypassing the panel’s audio controls.
This output is typically connected to an externally powered speaker,
amplifier, or ceiling speaker system.
The line-level output connector’s output impedance is 600 Ohms and
its level is nominally 0 dBu. Frequency response is 50 Hz–15 kHz (± 2
dB).
Hot-Microphone Output Connector
The A3M standard XLR connector labeled “J8” provides a line-level
output of the selected microphone’s audio (headset or panel) that is
always “on” (or “hot”). Only the panel’s microphone on/off key can
override this output.
This connector’s output impedance is 600 Ohms. Its level is nominally
0 dBu. Frequency response is 50 Hz–15 kHz (± 2 dB).
A typical application is to permanently wire the panel’s microphone
audio output to all cameras so that the camera operators can hear the
director at all times, regardless of what other tasks they are
performing. This audio output can also be connected to many types of
external speakers, such as external wall speakers. The purpose of this
output is to provide an audio output that is always “on” and cannot be
interrupted by other audio sources.
Note: The Eclipse Configuration System’s “listen” or
“eavesdropping” function will accomplish the same results
as the hot-microphone output. See the Eclipse
Configuration System Manual for more information.
Balanced Program Input Connector
The A3F standard XLR connector labeled “J9” connects an external
source of audio to your panel so that you can hear it in addition to the
intercom audio at your panel. The external source of audio, or
“program” audio, can be heard on your panel’s speaker and headset,
but it cannot be heard by other panels in the Eclipse matrix system.
External Dynamic Microphone Input Connector
The A3F standard XLR connector labeled “J10” is a balanced input for
an external dynamic microphone. It is not transformer isolated. Its input
level is -40 dBu with a gain adjustment range of ± 5 dB. Impedance is
200 Ohms.
J8
J9
J10