Bogen MULTICOM 2000, Руководство по установке

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MCAPI2
The MCAPI2 provides configurable inputs for each of the Multicom audio buses using Bogen's advanced input modules.
A fourth module position allows a priority override function for audio bus 3. Each audio bus input has a C-Form contact
closure that changes state when the installed module detects audio (VOX) activity. An LED indicates the VOX status of
the bus input to aid in troubleshooting. An output level control from the MCAPI2 to its associated audio bus is provided.
Further control over the audio bus signal is provided by the functionality of the modules themselves, and differs depend-
ing on which modules are installed.
1) VOX triggered contact closure. C-Form contact set changes state when the associated module detects audio activity.
VOX detection is actually done on the module itself and the relay follows the module’s VOX activity. Modules without
mute send features, like the BAL2S, will not activate the relay. Therefore module threshold and duration controls (if
applicable) determine relay operation. An LED indicator near each relay will illuminate when audio activity is detect-
ed.
2) Controls signal level applied to audio bus. Level controls on the module will also affect signal level applied to bus.
Bus 3 level control affects the signal level of both the high and low priority modules, but each module's level control
can be set independently.
3) The signal on each audio bus is available here for monitoring purposes. Typically these signals are wired to a
selector switch to allow monitoring. A single ground is used for all of these signal outputs. These outputs are line
level only and cannot directly operate a speaker.
4) 24V DC is available on these terminals, provided for powering a self-amplified speaker for bus monitoring purposes.
Max current should not exceed 150mA.
5) Input module bays accept any of the Bogen Advanced Plug-In modules (output modules are not usable in these
bays).
6) This high priority bay can override and mute the lower priority module that is supplying signal to audio bus 3. The
priority level of the module in this bay (set by jumpers on the module) must be higher than the priority level set on
the module in the Low Priority bay for mute and override operation to work properly.