2. INSTALLATION & CONFIGURATION
This section provides complete instructions for mounting the OPM-3SM in a rack
or on a table. It also illustrates all interface requirements to auxiliary equipment,
including inputs and outputs. Configuration switch settings are provided.
2.1 Installation Steps
These are the general steps for installation:
1. Find a space in a rack or on a table. Mount the unit to the selected place
with it’s wiring at least 18” away from the power supply or other equipment
that generate electrical noise. Secure unit using the supplied mounting
screws.
2. Make sure there is a standard electrical outlet into which you can plug the
power pack. This outlet should NOT be controlled by a wall switch.
3. Make cable connections from the OPM-3SM to the PBX or audio source
and the Paging system,
4. Set DIP switches to the desired operation.
5. Connect the power supply. System OK LED should illuminate GREEN.
6. Test unit operation.
2.2 Hardware Description
FRONT
The OPM-
3SM is a standard 1U 19” rack mount chassis.
The front panel of the OPM-3SM provides user indications of the system
status via LEDs. The description of each LED can be found in section 2.2.1
of this manual.
Configuration switches are also accessible on the front panel of the unit.
The description of the various user configurable settings can be found in
section 2.2.14 of this manual.
7. BACKGROUND MUSIC INPUT
The OPM-3SM allows for a background music source to be mixed with pages
and pre-recorded messages. Background music is muted when pages or pre-
recorded messages are played to the audio output. The BGM Level control
allows you to optimize the level music sent to the audio output.
8. AUDIO OUTPUT
The audio output of the OPM-3SM is the audio interface for your zone controller,
amplifier or public address system. All audio from the paging channels, priority
input, messaging system and BGM input is routed to this output. The OPM-3SM
manages stored pages on a first in, first out basis. This means that pages will be
played in the order they were successfully completed and or triggered,
independent of the particular input. Only the priority input has the ability to
interrupt the playback queue. In the case of a priority page, the system will pause
the playback queue during the priority page, and then continue when the page is
complete.
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