Vitec Group Communications
Eclipse Median Instruction Manual
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OPERATING THE PORT CARD
Port cards connect the central matrix to intercom panels and
interfaces. In a linked system, port cards connect trunk lines. The
analog card, designated the “MVX-A16,” supports normal audio feeds,
user panels, and trunk lines.
All cards contain a voice detection mechanism (“VOX”) that you
program from the ECS configuration software. VOX detection allows
you to know when the audio on a particular channel has exceeded a
threshold. This is particularly useful for channels that are inactive
periodically, so that you are visually cued when audio appears on the
line.
Each port card has two system status lights. A port card’s FRAME
DATA light illuminates to indicate the card’s successful communication
with the CPU card. A port card’s STATUS light illuminates to indicate a
failure in communication between the port card and the CPU card.
When all port cards are lined up in the matrix, the system status lights
form a horizontal row showing the overall state of the system.
RESET BUTTON
Pressing the reset button causes the card and all connected audio
devices to momentarily stop their current activity and to restart. The
card’s “frame data” light goes off when the reset starts and comes back
on when the reset is complete.
During the reset, configuration information downloads to the card and
its connected audio devices from the CPU card. If the entire system is
operating except for one port card, or one or more panels connected to
the card, press the reset button for that card only.
Note: The reset button is slightly recessed from the front panel to
prevent it from being accidentally pressed. You need a tool,
such as a bent paper clip, to press this button.
POWER SUPPLY LIGHTS
+12-Volt and -12-Volt Power Supply Lights
The matrix’s +12-volt and -12-volt power supplies provide electric
current to these two green lights. When lit, these lights indicate that the
matrix’s +12-volt and -12-volt power supplies are present and
supplying electric current to the card.
+5-Volt Power Supply Light
The matrix’s +5-volt power supply provides electric current to this
green light. When lit, the light indicates that the +5 supply is present
and supplying electric current to the card.
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