Clear-Com LMC-64 - Manual (Page 33)

Clear-Com
Eclipse Median Instruction Manual 2 - 1 3
Active Lights
When lit, an “active” light indicates successful communication between
the port card and a connected remote device such as an intercom
panel or interface.
Each of the port card’s 16 yellow “active” lights corresponds to one of
16 rear-panel connectors or “ports” to which remote audio devices can
be connected.
VOX Lights
When lit a “VOX” light indicates that the audio level on a connected
remote device, such as an intercom panel or interface, has exceeded a
preset threshold. The threshold audio level is set through the ECS
application.
Each of the port card’s 16 green “VOX” lights corresponds to one of 16
rear-panel connectors or “ports” to which audio devices (intercom
panels or interfaces) can be connected.
Frame Data Light
The green “frame data” light illuminates to indicate successful
communication between the port card and the CPU card.
Status Light
The red “status” light illuminates to indicate a failure in communication
between the port card and the CPU card.
INTERFACE CARD DESCRIPTION
The following interfaces can be installed in the Median:
• FOR-22. A two-channel, universal 4-wire interface with transformer
isolation, opto-isolation for logic input, and relay contacts for relay
out.
• CCI-22. A two-channel, isolated translator of 4-wire audio from the
matrix to two-wire intercom circuits, such as Clear-Com party line
products.
• TEL-14. Allows two standard 2-wire POTS telephone lines to connect
to matrix ports.
• RLY-6. Provides six relays that can be wired for general purpose use
and controlled directly from the matrix.
• GPI-6. Provides a method to read external switch closures and
control voltages and translate them to operations in the matrix.
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