Instruction manual

Clear-Com Communication Systems
ICS 92/52 Intercom Panel Instruction Manual
1-3
Talk/Listen Selectors and Indicators
The following section describes the operation of the talk/listen
selectors and their associated indicators.
Selector Operation
The selectors operate as both talk and listen selectors; they also work
as volume controls when the panel is in listen-level mode (see“Listen
Level Button” on page 1-6). Pressing a selector down accesses a talk
label; pushing it up accesses a listen label. Pushing the talk selector
down and quickly releasing it will “latch” the selector and the talk path
will stay active until it is pressed again. Pressing and holding a talk
selector causes the talk path to stay active only for as long as it is held
down. Listen selectors operate in the same manner.
To prevent the selector on the panel from latching in the talk position
(local latch disable), or to prevent any panel from latching a talk to the
panel (global latch disable) use the configuration program.
Display Screen
The “Answer Back” selector and each talk/listen selector has a
five-character LED display above it to indicate its assigned label. If
more than one talk label is assigned to a talk selector, only the first one
will be displayed.
Pushing the “Listen Labels” button will toggle the talk/listen selector
display between the talk and listen labels. The green LED next to the
“Listen Labels” button will light when the listen labels are displayed.
Talk and Listen Indicators
When a talk path is active, the red LED above the selector lights
continuously. When a listen path is active, the green LED above the
selector lights continuously.
Monitoring/Eavesdropping Indicators
If any other panel begins monitoring a panel a beep (the
monitoring-alert tone) will sound at the panel.
To inhibit the monitoring-alert tone, use the configuration program.
Call-Waiting Indicator
If a panel calls another panel with a selector programmed for that label,
the LED will rapidly flash red. This flashing is a call-waiting tally. To
answer the incoming call, push the indicated talk selector. The
call-waiting tally will be cleared when the call is answered or after the
call is terminated and the answer-back, auto-clear time out lapses.
Regardless of whether a selection is programmed with a caller’s label,
the label will be placed in the answer-back stack (see “Removing
Labels from the Answer-Back Stack” on page 1-5).