Clear-Com ICS-2003 - Manual (Page 13)

Clear-Com Communication Systems
ICS-2003 Intercom Panel Instruction Manual
1 - 5
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 Mode” on page 8). 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.
Talk and Listen Indicators
When a talk path is active, the selector’s red LED lights continuously.
When a listen path is active, the selector’s green LED 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 with the
caller’s label, the red LED will flash rapidly. 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 7).
In-Use Tally Indicator
If a selector is assigned to a label and another panel is currently using
that label, the LED will double-flash once per second to indicate the
label is in use. This tally must be enabled from the configuration
software.
Telephone Off-Hook Tally Indicator
When a telephone interface is assigned to a talk selector, the talk LED
will flash once per second if that telephone is off the hook. This tally
must be enabled from the configuration program.