DATASHEET
P8136
11
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Line busy signalling LED
Local Station
- In the idle condition the LED is OFF.
- While a call is in progress the LED remains steady ON to signal that the station is active.
- From the idle condition the LED starts to flash slowly to signal that a call is in progress by another station, that has seized at least one zone of the
group in question
- While a call is in progress the LED switches from steady ON to fast flashing to signal that its call has been cut off by a station with a higher
priority.
- Calls in progress, if any, by stations not belonging to the group in question and addressing zones outside the group are not signalled by the LED
on the Local Station.
Master Station
- In the idle condition the LED is OFF.
- While a call is in progress the LED remains steady ON to signal that the station is active.
- From the idle condition the LED starts to flash slowly to signal that a call is in progress by another Master Station that has seized the line of the
system to which the Master Station in question belongs.
- While a call is in progress the LED switches from steady ON to fast flashing to signal that its call has been cut off by a station with a higher
priority.
- Calls in progress, if any, by a Local Station are not signalled by the LED on the Master Station, which can make calls with a higher priority at any
time.
Multi-Master System
- Calls in progress, if any, by a station not belonging to the Master System in question and addressed to a zone outside the one to which the station
belongs are not signalled by the LED on the Station. In these cases, calls may be made to zones outside the Master System in question only if the
station in question has a higher priority than the one that is already active. If a call is made, the LED will be steady ON, otherwise it will remain
extinguished.
- Similarly, when a call in progress from a system station addressed to outside the system is cut off by another with a higher priority, the LED will
extinguish to signal that the call has been cut off.
