Operation and Maintenance
271
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
On an SB-8ANT radio unit the middle LED indicates whether the internal or external
antennas are active. If the LED is lit green, the external antennas are active.
Note:
After the system initialization the radio unit starts in status "DSI ok". It is
only ready to operate once at least one DECT user has been entered in
the numbering plan or the parameter DECT system state has been set to
Active in the AMS Configuration Manager.
6. 6. 2. 5 Malfunction of the Aastra DECT radio unit
Tab. 108 Malfunction of the Aastra DECT radio unit
Error description Error cause / error handling
No radio connection in a coverage area. Check LED on radio unit:
LED is flashing red (short red phase):
• Check power supply / line length of DSI bus cable
LED is flashing red (long red phase):
• Check DSI bus cable
• Unplug DSI bus cable for one minute, then reconnect
LED is flashing green (long green phase):
• All B channels busy
Radio unit not activated. LED on radio unit is flashing red/green (various patterns):
• Radio unit in startup phase
LED on radio unit is flashing red (long red phase):
• Radio unit defective
If LED on radio unit not flashing:
• Check trunk connections
• Radio unit defective
• LED of the radio units deactivated throughout the system
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