LED Indications
Indication Colour Description
STATUS Green PBX status indication
• OFF: Power Off
• ON: Power On and running
• Flashing: Starting up/Logging in
Amber PBX status indication
• ON: Ready to shutdown
• Flashing: Shutting down
Red PBX status indication
• ON: Alarm
The cause may be one of the following:
– Power was cut without performing the
shutdown procedure.
– No IP address(es) assigned for the DSP
card(s) by the DHCP server.
– Alarm for an optional service card.
• Flashing (240/minute): Initialise failed
• Flashing (60/minute):
WAN connection session
malfunction (router malfunction)
For more information, refer to "8.6.2 WAN
Connection".
BATT ALARM Red Alarm indication
• OFF: Normal
• ON: Alarm
MASTER Green Master unit status indication
• ON: Master
Slave unit status indication
• Flashing: Running as Backup Master unit
Amber Master unit status indication
• Flashing: Factory default
Slave unit status indication
• ON: Slave
• Flashing: Factory default/Starting up
Red Master unit status indication
• ON: Recovered (Waiting to be switched with
Backup Master unit)
Slave unit status indication
• Flashing: Isolated from Master unit
148 Installation Manual
4.3.1 Mother Board
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