Operation and Maintenance
269
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
6. 6. 2 Operating state and error displays
6. 6. 2. 1 System operating state
During the start-up phase, various self-tests are performed and the individual
phases are indicated with the status LED on the front panel (see "Status LED",
page 241).
When operation is OK, the status LED flashes green, regularly, and once per second
in the display on the front panel. The system is in normal mode. All additional infor-
mation and operating modes are indicated using the colour display on the front
panel (see "Colour display", page 244).
6. 6. 2. 2 System error displays
Whenever the system detects an error, it displays the corresponding error code in
the colour display on the front panel (providing the communication server is still
powered and the display is working). During system startup, if the colour display is
not yet fully functional any errors that occur are indicated with the status LED (see
"Error display with status LED", page 243).
In the event of sporadic errors check the installation for earth loops.
6. 6. 2. 3 Terminals
Tab. 106 Malfunctions on the terminal side
Error description Error cause / error handling
Digital system phones on the DSI bus display Not
Configured along with the node number, the slot
number and the port number.
No terminal has yet been created on the connected port or
an incorrect terminal selection digit (TSD) has been allo-
cated to the terminal:
• Check system and terminal configuration
• Check installation and connecting cable
System phones do not obtain dial tone when seiz-
ing a line; display reads Not available.
System is prebarred
• Unlock system
• Replace phone or inteface card if necessary
Terminals with configurable dialling method
experience sporadic malfunctions whenever con-
trol key is pressed.
System earth must not be connected on terminals config-
ured for MFV/DTMF (double signalling on Flash/earth key).
Analogue terminals do not obtain a dial tone
when off-hook.
No terminal has been created on the connected port or the
terminal created has not been allocated to a user.
• Create a terminal and allocate a user
• Check installation or connecting cable
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