Planning and installation
64
to be able to do this the line reversal between connection to the external line and
connection to the telephone system will be analysed.
The power line failure indication is set up as follows:
Install the telephone system as describer in chapter "Mounting the telephone
system". The telephone system is in operation and connected to external line 1.
•
Install tiptel 272 at extension 21.
•
Set the MWI switch to position PR1 or PR2 whichever position results in
the LED lighting.
•
Simulate power line failure: Unplug the AC adapter.
•
LED stays on:
Interchange the wires at telephone extension (port) 21 to change the
polarity. After this the LED should be off. Proceed with "LED off".
•
LED off:
Set the MWI switch to position PR1 or PR2 whichever position results in
the LED lighting.
•
Restore power: Plug the AC adapter in again.
tiptel 272 now will indicate normal operation of your telephone system, the LED is off.
In case of a power line failure the LED goes on and so will inform you about the
situation.
Reset button
The reset button can be actuated from the system's connector side with a small tool
such as a screwdriver. The reset button can be used to initiate three different
functions.
Reset to factory default settings
Keep the reset button pushed while plugging in the AC adapter of your telephone
system.
the power LED will flash until you release the reset button. The telephone system will
restore factory default settings. The telephone book entries, however, will not be
affected.
Warm start
Push the reset button while in normal operation.
The telephone system will perform a warm start. All telephone calls will be
terminated. In case telephone 21 has been picked up it will be connected to external
line 1 directly.
