Operating Instructions and Installation Instructions

General
8
Indicators (LEDs)
The indicators (LEDs) provide you with information on the different operational states
of the telephone system. The meaning of each indicator can be found in the table
below.
Name / icon Function LED on LED off
Power
Operational state Mains power on. Telephone
system ready for operation.
Flashing: Reset button pushed
Mains power off. Telephone
system off
Emergency phone at external line
1 ready for operation
L1
External line 1 Connection with ext. line 1
Flashing: Rhythm of the calling
signal
External line 1 in stand by
L2
External line Amt 2 Connection with ext. line 2
Flashing: Rhythm of the calling
signal
External line 2 in stand by
Night Night programme active Day programme active
Fax
Fax switch Fax switch for external line 1
on
Fax switch for external line 1 off
Time control Time control active Time control deactivated
Door line intercom Connected with door intercom
system via optional door
module TSM1
Not connected with door intercom
system
Service
Service Data communication via
remote update
Tone detection
Saving settings