Installation Guide
T942C- and T942C/2 Central Unit
Units with S941C Software
4
Energize all the units in the system. Function indicator LED01 on T942C should light
red for about 1 second, then go over to a flashing orange for a few seconds.
At start-up the Central Unit begins with a short self-test for a few seconds. The
function indicator indicates this by short blinks (green) at one second intervals. The
parameter list in the FLASH PROM is copied to the non-volatile memory.
If no faults are detected, the Central Unit then makes a survey of the modules
connected to the data buses. The function indicator blinks rapidly (green - 5 times/
second) until all data buses are surveyed. After this the function indicator lights
steadily (green).
If it continues to indicate with a steady red check that supply voltage is
12.5 V DC ± 10%.
Flashing indicates a fault as follows:
Colour
red
green
red
* Note: All T942C software is licenced and must be ordered from ATAB. For details
see document TD 91542GB, Ascom Tateco Software Guidelines.
5
If everything seems to be OK but the function indicator still blinks, the fault is
probably located outside the T942C module. Check the other system units
according to the document System Installation or contact your dealer.
6
If section 4 on SW02 is set to ON it must be switched to OFF.
7
Set section 3 on SW02 to ON. Restart T942C by pressing push button S01. The
parameter list will now be read from the non-volatile memory and any new
parameter list can be loaded into the non-volatile memory from a PC equipped with
WinBK.
8
Replace the cover.
When all other units are installed perform the system test described in the applicable
System Installation document:
TD 90227GB for On Site Paging System
TD 91120GB for On Site Paging System 5000
TD 90678GB for Personal Security System
TD 90795GB for Cordless Telephone System CTS 900
2003-01-08 / Rev.C
ON
OFF
100 ms
800 ms
800 ms
100 ms
1 s
1 s
Fault
Incorrect software licence
Parameter fault
Watchdog reset
Handook page
TD 91684GB
*
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