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Page 78
Version 6.0
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NovaTec
Mobile Gateway S20
5.1.5
Status Displays on the ULU
The uP LED displays by flashing that the processor is in operation. The Power LED shows
by continuous shining that all switches of the coding switch are in the on position, layer 1
is ready and the remote power supply of all U interfaces (module 1F5010-2-LP only) is
activated.
The status of layer 1 can be identified for each interface independently (see picture 35)
via the 4 LED’s which are positioned next to the
μ
P LED. The lower LEDs have no
meaning and are not connected. The upper LEDs show the layer one status of each individual
line of the board. (see Picture 35). When layer 1 is activated the LED’s are continuous
shining. In case of an error they are flashing and the Ready LED extinguishes. Is for example
layer 1 of an U interface out of action the concerned U LED is flashing and the Power or
ready LED is off.
When there is for example a short-circuit at the U interface, the LED of the concerned
interface and the Ready LED start flashing (module 1F5010-2-LP only).
In operation condition the uP LED flashes continuously. The Ready LED and the appropriate
LED’s of the activated interfaces are continuously shining. When there are one or more lines
deactivated by the coding switch the associated LED’s are off.
After switching on the System, every ULU starts an on board diagnosis. During this
procedure the system tests all components of the U interface and then all other internal
components. If there is an error detected the concerned ULU executes a reset and then
starts a new test. If the fifth trial is not succesful the test stops and a error code appears on
the LED’s. Is the EPROM test negative, there will not be a further test, the system stops
and a error code appears on the LED’s.
After starting the system the remote power supply of the U interfaces will be switched on
after approximately 1 minute (this only concerns the module 1F5010-2-LP, visible by the
caution label at the front panel of the board). Is the ULU inserted in a system which is
actually in operation mode, the remote power supply of the U interfaces will also be
activated after approximately 1 minute. But if you activate a channel after starting the
system by the coding switch, the power supply of the U interface will be switched on
immediately.
Only concerning PTI-SU with power supply at the U interfaces
(1F5010-2-LP):
The U interface is powered by an internal power supply of 115V.
Observe for this reason all precautions for personal protection (switch
off the system, seperate the interface from the system and deactivate
the interface)
