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Page 89
Version 6.0
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NovaTec
Mobile Gateway S20
5.1.11
Status displays on the PTI
At the face plate PTI has light emitting diodes which indicate the operational mode. These
light emitting diodes are splitted into two functional sections. The green light emitting
diodes indicates operation condition of the processor (Ready LED) and the power supply
on the U interfaces (Power LED). The red light emitting diodes indicates the state of layer
1 for every channel of the S
0
and U interface.
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 1F3201-LP only) is
activated.
The status of layer 1 can be identified for each interface independently at the two red
LED’s which are placed next to each other. The left LED (Picture 41: lower one)
communicates the status of layer 1 for the BRA interface and the right one (Picture 41:
upper one) for the U interface. 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 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 starts flashing.
In operation condition the uP LED flashes continuously. The Ready LED and both LED’s
of the activated interfaces are continuously shining. When there are one or more lines
deactivated by the coding switch the belonging LED’s are off.
After switching on the System, every PTI-US starts an on board diagnosis. During this
procedure the system tests all internal components of the U and then all internal components
of the S interfaces. Is there an error detected the concerned PTI-SU is executing a reset
and then starting a new test. If the fifth trial is not succesful the test stops and a failure
code appears at the LED’s. Is the EPROM test negative, there will be no further test, the
system stops and a failure code appears at the LED’s.
After starting the system the remote power supply of the U interfaces will be switched on
after approximately 1 minute (this is only concerning the module 1F3201-LP, visible by
the caution label at the front panel of the board). Is the PTI-SU 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.
To actualize the Status-Display press the Reset-Button.
There is no power supply to the BRA interfaces on the PTI-US (2F3601).
Only concerning PTI-SU with power supply at the U interfaces (1F3201-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).
