Siemens TRAFFIC CONTROLS TC12 Manual De Usuario
TC12 Installation, Commissioning & Maintenance Handbook
CMSL Control not starting on time more then one second between control
messages.
BIC, CMS If Instation not transmitting sufficient bytes for this OTU if last OTU
on line.
CCRC If Instation transmitting too many or too few control bytes for this OTU.
POSSIBLE FAULT:
Minor incorrect timing / configuration for this OTU
at Instation. If already tested at Instation and no
control errors were recorded in Outstation or Monitor
modes (test 6 and 7), then this would indicate a
problem with the line.
at Instation. If already tested at Instation and no
control errors were recorded in Outstation or Monitor
modes (test 6 and 7), then this would indicate a
problem with the line.
If ONLY any of the following faults are recorded when in Instation or Monitor
modes:
modes:
RMSL Reply not starting on time
BIR, RMS If OTU not replying with sufficient bytes
RCRC If OTU replying with too many reply bytes
CNL2 OTU replying too early.
BIR, RMS If OTU not replying with sufficient bytes
RCRC If OTU replying with too many reply bytes
CNL2 OTU replying too early.
POSSIBLE FAULT: Minor incorrect timing / configuration in OTU.
If any of the following faults are recorded when in Instation or Monitor mode:
CD (green led) on Instation modem board not lighting.
On test set the following errors occur
RFE, RCRC, IOR, SRM, BIR, RSE, RTE,
On test set the following errors occur
RFE, RCRC, IOR, SRM, BIR, RSE, RTE,
POSSIBLE FAULT: Data corruption due OTU. Check for baud rate incorrect,
2/4 wire selection incorrect or full/half duplex selection incorrect, for
the line.
the line.
4.5.3.3 Fault finding - Where to start?
Firstly, it is best to determine from the errors recorded on the UTC TCC whether it
appears to be a complete line that is faulty or individual OTU(s); i.e. some but not
all OTUs experiencing faulty communications, and keep this in mind whilst testing.
Then ensure that the test set is configured correctly for the line in question. Check
the configuration against the UTC TCC database information for the line. If
possible this information should have previously been validated in the test set as
detailed in "Commissioning a line".
IF it is acceptable to take all the OTUs on the line OFF LINE set the test set in
Outstation mode.
ELSE set it in monitor mode.
Connect the test set to the appropriate line test jacks on the modem boards in the
TC12 Instation cabinet.
appears to be a complete line that is faulty or individual OTU(s); i.e. some but not
all OTUs experiencing faulty communications, and keep this in mind whilst testing.
Then ensure that the test set is configured correctly for the line in question. Check
the configuration against the UTC TCC database information for the line. If
possible this information should have previously been validated in the test set as
detailed in "Commissioning a line".
IF it is acceptable to take all the OTUs on the line OFF LINE set the test set in
Outstation mode.
ELSE set it in monitor mode.
Connect the test set to the appropriate line test jacks on the modem boards in the
TC12 Instation cabinet.
666/HE/43100/000
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