User Manual

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User Manual
As shown by these tables, the LEDs show only the alarms concerning the
board where they are housed: so, a red LED which is switched on at TSRX
front side reveals an alarm affecting the TSRX module itself (it does not deals
with the alarms affecting the other module of the i-link slave-side, which is an
TDTX300, and whose alarms will be detected by its own LEDs). Moreover,
these tables show that the LEDs reveals only major alarms, whereas the
minor alarms (i.e. the low priority ones) are revealed only by the LMT
software or through the TSUN supervision system. The minor alarms usually
detect critical situations which should be checked so as to avoid future
possibile system faults.
Although any alarm detected by a LED on the i-link modules should be
verified through LMT or supervision software when an accurate check is
needed, some ordinary maintenance procedures could be carried out quickly
following the instructions described hereinafter.
TDTX300 and TDTX500 troubleshooting
The TDTX modules are basically two optical transmitters whose alarm status
cannot be influenced by dirt optical adapters or by some problems in
fiberoptics cables. If any red light is switched on in a TDTX front panel, please
check if you have connected properly the RF jumpers. If the RF connections
prove to be ok and the red LED keeps on switching on, please contact the
manufacturer.
TMRX500 module troubleshooting
Ordinary troubleshooting procedures which can be carried out on TMRX500
module first involve a check of the optical adapters status and of the
fiberoptics cables. If the alarm status still persists, a reboot of both the
TMRX500 module and of the TSRX3xx/8 module can be performed so as to
re-inizialize the link.
Quick TMRX-500 troubleshooting procedure
(The following procedure is summarized by the flow-chart in fig. 5.40b)
In case the red LED is ON, please follow these steps:
1. Clean the optical adapter
2. If the problem still persists, refer to TMRX/TSRX fiber optical
troubleshooting so as to check if the optical connectors and, the optical
cable and the optical jumpers have some problems.
3. If previous actions didn’t make the LED switch off, a reboot of both the
TMRX500 module and of the TSRX3xx/8 module (on the slave-side) could
be performed so as to test modem connectivity.
4. If the red LED still remains on, please check the alarm status by the LMT or
the supervision unit in order to better understand the problem and its
possible solution.
TILx-
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HLW