User Manual

MN024-08

whose duration depends on the system complexity and which can last at

max. 4min, the TFLN LEDs ┌┘ blink. Do not connect/disconnect any

cable or any piece of equipment during the discovery phase! This

may result in failing the identification of some equipment.

o Finally, please note that the receiver module TSRX2xx/8 has only one

connection with the subrack backplane, so that the LMT software and the

supervision system will detect it as a 1-slot card. More in details, only the

slot which hosts the TSRX LED alarms is recognized by LMT or

supervision. The other 2 slots hosting the TSRX receiver are therefore to

be masked through the LMT or the Supervision System Interface (please

refer to the relevant user manuals) in order to avoid fictitious alarm

notifications.

TILx – HL troubleshooting

Faults on the i-link modules can be revealed:

• by LEDs on the front panels of the modules themselves

• by the LMT software running on a PC connected to a master side or a slave-

side subrack via RS232 port;

• by the supervision system interface managed by the remote supervision

unit, usually placed conveniently on the master-side.

Both LMT and supervision system provide full information about the device

causing the alarm. As a consequence, troubleshooting procedure can be very

immediate when failure detection is directly carried out through LMT or

supervision system.

The tables 5.17, 5.18, 5.19 reports a brief description of alarm related to the

different i-link modules, together with a reference to corresponding alerted

LEDs and to possible recovery actions.

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

TILx-

-HL

Note: in case discovery doesn’t start automatically, check through the

LMT or the remote supervision whether it has been disabled (refer to

LMT or remote supervision system manuals for further information).