User's Manual

93MN024-010

TFAM

Case F

as soon as the local unit will be switched on (for further details about the start-up of the

whole system, please refer to the section ”TFAx Case F start-up”).

5 - Close the unit, and fasten the 4 screws shown in ﬁ g. 3.6.4c by using the torque key.

TFAx Case F start-up

Before the Case-F Remote Unit is switched on, make sure that:

• the modules hosted in the master unit have been connected each other with RF jumpers,

according to the system design

• every TFLN master optical TRX has been connected to its Remote Units

• each Remote Unit has been connected to its coverage antennas

For a correct system start-up, all the Remote Units have to be switched on before the master

unit.

Once the Case-F Remote Unit has been switched on, its behaviour could be checked by

unscrewing the four hexagonal screws (see ﬁ g on the sides of the case-F), removing the cover,

and looking at the control LEDs. When the system starts-up, their status can be summarised as

per the following steps.

1. When the Remote Unit is turned on, both the LEDs turn on for a couple of seconds.

2. After that, the unit green LED remains on (thus indicating proper power supply), while the

red LED switches off as soon as the TFLN master unit is turned on (meaning that DL optical

power is OK and no alarms are present).

3. Once the TFLN master unit has been switched on, the status of the LEDs is described by

Table 3.6.1. If the red LED remains on, please refer to the troubleshooting section.

4. Once it has been switched on, the Remote Unit starts working correctly. Anyway, in

order to be recognized by the supervision management system, it is necessary for the

corresponding TFLN master optical TRX to carry out the discovery phase (please refer to

Supervision System Manual for more details). During this phase, (whose duration depends

on the system complexity, and which can last at max. 4min) the TFLN LED “

“ blinks.

Do not connect/disconnect any cable or any piece of equipment during the discovery

phase! This may result in no identiﬁ cation of the Remote Unit.

Note: if then 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).

TFAx Case F troubleshooting

Faults can be revealed by LEDs on the Remote Unit (RU) front panel as well as by LMT or

Supervision System (running on the remote supervision unit)