User Manual

MN024-08

Case F start-up”).

5 - Close the unit, and fasten the 4 screws indicated in fig. 3.39c 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 fig 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 both

LEDs have to be the one reported in table 3.9. 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

identification 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

CaseF