User Manual

170
User Manual
Warnings
The overall input power must not exceed +19dBm
The TWLI modules must be handled with care, in order to avoid damage to
electrostatic sensitive devices.
Inserting or removing TWLI modules
• Do not remove or insert any TWLI module into TPRN sub-rack before
having switched off main power supply.
• The TWLI modules must be handled with care, in order to avoid damage to
electrostatic sensitive devices.
• When installing TWLI modules in the sub-rack, take care to alternate
active and passive cards in order to ensure proper heat dissipation.
• In a multi-sub-rack system, remember to assign to each sub-rack a proper
RS485 bus address before installing the modules (please refer to TPRN
section for further details).
TWLI installation
The TWLI WLAN local interface can be accomodated in any of the 12 slots of a
TPRN active sub-rack.
Note
: In case a new TWLI module has to be installed in a still working Master
Unit, switch off the sub-rack before inserting the plug-in TWLI module
1. Unpack the kit which include
 1 TWLI
 2 RF jumpers (SMA-m; SMB-f), 2 x 40cm
2. Carefully insert the TWLI module in any of the TPRN sub-rack slots and
lock the 4 screws on the front corners.
3. Connect RF cables according to what planned by designer. Use a specific
torque wrench to fix each cable to relevant ports.
4. Switch on the sub-rack. As you switch on the system, carefully refer to
the TFLN Start-up section.
Removing a TWLI module
Switch off the Master Unit power supply and remove RF jumpers. Then
• unscrew the 4 screws and slowly remove the card.
• put the removed TWLI card in its safety box.
• switch on again the Master Unit power supply and refer to TFLN Start-up
section.
TWLI