User Manual

169
MN024-08
Description
Britecell Plus system allows
distributing WLAN service
(802.11b and g) through
the auxiliary channel while
concentrating all the Access
Points together with the central equipment.
The TWLI module allows connecting up to 3 Access Points to one TFLN master
optical TRX and setting up to 4dB attenuation, if needed, on the DL path.
RF ports
• 3 DL RF input
ports receiving
signals from
up to 3
different
Access Points
• 1 DL RF
output port to
the TFLN
auxiliary port
• 1 UL RF input
port from the
TFLN auxiliary
port
• 3 UL RF output
ports sending
signals to up
to 3 different
Access Points
4dB attenuation range is available on the DL path in order to adjust levels
coming from the Access Points.
TWLI main applications
Main applications of the TWLI module are:
• providing to the TFLN the WLAN signals coming from up to 3 Access Points
concentrated on the equipment room.
TWLI power supply
Each TWLI WLAN interface module is supplied by the sub-rack back-plane
(+12V).
The power consumption of each TWLI is 2W max.
TWLI
DL RF input
from Access Points 1 to 3
Attenuation setting buttons
DL RF output to TFLN
UL RF input from TFLN
UL RF output
to Access Points 1 to 3
Fig. 5.25: The TWLI wi-fi
local interface
Module name:
Wi-Fi Local Interface
TWLI