User Manual

14
User Manual
The RF splitters/combiners (TLCN2 and TLCN4): TLCN2 is a 2-way
splitter/combiner. TLCN4 is a 4-way splitter/combiner. They can be used in a
variety of different situations, such as:
• To connect a BTS with several master optical TRXs.
In uplink the TLCN2 (or TLCN4) combines 2 (4) RF
signals coming from different master optical TRXs
onto a common RF signal, entering the BTS. In
downlink the TLCN2 (or TLCN4) splits the downlink
composite RF signal coming from the BTS onto 2 (4)
RF ports, entering different master optical TRXs;
• To connect several BTSs to a master optical TRX. In
downlink the TLCN2 (TLCN4) combines the RF signals
coming from different BTSs onto a common RF
signal, entering the master optical TRX. In uplink
TLCN2 (TLCN4) splits the composite RF signal coming
from a master optical TRX into 2 (4) RF signals
entering different BTSs.
The WLAN interface board (TWLI):.it connects 3 WLAN
Access Points to each TFLN, and it is necessary when
802.11b/g WLAN distribution through the DAS is required.
Dimensions: Width = 14 TE, Height = 4HE (2 slots in the
master unit sub-rack).
The power limiter (TMPx-10): it monitors the DL power coming
from the BTS, and attenuates it by 10 dB in case of overcoming of
a programmable threshold level.
TMP2-10 Power Limiter is for 2G and 2.5G signals, working at 900
MHz and 1800 MHz.
TMP3-10 Power Limiter is for 3G signals.
Both modules are 7TE wide and 4HE high.
Fig. 2.11: The TLCN2 and
TLCN4 splitters/combiners
Fig. 2.12:
The TWLI Wi-Fi interface board
Fig. 2.13:
The TMPx-10 power limiter