User's Manual

mBSC0800S-005-RUCM11
MBSC2100-005-RUCM11 April 15, 2013
Page 8
to the BTS receivers. Internal splitters, combiners, and software controlled attenuators enable customized
designs to support various RF inputs scenarios.
Figure 5BIU
3.2.1.2 FIU (Fiber Interface Unit)
The FIU provides the interface between the combined RF signals (BIU) and the optical fiber connections.
Each FIU is equipped for 2 independent bi-directional fiber connections.
Figure 6FIU