User's Manual
MBSC0800-040-RU
MBSC0800-040-RU April 15, 2013
Page 7
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 2independent bi-directional fiber connections.
Figure 6FIU