User's Manual

mBSC081921-12 System
Operation Manual Issue 2
© 2009, Bravo Tech Inc. Page 6
Figure 2-3. User Interface of Host Unit
Table 2-1. Host Unit User Interface
Board Name Port Name Description Remark
TX1, TX2 Downlink interface ports to be
connected to BIU
RF signal
RX1, RX2 Uplink interface ports to be connected
to BIU
RF signal
FC/APC1, FC/APC2 Fiber optic interface ports to be
connected to RU
Optical signal
E911-800-1,
E911-800-2
The cellular band coupling uplink
signal for LMU
RF signal
E911-1900-1,
E911-1900-1
The PCS band coupling uplink signal
for LMU
RF signal
FIU
E911-2100-1,
E911-2100-1
The AWS band coupling uplink signal
for LMU
RF signal
TX1, TX2, TX3, TX4 The combined downlink signal to FIUs RF signal
RX1, RX2, RX3, RX4 The combined uplink signal from FIUs RF signal
AWS-1, AWS-2 The interface to AWS band BTS
TX/RX ports
RF signal
PSC-1, PCS-2 The interface to PCS band BTS TX/RX
ports
RF signal
BIU
Cellular -1, Cellular-2 The interface to cellular band BTS
TX/RX ports
RF signal
2.4 Remote Unit Description
The Remote Unit, shown in Figure 2-5 and Figure 2-6, consists of optical module (O/E), downlink
power amplifier, LNA and duplexer. Optical module converts the downlink optical signal from the HU
and splits the RF signal to 3 RU. It also converts the uplink RF signal to optical signal and sends it to