User's Manual

Overview High Power Wideband Radio Head (WRH-V)
1-6 044-05251 Rev A
Fiber Optic Node (FON)
The FON is the main part of the FOU. It is a bi-directional electrical/optical signal converter and a node in a fiber
network. In addition, the FON has all the functionality included in the CU PCBA and contains battery backup.
It has also functionality for:
• Electrical and optical signal supervision
• Internal and external alarm handling
• RS232 interface for local PC control via an O&M software (OM-Online)
• Remote control via an O&M software (OM-Online or OMS)
• Interfaces for RCU and FLI
• Battery backup with charger
There are two versions of the FON; one with three SMA ports (UL, DL and RX Mon) and the other with four SMA
ports (UL, DL, RX Mon and TX Mon). The FON also has two optical ports for DL and UL fiber connections.
Power Supply Unit (PSU)
The PSU supplies DC power to all of the components in the WRH-V.
Remote Control Unit (RCU)
The RCU is an optional communication unit for remote control of WRH-Vs via PSTN or RF modems. RCU types
and details are described in Chapter 4.
Alarm Interface PCBA (ALI) and Remote Control Interface PCBA (RCI)
The ALI handles alarms and alarm communication. It is replace with an RCI if an RCU is used and provides an
interface between the CU and an RCU for remote communication via modem. The RCI also handles alarms
and alarm communication. Either unit is located in the lower left part of the shielded DIA frame.
Sub Unit Locations
The MCPA is located at positions 3 and 4 in the cabinet. A WRH-V is equipped for one band in the cabinet and,
if required, an additional band in a high cover. PCBA positions are illustrated in Figure 1-6 and a block diagram
is located in Appendix A.
Figure 1-6 WRH-V Sub Unit Locations
1234
LNA - UL
PSU
(RCU)
DPX
CUALI/RCI
WBA
DL/UL
FOU
MCPA DL
5678
PSU
(RCU)
DPX
CUALI/RCI
WBA
DL/UL
FOU
MCPA DL
FON FON