User's Manual

Overview High Power Wideband Radio Head (WRH-V)
1-6 044-05251 Rev B
Fiber Optic Unit (FOU)
The FOU is a metal plate mounted on top of the cover pla
te in the upper part of the WRH. The FON and fiber
optic connectors are mounted on the FOU. Figure 1-5 illustrates an FOU with the FON and fiber optic
connectors mounted on the plate. It can also be configured with combiners, splitters, and Wave Division
Multiplexers (WDMs) to obtain a desired combination of several branches with double or single fiber.
Figure 1-5 FOU in WRH-V
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
ne
twork. 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) an
d 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.
FON
DPX