User's Manual
Table Of Contents
- High Power
- Wideband Radio Head (WRH-V)
- Table of Contents
- Chapter 1 - Product Description
- Chapter 2 - Controls, Indicators and Connectors
- Chapter 3 - Installation
- Chapter 4 - Maintenance
- Chapter 5 - Specifications
- Appendix A - Block Diagrams
- Chapter 1 Product Description
- Introduction
- Scope of Manual
- Safety
- Overview
- Figure 1-1 Powerwave Wideband Radio Head (WRH)
- Chassis Design
- Wideband Amplifier PCBA (WBA)
- Multi-Carrier Power Amplifier PCBA (MCPA)
- Distribution PCBA (DIA)
- Figure 1-2 DIA PCBA
- Control Unit PCBA (CU)
- Figure 1-3 CU PCBA
- Low Noise Amplifier (LNA)
- Figure 1-4 LNA
- Duplex Filter (DPX)
- Fiber Optic Unit (FOU)
- Figure 1-5 FOU in WRH-V
- Fiber Optic Node (FON)
- Power Supply Unit (PSU)
- Remote Control Unit (RCU)
- Alarm Interface PCBA (ALI) and Remote Control Interface PCBA (RCI)
- Figure 1-6 WRH-V Sub Unit Locations
- Figure 1-7 Fiber Optic Star Configuration
- Figure 1-8 Multi-operator System
- Chapter 2 Controls, Indicators and Connectors
- Chapter 3 Installation
- Chapter 4 Maintenance
- Chapter 5 Specifications
- Appendix A Block Diagrams
High Power Wideband Radio Head (WRH-V) Overview
044-05251 Rev A 1-3
Overview
Figure 1-1 Powerwave Wideband Radio Head (WRH)
Powerwave WRH-Vs work as bi-directional on-frequency amplifiers used to extend coverage into uncovered
areas in wireless mobile systems such as base station fringe areas, tunnels, convention centers, airports and
buildings. It receives, amplifies, and transmits signals to/from a base transceiver station (BTS) to/from mobile
stations (MS) with both directions being served simultaneously. Connections to the WRH-V are made with N-
type or 7/16" male connectors.
WRH-Vs are microprocessor controlled with alarm and operational status LEDs visible on the front cover.
Cooling is provided through convection heat dissipation. Operational parameters, such as gain and power
levels are set using a PC running Powerwave OM-Online software which communicates with the WRH-Vs
either locally or remotely via modem. Remote operation can be performed via PSTN or a GSM net. The
Operation and Maintenance System (OMS) provides for Network Operations Center (NOC) configuration and
alarm monitoring.
WRH-Vs can be configured in many combinations depending on the wireless system, single or double system
operation, and output power. The following paragraphs provide a description of the different models of WRH-
Vs available.
The WRH-V is a fiber fed system designed to provide a high output power level and comes equipped with a
MCPA in the downlink path. The MCPA restricts the number of bands to one in the cabinet and one additional
band if a high cover is used. The MCPA is located in the cabinet and is supplied from the existing PSU.
Chassis Design
The WRH-V is housed in a cast aluminium waterproof chassis, class NEMA4 / IP65, approved for outdoor use
but is also suited for indoor installations. The chassis consists of a cabinet and a cover attached with hinges.
The cabinet contains the WRH-V circuitry. The cover comes as either a low or high version. The high cover can
be used as an empty cover or be equipped as a part of the WRH-V or an independent WRH-V unit. A WRH-V
with a high cover that is equipped as two independent units can, for example, be equipped for channel selective
operation in the cabinet and band selective operation in the cover.
Inside the WRH, a number of amplifier PCBAs are individually shielded and located under a metal cover that
can be opened outward. These PCBAs are of different types depending on the supported system.