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
Overview High Power Wideband Radio Head (WRH-V)
1-4 044-05251 Rev A
Sub Unit Overview
A number of amplifier PCBAs are individually shielded and located under a metal cover inside the WRH-V. This
cover can be opened outward for access. These amplifier PCBAs are of different types depending on the
supported system. All of the WRH-Vs are built up with a number of sub units which are described in the
following sections.
Wideband Amplifier PCBA (WBA)
WRH-Vs can handle multiple carriers over a wide band. Each band requires one WBA for the uplink and
downlink, and one associated PA or MCPA for the downlink. The cabinet can be equipped with up to two WBAs
along with two PAs supporting two bands or one MCPA supporting one band. Positions 1 and 3, shown in
Figure 1-6, are assigned for a WBA.
Multi-Carrier Power Amplifier PCBA (MCPA)
The MCPA is used to amplify the output signal from the WBA. Each MCPA can handle one band in the downlink
direction. It requires an extra heat sink element on the outside of the cabinet or high cover to dissipate the heat
generated. The MCPA occupies positions 2 through 4 in the cabinet and 6 through 8 in a high cover, as shown
in Figure 1-6.
Distribution PCBA (DIA)
The DIA is the core distribution PCBA to which all other PCBAs and units connect in the cabinet with the
exception of the PA. Figure 1-2 shows a DIA PCBA. A shielded metal frame on the DIA provides the mounting
location for the CU, ALI and RCIs, if used.
Figure 1-2 DIA PCBA
Control Unit PCBA (CU)
Figure 1-3 shows the CU, which is the core microprocessor controller in the WRH-V and is connected to P2 on
the DIA. The CU contains a microprocessor, main memory, flash memory for the CU software, EEPROM
memory for parameters, memory for the event log and statistics, a REFO reference oscillator, ports for local
and remote communication, a battery powered real-time clock, and a MAC identity circuit. It supervises and
controls operational parameters such as gain control and channel handling, alarms, the event log, the
password and the logon. The CU is also a control interface for OM-Online and OMS. Software for the CU can
be downloaded from OM-Online, either locally or remotely. It is located in the lower right part of the shielded DIA
frame.
ALLGON INNOVATION
SWEDEN M105 R6
1
PARKING
FOR W5
W5
8
P27
W6B 10
1
P33
ALARM
P23
LNA
UP-LINK
P32
MODEM
A
U
X
1
P28
DOOR
5
9
6
1
1
16
1
1
M
-
>
S
P11
P34
8
9
15
P26
15 16
S
-
>
M
1
2
3
89
P
3
6
5
X0A
X0B
2
V2
1
16
P12 P13
1
1
1
16
16
16
P4
P5
P6
c
b
a
c
b
a
c
b
a
c
b
a
1P232
1
b
a
1
16P3
16
1
16
P14
1
V1
1
1
1
1
1
4
6
1
15
6
9
15
2
16
1
2
4
5
8
5
P35
P21
PSU
6
10
P31
PC
P29
P24
P25
GND
7
6V6
LNA
DOWN-LINK
LED
P22
1
2
V6B
P27
P26
P23
XOA
XOB
P28
P4 P5 P6 P2 P3 P31 P21 P35 P33
P32
P11 P12 P13 V1P14 P22P29P34 V2P36
V6
GND
P25
P24