High Power Wideband Radio Head (WRH-V) Installation and Service Manual 044-05251 Rev A November 2007
© 2007 Powerwave Technologies Incorporated. All rights reserved. Powerwave Technologies and the Powerwave logo are registered trademarks. Powerwave Technologies Inc. reserves the right to make changes to documentation and equipment, including but not limited to component substitution and circuitry changes. Changes that impact this document may be subsequently incorporated in a later revision of this document.
High Power Wideband Radio Head (WRH-V) Warnings, Cautions, and Notes Warnings, Cautions, and Notes Warnings, Cautions, and Notes are found throughout this manual where applicable. The associated icons in warnings and cautions are used to quickly identify a potential condition that could result in the consequences described below if precautions are not taken. Notes clarify and provide additional information to assist the user. WARNING: The warning symbol means danger.
Revision Record High Power Wideband Radio Head (WRH-V) Revision Record ii Revision Letter Date of Change A November 2007 Reason for Change New (original) 044-05251 Rev A
Table of Contents Chapter 1 - Product Description Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents High Power Wideband Radio Head (WRH-V) Fiber Optic and RF Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 WRH-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5 Optional Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6 Alarms . . . .
High Power Wideband Radio Head (WRH-V) List of Figures List of Figures Figure 1-1 Powerwave Wideband Radio Head (WRH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 Figure 1-2 DIA PCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4 Figure 1-3 CU PCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Tables High Power Wideband Radio Head (WRH-V) List of Tables Table 2-1 CU PCBA LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 Table 2-2 FON LED Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 Table 2-3 WRH-V Base Unit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Power Wideband Radio Head (WRH-V) Abbreviations Abbreviations The following list of abbreviations are used throughout this manual, the software, and the repeater: AGC Automatic Gain Control ALI Alarm Interface AMPS Advanced Mobile Phone Service BA Booster Amplifier BeO Beryllium Oxide BMU Base Station Master Unit BS Base Station, BS antenna = towards the base station BSA Band Selective Amplifier BSel Band Selective BTS Base Transceiver Station CDMA Code Division Multiple Access
Abbreviations MSC High Power Wideband Radio Head (WRH-V) Mobile Switching Center NEMA National Electrical Manufacturers Association NiCd Nickel Cadmium NMT Nordic Mobile Telephone system NOC Network Operations Center OCM Optical Converter Module OMS Operation and Maintenance System PCN Personal Communication Network (same as DCS) PCS Personal Communication System POI Point of Interconnect PSM Power Supply Module PTFE Polytetrafluoro Ethylene (Teflon) R2R Repeater-to-Repeater RCI R
Chapter 1 Product Description Introduction This manual contains information and procedures for installation, operation, and maintenance of a High Power Wideband Radio Head (WRH-V). The manual is organized into chapters as follows: ❑ Chapter 1 - Product Description ❑ Chapter 2 - Controls and Indicators ❑ Chapter 3 - Installation ❑ Chapter 4 - Maintenance ❑ Chapter 5 - Specifications Scope of Manual This manual is intended for use by service technicians familiar with similar types of equipment.
Safety High Power Wideband Radio Head (WRH-V) ❑ The FON unit contains a class IIIb laser transmitter that emits 2 – 4mW invisible laser radiation during operation. Avoid direct exposure from unconnected laser transmitter or fiber cord. ❑ Do not power up the FON unit if a fiber cable is not attached to the fiber output UL port, neither if a fiber cable is attached to the port but unattached in the other end. ❑ Never look in the end of a fiber cable.
High Power Wideband Radio Head (WRH-V) Overview 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.
Overview High Power Wideband Radio Head (WRH-V) 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.
High Power Wideband Radio Head (WRH-V) Overview Figure 1-3 CU PCBA Low Noise Amplifier (LNA) LNAs are used on the uplink and are located at the top of the cabinet and the high cover, if equipped. An example of an LNA is illustrated in Figure 1-4. All of the coaxial connectors are SMA-type. Signals from the DPX output are fed to the LNA input connector (IN). The OUT1 and OUT2 outputs feed the WBAs in the UL direction. The signal level at these connectors is +20dB referenced to the antenna input.
Overview High Power Wideband Radio Head (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 network. In addition, the FON has all the functionality included in the CU PCBA and contains battery backup.
High Power Wideband Radio Head (WRH-V) Overview Fiber Optic Distribution Networks Fiber optic networks are setup identically to data networks. WRH-Vs are connected in a star configuration as illustrated in Figure 1-7. In this example, a Base Station Master Unit (BMU) is fed by a BTS via an RF cable. An Optical Converter Module (OCM) could also be used depending on the system configuration. The BMU or OCM contain three FONs and provide continuity to the FONs in the four WRHs.
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Chapter 2 Controls, Indicators and Connectors Introduction This chapter contains descriptions of the controls, indicators and connectors for the WRH. Front Cover Indicators Amber Red Figure 2-1 External Indicators Two LEDs, shown in Figure 2-1, are located on the front cover to provide easy identification of a fault in the system. The amber operation LED lights up approximately 15 seconds after the main power is switched on. When the LED is steady, the WRH-V is ready for operation.
PCBA Indicators High Power Wideband Radio Head (WRH-V) Figure 2-2 shows the LED indicators located on the ALI or RCI, the CU PCBAs, the 115/220V main power switch (S) in the cabinet, and the voltage indicator (V). These indicators are described in further detail in the following sections. PCBA Indicators This following paragraphs describe the LED indicators on the main PCBAs inside the WRH. CU PCBA Figure 2-3 shows the location of the LEDs on the CU and Table 2-1 lists their indications.
High Power Wideband Radio Head (WRH-V) PCBA Connections FON PCBA The FON is shown in Figure 2-4 and the LED indicators are listed in Table 2-2. P117 Figure 2-4 FON LED Indicators Table 2-2 FON LED Indications LED Description FLI or F2F Green LED. Fiber Line Interface (FLI). Flashing LED indicates the unit is receiving data over the sub carrier. A steady LED indicates the unit has detected an FLI subcarrier, but is not carrying any data OPER Green LED.
PCBA Connections High Power Wideband Radio Head (WRH-V) Table 2-3 WRH-V Base Unit Connections From To Cable Number Non-Diversity Diversity WBA P2401 M FON P101 VE007 06/3 Used Used WBA P3401 D FON P101 700-16639-001 Not Used Used WBA P1101 M FON P102 VE007 20/2 Used Used PSU DIA P21, P35 VE007 98/1 Used Used M FON P108 DIA P29 VE007 66/1 Used Used D FON P108 M FON P116 VE007 66/1 Not Used Used M FON P111 DIA P36 VE008 05/1 Used Used D FON P111 DIA P112 VE008 05/1
High Power Wideband Radio Head (WRH-V) PCBA Connections Pin 6 AIC Ground. Two alarm outputs are 1 pole closing and 1 pole opening relay outputs insolated from each other. Maximum ratings, related to ground or any other alarm terminal, are 50 VAC / 60 VDC. The alarm outputs are defined as follows: Pin 9 and 1 AO1 and AO8 Closed when operating, otherwise open. Pin 10 and 2 AO6 and AO7 Open when operating, otherwise closed. Pin 11 and 3 AO2 and AO5 Closed at alarm state, otherwise open.
PCBA Connections High Power Wideband Radio Head (WRH-V) Figure 2-6 LNA Table 2-6 LNA Connections LNA Port Connected to OUT LOW IN on the LNA/UL in the cover, if equipped IN ATT +7V LO on the service DPX duplex filter P23 on the DIA PCBA OUT1 P2101 on the WBA PCBA OUT2 Diversity LNA connected to P3101 on WBA PCBA FON Figure 2-7 shows the locations of the connectors on the FON and Table 2-7 lists the port numbers, connector types, and port usage.
High Power Wideband Radio Head (WRH-V) PCBA Connections Table 2-7 FON Connectors (Continued) Port Description P110 W-link jumper, used to terminate units in a W-link. It has to be set in the parking state for all units except for the first and last units in a W-link. The Parking state (P) has the jumper between the center and bottom pins.
Software and Hardware Compatibility High Power Wideband Radio Head (WRH-V) Software and Hardware Compatibility There are different versions of CU PCBA software which can be combined with PCBAs of various revisions. These have unique part numbers and revision information. Table 2-8 lists the software currently available in combination with CU PCBA revisions.
Chapter 3 Installation Introduction This chapter contains unpacking, inspection and installation instructions for installing and powering up the WRH. Site Survey Powerwave recommends that a site survey be performed prior to equipment ordering or installation. Performing a detailed site survey reduces or eliminates installation and turn-up delays. Pay particular attention to power plant capacity, cooling needs, floor space, and RF/DC cabling/breaker requirements.
Mounting High Power Wideband Radio Head (WRH-V) A 411 Ø14 90 135 144 205 250 300 Figure 3-1 Mounting Bracket Normally, the WRH-V is mounted on a wall, pole, or mast. Figure 3-2 illustrates the installation of the mounting bracket on a wall using four fixing screws and a locking screw. Figure 3-2 Mounting Bracket Installation on Wall Figure 3-3 illustrates the installation of the mounting bracket on a pole using two 5.7-inch (144mm) U-shaped clamps and a locking screw.
High Power Wideband Radio Head (WRH-V) Mounting Figure 3-3 Attaching the Bracket to a Pole Figure 3-4 illustrates a mast installation using two 11.8-inch (300mm) bar-shaped clamps and no locking screw. Figure 3-4 Attaching the Bracket to a Mast After installing the mounting bracket, hang the WRH-V on the upper supports, as illustrated in Figure 3-5. Tighten the upper and lower mounting screws to secure it into place using the 6mm hex socket wrench.
Connections High Power Wideband Radio Head (WRH-V) key after the lower screws have been tightened. Make sure the donor antenna, directed towards the BTS antenna, and the service antenna, directed towards the area to be covered by the WRH, are mounted and installed properly. Figure 3-5 Attaching the WRH-V to the Bracket Connections This section describes general examples of how to connect the input and output ports on the WRH.
High Power Wideband Radio Head (WRH-V) Connections Table 3-1 Cable Connection Procedure Step Action 1 Connect service antenna coaxial cable to left-outside DIN connection on cabinet 2 Connect fiber optic cable from OCM or BMU to fiber optic cable demark on FOU 3 Connect station ground to appropriate ground point in cabinet 4 Mount main power plug to main power cord and insert into PSU WRH-V Figure 3-6 illustrates the cables and connections for the WRH-V.
Optional Connections High Power Wideband Radio Head (WRH-V) Optional Connections Alarms Alarm signals from external sensors are received by an ALI or RCI which forwards them to the CU. The RCI is used if the WRH-V has an RCU, otherwise the ALI is used. The software on the CU can activate acoustic or visual alarms or direct the alarm to the P33 alarm port for forwarding via an RCU through OM-Online. Alarms can also be handled by the FON. Alarms are configured through OM-Online.
High Power Wideband Radio Head (WRH-V) Commissioning Table 3-2 Main Power Breakdown Relay Connection Step Action 1 Connect a currentless closed relay contact to pin AI1 and AIC on P33 alarm connector, as shown in Figure 3-8. Alarm is initiated when pins AI1 and AIC are shorted 2 Connect relay coil. Coil must be supplied from same fuse as WRH 3 After commissioning, select Mains Breakdown in alarm configuration window in OM-Online. For details on setting alarm configuration see OM-Online User Manual.
Commissioning High Power Wideband Radio Head (WRH-V) A WRH-V can be configured locally with OM-Online by connecting a standard serial cable from the COM port on the PC to the P31 PC port (RS-232) located to the right in the cabinet as shown in Figure 3-9. The P31 PC port is described in Chapter 2. Details on using OM-Online are described in the OM-Online User Manual.
High Power Wideband Radio Head (WRH-V) Commissioning Passive Intermodulation (PIM) Testing PIM is the non-linear effect of passive RF components in a desired RF transmission band. As higher percarrier transmit power levels are applied to duplexed passive RF networks, PIM becomes an increasingly significant factor in potential receiver desensitization.
Commissioning High Power Wideband Radio Head (WRH-V) Where f1 and f2 are two TX signals entering a WRH-V. The specification for the maximum allowed PIM is -115 dBm per 100 kHz resolution bandwidth at rated output power. To test for PIM follow the steps listed in Table 3-4. Table 3-4 PIM Testing Procedure Step 3-10 Action 1 If BTS signals are present, continue with step 2.
Chapter 4 Maintenance Introduction This chapter contains periodic maintenance and performance test procedures for the WRH. Periodic Maintenance Periodic maintenance requirements are listed in Table 4-1, as well as the intervals at which the tasks should be performed. Table 4-1 Recommended Periodic Maintenance Task Interval Action Inspection of cables and connectors 12 months Inspect power, RF and Fiber cables for signs of damage or wear (frayed insulation, cracks, punctures, etc.
Troubleshooting High Power Wideband Radio Head (WRH-V) Table 4-2 Alarm Troubleshooting (Continued) ID Alarm Text Power 2 3 WRH-V restart Mains breakdown Alarm Unit FON CU External Alarm Description Ceasing PSU2 in the cover works properly again. Ceasing is sent if the PSU2 works at start-up, and there is a corresponding critical PSU2 alarm logged in the Events Log.
High Power Wideband Radio Head (WRH-V) Troubleshooting Table 4-2 Alarm Troubleshooting (Continued) ID 12 Alarm Text High temp Alarm Unit CU Alarm Description Warning The CU PCBA temperature is higher than 90°C Ceasing The CU PCBA temperature has fallen below 90°C 13 REFO error Error Significant REFO drift or error detected by CU 14 Ext REFO error Warning Suggested remedy: Check the reference source and the cables 15 CU battery fault Warning CU RAM battery fault.
Troubleshooting High Power Wideband Radio Head (WRH-V) Table 4-2 Alarm Troubleshooting (Continued) ID Alarm Text Alarm Unit Alarm Description 30 No modem found Remote ctrl None No modem found, that is no answer is returned on a poll string to the modem 33 No connection Remote ctrl None No connection at callback. The WRH-V has tried to call as many times as stated in the alarm call settings. No connection was established. Warning No connection at alarm call.
High Power Wideband Radio Head (WRH-V) Field Replaceable Units Table 4-2 Alarm Troubleshooting (Continued) ID 50 Alarm Text Fiberoptical error Alarm Unit FOT fiber optics Alarm Description Ceasing The cause of the alarm has ceased Configur able If a fiber unit alarm is connected to external alarm 3, then the operator can configure the WRH-V to display this alarm when the fiber optical unit indicates alarm Ceasing The cause of the alarm has ceased 70 Bad table alarm CU Error Requested tab
Field Replaceable Units High Power Wideband Radio Head (WRH-V) The following units can be replaced in the field on-site by a qualified technician with experience maintaining RF equipment: ❑ FON ❑ PSU ❑ WRH FON To replace a FON PCBA, follow the steps listed in Table 4-3. For details on cables and connectors, see Chapter 2. CAUTION: Do not look into the end of any fiber optic cable.
High Power Wideband Radio Head (WRH-V) Field Replaceable Units Table 4-4 PSU Replacement Procedure Step Action 1 Loosen all four locking screws on front of cabinet 2 Open WRH-V door and secure 3 Disconnect main power plug from PSU(Location 1 shown in Figure 4-1) 4 Disconnect power cable bundle from PSU(Location 2 shown in Figure 4-1) 5 Loosen but do not remove screws securing PSU using a 5mm Allen key and remove PSU (Location 3 shown in Figure 4-1) 6 On new AC power supply, if used, set input
Remote Control Unit (RCU) High Power Wideband Radio Head (WRH-V) .
High Power Wideband Radio Head (WRH-V) Return For Service Procedures RCU for Radio Communication The RCU antenna for a radio modem is connected to the BS antenna via the uplink DC, provided the RCU and the WRH-V operate in the same cell system. Otherwise, the modem must have a separate antenna. Data is transferred between the WRH-V and the RCU via the P130 modem port on the RCI or FON.
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Chapter 5 Specifications Introduction This chapter provides specifications for the WRH-V.
Introduction High Power Wideband Radio Head (WRH-V) Table 5-1 WRH-V Specifications (Continued) Downlink, Spurious and Emissions level -13 dBm/1 MHz (FCC) -36 dBm (below 1 GHz, per ETSI EN 300 609-4) -30 dBm (above 1 GHz, per ETSI EN 300 609-4) Downlink power +43 dBm RMS (20 Watts) (for FCC - UMTS) +40 dBm RMS (10 Watts) (for ETSI - GMS/EDGE) Noise figure excluding fiber optic link 4 dB Fiber-Optic Link Budget 10 dBo Receiver input port return loss 14 dB Power supply voltage 115/230 VAC 21-60 VD
High Power Wideband Radio Head (WRH-V) Introduction Table 5-1 WRH-V Specifications (Continued) Wavelength TX: DFB 1310 or 1550 nm RX: 1250 – 1600 nm Transmit Max continuous RF input Optical output power, two levels RF attenuation settable by SW in 1dB steps +36dBm +3 or 0dBm 0-20dB Receive Max optic power input RF attenuation settable by SW in 1dB steps Alarm threshold level, settable warning Alarm threshold level, settable error +5dBm 4-24dB 0-40dBm 0-40dBm 044-05251 Rev A 5-3
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Appendix A Block Diagrams Introduction This appendix describes the main signals paths for the WRH. Non-Diversity Figure A-2 shows the non-diversity block diagram configuration of the WRH-V. The WRH-V is always fed by a BTS via either a BMU or an OCM. The TX signal from the BTS is converted to an optical signal in a BMU or OCM and fed to the WRH-V via a fiber optic cable. The optical signal is then received by the FON and converted to an RF signal.
Diversity High Power Wideband Radio Head (WRH-V) Diversity Figure A-2 illustrates the diversity block diagram configuration of the WRH-V. With diversity installed, there are two paths on the UL instead of one. This requires an additional FON for the added receive path signal. Signal flow is identical to the non-diversity version with the MCPA on the DL and LNAs on the UL providing the additional amplification out of and into the WBA.
Powerwave Installation and Service Manual Corporate Headquarters Powerwave Technologies, Inc. 1801 East St. Andrew Place Santa Ana, CA 92705 USA Tel: 714 -466-1000 Fax: 714-466 -5800 www.powerwave.com Main European Office Knarrarnäsgatan 7, 8tr SE-164 40 Kista Sweden Tel: +46 8 540 822 00 Fax: +46 8 540 823 40 Main Asia - Pacific Office 23 F Tai Yau Building 181 Johnston Road Wanchai, Hong Kong Tel: +852 2512 6123 Fax: +852 2575 4860 ©Copyright 2007, Powerwave Technologies, Inc. All Rights reserved.
