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Installation and Service Manual

044-05251 Rev A

March 2007

Wideband Radio Head (WRH)

Summary of content (55 pages)

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Wideband Radio Head (WRH) Installation and Service Manual 044-05251 Rev A March 2007
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© 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 the documentation and equipment, including but not limited to component substitution and circuitry changes. Changes that impact this document may subsequently be incorporated in a later revision of this document.
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Wideband Radio Head Revision Record Revision Record Revision Letter Date of Change Reason for Change 3A August 2005 Original VD203 66 A March 2007 Document number changed to 044-05251 and manual updated 044-05251 Rev A i
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This Page Intentionally Left Blank ii 044-05251 Rev A
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Table of Contents Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Chapter 1 - Product Description Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents Wideband Radio Head Chapter 3 - Installation Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 Site Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Wideband Radio Head List of Figures List of Figures 1-1 Powerwave Wideband Radio Head (WRH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 1-2 CU PCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 1-3 DIA PCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 1-4 LNA . . . . .
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List of Tables Wideband Radio Head 3-1 3-2 3-3 3-4 Cable Connection Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5 Main Power Breakdown Relay Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7 PSU Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9 Initial Startup Procedure . . . . . . . . . . . . . . .
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Wideband Radio Head 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 CHE Channel Amplif
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Abbreviations NEMA Wideband Radio Head 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 Remote Control Interface RCU Remote Control Unit
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Chapter 1 Product Description Introduction This manual contains information and procedures for installation, operation, and maintenance of the Wideband Radio Head (WRH). 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.
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Safety Wideband Radio Head • 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.
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Wideband Radio Head Overview Overview Figure 1-1 Powerwave Wideband Radio Head (WRH) Powerwave WRHs work as bi-directional on-frequency amplifiers used to fill out uncovered areas in wireless mobile systems such as base station fringe areas, tunnels, convention centers, airports and business 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.
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Overview Wideband Radio Head Chassis Design The WRH 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 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 or an independent WRH unit.
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Wideband Radio Head Overview Figure 1-2 CU PCBA Distribution PCBA (DIA) The DIA is the core distribution PCBA on which all other PCBAs and units connect to in the cabinet with the exception of the PA. A shielded metal frame on the DIA provides the mounting location for the CU, ALI and RCIs, if used.
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Overview Wideband Radio Head Fiber Optic Unit (FOU) The FOU is a metal plate mounted on top of the cover plate in the upper part of the WRH. The FON and fiber optic connectors are mounted on the FOU. It can also be configured with combiners, splitters, and 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.
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Wideband Radio Head Overview Sub Unit Locations WRH LNA - UL 1 WBA DL/UL LNA - DL 2 3 PA DL WBA DL/UL 4 PA DL 5 6 7 8 WBA DL/UL PA DL WBA DL/UL PA DL FON DPX DPX FOU ALI/RCI FON FOU CU PSU PSU (RCU) (RCU) Figure 1-6 Standard WRH Sub Unit Locations For single wideband operation the cabinet is equipped with a WBA in position 1 for both DL and UL paths and an associated PA in position 2 for DL signal amplification.
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Overview Wideband Radio Head LNA - UL LNA - DL 1 2 3 WBA DL/UL PA DL BA DL 4 5 6 7 WBA DL/UL PA DL BA DL FON DPX FON DPX FOU ALI/RCI 8 FOU ALI/RCI CU CU PSU PSU (RCU) (RCU) Figure 1-7 Standard WRH with Booster Option Sub Unit Locations WRH-V The WRH-V has a configuration similar to the standard WRH with the exception of a the MCPA that boosts the output DL signal from the PA. The MCPA is located at positions 3 and 4 in the cabinet.
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Wideband Radio Head Overview Fiber Optic Distribution Networks Fiber optic networks are setup identically to data networks. WRHs are connected is a star configuration as illustrated in Figure 1-9. 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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Overview Wideband Radio Head This Page Intentionally Left Blank 1-10 044-05251 Rev A
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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 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 is ready for operation.
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PCBA Indicators Wideband Radio Head PCBA Indicators This following paragraphs describe the LED indicators on the main PCBAs inside the WRH. CU PCBA Figure 2-3 illustrates the location of the LEDs on the CU and Table 2-1 describes their indications. WLI DATA POWER BOOT FAULT OPER Figure 2-3 CU PCBA Indicators Table 2-1 CU PCBA LED Indicators LED Description WLI Wire Line Interface. A flashing green LED indicates the unit is receiving data over the subcarrier.
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Wideband Radio Head WRH-V PCBA Connections 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. Lights up for approximately 15 seconds after the mains is switched on. When steady, it indicates the unit is ready for operation. FAULT Red LED.
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WRH-V PCBA Connections Wideband Radio Head Table 2-3 WRH-V PCS Connections From To Cable Type Non-Diversity 800-15790-001 Diversity 800-15790-002 ANT M Duplexer M 1/4 super flex Used Used ANT D Duplexer D RG223 Not Used Used DuplexerM MCPA Out .141 conform Used Used DuplexerM LNA In RG223 Used Used DuplexerD LNA In RG223 Not Used Used M LNA Out WBA P2101 RG316 Used Used D LNA Out WBA P3101 RG316 Not Used Used MCPA IN WBA P1401 .
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Wideband Radio Head WRH PCBA Connections WRH PCBA Connections The tables in the following sections list the connections on the main PCBAs inside the standard WRH. DIA PCBA Figure 2-5 illustrates and Table 2-5 lists the connections on the DIA PCBA.
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WRH PCBA Connections Wideband Radio Head BA PCBA Table 2-6 lists the connections for the BA PCBA. Table 2-6 BA PCBA Connections Port Connected to P3 P5 on the PA/DL PCBA P4 HI on the service DPX DPX Table 2-7 lists the DPX connections. DPXs are located on the FOU in the upper part of the cabinet.
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Wideband Radio Head WRH PCBA Connections P117 Figure 2-7 FON Connector Locations Table 2-9 FON Connectors Port Description P101 SMA, electrical RF input port (to the optical TX port) P102 SMA, electrical RF output port (from the optical RX port) P103 SMA, electrical RF output port (15dB below the P102 port) RX DIN/APC, optical input port (to the P102 and P103 RF ports) TX DIN/APC, optical output port (from the P101 RF port) P104 Used only for development and debugging P105 4-pin male, door
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WRH PCBA Connections Wideband Radio Head 1. 115/230V 50/60Hz, 300W input max. 2. 21- 60V DC, 300W input max. The DIA provides most of the internal connection between the sub units and external ports. Connectors involved are also located on the DIA. Refer to Table 2-6 for descriptions of the connectors.
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Wideband Radio Head Software and Hardware Compatibility 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. Below, you will find a table of software currently available in combination with CU PCBA revisions.
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Software and Hardware Compatibility Wideband Radio Head This Page Intentionally Left Blank 2-10 044-05251 Rev A
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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.
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Mounting Wideband Radio Head A 411 Ø14 90 135 144 205 250 300 Figure 3-1 Mounting bracket Normally, the WRH 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.
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Wideband Radio Head Mounting Figure 3-3 illustrates the installation of the mounting bracket on a pole using two 5.7-inch (144mm) Ushaped clamps and a locking screw. 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.
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Connections Wideband Radio Head After installing the mounting bracket, hang the WRH on the upper supports, as illustrated in Figure 35. Tighten the upper and lower mounting screws to secure it into place using the 6mm hex socket wrench. Locking cylinders, used to prevent unauthorized removal of the repeater, can be inserted and locked with a key after the lower screws have been tightened.
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Wideband Radio Head Connections Fiber Optic and RF Connections Fiber optic and RF cable connections should be verified both internally and externally before powering up the equipment. This section illustrates the general internal connections of the WRH and WRH-V. Verify these connections with the as-built drawings and documents for your specific system configuration. Table 3-1 lists the steps for external connections to the WRH.
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Optional Connections Wideband Radio Head WRH-V Figure 3-7 illustrates the cables and connections for the WRH-V. Figure 3-7 WRH-V Cable Connections 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 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 to an OM-Online or OMS workstation.
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Wideband Radio Head Optional Connections P28 P33 1 2 1 16 1 V2 1 P36 S->M 1 16 P34 P14 LED P22 4 8 3 16 1 6 9 1 P28 DOO R P26 P3 1 16 15 9 b a 6 5 9 1 P4 16 c b a 1 P2 32 c b a P32 MODEM W6B 10 P31 PC P21 PSU 1 W5 1 5 AL LGON INN OVATION SWEDEN M105 R6 P24 1 LNA DOWN-LINK 6 V6 DC DPX 10 P33 ALARM AUX1 MS -20 dB P27 8 2 1 1 9 5 TEST -30 dB P25 1 6 P23 LNA UP-LINK DPX 16 15 1 P29 2 1 DC 16 P5 c b a 8 15 2 1 1 X0B 15 V1 16 P13 16 P6
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Optional Connections Wideband Radio Head P33 1 2 1 16 1 V2 1 P36 S->M X0A 16 P34 LED P22 4 6 1 P28 DOOR 15 P26 16 15 9 P27 1 P25 P29 2 1 1 5 1 P32 MODEM W6B 10 16 P4 1 P2 W5 1 LNA DOWN-LINK 6 V6 P31 PC 5 10 1 6 P33 ALARM 7 P21 PSU 5 ALLGON INNOVATION SWEDEN M105 R6 1 P24 32 c b a c b a 9 AUX1 8 16 15 1 6 9 TEST P3 1 b a 6 2 1 DPX -30 dB 16 P5 c b a 8 2 1 1 9 P23 L NA UP -LINK DC V1 P14 X0B 8 3 16 1 15 MS -20 dB 1 16 P13 16 P6
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Wideband Radio Head Commissioning Table 3-3 PSU Replacement Procedure Step Action 1 Disconnect main power 2 Remove the main power plug from the PSU ('1' in Figure 3-12) 3 Disconnect the power cable bundle connectors (2) on the PSU 4 Loosen the four fixing screws (3) using a 5mm Allen key and remove the PSU 6 Examine the removed PSU and identify the supply voltage for the WRH (13.5V or 27V) 7 Set the new PSU to the correct supply voltage by moving the jumper as illustrated on the PSU.
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Commissioning Wideband Radio Head Initial Startup Table 3-4 Initial Statup Procedure Step 3-10 Action 1 Turn the main power on 2 Check the Yellow LED on the power supply unit. It must be a steady on 3 Check the four CU PCBA LEDs. Refer to the CU PCBA section in Chapter 2 for the correct power up indications 4 Check the three ALI PCBA LEDs or the corresponding LEDs on the RCI PCBA. Refer to the ALI or RCI PCBA section in Chapter 2 for the correct power up indications.
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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.
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Troubleshooting Wideband Radio Head FON 2 3 4-2 WRH restart Mains breakdown CU External 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. The WRH will restart when the power is back and this alarm will be sent. Error The FON 10 Volt charger voltage is below limit. Suggested remedy: Replace the FON Ceasing The cause of the alarm has ceased.
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Wideband Radio Head Troubleshooting 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. The battery for the RAM on the CU PCBA has a voltage outside the normal 2.7 to 3.5 Volt. An alarm may be initiated at start-up if the WRH has been stored out of power for a long time.
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Troubleshooting 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 has tried to call as many times as stated in the alarm call settings. No connection was established. Warning No connection at alarm call. The WRH has tried to call as many times as stated in the alarm call settings. No connection was established.
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Wideband Radio Head 48 50 Battery backup fault Fiberoptical error Troubleshooting External FOT fiber optics Error If a battery backup unit alarm is connected to external alarm 2, then the operator can configure the WRH to display this alarm when the battery backup unit indicates alarm. Ceasing The cause of the alarm has ceased.
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Field Replaceable Units Wideband Radio Head Field Replaceable Units 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, proceed as described in the Table 4-3.
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Wideband Radio Head Return For Service Procedures WRH To replace a WRH, proceed as desribed in the Table 4-5. Table 4-5 WRH Replacement Procedure Step Action 1 Open WRH door and secure 2 Disconnect main power plug from PSU 3 Verify all cables connected to WRH are labeled before disconnecting, then disconnect all cables 4 Remove mounting screws from bottom legs of WRH and loosen mounting screws in top legs 5 Close and secure door WARNING: A fully loaded WRH can weigh 96lbs.
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Remote Control Unit (RCU) Wideband Radio Head 1 2 1 16 1 V2 P34 15 1 6 1 16 P5 P3 1 c b a 8 15 P26 16 b a 5 P27 1 P4 16 c b a 1 P2 32 c b a P31 PC P32 MODEM W6B 10 P21 PSU 1 1 5 ALLGON INNOVATION SWEDEN M105 R6 P24 1 LNA DOWN-LINK 6 V6 DC DPX 10 P33 ALARM AUX1 W5 2 1 9 5 MS -20 dB P25 P29 1 DPX 8 16 15 1 1 6 P23 LNA UP-LINK 9 TEST -30 dB 15 9 6 2 1 DC 2 1 M->S S->M LED P22 4 9 P28 DOOR V1 P14 X0B 8 3 16 1 16 P13 16 P6 c b a 1 X0
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Chapter 5 Specifications Introduction This chapter provides specifications for the different WRH product line. Table 5-1 WRH Specifications Generic Dimensions (W x H x D in inches) 17.5 x 21 x 7 (low cover) 17.5 x 21 x 11 (high cover) Weight Empty low cover Cabinet with a low cover Cabinet with a high cover Equipped cabinet or high cover w/extra heat sink element 13 lbs (6.0 kg) 50 lbs (22.5 kg) 96lbs (44.0 kg) 41 lbs (18.
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Introduction Wideband Radio Head Standard WRH (SMR / iDEN 800 / 900 MHz) Frequency band UL 806-824 MHz; 896-901 MHz Frequency band DL 851-869 MHz; 935-940 MHz Max absolute delay <300 ns Gain adjustment range (in 1 dB steps) 30dB Gain (max variation –25 to +55 °C) <2dB Maximum input power (non-destructive) +13dBm Return Loss 14dB AGC for UL and DL ≥30dB Noise figure including fiber optic node 4dB Standard WRH (900 / 1800 / 2100 MHz) Frequency band UL 890-915 MHz; 1710-1785 Mhz; 1920-1980
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Appendix A Block Diagrams Introduction This appendix describes the main signals paths for the WRH. Standard WRH Figure A-1 illustrates a single band WRH block diagram. The TX signal from the BTS is converted to an optical signal at a FON within a BMU or OCM and fed to the WRH via a fiber optic cable. The FON in the WRH converts the fiber optic signal back to RF. It also supervises the signaling and reports errors via the RCU connected to the CU. The RF signal enters the WBA at P1101.
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WRH-V Wideband Radio Head WRH-V Non-Diversity Figure A-2 illustrates 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 received by the FON and converted to an RF signal. The FON supervises the signaling and reports errors via the RCU connected to the CU.
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Wideband Radio Head WRH-V Diversity Figure A-3 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.
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WRH-V Wideband Radio Head This Page Intentionally Left Blank A-4 044-05251 Rev A
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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 Antennvägen 6 SE-187 80 Täby 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 March 2005, Powerwave Technologies, Inc. All Rights reserved.