Powerwave Technologies 5JS0114 AC/DC Radio Heads User Manual 044 05251 Nexus FT Rev C

Powerwave Technologies Inc AC/DC Radio Heads 044 05251 Nexus FT Rev C

Users Manual

044-05251 Rev C October 2009WIDEBAND RADIO HEADINSTALLA TION AND SERVICE MANUALWRHNEXUS FT
© 2009 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.This Powerwave product is designed to operate within the Normal Operating (typical operating) ranges or conditions specified in this document. Operation of this equipment beyond the specified ranges in this document may cause (1) spurious emissions that violate regulatory requirements; (2) the equipment to be automatically removed from service when maximum thresholds are exceeded; or (3) the equipment to not perform in accordance with its specifications. It is the Operator's responsibility to ensure this equipment is properly installed and operated within Powerwave operating specifications to obtain proper performance from the equipment and to comply with regulatory requirements.The rated output power of a Nexus FT is for multiple carriers. As long as the composite power does not exceed the rated power (20W for North America), derating is not required for multiple carriers. For situations where regulatory requirements require reduced interference to adjacent band users, the rating would have to be reduced by 3 dB. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device. Input power is rated at 115/230VAC, 50/60Hz, and should be protected based on the power and fuse specifications in Chapter 5 of this manual. Power strips should, at a minimum, conform to this requirement to prevent equipment dam-age and possible overload.Federal Communications Commission (FCC)This device complies with the technical standards governing mobile radio devices in accordance with FCC Rules. This device is intended to facilitate the reception and transmission of mobile radio devices in the cellular, PCS or other mobile services, and its operation by end users or others requires carrier consent under FCC rules. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to CRF47 part 15 of the FCC rules. This equipment is also certified to CRF47 part 22 (cellular), part 24 (PCS), part 27, and part 90 (iDEN800 and iDEN900) of the FCC Rules depending on the band of operation. Changes or modifications not expressly approved by Powerwave Technologies, Inc. for compliance could void the user’s authority to operate this equipment. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a com-mercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to cor-rect the interference at his own expense. Industry Canadian RequirementsAll Powerwave apparatus introduced in the Canadian market meet all requirements of the Canadian Interference-Caus-ing Equipment Regulations. The -20dB bandwidth at 1900 MHz band is 80 MHz. The -20dB bandwidth at 1900+G MHz band is 77.4 MHz. The -20dB bandwidth at the 700 MHz is 23.5 MHz. The -20dB bandwidth at the 700 MHz is 23.5 MHz. The output impedance of the unit referenced in this document is 50 Ohms. The -20dB bandwidth at IDEN 800MHz band is 26 MHz. The Manufacturer's rated output power of this equipment is for single carrier operation. For situations when multiple carrier signals are present, the rating would have to be reduced. For example, at IDEN 800MHz band, the rating would have to be reduced by 3.5 dB, especially where the output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device. The input signal is optical so input impedance requirements are not applicable.European RequirementsThe Powerwave Nexus FT apparatus introduced in EU markets are certified to ESTI EN 300 609-4 (GSM900 and DCS1800) and ESTI EN 301 908-11 (WCDMA).Powerwave Technologies Inc., 1801 East St. Andrew Place, CA 92705 Santa Ana, USA. Phone +1 714 466 1000 – Fax +1 714 466 5800 – Internet www.powerwave.com
044-05251 Rev C iWarnings, Cautions, and NotesWarnings, 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. You are in a situation that could cause bodily injury or death. Before you work on any equipment, be aware of the haz-ards involved with electrical and RF circuitry and be familiar with standard practices for preventing accidents.CAUTION: The caution symbol means the potential exists for equipment damage or loss of data.NOTE: Notes contain helpful suggestions or references to material not covered in the document.
Revision Record Nexus FTii 044-05251 Rev CRevision Record Revision Letter Date of Change Reason for ChangeRev A November 2007 Initial ReleaseRev B February 2008 Renamed product to Nexus FT, added new Chapter 1 - Product Safety, added text regarding FON maintenance to pages 3-8 and 4-6.Rev C November 2009 Upated content to include WMATA additional bands (PCS+G, CS700MHz)
044-05251 Rev C iiiPrefaceSafetyAny personnel involved in installation, operation, or service of units included in a Powerwave Distributed Antenna System (DAS) must understand and follow the points below.❑Powerwave Nexus FTs are designed to receive and amplify signals from one or more base stations and retransmit the signals to one or more mobile stations. And, also to act the other way round, that is to receive signals from one or more mobile stations, amplify and retransmit the signals to the base stations. Powerwave Nexus FT systems must be used exclusively for this purpose and nothing else.❑Units supplied from the mains must be connected to grounded outlets and in conformity with the local prescriptions. ❑For outdoor use, the power cord should meet at least IP65 encapsulation requirements. Do not turn the main power on until you are ready to commission the Nexus FT.❑Power supply units supplied from the mains contain dangerous voltage that can cause electric shock. Disconnect the mains prior to any work in such a unit. Local regulations are to be followed when servicing such units. Only authorized service personnel are allowed to service units while the mains are connected.❑When opened, the Nexus FT cover must be secured. Otherwise, the cover can be closed by the wind and cause your fingers getting pinched or your head being hit.❑When working on a Nexus FT on high ground, for instance on a mast or pole, be careful not to drop parts or the entire Nexus FT. Falling parts can cause serious personal injury.❑All RF transmitting units, including Nexus FTs, will generate radio signals and thereby give rise to electromagnetic fields that may be hazardous to the health of any person who is extensively exposed close to an antenna. ❑A lithium battery is permanently mounted on the CU and FON PCBAs. Due to the risk of explosion, this battery must only be removed from the board by a Powerwave authorized service technician.❑NiCd batteries are mounted on the FON PCBA. These batteries contain environmental poisonous substances. If replaced, the old batteries should be disposed of as stated in the local prescriptions. ❑The FON unit contains a Class 1M laser transmitter that emits 2—4 mW invisible laser radiation at 1550 nm during operation and is intended for a restricted location. Avoid direct exposure from a disconnected laser transmitter or fiber cord. For example, do not view directly with optical instruments (magnifiers) and do not view directly with non-attenuating optical instruments.❑The FON Unit has this label attached:❑Do not power up the FON unit if a fiber cable is not connected to the fiber output UL port, or if a fiber cable is connected to the port but disconnected at the other end.❑Never look at the end of a fiber cable. The 1310nm and 1550nm laser light is not visible. Always use an instrument, such as a power meter, to detect signaling.
Electrostatic Discharge (ESD) Nexus FTiv 044-05251 Rev CHuman Exposure to RF RadiationSafe distances must be kept when working around antennas. The following paragraphs describe the cautions to be aware of during the installation and maintenance of antenna systems and how to calculate safety distances needed for RF radiation at different antenna power and frequencies.AntennasTo be able to receive and transmit signals, a Nexus FT is connected to a donor antenna directed towards the base station and a service antenna directed towards the coverage area. A fiber optic cable from the base station might, however, be substituted for the donor antenna.Installation and Maintenance of Antenna SystemsInstallation and maintenance of all antenna systems must be performed with respect to the radiation exposure limits for public areas. The antenna radiation level is affected by Nexus FT output power, antenna gain, and transmission devices such as cables, connectors, splitters and feeders. Also have in mind the system minimum coupling loss, typically between 25dB and 35dB, is determined by a standard with the purpose to protect base stations from noise and other performance dropping effects.Radiation ExposureThe World Health Organization (WHO) and International Commission on Non-Ionising Radiation Protection (ICNIRP) have determined recommendations for radiation exposure. ICNIRP recommends not to exceed the following radiation power for public exposure:Frequency Radiation power800/900 MHz 4.5W/m²1800/1900 MHz 9.0W/m²2100 MHz 10.0W/m²For antennas larger than 20cm the maximum radiation power can be calculated by using the following formula:Electrostatic Discharge (ESD) ESD can severly damage essential parts of the equipment if not handled carefully. Parts on printed circuit board assemblies (PCBA) as well as other parts in the equipment are sensitive to ESD. Never touch the PCBA or uninsulated conductor surfaces unless absolutely necessary.If you must handle the PCBAs or uninsulated conductor surfaces, use ESD protective equipment or first touch the chassis with your hand. Never let your clothes touch PCBAs or uninsulated conductor surfaces and always store PCBAs in ESD-safe bags.S= P/(4πr2)S = Radiation power in W/m²P = Output power in Wr = Distance between antenna and human in meters
044-05311 Rev C vTable of ContentsSafety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiHuman Exposure to RF Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiiAntennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiiInstallation and Maintenance of Antenna Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiiRadiation Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiiElectrostatic Discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiiProduct Description Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1Chassis Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2Wideband Amplifier PCBA (WBA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Multi-Carrier Power Amplifier PCBA (MCPA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Distribution PCBA (DIA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Control Unit PCBA (CU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Low Noise Amplifier (LNA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Duplex Filter (DPX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4Fiber Optic Unit (FOU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4Fiber Optic Node (FON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4Power Supply Unit (PSU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4Remote Control Unit (RCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4Alarm Interface PCBA (ALI) and Remote Control Interface PCBA (RCI) . . . . . . . . . . . . 1-5Controls, Indicators and Connectors Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1Front Cover Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1Cabinet Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1PCBA Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2PCBA Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3Software and Hardware Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8Installation Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1Site Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1WRH Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4Main Power and Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4Fiber Optic and RF Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4WRH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Optional Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7External Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7Door Open Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7Main Power Breakdown Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-721-60 Volt DC PSU Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8Initial Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9Passive Intermodulation (PIM) Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
vi 044-05311 Rev CMaintenance Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1Clearing Alarm Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1Field Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6FON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6PSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7WRH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8Remote Control Unit (RCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8RCU for Radio Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9RCU for Telephone Line Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9Return For Service Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9Obtaining an RMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9Repackaging for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9Specifications Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1Appendix A, Block Diagrams Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1Non-Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
044-05311 Rev C viiList of Figures1-1 PowerwaveWRH Radio Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-2 DIA PCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-31-3 CU PCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-31-4 LNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-41-5 FOU in Nexus FT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-41-6 Nexus FT Sub Unit Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-51-7 700 MHz (CS, PCS) Sub Unit Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-51-8 Fiber Optic Star Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-61-9 Multi-operator System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-62-1 External Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12-2 Cabinet Internal Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12-3 CU PCBA Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22-4 FON LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32-5 DIA PCBA Connectors and Testpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42-6 FON Connector Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-62-7 PSU Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-73-1 Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23-2 Mounting Bracket Installation on Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23-3 Attaching the Bracket to a Pole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33-4 Attaching the Bracket to a Mast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33-5 Attaching the WRH to the Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-43-6 WRH Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-53-7 WRH Cable Connections for 700 MHz unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-63-8 External Alarm Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-73-9 Main Power Breakdown Relay Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-83-10 Connecting a PC for Local Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-93-11 PIM testing two carriers and one WRH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-103-12 PIM testing one carrier over each of two WRHs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-104-1 PSU Cable, Switch and Lable locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-74-2 RCU in the WRH cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8A-1 WRH Block Diagram - Non-Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1A-2 WRH Block Diagram - Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
vii 044-05251 Rev CList of Tables2-1 CU PCBA LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22-2 FON LED Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32-3 WRH Base Unit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42-4 WRH Cover Unit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42-5 DIA PCBA Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52-6 LNALNA Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-62-7 FON Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-62-8 Hardware / Software Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-83-1 Main Power Breakdown Relay Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-83-2 Initial Statup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-93-3 PIM Testing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-114-1 Recommended Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14-2 Alarm Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14-3 FON Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-64-4 PSU Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-74-5 WRH Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
044-05251 Rev C 1-1Chapter 1 Product DescriptionIntroductionThis manual contains information and procedures for installation, operation, and maintenance of The Nexus FT High Power Wideband Radio Head - in this manual, referred to as WRH. The manual is organized into chapters as follows:Scope of ManualThis manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the equipment described and is current as of the printing date. Changes which occur after the printing date may be incorporated by a complete manual revision or alternatively as additions.Overview Figure 1-1 PowerwaveWRH Radio Head Powerwave Nexus FTs 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 theWRHare made with N-type or 7/16" male connectors.❑Chapter 1- Product Description❑Chapter 2- Controls and Indicators❑Chapter 3- Installation❑Chapter 4- Maintenance❑Chapter 5- Specifications
Overview Nexus FT1-2 044-05251 Rev CNexus FTs 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 Nexus FTs 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.Nexus FTs 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 Nexus FTs available.TheWRHis 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 DesignTheWRH 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 theWRH 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 independentWRH unit. AWRH 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 Nexus FT, 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.Sub Unit OverviewA number of amplifier PCBAs are individually shielded and located under a metal cover inside the Nexus FT. This cover can be opened outward for access. These amplifier PCBAs are of different types depending on the supported system. All of the Nexus FTs are built up with a number of sub units which are described in the following sections.Wideband Amplifier PCBA (WBA)Nexus FTs 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.
Nexus FT Overview044-05251 Rev C 1-3Distribution 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 PCBAControl Unit PCBA (CU)Figure 1-3 shows the CU, which is the core microprocessor controller in the WRH 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.Figure 1-3 CU PCBALow 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. The other output, OUT LOW, is an expansion output for an additional LNA if the WRH is equipped with a unit in the cover part of the chassis. ALLGON INNOVATIONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212V6BP27P26P23XOAXOBP28P4 P5 P6 P2 P3 P31 P21 P35 P33P32P11 P12 P13 V1P14 P22P29P34 V2P36V6GNDP25P24
Overview Nexus FT1-4 044-05251 Rev CThe gain to this connector is +2dB. The +7V input is used for +7V supply from the DIA PCBA and the ATT connection is for the control signal for a controllable attenuator in the LNA.Figure 1-4 LNADuplex Filter (DPX)DPXs are located on the metal cover sheet in the upper part of the cabinet.Fiber Optic Unit (FOU)The FOU is a metal plate mounted on top of the cover plate in the upper part of the Nexus FT. 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 Nexus FTFiber 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. 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 chargerThere 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 Nexus FT.Remote Control Unit (RCU)The RCU is an optional communication unit for remote control of Nexus FTs via PSTN or RF modems. RCU types and details are described in Chapter 4.FONDPX
Nexus FT Overview044-05251 Rev C 1-5Alarm Interface PCBA (ALI) and Remote Control Interface PCBA (RCI)The ALI handles alarms and alarm communication. It is replaced 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.Sub Unit LocationsThe MCPA is located in the cabinet at the positions indicated in Figure 1-6. A WRH is equipped for one band in the cabinet and, if required, an additional band in a high cover. A block diagram is located in Appendix A. Figure 1-6 Nexus FT Sub Unit LocationsFigure 1-7 700 MHz (CS, PCS) Sub Unit Locations15501310MCPAs
Overview Nexus FT1-6 044-05251 Rev CFiber Optic Distribution NetworksFiber optic networks are setup identically to data networks. Nexus FTs 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 Nexus FTs. By using WDMs and Optical Splitters (OSPs) in the Nexus FTs, the distribution net can be built up with a combination of star and daisy-chain connections using double or single fiber.Figure 1-8 Fiber Optic Star ConfigurationMulti-Operator ConfigurationsMulti-operator systems require the use of Point of Interconnect (POI) units and OCMs as illustrated in Figure 1-8. In this simple example, two operators have two sectors each. Each sector is connected to a POI and then to a RCM. The RCM is interconnected with an OCM via coaxial cables. The combined DL and UL signals are converted to optical signals in the OCM and then distributed to the Nexus FTs-V.Figure 1-9 Multi-operator SystemBMU WRHWRHWRHWRHBTS RF Operator 1 Operator 2 Sector 1 Sector 1 Sector 2 Sector 2 OCM OCM-POI BTS-POI BTS-POIBTS-POIBTS-POIOCM-POI
044-05251 Rev C 2-1Chapter 2 Controls, Indicators and Connectors IntroductionThis chapter contains descriptions of the controls, indicators and connectors for the WRH. Front Cover IndicatorsFigure 2-1 External IndicatorsTwo 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 is ready for operation. The red alarm LED indicates a system error alarm when flashing and a critical alarm when steady.Cabinet IndicatorsFigure 2-2 Cabinet Internal IndicatorsRedAmberMSDPXANTTESTDC-30 dB-20 dB MSDPXANTTESTDC-30 dB-20 dBALLGON IN NOVAT IONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODE MAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212POWER SUPPLY UNITCUALIorRCISVOPERFAULTPOWER10V ALARMPOWERBOOTFAULTOPERWLI / R2R DATA
PCBA Indicators Nexus FT2-2 044-05251 Rev CFigure 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 IndicatorsThis following paragraphs describe the LED indicators on the main PCBAs inside the WRH.CU PCBAFigure 2-3 shows the location of the LEDs on the CU and Table 2-1 lists their indications.Figure 2-3 CU PCBA IndicatorsTable 2-1 CU PCBA LED IndicatorsLED DescriptionWLI Wire Link Interface. A flashing green LED indicates the unit is receiving data over the subcarrier. A steady green LED indicates: the unit is currently not receiving any data, is currently not a control station or there is no other node in the networkDATA Blue LED indicating data transmission in the W-netPOWER Yellow LED indicating present power and remains steady after power is switched onBOOT Steady red LED when the CU boots (10 – 15 seconds after main power is switched on), then flashing red (5 – 10 seconds), then off if no error is detected. If an error is detected LED will stay onFAULT Flashing red LED for 15 – 20 seconds after main power is switched on. Flashes for less serious alarms (Error) and is on solid for fatal alarms (Critical)OPER Steady green LED indicates WRH is ready for operationWARNING: A lithium battery is permanently mounted on the CU PCBA. Due to risk of explosion, this battery must not be removed. In case of battery malfunction, replace the CU PCB.WLI DATA POWER BOOT FAULT OPER
Nexus FT PCBA Connections044-05251 Rev C 2-3FON PCBAThe FON is shown in Figure 2-4 and the LED indicators are listed in Table 2-2.Figure 2-4 FON LED IndicatorsTable 2-2 FON LED IndicationsPCBA ConnectionsThe following tables list the connections from the main PCBAs to replaceable units inside the WRH. Table 2-3 lists the connections for a WRH configured for PCS both with and without diversity and Table 2-4 lists the connections for Cellular with and without diversity.LED DescriptionFLI 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 sub-carrier, but is not carrying any dataOPER Green LED. Lights up for approximately 5 seconds after the power is switched on. The LED is dark during the boot process and when it is steadily lit again, it indicates the unit is ready for operationFAULT Red LED. Flashes for 15 – 20 seconds after the mains is switched on. Will flash for less serious alarms and be steady for fatal alarmsPOWER Yellow LED. Indicates power is presentBOOT Red LED. Steady LED when the control unit boots up (10 – 15 seconds after the mains is switched on). Next enters a flashing state for 5 – 10 seconds. If no error is detected, the LED turns off. If an error occurs, the LED remains onWLI Green LED. Wire Link Interface. Flashing LED indicates unit is receiving data over the subcarrier. A steady LED indicates one of the following: The unit is not currently receiving any data, the unit is not currently a control station or there is no other node in the networkDATA Blue LED. Indicates data transmission in the W-netBATT Green LED. Steady LED indicates battery pack is currently used as power sourceCHARGE Yellow LED. Steady LED indicates battery chargingP117
PCBA Connections Nexus FT2-4 044-05251 Rev CTable 2-3 WRH Base Unit ConnectionsTable 2-3 applies to cables connected to FRUs (PSU and 2 FON) labeled Main FON and Diversity FON.Table 2-4 WRH Cover Unit ConnectionsDIA PCBAFigure 2-5 shows and Table 2-5 lists the connections on the DIA PCBA. The DIA provides most of the internal connection between the sub units and external ports. Connectors involved are also located on the DIA. Figure 2-5 DIA PCBA Connectors and TestpointsThe External Alarm Port P33 is used for external alarm sensors and alarm equipment. The four alarm inputs are low-level inputs with common ground (AIC). Use an insulated switch or relay to initiate alarms (open switches in normal operating mode, closed switches cause alarm). The alarm switch connection can be toggled between active open and active closed. The alarm input voltage ratings, related to ground (AIC), are: Vinmax= 5.5V, Vinmin= –0.5V.The four alarm inputs are connected to the following pins:Pin 14 AI1 External alarm input 1 - EAL1Pin 15 AI2 External alarm input 2 - EAL2Pin 7 AI3 External alarm input 3 - EAL3Pin 8 AI4 External alarm input 4 - EAL4From To Cable Number Non-Diversity DiversityWBA P2401 M FON P101 VE007 06/3 Used UsedWBA P3401 D FON P101 700-16639-001 Not Used UsedWBA P1101 M FON P102 VE007 20/2 Used UsedPSU DIA P21, P35 VE007 98/1 Used UsedM FON P108 DIA P29 VE007 66/1 Used UsedD FON P108 M FON P116 VE007 66/1 Not Used UsedM FON P111 DIA P36 VE008 05/1 Used UsedD FON P111 DIA P112 VE008 05/1 Not Used UsedFrom To Cable Number Non-Diversity DiversityCover DIA P36 M FON P112 VE008 05/1 Used Not UsedCover DIA P36 D FON P112 VE008 05/1 Not Used UsedPSU DIA P21, P35 VE007 98/1 Used UsedDX DL C M FON P102 700-14508-401 Used UsedDX UL1 C (M) M FON P101 700-14508-401 Used UsedDX UL2 C (D) M FON P101 VE007 52/2 Not Used UsedALLGON INNO VATIONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23UL LNA ATT NP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6UL LNA ATTNLEDP2212V6BP26XOAXOBP28P4 P5 P6 P2 P3 P31 P21 P35 P33P32P11 P12 P13 V1P14 P22P29P34 V2P36V6GNDP25P24P27P2312P37DIV 12P38DIVP38ALLGON INNO VATIONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23UL LNA ATT NP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6UL LNA ATTNLEDP2212V6BP26XOAXOBP28P4 P5 P6 P2 P3 P31 P21 P35 P33P32P11 P12 P13 V1P14 P22P29P34 V2P36V6GNDP25P24P27P2312P37DIV 12P38DIVP38
Nexus FT PCBA Connections044-05251 Rev C 2-5Pin 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. Pin 12 and 4 AO3 and AO4 Open at alarm state, otherwise closed.Table 2-5 DIA PCBA Connections Port Connected toP2 CU PCBAP3, 5, 6 Not UsedP4 ALI or RCI PCBAP11 - 14 Channel PCBA positions 1 through 4P21 PSU, connector 1P22 LED PCBA in coverP23 LNA/UL (for RH770020/101 ONLY, P23 connects to LNA/UL1)P24 LNA/DLP25 Expansion output port to cover circuitry. Only in cabinetsP26 Expansion input port to cover circuitry. Used in equipped high coversP27 Auxiliary Port (8-pin male) - Pins 2 and 3 must always be interconnected to provide the CU and ALI/RCI PCBAs with voltage. If there is no cable connected, pins 2 and 3 must be interconnected with a jumperP28 Door switch port - Normally, alarm input AI4 is used for door opening alarm EAL4 which is arranged using an optional door switch. Signal AI4 and AIC are thus available also in the P28 connector, to which the door switch is connected. The EAL4 door switch alarm is activated 10 – 30 seconds after the cover has been openedP29 Power to FONP31 RS-232 PC Port (9-pin D-sub female) - Used for local PC communicationP32 RS-232 Modem port (9-pin D-sub male)P33 External Alarm Port (15-pin D-sub female) - Used for external alarm sensors and alarm equipment. Four alarm inputs, EAL1 – EAL4, and two alarm outputsP34 Not usedP35 PSU, connector 2P36 IP or R2R connection between CU and FONP37 LNA Diversity DLP38 LNA Diversity UL (for RH770020/101 ONLY, P38 connects to LNA/UL2)
PCBA Connections Nexus FT2-6 044-05251 Rev CLNAFigure 2-6 shows the front of the LNA and Table 2-6 lists the connections.Table 2-6 LNALNA ConnectionsFigure 2-6 NOTE: For RH770020/101 only, the OUT 1 on the LNA for UL 1 connects to P2101 and Out 1 for LNA on UL 2 connects to P3101.FONFigure 2-7 shows the locations of the connectors on the FON and Table 2-7 lists the port numbers, connector types, and port usage. Figure 2-7 FON Connector LocationsLNA Port Connected toOUT LOW IN on the LNA/UL in the cover, if equippedIN LO on the service DPX duplex filterATT +7V P23 on the DIA PCBAOUT1 P2101 on the WBA PCBAOUT2 Diversity LNA connected to P3101 on WBA PCBATable 2-7 FON Connectors Port DescriptionP101 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 debuggingP105 4-pin male, door LED indicators. Used for the yellow and red LED indicators located on the front cabinet doorP106 9-pin D-sub female, RS-232 used for local PC communicationP108/116 6-pin male, parallel connected power ports for the FONP109 7-pin male, used for external alarm sensorsP117
Nexus FT PCBA Connections044-05251 Rev C 2-7PSUThe PSU is located in the bottom middle of the cabinet or in an equipped high cover. The PSU has all the voltages required for the WRH. It has capacity for the radio circuitry, fiber optics, and modem. Multi-band WRHs always require a second PSU. There are two PSU types with different input voltages:1. 115/230V 50/60Hz, 300W input max.2. 21- 60V DC, 300W input max.The PSU is connected to the DIA at P21 and P35, and voltage is tested at V1 (test point for P35) and V2 (test point for P21).Figure 2-8 PSU LocationP110 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. The opposite state, with the jumper between the tip and center pins, terminates(T) the W-linkP111/112 5-pin male, WLI ports used for interconnecting nodes in WLI-nets (IP or R2R networks). They are identical and connected in parallel. One of the connectors is intended to be used from the previous node and the other connector to the next node in the network. Either can be used for the first and the last unit in the net chainP113 2-pin male, used for the on-PCBA backup batteriesP114 Backup power output jumper, sets the backup power output state. The OFF state has jumper between the center and left pins. This jumper has to be in the OFF state when used in an OCM. Otherwise, it shall be in the ON stateP115 3-pin male, intended for future useP117 SMA, electrical RF output port (15dB below the P101 port)P130 34-pin, 2-line male, RCU port used for connecting an RCU. The connector contains both the modem connection and RCU power supplyTable 2-7 FON Connectors (Continued)Port DescriptionMSDPXANTTESTDC-30 dB-20 dBPOWER SUPPLY UNITALLGON INNOVATIONSWE DEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212P21P35V1V2 ACPowerMSDPXANTTESTDC-30 dB-20 dBMSDPXANTTESTDC-30 dB-20 dBPOWER SUPPLY UNITPOWER SUPPLY UNITALLGON INNOVATIONSWE DEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212ALLGON INNOVATIONSWE DEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212P21P35V1V2 ACPower
Software and Hardware Compatibility Nexus FT2-8 044-05251 Rev CSoftware and Hardware CompatibilityThere 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.Table 2-8 Hardware / Software CompatibilityThis information is accurate as of 10/16/2009. As new versions of hardware and software are released without prior notice, contact your Powerwave sales representative for information on the latest revision.For detailed information, refer to the release notes for the CU software to be downloaded (normally found in the readme.txt file provided with the program files).CU PCBA part number CU Software part number500-13817-001 (previously K103/3) D631-18072-001D631-18072-003D631-18072-004D631-18072-005
044-05251 Rev C 3-1Chapter 3 InstallationIntroductionThis chapter contains unpacking, inspection and installation instructions for installing and powering up the WRH.Site SurveyPowerwave 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. Cabinet dimensions and weights are listed in Chapter 5.Unpacking and InspectionThis equipment has been operated, tested, and calibrated at the factory. Carefully open containers to remove equipment. Retain all packing material that can be reassembled in the event unit must be returned to the factory. Perform the following steps:❑ Visually inspect equipment for damage that may have occurred during shipment. If possible, in the presence of the delivery person.❑ Check for evidence of water damage, bent or warped chassis, loose screws or nuts, or extraneous packing material in connectors.If equipment is damaged, file a claim with the carrier once the extent of any damage is assessed.If equipment must be returned to factory, please contact factory for a Return Material Authorization (RMA), see Chapter 4.WRH LocationThe WRH is designed with a weather proof outdoor cabinet that can be mounted without any kind of shelter from rain, snow or hail. The same unit can be installed indoors. A preferable site for the WRH is a location free of obstructions, easily accessible and allows for proper air-flow and ventilation.If a WRH is installed outdoors and can be exposed to direct sunshine, it is essential that air circulates around the WRH with no obstacles. The operating temperature must not exceed 131°F (55°C). A shelter can be used to shade the WRH from direct sunshine.Never open a WRH when rain, snow, hail, high humidity or high winds are present unless some kind of temporary shelter can be erected.MountingThe WRH is easy to mount using the provided mounting bracket, which has 9/16-inch (14mm) holes for 3/8-inch (10mm) or 1/2-inch (12mm) fixing screws. Clamps with C-C measurements of 3.5-inch (90mm), 5.3-inch (135mm), 5.7-inch (144mm), 8.1-inch (205mm), 9.8-inch (250mm), and 11.8-inch (300mm) can be used as well. The vertical C-C measurement for these is 16.2-inch (411mm). There is a 9/16-inch (14mm) single hole in the middle of the mounting bracket, marked ‘A’ in the figure, which is intended for a locking screw to lock the bracket into place.
Mounting Nexus FT3-2 044-05251 Rev CFigure 3-1 Mounting BracketNormally, 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.Figure 3-2 Mounting Bracket Installation on Wall90135144205250300Ø14A411
Nexus FT Mounting044-05251 Rev C 3-3Figure 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.Figure 3-3 Attaching the Bracket to a PoleFigure 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
Connections Nexus FT3-4 044-05251 Rev CAfter installing the mounting bracket, hang the WRH 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. 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. 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 to the BracketConnectionsThis section describes general examples of how to connect the input and output ports on the WRH. Main Power and GroundingLocal regulations need to be followed for the main power connection. WRHs are approved in accordance with EN and UL/cUL regulations. This is, however, only valid if a classified power cord is used. For the Nexus FTto meet these regulations you must select one of the following classified and approved cord types:❑ EN – H 05 W5 - F HMR❑ UL – AWM Style 2587❑ CSA– AWM 1 A/B 11 A/BFor outdoor use, the power cord should meet at least IP65 encapsulation requirements. Do not turn the main power on until you are ready to commission the WRH.Fiber Optic and RF ConnectionsFiber 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. Verify these connections with the as-built drawings and documents for your specific system configuration. Table 3-1 lists the steps to add the external connections to the WRH.WARNING: For WRHs supplied from the main power source, the main outlet must be grounded.
Nexus FT Connections044-05251 Rev C 3-5Table 3-1 Cable Connection ProcedureWRHFigure 3-6 illustrates the cables and connections for the WRH.Figure 3-6 WRH Cable ConnectionsStep Action1Connect service antenna coaxial cable to left-outside DIN connection on cabinet2Connect fiber optic cable from OCM or BMU to fiber optic cable demark on FOU3Connect station ground to appropriate ground point in cabinet4Mount main power plug to main power cord and insert into PSU15501310Power connectionFiber Optic ConnectionService Antenna Connection Ground Points
Connections Nexus FT3-6 044-05251 Rev CFigure 3-7 WRH Cable Connections for 700 MHz unitFiber Optic ConnectionService Antenna Connection Ground PointsPower connection
Nexus FT Optional Connections044-05251 Rev C 3-7Optional ConnectionsAlarmsAlarm 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 through OM-Online. Alarms can also be handled by the FON. Alarms are configured through OM-Online.External AlarmBurglary, fire or other external alarms can be handled by the WRH. External alarm sensors and alarm signals are connected to the P33 alarm port located to the left in the cabinet, as illustrated in Figure 3-7. The P33 alarm port is described in Chapter 2. The cable for this installation is taken through a strain relief bushing at the bottom of the WRH cabinet.Door Open AlarmA door open alarm can be configured and installed in the WRH. This is arranged with a door switch connected to pin 8 (AI4) on P28, as described in chapter 2. The location of P28 is shown in Figure 3-7.Figure 3-8 External Alarm ConnectionMain Power Breakdown RelayTo be able to distinguish PSU faults from power failures, a main power breakdown relay can be used. This relay is not included in the WRH. It has to be mounted outside the WRH cabinet. The relay intended for this purpose must fulfil the following specifications:Closing time: Max. 30 millisecondsInsulation coil/contact: Min. 4KVA main power connected relay must also be in compliance with valid local regulations. To install a main power breakdown relay connection, follow the steps listed in Table 3-2.MSDPXANTTESTDC-30 dB-20 dBMSDPXANTTESTDC-30 dB-20 dBPOWER SUPPLY UNITALLGON INNOVATIONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212P28 P33
Commissioning Nexus FT3-8 044-05251 Rev CTable 3-2 Main Power Breakdown Relay ConnectionFigure 3-9 Main Power Breakdown Relay Connection21-60 Volt DC PSU InstallationSee the Field Replaceable Units, PSU section in Chapter 4 for details on replacing a 115/230 VAC PSU with a 21 to 60 Volt DC PSU.CommissioningBefore proceeding, carefully read the Safety section and check all connections made during the installation. To fulfill the IP65 weather protective requirements, ensure cable strain relief bushings are properly tightened. Also, ensure gaskets at cable inlets and on the cabinet are properly fitted and not damaged.Step Action1Connect 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 shorted2Connect relay coil. Coil must be supplied from same fuse as WRH3After commissioning, select Mains Breakdown in alarm configuration window in OM-Online. For details on setting alarm configuration see OM-Online User Manual.MSDPXANTTESTDC-30 dB-20 dBPOWER SUPPLY UNITALLGON INNOVATIONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MOD EMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212P33:AICP33:AI1
Nexus FT Commissioning044-05251 Rev C 3-9A WRH 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.Figure 3-10 Connecting a PC for Local AccessInitial StartupTo complete the inital start-up of the WRH, follow the steps listed in Table 3-3.Table 3-3 Initial Statup ProcedureStep Action1Turn main power on2Check Yellow LED on power supply unit. Steadily lit = functioning correctly3Check the four CU PCBA LEDs. Refer to CU PCBA section in Chapter 2 for correct power up indications4Check the three ALI PCBA LEDs or corresponding LEDs on RCI PCBA. Refer to ALI or RCI PCBA section in Chapter 2 for correct power up indicationsNOTE When optimizing WRHs, offset the UL gain 20dB less than the DL gain as a starting point.Always monitor the UL pass bands for noise levels and/or IMDs when optimizing and commissioning.For CDMA carriers, ensure that the UL pass band is well above the noise floor.MSDPXANTTESTDC-30 dB-20 dBPOWER SUPPLY UNITALLGON I NNOVATIONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212 P31
Commissioning Nexus FT3-10 044-05251 Rev CPassive Intermodulation (PIM) TestingPIM is the non-linear effect of passive RF components in a desired RF transmission band. As higher per-carrier transmit power levels are applied to duplexed passive RF networks, PIM becomes an increasingly significant factor in potential receiver desensitization. A PIM tester may be used on the RF network prior to turn-on and commissioning of the unit, but if a PIM tester is not available, the following may be used:The following equipment is required to test for PIM:❑ Anritsu Site eMaster or equivilent RF Spectrum Analyzer❑ Agilent ESG4432B or equivilent Multi-Signal Generator (or commissioned BTS)❑ Guarateed/calibrated PIM load capable of handling 20W composite power❑ Low-PIM RF cable adaptors such as N-N female, Din male to N femaile, DIN-DIN, SMA-SMA female, and N male to SMA female❑ Installed and operational WRH unit❑ Installed passive RF network under test❑ Torque wrenches for DIN and N connectorsTwo different types of setup are available, depeding on equipment availability and testing methods. Figure 3-10 shows PIM testing with two carriers over one WRH, and Figure 3-11 shows PIM testing with one carrier over each of two WRHs.Figure 3-11 PIM testing two carriers and one WRHFigure 3-12 PIM testing one carrier over each of two WRHsThe following PIM test uses the receive sensitivity and gain of the WRH under test to verify that the receive path is free of PIM noise. For PIM to be a problem at a particular site, TX signals must exist such that their products fall into the RX band using the formulae:3rd order product = (2 * f1) - f2and3rd order product = (2 * f2) - f1WRH-V E4432B SIG Gen (or BTS) E4432B SIG Gen (or BTS) Load / DAS Σ OCM E4402B Spec. An. WRH-V Under Test E4432B Sig Gen / BTS 1 Load / DAS OCM E4402B Spec. An. WRH-V Hybrid OCM E4432B Sig Gen / BTS 2
Nexus FT Commissioning044-05251 Rev C 3-11Where f1 and f2 are two TX signals entering a WRH. 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 ProcedureStep Action1 If BTS signals are present, continue with step 2. Otherwise, connect two signal generators to OCM and set frequencies such that products are in relevent receive band (see equations above)2 Set WRH UL gain to 60 dB and DL gain such that desired per carrier power is presented at output port3 Set Spectrum Analyzer to 100 kHz resolution bandwidth and view RX band at 3rd order product frequency calculated in step 14 Loosen fastening screw in each corner on front cover of WRH under test, and open cover5 Verify the noise floor specification for the Spectrum Analyzer. If the noise floor is higher than or equal to -85 dBm/100 kHz, locate FON, disconnect UL cable from port P101 and connect SpectrumAnalyzer to the cable using an SMA female - female connector (noise limit becomes -115 dBm + 60 dB = -55 dBm). Continue with step 7.6 If noise floor is lower than -85 dBm/100 kHz, locate the FON card and connect the Spectrum Analyzer to P117 (noise limit becomes -115 dBm + 60 dB - 30 dB = -85 dBm). If the FON only has three RF ports on the left side, port P117 will not be available, so follow instructions listed in step 5.7 Enable WRH TX signal. For details on using OM-Online, see OM-Online user manual8 Using Spectrum Analyzer, measure noise level. If no noise exists above calculated limit in step 5 (-55 dBm) or step 6 (-85 dBm) above, as appropriate, then test is passed and no other action is necessary9 If a higher level of noise exists, disable the WRH TX signal and disconnect cable to DAS at bottom-left outside corner10 Connect low PIM load onto WRH Service antenna connector at bottom-left outside corner. Tighten connectors securely11 Remeasure noise level. If no noise exists above calculated limit in step 5 (-55 dBm) or step 6 (-85 dBm) as appropriate, then DAS has a PIM issue. Tighen all connections in DAS with torque wrenches, replace any cripmed or severely bent cables, and retest. Repeat until all issues are solved12 Otherwise, if noise is higher than limit, WRH is defective and must be replaced. See Chapter 4 for Replacement procedures
Commissioning Nexus FT3-12 044-05251 Rev C
044-05251 Rev C 4-1Chapter 4 MaintenanceIntroductionThis chapter contains periodic maintenance and performance test procedures for the WRH.Periodic MaintenancePeriodic maintenance requirements are listed in Table 4-1, as well as the intervals at which the tasks should be performed.TroubleshootingThe sections that follow contain a list of problems that could occur and a few suggested actions that might correct each problem. If the suggested corrective action does not eliminate the problem, please contact your Powerwave field representative or help line for further instruction.Clearing Alarm FaultsTable 4-2 lists the alarms that can be generated in the WRH. Critical, Error and Warning alarms are sent automatically from a WRH to OM-Online, stored and then viewed in the Alarm window.Table 4-1 Recommended Periodic MaintenanceTask Interval ActionInspection of cables and connectors 12 months Inspect power, RF and Fiber cables for signs of damage or wear (frayed insulation, cracks, punctures, etc.) Check connections to be sure they are tightOptional Perform cable sweepsClean equipment Clean as required depending on operating environmentTable 4-2 Alarm Troubleshooting ID Alarm Text Alarm Unit Alarm Description1Power PSU Critical PSU1 in the cabinet does not work properly. A sum signal from the PSU1 indicates that at least one voltage output has dropped. If no mains breakdown relay is used, then the alarm will also be sent at mains breakdownCeasing PSU1 in the cabinet works properly again. Ceasing is sent if the PSU1 works at start-up, and there is a corresponding critical PSU1 alarm logged in the Events log. The WRH will restart when the power is back and this alarm will be sentPSU Critical PSU2 in the cover does not work properly. A sum signal from the PSU2 indicates that at least one voltage output has dropped. If no mains breakdown relay is used, then the alarm will also be sent at mains breakdown
Troubleshooting Nexus FT4-2 044-05251 Rev CCeasing 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 sentPower FON Error The FON 10 Volt charger voltage is below limit. Suggested remedy: Replace the FONCeasing The cause of the alarm has ceased2WRH restart CU None Power on start, or user ordered reboot. Logged to indicate a normal power up, or a restart ordered by the operatorWarning Software error restart, 1st – 7th time. Restart 1st to 7th time during a 14 day period. The counter is reset every 14th day, counted from power upError Software error restart 8th – 10th time. Restart 8th to 10th time during the 14 day period. At the 11th time, the SW bank will be blocked and not used anymore until a user ordered reset is performed, or power is switched off/on3Mains breakdown External Critical The mains power is gone. Used with an external relay indicating mains breakdown. The external relay should be connected to External Alarm 1 and the WRH configured to indicate this alarm. If no relay is used, a mains breakdown will be reported as a PSU faultCeasing The mains power is back. Sent if there is a corresponding critical mains breakdown alarm logged in the Events Log. The WRH will restart when the power is back4Alarm reset CU None Alarm reset by the user. All alarms are reset. The cause of the alarm will be re-evaluated and reported, if still active5Local bus error WBA #, MCPA# Error Error when communicating on the bus. The CU has no contact with the WBA, or MCPA PCBA, which is taken out of service6Main bkd w backup External Error Used to indicate that the mains is no longer available. WRH is powered by external battery backup unit. Suggested remedy: Check the mains powerCeasing The cause of the alarm has ceased7Err in AD-converter Warning The analog-to-digital converter on the CU PCBA does not give reliable values8New unit detected None Compared to the last power on, the CU has recognized at least one additional hardware unit9Inst. unit lost Error Compared to the last power on, the CU lacks at least one hardware unit10 EEPROM error CU Error EEP read or write fail. Data cannot be written or read from the EEPROM on the CU PCBA. User parameters are stored in the EEPROM11 Log memory fault Error Log memory fault. Indicates that the log memory on the CU PCBA is faulty. The WRH will not work. Not available in all CU software versionsTable 4-2 Alarm Troubleshooting (Continued)ID Alarm Text Alarm Unit Alarm Description
Nexus FT Troubleshooting044-05251 Rev C 4-312 High temp CU Warning The CU PCBA temperature is higher than 90°CCeasing The CU PCBA temperature has fallen below 90°C13 REFO error Error Significant REFO drift or error detected by CU14 Ext REFO error Warning Suggested remedy: Check the reference source and the cables15 CU battery fault CU 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. Suggested remedy: Ensure jumper P3 on the CU PCBA is mounted to charge the batteryCeasing The cause of the alarm has ceased16 SW load error CU Error Software load error. An error has occurred during a software load process. The flash memory does not contain a proper software. Suggested remedy: Check the CU software using the OM-Online SW Manager. Do NOT restart the WRH17 Log cleared CU None Log memory has been cleared. The check sum in the Events Log memory is faulty. The log is cleared. Can be caused of a bad RAM battery backup or low voltage to the RAM18 RTC restarted CU None The time is changed by the operator (logged to keep track of changes made to the RTC)Warning Time reset to 1994-01-01. The RTC was unable to keep track of the time and did a reset. Suggested remedy: Ensure jumper P3 on the CU PCBA is mounted to charge the battery19 RTC error Error RTC does not operate. The CU has detected an error in the RTC operation which makes the time unreliable. Suggested remedy: Replace the CU PCBA20 Door open alarm External Config The door has been open 30 seconds without disabling the alarmCeasing The door has been closed 30 seconds, or the alarm is disabled21 External alarm 1 External Config External alarm input EA1 active more than 1 secondCeasing External alarm input EA1 no longer active22 External alarm 2 External Config External alarm input EA2 active more than 1 secondCeasing External alarm input EA2 no longer active23 External alarm 3 External Config External alarm input EA3 active more than 1 secondCeasing External alarm input EA3 no longer active24 External alarm 4 External Config External alarm input EA4 active more than 1 secondCeasing External alarm input EA4 no longer activeTable 4-2 Alarm Troubleshooting (Continued)ID Alarm Text Alarm Unit Alarm Description
Troubleshooting Nexus FT4-4 044-05251 Rev C30 No modem found Remote ctrl None No modem found, that is no answer is returned on a poll string to the modem33 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. This alarm does not generate a new attempt to report alarm by alarm call.34 Login failed None Invalid WRH password35 Remote connection Remote ctrl None Modem connection to OM-Online opened. Not logged on CU2. Login Registry gives the same function and more information about CU236 Modem init failed Remote ctrl None Initiation string to modem not OK. The initiation string sent to the modem is not OK. The string may contain commands not recognized by the modem. An alarm might be sent anyway. Suggested remedy: Check the modem using the OM-Online or OMS modem debugger37 Remote timeout Remote ctrl Warning The time limit of 20 minutes is exceeded without extending the timer. The modem connection is terminated by the WRH38 PIN code failed Remote ctrl Warning The PIN code sent to MS is incorrect. To unlock the MS/SIM card, the PUK code will probably be neededCeasing The cause of the alarm has ceased39 No phone detected Remote ctrl Warning When using a PC-card together with the MS, the alarm indicates contact with the PC-card, but MS is not present or turned off. Note: A Nokia MS does not power-up after power failure. Suggested remedy: Ensure the cellular phone is connectedCeasing The cause of the alarm has ceased40 Battery fault RCU, FON charger Error The backup battery on the RCU or the FON PCBA does not work properly. Suggested remedy: Check cables or replace batteryCeasing The cause of the alarm has ceased42 Antenna isolation WBA #, Channel #, UL/DLWarning Low antenna isolation. The antenna isolation is lower than the gain set. Gain is reduced by 10dB – 13dB below the oscillation point. Suggested remedy: Decrease gain or increase antenna isolationError Low antenna isolation at lowest gain. The gain has been reduced as much as possible but the oscillation still remains. The amplifier is turned off. Suggested remedy: Decrease gain or increase antenna isolationCeasing Normal operation again, that is no oscillation can be detected 13dB above the gain set48 Battery backup fault External 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 alarmTable 4-2 Alarm Troubleshooting (Continued)ID Alarm Text Alarm Unit Alarm Description
Nexus FT Troubleshooting044-05251 Rev C 4-5Remarks:The Door Open alarm requires an optional door switch described in the Door Open Alarm section of Chapter 3.The Main power breakdown alarm requires an optional relay described in the Main Power Breakdown Relay section of Chapter 3.Ceasing The cause of the alarm has ceased50 Fiberoptical error FOT fiber optics Configurable If a fiber unit alarm is connected to external alarm 3, then the operator can configure the WRH to display this alarm when the fiber optical unit indicates alarmCeasing The cause of the alarm has ceased70 Bad table alarm CU Error Requested table contains incorrect information (SW error)71 Table not found CU Error Requested table not found in the database (SW or calibration error)72 Table database errorCU Error Table database not found (calibration error)80 Antenna SWR alarm Donor antenna service antennaError Too low antenna return loss, caused either by cables, connectors, or antenna problems. Suggested remedy: Check antenna and cablesCeasing The cause of the alarm has ceased90 FON power alarm FON RF Error A DC voltage on a FON PCBA is out of range. Suggested remedy: Replace the FON PCBA.Ceasing The cause of the alarm has ceased91 FON TxStable alarmFON RF Error Laser transmitter control loop voltage out of range. Suggested remedy: Replace the FON PCBACeasing The cause of the alarm has ceased92 FON RxLevel alarm FONWarning Received optical level is below any of the two limits (one for Warning and one for Error). Suggested remedy: Check optical cablesError Received optical level is below any of the two limits (one for Warning and one for Error). Suggested remedy: Check optical cablesCeasing The cause of the alarm has ceased93 FON SPI alarm FON F2F Error The SPI bus connection to the RF modem does not work properly. Suggested remedy: Replace the FON PCBA245 Not In Allowed Area CU NoneWRH is moved from the operating area and the RF HW is switched on or offTable 4-2 Alarm Troubleshooting (Continued)ID Alarm Text Alarm Unit Alarm Description
Field Replaceable Units Nexus FT4-6 044-05251 Rev CField Replaceable UnitsThe following units can be replaced in the field on-site by a qualified technician with experience maintaining RF equipment:❑ FON❑ PSU❑ WRHFONTo 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. Be sure to cap fiber optic cables to protect the connecting end from damage CAUTION: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure"NOTE Verify ‘Fiberoptical’ classmark in the FON Status window is checked, otherwise FON will not be operational. Classmarks are described in the OM-Online User Manual.Verify that the keyed angle polished connectors are aligned properly before tightening. Improper alignment can result in high signal loss and/or no connectivity with that node.Table 4-3 FON Replacement ProcedureStep Action1Loosen all four locking screws on front of cabinet 2Open WRH door and secure3Locate power connector on FON and remove connector from PCBA4Verify all cables on FON are labeled before disconnecting, then disconnect all cables. 5Remove screws securing FON PCBA to FOU and remove PCBA6Replace FON PCBA in reverse order and apply power7Connect PC to OM Online port, login to FON and verify configuration and IP address.8Close WRH door and secureNOTE After replacing the FON, if measurements taken at the fiber connector are correct but the OM Online measurement indicates a loss several dB higher, the likely causes are: 1) Dirty fiber. 2) The DIN to FC bulkhead adapter is bad. 3) Loose fiber connection on the FON board. 4) Bad WDM.
Nexus FT Field Replaceable Units044-05251 Rev C 4-7PSU To replace a PSU, follow the steps listed in Table 4-4. For details on cables and connectors, see Chapter 2.Figure 4-1 PSU Cable, Switch and Lable locationsTable 4-4 PSU Replacement ProcedureStep Action1Loosen all four locking screws on front of cabinet2Open WRH door and secure3Disconnect main power plug from PSU(Location 1 shown in Figure 4-1)4Disconnect power cable bundle from PSU(Location 2 shown in Figure 4-1)5Loosen but do not remove screws securing PSU using a 5mm Allen key and remove PSU (Location 3 shown in Figure 4-1)6On new AC power supply, if used, set input voltage switch on PSU to correct input voltage -- 115 VAC or 230 VAC (Location 4 shown in Figure 4-1)7On new DC power supply, if used, verify that the supply voltage is 24 VDC or 48 VDC as stated on label on PSU (Location 5 shown in Figure 4-1)8Set new PSU to correct output supply voltage (27 VDC) by moving wire connection plug as illustrated on label on PSU (Location 6 shown in Figure 4-1)9Mount new PSU with all four fixing screws (Location 3 shown in Figure 4-1)10 Connect PSU to DIA PCBA (Location 2 shown in Figure 4-9) with cable marked VE007 98/1. This cable must be used in all situations. If only one connection is available on DIA PCBA, the second connector may be tied out of the way with a cable tie11 Insert power cord (AC power supply) or connect DC power cable brown wire (Europe) or black wire (US) to positive (+) pole and blue wire (Europe) or white wire (US) to negative (-) pole (DC power supply)12 Close WRH door and secure with four locking screws on front of cabinet456
Remote Control Unit (RCU) Nexus FT4-8 044-05251 Rev CWRHTo replace a WRH, follow the steps listed in the Table 4-5. .Remote Control Unit (RCU)The RCU provides remote control of Powerwave WRHs. It contains an integrated mobile phone, modem and power supply backup. The RCU is installed in the bottom front of the cabinet, on top of the PSU as illustrated in Figure 4-2.The RCU is connected to P130 on either an RCI or FON. A jumper is required between pins 1 and 2 on the RCI if the P130 cable connector is disconnected. If a main power failure occurs, the unit has a battery with enough capacity for sending a number of alarms.Figure 4-2 RCU in the WRH cabinetWARNING: A fully loaded WRH can weigh 96lbs. Lifting of the WRH should be done by two people. Do not attempt to carry the WRH up a ladder.Table 4-5 WRH Replacement ProcedureStep Action1Loosen all four locking screws on front of cabinet2Open WRH door and secure3Disconnect main power plug from PSU4Verify all external cables connected to WRH are labeled before disconnecting, then disconnect all external cables5Remove mounting screws from bottom legs of WRH and loosen mounting screws in top legs6Close and secure door7Lift the WRH off of mount hinges8Replace WRH in reverse order9Connect PC to OM Online port and verify configuration. For Fiber Optic installations, verify IP address10 Close WRH door and secureMSDPXANTTESTDC-30 dB-20 dB MSDPXANTTESTDC-30 dB-20 dBALL GON INNO VATIONSWEDEN M105 R61PARKINGFOR W5W58P27 W6B 101P33ALARMP23LNAUP-LINKP32MODEMAUX1P28DOOR596111611M->SP11P348915P2615 16S->M12389P365X0AX0B2V2 116P12 P13111161616P4P5P6cbacbacbacba1P2321ba116P316 116P141V111111461156915216124585P35P21PSU610P31PCP29P24P25GND76V6LNADOWN-LINKLEDP2212POWER SUPPLY UNITRCU
Nexus FT Return For Service Procedures044-05251 Rev C 4-9RCU for Radio CommunicationThe RCU antenna for a radio modem is connected to the BS antenna via the uplink DC, provided the RCU and the WRH operate in the same cell system. Otherwise, the modem must have a separate antenna. Data is transferred between the WRH and the RCU via the P130 modem port on the RCI or FON. The RCU is also powered via the same port and has a battery with enough capacity to send a number of alarms if a main power failure occurs.RCU for Telephone Line CommunicationThe land line version uses a telephone line connected to a terminal block on the RCU. A free strain relief bushing at the bottom of the WRH is used for the external telephone line cable.Return For Service ProceduresWhen returning products to Powerwave, the following procedures will ensure optimum response.Obtaining an RMAA Return Material Authorization (RMA) number must be obtained prior to returning equipment to the factory for service. Pease contact our Repair Department at +1-714-466-1000 to obtain this number, or FAX your request to +1-714-466-5800. Failure to obtain this RMA number may result in delays in receiving repair service.Repackaging for ShipmentTo ensure safe shipment of the unit, it is recommended that the original package designed for shipping the unit be reused. If it is not available, contact Powerwave’s Customer Service Department at 1-800-797-9283, +1-714-466-100 or by e-mail at support@pwav.com for packing material.
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044-05251 Rev C 5-1Chapter 5SpecificationsIntroductionThis chapter provides specifications for the WRH.Table 5-1: WRH Specifications ElectricalFrequency band UL 788 to 805 MHz (CS, PS)824 to 849 MHz (Cellular)806 to 824 MHz (800 iDEN)880 to 915 MHz (GSM 900)896 to 901 MHz (900 iDEN)1710 to 1785 MHz (GSM 1800)1850 to 1910 MHz (PCS)1850 to 1915 MHz (PCS+G)1920 to 1980 MHz (UMTS)1710 to 1755 MHz (AWS 2100)Frequency band DL 758 to 775 MHZ (CS, PS)869 to 894 MHz (Cellular)851 to 869 MHz (800 iDEN)935 to 940 MHz (GSM 900)925 to 960 MHz (900 iDEN)1805 to 1880 MHz (GSM 1800)1930 to 1990 MHz (PCS)1930 to 1995 MHz (PCS+G)2110to 2170 MHz (UMTS)2110 to 2155 MHz (AWS 2100)Max absolute delay <300 nsGain adjustment range (in 1 dB steps) 30 dBGainUplinkDownlinkVariation35 to 60 dB typical - Excluding fiber link45 to 70 dB typical - Excluding fiber link± 1.5 dB versus temperature including fiber link± 1.5 dB versus DL frequency including fiber link± 0.5 dB versus DL output power including fiber link± 0.5 dB versus input voltage including fiber link± 2.0 dB versus UL frequency including fiber linkInstantaneous bandwidth 17 MHz (CS, PS)25 MHz (Cellular)18 MHz (800 iDEN)35 MHz (GSM 900)5 MHz (900 iDEN)75 MHz (GSM 180060 MHz (PCS)65 MHz (PCS+G)60 MHz (UMTS)45 MHz (AWS)
Introduction Nexus FT5-2 044-05251 Rev CUplink AGC limit 0 dBm at FON inputDownlink AGC limit 43 dBm at antenna portReturn Loss 11 dBDownlink, 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 dBFiber-Optic Link Budget 10 dBoReceiver input port return loss 14 dBPower supply voltage 115/230 VAC 21-60 VDCMaximum Current Draw (Single Band) 6 A @ 115 VAC3 A @ 230 VAC15A @ 21-60 VDCMaximum Current Draw (Dual Band) 6 A @ 115 VAC3 A @ 230 VAC15A @ 21-60 VDCRecommended Fuse size Single BandDual Band10 A for AC voltage20 A for DC voltage20 A for AC voltage40 A for DC voltagePower consumption 210 W typical, 300 W max (Single band) 420 W typical, 600 W max (Dual band)ImpedanceInputOutput Not Applicable - Optical input50 ΩMechanicalDimensions (W x H x D in inches) 465 x 530 x 195 mm (18.3 x 20.9 x 8.3 in) incl. hinges (low cover)465 x 530 x 310 mm (18.3 x 20.9 x 12.3 in) incl hinges (high cover)Weight <25 kg (55 lbs) low cover<44 kg (96 lbs) high coverService Antenna port connector 7/16 DIN FemaleDonor Optical port connector FC/APCEnvironmentalOperating Temperature Range -25 °C to +55 °C (-13°F to +131°F)Altitude -142 m to 4000 m (-466 ft. to 13100 ft.Casing class NEMA4/IP65Table 5-1: WRH Specifications (Continued)
Nexus FT Introduction044-05251 Rev C 5-3Fiber Optic Node (FON)Bandwidth @ 3dB 800 – 2200 MHzPower Consumption, total <5 WWavelength TX: DFB 1310 or 1550 nmRX: 1250 – 1600 nmTransmit Max continuous RF inputOptical output power, two levelsRF attenuation settable by SW in 1dB steps+36dBm+3 or 0dBm0-20dBReceiveMax optic power inputRF attenuation settable by SW in 1dB stepsAlarm threshold level, settable warningAlarm threshold level, settable error+5dBm4-24dB0-40dBm0-40dBmTable 5-1: WRH Specifications (Continued)
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044-05251 Rev C A-1Appendix ABlock DiagramsIntroductionThis appendix describes the main signals paths for the WRH.Non-DiversityFigure A-1 shows the non-diversity block diagram configuration of the WRH. The WRH 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 via a fiber optic cable. The optical signal is then 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.The RF signal enters the WBA, is amplified, and further amplified in amplifier stages followed by controllable attenuators. The signal exits the WBA and enters the MCPA where it is amplified and fed to the DPX. The amplified output signal passes the DPX before it is fed to the service antenna.The uplink signal path is located on the same WBA but goes through an LNA before entering the WBA.Figure A-1 WRH Block Diagram - Non-DiversityWDMFOUDXDXDPXDPXWBAWBADLDLULUL LNALNAMCPAMCPATo/FromOCM orBMURCURCIPSU CUFONALI ToExternal alarms850 MHzTX0/RX01900 MHzTX0/RX0
Diversity Nexus FTA-2 044-05251 Rev CDiversityFigure A-2 illustrates the diversity block diagram configuration of the WRH. 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.Figure A-2 WRH Block Diagram - DiversityWDMDXDX DPXWBADLLNAMCPATo/FromOCM orBMURCURCIPSU CUFONALI ToExternalalarmsFOUDXLNADPXDPXWBALNAMCPALNADPXULDLFON1900 MHzTX0/RX0850 MHzTX0/RX0850 MHzRX11900 MHzRX1ULULUL
Nexus FT Diversity044-05251 Rev C A-3

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