ADC Telecommunications DLCSMR3D Digivance LRCS SMR Dual Band System User Manual 75179

ADC Telecommunications Inc Digivance LRCS SMR Dual Band System 75179

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ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-12© 2004, ADC Telecommunications, Inc.Table 2-2. Typical Spectrum Transport Module User InterfaceREF NOUSER INTERFACE DESIGNATION DEVICE FUNCTIONALDESCRIPTION1FWD(PORT 1) SC connector(single-mode) Input connection point for the forward path opti-cal fiber.2REV(PORT 2) SC connector(single-mode) Output connection point for the reverse path pri-mary optical fiber.3I/0 On/Off rocker switch Provides AC power on/off control. 4 No designation 3-wire AC power cord connector Connection point for the AC power cord. 5 No designation 2- wire DC power cord connector Connection point for the back-up battery power cord. 6 AUXILIARY DB-9 connector (female) Connection point for the RS-232 auxiliary com-munications interface cable. 7 SERVICE DB-9 connector (female) Connection point for the RS-232 service inter-face cable. 8 AC POWER Multi-colored LED(green/red)Indicates if the STM is powered by the AC power source (green) or the back-up battery system (red). See Note.9 STANDBY Multi-colored LED(green/yellow/red)Indicates if the system is in the Normal state (off) Standby state (blinking green), Test state (blink-ing red), or Program Load state (blinking yel-low). See Note. 10 HOST UNIT Multi-colored LED(green/yellow/red)Indicates if no alarms (green), a minor alarm (yellow), or a major alarm (red) is reported by the HU. See Note.11 STM Multi-colored LED(green/yellow/red)Indicates if the STM is normal (green) or faulty (red). See Note.12 PA Multi-colored LED(green/yellow/red)Indicates if the power amplifier is normal (green), over temperature (yellow), has a fan fail-ure (yellow), is turned off (red), or faulty (red). See Note.13 VSWR Multi-colored LED(green/yellow/red)Indicates if the forward path VSWR is above (red) or below (green) the fault threshold. 14 FWD/REV(PORT 1/PORT 2) Multi-colored LED(green/red)Indicates if the forward path optical signal from the HU are normal (green), if no signal is detected (red), or errors are detected (red). See Note. 15 ALARM IN MINORALARM IN MAJORScrew-type terminalconnector (14–26 AWG)Connection point for two external alarm inputs. The door-open switch lead wires are typically connected to the major alarm terminals. 16 ANTENNA N-type female RF coaxial connector Connection point for the antenna. Note: A more detailed description of LED operation is provided in Section 4.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-13© 2004, ADC Telecommunications, Inc.4 35 WATT LINEAR POWER AMPLIFIERThe 35 Watt Linear Power Amplifier (LPA), shown in Figure 2-5, works in conjunction with theSTM to amplify the forward path RF signal. The STM is interfaced with the LPA through the D-sub connectors and wiring harness located at the rear of the RU outdoor cabinet or indoormounting shelf. The RF signal is passed to the LPA for amplification and then passed back tothe STM for filtering and output via the STM’s ANTENNA port. The STM also supplies DCpower to the LPA through the same interface. 4.1 Primary ComponentsThe LPA consists of several electronic circuit board assemblies and two fan units that aremounted within a powder-paint coated sheet metal enclosure. The metal enclosure provides amounting point for the electronic components and controls RF emissions. Except for the fanunits, the electronic components are not user replaceable. The LPA is designed for use with theRU outdoor cabinets and the indoor mounting shelf. All controls, indicators, and switches aremounted on the LPA front panel for easy access. A carrying handle is provided on the front ofthe LPA to facilitate installation and transport. Figure 2-5. 35 Watt Linear Power Amplifier Module19731-B
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-14© 2004, ADC Telecommunications, Inc.4.2 MountingThe 35 Watt LPA mounts within the RU outdoor cabinets and the indoor mounting shelf.Runners on the top and bottom of the LPA mesh with tracks within the cabinet or mountingshelf. The runners and tracks guide the LPA into the installed position. The electrical interfacebetween the STM and LPA is supported by a D-sub female connector located on the rear side ofthe LPA. A corresponding D-sub male connector mounted at the rear of the RU outdoor cabinetor indoor mounting shelf mates with the LPA connector. Captive screws are provided forsecuring the LPA in the installed position. 4.3 Fault Detection and Alarm ReportingThe 35 Watt LPA, in conjunction with the STM, detects and reports various faults includingpower amplifier fault, output power fault, temperature fault, and fan fault. Various LightEmitting Diode (LED) indicators, located on the front panel of the LPA, turn from green to redor yellow if an LPA fault is detected. In addition, a digital display located on the LPA frontpanel provides various fault messages. The status of the LPA, the alarm state (major or minor),and other more detailed information is summarized and reported (by the STM) over the opticalinterface to the HU and also to the service interface. This information may be accessed throughthe EMS software GUI, the NOC/NEM interface, or the SNMP interface. 4.4 PoweringThe LPA is powered by various DC voltages which are supplied by the STM over the electricalinterface provided by the D-sub connectors and wiring harness mounted within the RU outdoorcabinet or indoor mounting shelf. 4.5 CoolingContinuous air-flow for cooling is provided by a pair of fans. In the previous version of the LPA,fans are mounted at the front and the rear side of the LPA housing. The front fan pulls cool airinto the module and the rear fan exhausts heated air out of the module. In the new version of theLPA, two front mounted fans pull cool air into the module. The heated air is exhausted out theback of the module. An alarm is provided that indicates if a high temperature condition (>50º C/122º F) occurs or if a fan failure occurs. The fans may be field replaced if a failure occurs. 4.6 User InterfaceThe LPA user interface consists of the various LEDs, message displays, and switches that areprovided on the LPA front panel. The LPA user interface points are indicated in Figure 2-6 anddescribed in Table 2-3.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-15© 2004, ADC Telecommunications, Inc.Figure 2-6. Linear Power Amplifier User Interface (Typical)Table 2-3. Linear Power Amplifier User InterfaceREF NOUSER INTERFACE DESIGNATION DEVICE FUNCTIONALDESCRIPTION1 RESET Momentary contact push button switch Momentarily pressing the push button clears all alarms and restarts the amplifier2 RF ON OFF 2-position switch Placing the switch in the OFF position puts the LPA in the standby state with RF output disabled. With the switch off, the STM can not control the LPA output power. Placing the switch in the ON position puts the LPA in the normal state and allows the STM to enable and disable the RF output. 3FAIL LED indicator (yellow) Indicates the LPA is normal (off) or faulty (yellow). 4 SHUTDOWN LED indicator (red) Indicates the LPA is in service (off) or shutdown (red). 5 No designation Digital display Provides status and alarm messages. See Note. Note: A more detailed description of the digital display messages is provided in Section 4. 19730-B(1) RESETSWITCH(2) RF ON/OFFSWITCH(3) FAILLED(4) SHUTDOWNLED(5) DIGITALDISPLAY
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-16© 2004, ADC Telecommunications, Inc.5 REMOTE UNIT MOUNTING SHELFThis section provides a brief description of the remote unit indoor mounting shelf. For completeinformation, refer to the Installation and Maintenance Manual for the mounting shelf. 5.1 Indoor Mounting ShelfThe indoor mounting shelf, shown in Figure 2-7, is a rack-mountable frame assembly thatprovides mounting slots for the STM, LPA, WDM (accessory), and CWDM (accessory)modules plus connectors and a wiring harness for interfacing the STM and LPA modules. Themounting shelf is designed for indoor installation in a 19- or 23-inch, EIA or WECO,equipment rack. The frame assembly is constructed of aluminum and steel and is painted puttywhite for corrosion protection. The indoor mounting shelf does not provide a mounting slot fora back-up battery. Figure 2-7. indoor Mounting Shelf14.15 IN.(359 MM)16.06 IN.(408 MM)16.89 IN.(429 MM)TOP VIEWFRONT VIEW 19008-A
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-17© 2004, ADC Telecommunications, Inc.The AC power, fiber optic, and antenna cables route to the front of the indoor mounting shelf forconnection to the STM front panel. A lightning protector kit (accessory) is available separatelyif lightning protection is required. A grounding lug is provided on the side of the mounting shelffor connecting a grounding wire.The indoor mounting shelf user interface consists primarily of the mounting slots and the ACand DC power cables. The user interface points are shown in Figure 2-8. For additionalinformation, refer to the Digivance LRCS System Indoor Remote Unit Installation andMaintenance Manual (ADCP-75-160). Figure 2-8. indoor Mounting Shelf User Interface6 SLIM-STYLE REMOTE UNIT CABINETSThis section provides a brief description of the slim-style remote unit cabinets. Four types ofslim-style cabinets are available. For complete information, refer to the Installation andMaintenance Manual for the cabinet. Each slim-style cabinet enclosure is constructed of heavy gauge aluminum and is painted puttywhite for reduced solar loading and corrosion protection. Connection and entry points areprovided in the bottom of the enclosure for the antenna coaxial cables, fiber optic cable, and ACpower cable. Vent openings are provided in the bottom of the enclosure to permit air exchangefor cooling. 19009-A(1) STMMOUNTINGSLOT(5) WDMMOUNTINGSLOT(2) LPAMOUNTINGSLOT (3) GROUNDINGSTUDS (INSIDE)(6) CWDMMOUNTINGSLOT(7) CWDM DCPOWER CABLE(4) AC POWERCABLE
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-18© 2004, ADC Telecommunications, Inc.The slim-style cabinet is weather-tight, but contact with salt-air mist should be avoided as itmay degrade the Mean Time Between Failure (MTBF) of the product. Drain hole openings inthe bottom of the cabinet allow any moisture that does enter the cabinet to drain out. The cabinetdoor may be padlocked to prevent unauthorized entry. A door open switch is provided so that acustomer-selectable major or minor alarm is generated whenever the cabinet door is opened. The slim-style cabinet can be mounted on a flat vertical surface, a pedestal, or from a utilitypole. A pedestal-mount kit (accessory) is available for pedestal-mount installations and a pole-mount kit (accessory) is available for pole-mount installations. A grounding lug is provided onthe bottom of the cabinet for connecting a grounding wire. 6.1 Slim-Style Single-STM CabinetThe slim-style single-STM cabinet, shown in Figure 2-9, is a NEMA-3R enclosure (withremovable dust filter) that houses the remote modules and protects them from the environment.The cabinet consists of the enclosure, mounting slots for the STM and LPA modules, an ACpower interface, a lightning protector, two fiber slack spools, and a mounting slot for a WDM orCWDM (accessory) remote module. Figure 2-9. Slim-Style Single-STM Cabinet19400-B12.0 IN(305 MM)20.7 IN(526 MM)40.4 INCHES(1016 MM)WITH BATTERY 31 INCHES(787 MM)W/O BATTERY
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-19© 2004, ADC Telecommunications, Inc.On an optional basis, the cabinet is available either with or without a battery compartment. Thebattery compartment version provides a mounting tray for a back-up battery. The slim-stylecabinet is designed for use in an outdoor environment but may be mounted indoors if required.Opening the hinged door provides full access to the interior of the enclosure to facilitate moduleand cable installation. The slim-style single-STM cabinet user interface consists of the various connectors, fittings,outlets, and switches that are provided on the interior and exterior of the enclosure. The userinterface points are indicated in Figure 2-10 and Figure 2-11. For additional information, referto the Digivance LRCS System Slim-Style Single-STM Remote Unit W/Battery Installation andMaintenance Manual (ADCP-75-165); or the Digivance LRCS System Slim-Style Single-STMRemote Unit Without Battery Installation and Maintenance Manual (ADCP-75-173). Figure 2-10. Slim-Style Single-STM Cabinet User Interface - Top Front View(7) DOORSWITCH(8) ACPOWER CORD(1) AIR INLETFILTER(3) STMMOUNTINGSLOT(2) LPAMOUNTINGSLOT(5) WDM/CWDMMOUNTING SLOT(4) BATTERYTRAY(6) CWDMPOWER CORD19295-B
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-20© 2004, ADC Telecommunications, Inc.Figure 2-11. Slim-Style Single-STM Cabinet User Interface - Bottom Front View6.2 Slim-Style Dual-STM CabinetThe slim-style dual-STM cabinet, shown in Figure 2-12, is a NEMA-3R enclosure (withremovable dust filter) that houses the remote modules and protects them from the environment.The cabinet consists of the enclosure, mounting slots for the STM and LPA modules, an ACpower interface, two lightning protectors, two fiber slack spools, and mounting slots for WDMor CWDM (accessory) remote modules. 19296-B(9) FIBERSLACK SPOOLS(13) GROUNDINGLUG(14) 3/4-INCH NPTTHREADED HOLE(10) FIBER CABLECONNECTORBOTTOM VIEWOF CABINET(15) CIRCUITBREAKERRESET SWITCH(11) PRIMARY LIGHTNINGPROTECTOR CONNECTOR(12) DIVERSITY LIGHTNINGPROTECTOR CONNECTOR(ACCESSORY)
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-21© 2004, ADC Telecommunications, Inc.Figure 2-12. Slim-Style Dual-STM Cabinet On an optional basis, the cabinet is available either with or without a battery compartment. Thebattery compartment version provides a mounting tray for a back-up battery. The slim-stylecabinet is designed for use in an outdoor environment but may be mounted indoors if required.Opening the hinged door provides full access to the interior of the enclosure to facilitate moduleand cable installation. The slim-style dual-STM cabinet user interface consists of the various connectors, fittings,outlets, and switches that are provided on both the interior and exterior of the enclosure. Theuser interface points are indicated in Figure 2-13 and Figure 2-14. For additional information,refer to the Digivance Slim-Style Dual-STM Remote Unit W/Battery Installation andMaintenance Manual (ADCP-75-172); or the Digivance Slim-Style Dual-STM Remote UnitWithout Battery Installation and Maintenance Manual (ADCP-75-174).19573-A20.7 IN.(526 MM)40.4 INCHES(1026 MM)WITH BATTERY31 INCHES(787 MM)W/O BATTERY18.8 IN(478 MM)
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-22© 2004, ADC Telecommunications, Inc.Figure 2-13. Slim-Style Dual-STM User Interface - Top Front View(4) BATTERYTRAYS(7) DOORSWITCH(8) ACPOWER CORDS(1) AIR INLETFILTER(3) STMMOUNTINGSLOTS(2) LPAMOUNTINGSLOTS(5) WDM/CWDMMOUNTING SLOTS(6) CWDMPOWER CORD19424-B
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-23© 2004, ADC Telecommunications, Inc.Figure 2-14. Slim-Style Dual-STM User Interface - Bottom Front View7 ACCESSORY ITEMSThis section provides a brief description of various accessory items that are available separately.The accessory items may or may not be required depending on the application. 7.1 Remote Unit Back-up Battery KitA back-up battery kit (accessory item), shown in Figure 2-15, is available when the applicationrequires that the remote system remain operational during an AC power outage. A battery tray isprovided within specified enclosures for mounting the battery. The tray includes a heating padthat keeps the battery warm during cold weather. A temperature sensor regulates the operation19425-B(9) FIBERSLACK SPOOLS(14) GROUNDINGLUG(13) 3/4-INCH NPTTHREADED HOLE(10) FIBER CABLECONNECTORBOTTOM VIEWOF CABINET(15) CIRCUITBREAKERRESET SWITCH(11) PRIMARY LIGHTNINGPROTECTOR CONNECTORS(12) DIVERSITY LIGHTNINGPROTECTOR CONNECTORS(OPTION)
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-24© 2004, ADC Telecommunications, Inc.of the heating element and a circuit breaker provides overcurrent protection. The back-upbattery kit includes a wiring harness for connecting the battery to the STM. During normaloperation, the STM provides charging current to maintain the battery charge level. During anAC power outage, the battery provides DC power to the STM to maintain system operation. Thebattery can maintain operation of the RU for approximately 1 hour with the 50 Watt LPA and 2hours with the 20 Watt LPA. Figure 2-15. Back-Up Battery Kit7.2 Wavelength Division Multiplexer SystemThe Wavelength Division Multiplexer (WDM) system is an accessory product that is used whenit is desirable or necessary to combine the forward and reverse path optical signals from oneDigivance system onto a single optical fiber. Each WDM system consists of a host module, hostmodule mounting shelf, and remote module. The WDM host module mounting shelf cansupport two WDM host modules. The RU indoor mounting shelf and the outdoor cabinetsprovide a mounting slot for installing a WDM remote module. The WDM host module and hostmodule mounting shelf are shown in Figure 2-16. The WDM remote module is shown inFigure 2-17. Figure 2-16. WDM Host Module and Host Module Mounting Shelf17014-A18646-A
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-25© 2004, ADC Telecommunications, Inc.Figure 2-17. WDM Remote ModuleEach WDM module consists of either one (remote module) or two (host module) bi-directionalwavelength division multiplexers mounted within a powder-paint coated sheet metal enclosure.An SC-type optical connector port is provided for connecting the forward/reverse path opticalfiber to the WDM module. A pair of pigtail leads with SC-type connectors are provided forconnecting the WDM module to the forward and reverse path optical ports on the HU or STM. 7.3 Coarse Wavelength Division Multiplexer SystemThe Coarse Wavelength Division Multiplexer (CWDM) system is an accessory product that isused when it is desirable or necessary to combine the forward and reserve path optical signalsfrom up to four Digivance systems onto a single optical fiber. Each CWDM system consists of aHost Module, Host Module mounting shelf, and Remote Module. The CWDM Host Modulemounting shelf can support up to three CWDM Host Modules. The RU indoor mounting shelfand the outdoor cabinets provide a mounting slot for installing a CWDM Remote Module. The CWDM Remote Module is shown in Figure 2-18. The CWDM Host Module and HostModule Mounting Shelf are shown in Figure 2-19. For complete information about the CWDMsystem, refer to the Digivance System Coarse Wavelength Division Multiplexer User Manual(ADCP-75-142).Figure 2-18. CWDM Remote Module17013-A18648-A
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-26© 2004, ADC Telecommunications, Inc.Figure 2-19. CWDM Host Module and Host Module Mounting Shelf8 DIGIVANCE ELEMENT MANAGEMENT SYSTEMThe Digivance Element Management System (EMS) is a software-based network managementtool that provides control and monitoring functions for the Digivance system. Digivance EMS isused to provision and configure new systems for operation, set system operating parameters, getsystem alarm and status messages, and upgrade the system software. Digivance EMS supportslocal control by an on-site service technician and also remote control through a NetworkOperations Center (NOC) interface or an SNMP interface. 8.1 Digivance EMS Primary ComponentsThe primary components of the Digivance EMS, shown in Figure 2-20, are packaged separatelyfrom the various Digivance hardware items and consist of the following items: User Manuals,mouse pad, license agreement, and three CD-ROMs which contain both software and varioustechnical publications. All software items install on a PC-type computer which is not provided.A cable (DGVL-000000CBPC) for connecting the EMS computer to either the HU or RU isavailable separately as an accessory item. 18647-A
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-27© 2004, ADC Telecommunications, Inc.EMS CD-ROM: The EMS software, the Java 2 Version 1.3.1 Runtime Environment software,and the Control and FPGA software (HU and RU firmware files) are loaded on the EMS CD-ROM. The EMS software provides local monitor and control functions through a GraphicalUser Interface (GUI) and remote monitor and control functions through the NOC/NEMinterface. Several Control and FPGA firmware programs are also included on the EMS CD-ROM for downloading to the HU and RU in case either hardware unit is not already loaded withthe current firmware. Figure 2-20. Digivance Element Management SystemSNMP CD-ROM: The SNMP Proxy Agent software is optional and is provided on the SNMPCD-ROM. The SNMP Proxy Agent software provides for remote monitor and control functionsthrough a network SNMP manager. If the SNMP interface is required for system operation, boththe EMS software and SNMP Proxy Agent software must be installed on the same computer.The SNMP Proxy Agent software will not function without the EMS software. Manuals CD-ROM: PDF files of the various Digivance technical publications are provided onthe Manuals CD-ROM. A copy of Acrobat Reader is required to open and print the publicationfiles. A copy of Acrobat Reader may be downloaded free of charge from the Adobe.comwebsite if necessary. EMS CD-ROM SNMP CD-ROM MANUALS CD-ROMORNOTE: COMPUTER NOT PROVIDED18705-AUSER MANUALSMOUSE PAD
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-28© 2004, ADC Telecommunications, Inc.8.2 Software InstallationSoftware installation consists of inserting each software CD-ROM into the computer’s CD-ROM drive and then running the software install programs. This places the EMS, Java 2Runtime Environment, and SNMP Proxy Agent software files in assigned folders on thecomputer’s hard drive. Software installation instructions are provided in the Digivance ElementManagement System User Manual (ADCP-75-151). 8.3 Computer OperationPermanent control and monitoring functions may be provided by a PC-type desk-top computerthat is permanently connected to a HU. The EMS program must be running in order for theNOC interface to function. Both the EMS program and SNMP Proxy Agent program must berunning in order for the SNMP interface to function. A PC-type lap-top computer running justthe EMS program can be used as a portable network management tool for service andmaintenance purposes. The laptop computer may be connected temporarily to a HU or RU totrouble-shoot problems on-site and then removed when the maintenance task is completed. Thespecifications for the EMS computer are provided in the Digivance Element ManagementSystem User Manual (ADCP-75-151). 8.4 Digivance EMS Computer Interface ConnectionsThe service interface connection between the EMS computer and the HU or RU requires thatthe EMS computer be equipped with a DB-9 connector that is configured to provide an RS-232DCE interface. A straight-through RS-232 interface cable (accessory item) equipped with amale DB-9 connector on one end and a PC-compatible connector on the other end is required tolink the EMS computer to the HU or RU. If multiple HUs are networked together using theCAN interface, all units may be managed by connecting the EMS computer to the serviceconnector on any one of the networked HUs. The NOC interface connection between the EMS computer and the NOC requires that the EMScomputer be equipped with a connector that is configured to provide an RS-232 ASCIIinterface. The link between the EMS computer and the NOC would generally be supported by aT1 system, DS0 with RS232 conversion, or other medium. Cables and equipment (not provided)to support the RS-232 interface connection between the EMS computer and the NOC interfaceare required. The SNMP interface connection between the EMS computer and the SNMP manager requiresthat the EMS computer be equipped with an Ethernet port. The link between the EMS computerand a network SNMP manager would generally be supported by a Local Area Network (LAN).Cables and equipment (not provided) to support the connection between the EMS computer andthe LAN are required.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-29© 2004, ADC Telecommunications, Inc.8.5 Digivance EMS User InterfacesThe Digivance EMS provides three user interfaces: the EMS Graphical User Interface (GUI),the Network Operation Center–Network Element Manager (NOC/NEM) interface, and theSNMP GUI interface. The EMS GUI, the NOC interface, and the SNMP GUI provide the samebasic functions. However, the NOC interface and the SNMP GUI cannot be used to downloadnew system software to the Digivance system. In addition, the SNMP GUI cannot be used toassign a system site number to a HU/RU pair during installation. The EMS GUI is used for local control and monitoring operations. The EMS GUI consists of aseries of displays and screens, such as the one shown in Figure 2-21, that provide the user withalarm and status information and that allow the user to set various operating parameters.Directives are implemented by pointing and clicking on the desired action and also by enteringtext in various dialog boxes. Refer to the Digivance Element Management System User Manual(ADCP-75-151) for additional information. Figure 2-21. Graphical User Interface Host/Remote DisplayThe NOC/NEM interface is a text-based command line interface that is used for remote controland monitoring operations (except software download). The NOC/NEM interface consists ofdefined ASCII text strings that are input as SET or GET commands followed by the action orinformation required. A text string response is received from the specified Digivance system orsystems to confirm the requested action or to report the requested information. Examples ofseveral typical NOC-NEM interface commands and the responses received are shown inFigure 2-22. The NOC/NEM interface requires only a VT100 terminal/emulator or a PC-typecomputer that is loaded with a communication software such as Procomm Plus. While primarilyintended for use at the NOC, the NOC/NEM interface commands may also be input locallyfrom the EMS computer. Refer to the Digivance Element Management System User Manual(ADCP-75-151) for additional information.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-30© 2004, ADC Telecommunications, Inc.Figure 2-22. NOC/NEM Interface Typical CommandsThe SNMP interface is a GUI that is used for remote control and monitoring operations (exceptsoftware download and site number assignment). The SNMP interface uses a ManagementInformation Base (MIB) to define a list of identifiers that are supported by the SNMP agent.The SNMP manager communicates with the SNMP agent over a LAN. Directives, based on theMIB identifier, are issued by the SNMP manager to the SNMP agent along with instructions toeither get the specified identifier or set the specified identifier. The directive is then executed onthe Digivance system by the SNMP agent. The SNMP agent also has the ability to sendautonomous messages (called traps) to the SNMP manager to report changes in the status of themanaged system. The SNMP manager Stargazer Version 8.0 is available from ADC for use withthe LRCS SNMP agent. Other SNMP managers are available from various networkmanagement software venders. Refer to the SNMP Agent Software User Manual (ADCP-75-152) for additional information.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-31© 2004, ADC Telecommunications, Inc.9 SPECIFICATIONSRefer to Table 2-4 for the Digivance SMR LRCS system nominal specifications. Allspecifications apply after a five minute warm-up period. Table 2-4. 800/900 MHz SMR System Nominal SpecificationsPARAMETER SPECIFICATION REMARKSOptical - Host and Remote UnitFiber type 9/125, single-modeNumber of fibers requiredWith WDMWithout WDM12The wavelength division multi-plexer (WDM) is an accessory item. Forward path wavelength 1550 nmReverse path wavelength 1310 nmOptical transmit power output Host Unit Remote Unit 0 dBm +2 dBmOptical budget 25 dB For optical BER of 10–6Optical Receive Input –15 dBmOptical connectors Industry standard SC Host, remote, and WDMOptical - Host and Remote WDMPassband 1310 nm ± 20 nm1550 nm ± 20 nmForward path insertion loss Host WDM Remote WDM0.7 dB0.3 dB Does not include connector lossReverse path insertion loss Host WDM Remote WDM0.3 dB0.7 dB Does not include connector lossIsolation > 30 dB minimumReturn loss (Reflectance) < –50 dB All input portsRF Forward Path - 800/900 MHzSystem bandwidth 18 MHz5 MHz 800 MHz transmit900 MHz transmitFrequency range 851–869 MHz935–940 MHzGain of forward path(Host input to Remote primary antenna port)85 dB with 35 Watt LPA At band center, room tempera-ture, and 0 dB attenuation set-ting. Includes power amplifier.Gain flatness Band flatness Channel flatness ± 2.0 dB across freq. range± 1 dB variation across any 1.25 MHz channel
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-32© 2004, ADC Telecommunications, Inc.Gain variation ± 3 dB over temp and unit-to-unitPropagation delay 6 µs Excludes fiber delayConfigurable propagation delay Range Step size Up to 63 µs0.1µs ± 100 nsPlus standard propagation delaySpurious In-band self generated Dynamic range (noise floor) –13 dBm at remote output<–60 dBc Transmit peak-to-average 10 dBTwo-tone Intermodulation <–60 dBcNominal composite RF input signal level –43 dBm at 0 dB attenuation–12 dBm at max. attenuation An input signal level of –43 dBm provides maximum output power Configurable input level Range Step size 31 dB1 ± 0.5 dB ±10% of attenuation monotonicComposite RF Output power of both bands with 35 Watt LPA 43.4 dBm (22 Watts) at remote antenna port with –43 dBm input 35 Watts at LPA outputConfigurable RF Output Range Step size 31 dB at remote unit1 ±0.5 dB ±10% of attenuation monotonicTransmit path insertion loss 2.5 dB maximumRF Reverse Path - 800/900 MHzSystem bandwidth 18 MHz5 MHz 800 MHz receive900 MHz receiveFrequency range 806–824 MHz896–901 MHzPropagation delay 6 µs Excludes fiber delayConfigurable propagation delay Range Step size Up to 63 µs0.1µs ±1 100 nsPlus standard propagation delayGain of reverse path Overall gain Gain variation30 ± 2 dB at band center at room temperature3 dB over temperatureGain flatness Band flatness Channel flatness <1.5 dB across frequency range<1 dB variation across any 1.25 MHz channelOut-of-band rejection –40 dB at < 30 MHzTable 2-4. 800/900 MHz SMR System Nominal Specifications, continuedPARAMETER SPECIFICATION REMARKS
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-33© 2004, ADC Telecommunications, Inc.Spurious (in-band self gener-ated) –110 dBm referred to inputIntermodulation –62 dBcSystem noise figure 8 dB at mid-bandConfigurable RF output Range Step size 31 dB1 ± 0.5 dB ± 10% of attenuation monotonicBlocking dynamic range 70 dBLevel limiting ALC threshold –40 dBm ± 3 dB instantaneousLevel limiting ALC range 30 dBPhysical/Environmental/Electrical - Host UnitDimensions (H×W×D) 3.5 × 17.1 × 12.2 inches(88 × 433 × 311 mm) Dimension for width does not include the mounting brackets which can be installed for either 19- or 23-inch racks. Mounting 19- or 23-inch rack EIA or WECOWeight 18 lbs. (8.2 kg)Weather resistance Indoor installation onlyOperating temperature 0º to 50º C (32º to 122º F)Storage temperature –40º to 70º C (–40º to 158ºF)Humidity 10% to 90% No condensationExternal alarm connector Screw-type terminals NO and NC relay contactsDC power connector Screw-type terminal stripRF coaxial cable connectors N-type (female)Service connector DB-9 (female) RS-232 DTE interfaceAuxiliary connector DB-9 (female) RS-232 DTE interfaceCAN connectors RJ-45 jackPower input ± 24 or ± 48 VDC ± 21 to ± 60 VDCPower consumption 55 wattsCurrent rating 1 Amp at –48 VDCReliability at 25ºC MTBF 80,000 hours Excluding fansTable 2-4. 800/900 MHz SMR System Nominal Specifications, continuedPARAMETER SPECIFICATION REMARKS
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-34© 2004, ADC Telecommunications, Inc.Blank
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-1© 2004, ADC Telecommunications, Inc.SECTION 3: OPERATION 1 BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11.2 Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22 TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22.1 Turn-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32.2 Check/Download HU and RU Control Program and FPGA Program Software . . . . . . . . . . . . . . . . . . . . . . . . .3-62.3 Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-82.4 Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102.5 Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-112.6 Determine Output Signal Level at STM Antenna Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132.7 Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132.8 Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-152.9 Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17_________________________________________________________________________________________________________1 BEFORE STARTING OPERATIONThis section provides guidelines for turning-up the Digivance system, verifying that all units areoperating properly, testing to ensure that all performance requirements are satisfied, andcorrecting any installation problems. This process assumes that the various units have beeninstalled in accordance with the system design plan. 1.1 Tools and MaterialsThe following tools and materials are required in order to complete the procedures in thissection: • Portable spectrum analyzer or RF power meter• AC/DC voltmeter• External attenuators (if specified in system design plan)• PC-type computer with Digivance Element Management System (EMS) Version 3.01software installed• Straight-through RS-232 DB-9 interface cable (accessory)• Handset• Pencil or pen• Writing padContent Page
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-2© 2004, ADC Telecommunications, Inc.1.2 Readiness CheckBefore starting the turn-up process, inspect the complete Digivance system to verify that allcomponents of the system are ready to be powered-up. This will ensure that no units of thesystem will be damaged during turn-up and that all existing systems will continue to functionproperly. 1.2.1 Host Unit Installation ChecksComplete the following checks at the HU prior to starting the turn-up process: 1. Verify that the ON/OFF switch on the HU is in the OFF position (press O). 2. At the fuse panel, install a 3 Amp GMT fuse in the circuit that supplies DC power to the HU. 3. Using a DC voltmeter, verify that the DC voltage level at the HU power terminals isbetween ± 21 to ± 60 VDC (nominal ± 24 or ± 48 VDC). The DC power provided to theHU can be either polarity. 4. Verify that all electrical and optical connections have been completed and that all opticalfibers, coaxial cables, and wires are properly routed and secured. 1.2.2 Remote Unit Installation ChecksComplete the following checks at the RU prior to starting the turn-up process: 1. Verify that the ON/OFF switch on the STM is in the OFF position (press O). 2. Verify that the RF ON/OF switch on the LPA in the OFF position. 3. At the AC breaker box, close the circuit breaker for the circuit that supplies AC power tothe RU. 4. Using an AC voltmeter, verify that the AC voltage level at the AC outlet is between 110and 120 VAC (for 120 VAC powered systems) or between 220 and 240 VAC (for 240 VACpowered systems). 5. Verify that all electrical and optical connections have been completed and that all opticalfibers, coaxial cables, and wires are properly routed and secured. 2 TURN-UP SYSTEM AND VERIFY OPERATIONThe process of turning-up the system and verifying operation involves powering up the varioussystem components, verifying that the LED indicators show normal operation, setting the sitenumber and name, adjusting the RF signal levels, and adjusting the path delay. Note: When connecting the equipment to the supply circuit, be sure to check equipmentnameplate ratings to avoid overloading circuits which may cause damage to over-currentprotection devices and supply wiring.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-3© 2004, ADC Telecommunications, Inc.2.1 Turn-Up ProcedureEach Digivance system must be turned-up separately before being networked together withmultiple systems through the CAN interface. Use the following procedure to turn-up eachDigivance system: 1. Temporarily disconnect the external alarm system or notify the alarm system provider thattesting is in progress. 2. If the HU is networked together with multiple HU’s, temporarily disconnect the CAN cablesfrom the NET IN and NET OUT ports of the HU. 3. Determine if the forward path composite input signal level at each host unit RF IN port(851–869 FORWARD and 935–940 FORWARD) is appropriate to produce the requiredRF output signal level. Adjust by installing an external attenuator if necessary. Refer toSection 2.3 for the calculation and adjustment procedure. 4. Connect the EMS computer (if not already connected) to the SERVICE connector on theHU or STM front panel. If necessary, a separate laptop computer loaded with EMS Version3.01 software can be temporarily connected and used to initially configure the system. 5. At the HU: Place the ON/OFF switch on the HU in the ON position (press I). 6. At the RU: Make sure the RF switch on the LPA is in the OFF position. Then place theON/OFF switch on the STM in the ON position (press I). 7. Wait 6 to 8 seconds for the HU and the RU modules to initialize and then observe the LEDindicators on the HU, STM and LPA. Refer to Section 4 for the troubleshootingprocedures if the indicators do not respond as specified in Table 3-1. Table 3-1. LED Indicator Operation at Initial Turn-UpNote: By default, all HU’s and RU’s are programmed with the same site number andname. This can cause problems for the EMS if multiple HU’s with the same site numberand site name are networked together through the CAN interface. It is therefore necessaryto temporarily disconnect the CAN interface cables from the HU when it is beingconfigured for operation until a unique site number and name can be assigned. HOST UNIT SPECTRUM TRANSPORT MODULE 35 WATT LPAPOWER – Green AC POWER – Green FAIL – OffSTANDBY – Off STANDBY – Off SHUTDOWN – RedHOST UNIT – Green HOST UNIT – Green Digital Display – FORCED SHUTDOWNREMOTE UNIT – Green STM – GreenDRIVE 851–869 and DRIVE 935–940 – Green, Yellow, or Red PA – GreenFWD/REV (PORT 1/PORT 2) – Green VSWR – GreenFWD/REV (PORT 1/PORT 2) – Green
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-4© 2004, ADC Telecommunications, Inc.8. Start up the EMS Version 3.01 software program. The EMS main window will open asshown in Figure 3-1. Note: The EMS software should be installed on a PC-type computerand the PC’s COMM port should be configured to interface with the HU. For informationabout installing the EMS software and configuring the PC’s COMM port, refer to theDigivance Element Management System Version 3.01 User Manual (ADCP-75-151). Figure 3-1. Digivance Element Management System Main Window9. Open the View drop down menu and connect to the Host and Remote pair by selecting the“NotNamed/NotNamed” Host/Remote pair. The HOST Alarms display and the REMOTEAlarms display will open within the main window as shown in Figure 3-2. Figure 3-2. Selecting Display TabsClick to view dropdown menuClicking on the tabs inthis list will open the cor-responding display.Host/Remote pairsite name
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-5© 2004, ADC Telecommunications, Inc.10. New Control program software and FPGA program software will be provided separatelyon a “as needed” basis. If new Control and FPGA software is not provided with thesystem, skip this step and proceed to step 11. If new Control and FPGA software isprovided, check the version numbers of the new software against the version numbers ofthe software loaded on the Host and Remote Units. If the software loaded on the Host andRemote Units is older than the new software, download the new software to both the HostUnit and the Remote Unit. Refer to Section 2.2 for details. 11. Click on the HOST Config tab and on the REMOTE Config tab (see Figure 3-2). TheHOST Config display and the REMOTE Config display will open within the main window. 12. Enter the Site Name and Site Number for both the HOST and the REMOTE unit. Refer toSection 2.4 for details. 13. If the Digivance system will be networked together with other Digivance systems,reconnect the CAN cables to the HU’s NET IN and NET OUT ports. 14. Verify that no Major or Minor alarms (except Major or Minor Extern Alarm) are beingreported in either the HOST or REMOTE Alarm displays (except as indicated in the notebelow) and that all alarm fields (except Major or Minor Extern Alarm) are green. 15. Click on the HOST RF tab (see Figure 3-2). The HOST RF display will open within themain window. 16. Enter the Host Fwd Att (Forward Attenuation) value. This sets the forward input RFsignal level at the HU. Refer to Section 2.5 for details. By default, this value is set to 31dB. If the DRIVE 851–869 and DRIVE 935–940 LED’s on the HU front panel were red,both should turn green when this step is completed. 17. Determine if the RF output power at the STM ANTENNA is at the correct level perchannel up to a composite maximum of +43.4 dBm (22 Watts). Refer to Section 2.6 fordetails. 18. Place the RF ON/OFF switch on the LPA in the ON position. 19. Verify that the SHUTDOWN LED indicator on the LPA turns from red to off and theDigital Display message changes from FORCED SHUTDOWN to NORMALOPERATION. 20. Click on the REMOTE RF tab (see Figure 3-2). The REMOTE RF display will openwithin the main window. 21. Enter the Remote Fwd Att value. This adjusts the RF output signal level at the STMANTENNA port. By default this value is set to 31 dB. Refer to Section 2.7 for details. 22. Click on the HOST RF tab (see Figure 3-2). The HOST RF display will open within themain window. Note: The Site Name and Site Number must be unique for each Digivance system. Note: The Host RF Underdrive may indicate a minor alarm until the Host Fwd Att andRemote Fwd Att values are set. The Remote LPA disable will indicate a major alarm untilthe LPA is enabled.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-6© 2004, ADC Telecommunications, Inc.23. Enter the Host Rev Att (Reverse Attenuation) values. This sets the reverse output RFsignal levels at the two host unit RF OUT ports (806–824 REVERSE and 896–901REVERSE). By default each value is set to 31 dB. Refer to Section 2.8 for details. 24. If a delay adjustment is required, enter the Host Fwd Delay and Host Rev Delay values.By default, the delay values are set to 0. Refer to Section 2.9 for details. 25. If a separate laptop computer loaded with the EMS software was used to initiallyconfigure the system, disconnect the laptop computer from the SERVICE connector. 26. Reconnect the external alarm system or notify the alarm system provider that the turn-upprocess has been completed. 2.2 Check/Download HU and RU Control Program and FPGA Program SoftwareThe HU’s and RU’s may require a Control program or FPGA program software download ifthey are not loaded with the current software. Use the following procedure to check the Controlor FPGA program software and if necessary, to download the current software:1. Click on the HOST Prg Load tab and on the REMOTE Prg Load tab. The HOST PrgLoad display and the REMOTE Prg Load display will open within the EMS mainwindow as shown in Figure 3-3. Figure 3-3. HOST and REMOTE Prg Load Displays - Control Program DownloadNote: When two or more HU’s are connected together through the CAN interface, onlyone EMS computer is required to manage the networked Digivance systems. The EMScomputer may be connected to the SERVICE port on any one of the HUs in the network. Click to open Select ControlProgram window for HOSTClick to start down-load to HOST. Click to start down-load to REMOTE.Click to open Select ControlProgram window for REMOTE. Click to verify software versionbefore starting download.Click to verify software versionbefore starting download.Indicates control programand FPGA software installedon host unitIndicates control programand FPGA software installedon remote unit
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-7© 2004, ADC Telecommunications, Inc.2. Within the HOST display, locate the Control Program File field. 3. Click on the Select button (see Figure 3-3). The Select Control Program File windowwill open as shown in Figure 3-4. Browse until the folder where the Control Program filesare located is selected and the software files are displayed in the window. Select the firstControl program file and then click on the OK button. Figure 3-4. Select Control Program File Window4. Click on the Compare button to determine if the software file selected is the same versionof the file already loaded on the unit. A message will appear to indicate the result. 5. If the software file is the same, a software download is not required. If the file selected isdifferent, check the version number shown in the Software Info field against the numberof the file displayed in the Control Program File field. If the file in the unit is older(lower number) than the file selected, proceed with the software download. If the file in theunit is the same as the file selected, the software download is not required. 6. To start the Control program download (if necessary), click on the Load button (seeFigure 3-3). When downloading is complete, verify that the program has loaded correctly. 7. Check the FPGA Program field. If the program shown is UNKNOWN, the unit has olderhardware and the FPGA program is non-replaceable. If a version number is shown, locatethe FPGA Program File field. Click on the Validate button to verify that the FPGA isfunctional (working). A message will appear to indicate if the FPGA is functional or not.8. If the FPGA is functional, click on the Select button. The Select FPGA Program Filewindow will open. Browse until the folder where the FPGA Program file is located and thefile is displayed in the window. Select the FPGA file and click on the OK button. 9. Check the version number shown in FPGA Program field against the version number ofthe file displayed in the FPGA Program File field. If the software in the unit is older (hasa lower version number) than the file selected, proceed with the download. If the softwarein the unit is the same as the file selected, the software download is not required. 10. To start the FPGA program download, click on the Load button. When downloading iscomplete, verify that the program has loaded correctly. 11. Within the REMOTE display, locate the Control Program File field. Then repeat steps 3through 10 to download the Control and FPGA program files to the REMOTE unit.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-8© 2004, ADC Telecommunications, Inc.2.3 Determine Forward Path Input Signal LevelThe level of the composite RF input signals received at the host unit 851–869 FORWARD RFIN and 935–940 FORWARD RF IN ports will vary depending on the EBTS, the cable loss, thenumber of channels present, and the required forward path composite power. If maximumcomposite RF output is required at the RU, the level of the composite RF input signal receivedat the HU must fall within a range of –12 to –43 dBm. If the signal level is not within this range,it must be adjusted using an external attenuator. When connecting a single HU to a single EBTS, use the following procedure to measure andadjust the input RF signal level at the HU: 1. Connect a spectrum analyzer or power meter to the 851–869 MHz forward path outputport at the EBTS. The required signal levels and test points are shown in Figure 3-5. 2. If using a spectrum analyzer, proceed to step 3. If using a power meter, measure thecomposite signal power from the EBTS and then proceed to step 5. 3. Measure the RF level of a single carrier, such as the control channel, in dBm. Make surethe resolution bandwidth of the spectrum analyzer is 30 kHz. Maximum power in anychannel should not exceed 5W (+37 dB). 4. Calculate the total composite signal power from the EBTS using the following formula: Ptot = Pc + 10Log N where,Ptot is the total composite power in dBmPc is the power per carrier in dBm as measured in step 3, andN is the total number of channels. 5. Determine the total cable loss that is imposed by the forward path coaxial cable that linksthe EBTS to the HU and also any insertion loss imposed by splitters or combiners. 6. Subtract the total cable loss and any insertion losses from the total composite powercalculated in step 4. 7. Subtract –25 (midpoint of the required range) from the value determined in step 6. Thedifference (which should be positive) equals the value of the external attenuator that isrequired to reduce the forward path signal level to fall within the required range. Thefollowing formula outlines the required calculations for steps 6 and 7: Ptot – (Cable and insertion loss) – (–25) = Value of external attenuator required8. Select an attenuator that is as close to the value calculated in step 7 as possible. Select avalue that will adjust the signal level of the composite input signal to fall within thespecified range. Note: Check the input rating of the test equipment and the output rating of the EBTS. Toavoid burning out the spectrum analyzer or power meter, it may be necessary to insert a30 dB 100W (or similar) attenuator between the EBTS and test equipment.Note: If the input signal level is already within the required range of –12 to –43 dBm, thenno external attenuator is required.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-9© 2004, ADC Telecommunications, Inc.Figure 3-5. Signal Levels, Test Points, and AdjustmentsFORWARD PATHINPUT SIGNAL LEVELAT HOST UNIT(-25 dBm TYPICALCOMPOSITE FORFULL POWER)HOST UNITREMOTE UNIT ENHANCED BASE TRANSCEIVER STATION20012-AOPTICAL LINKANTENNAQUADRAPLEXER/FILTERFORWARD PATH SIGNALLEVEL AS SET BY HOSTFORWARD PATHATTENUATORS(ADJUST TO -43 dBmCOMPOSITEFOR FULL POWER)REVERSE PATH OUTPUTSIGNAL LEVEL AS SET BY HOSTREVERSE PATH ATTENUATORSMAXIMUM OUTPUT SIGNALLEVEL AT ANTENNA PORT(43.4 dBm AT FULL POWER)FORWARD PATH SIGNALLEVEL AS SET BY REMOTEFORWARD PATHATTENUATORSLPA LPAEXTERNALATTENUATORS851-869TRANS-MITTER935-940TRANS-MITTER0 to 31 dBATTENUATORS(HOST FWD ATT)0 to 31 dBATTENUATORS(HOST REV ATT)0 to 31 dBATTENUATORS(REMOTE FWD ATT)RF, OPTICS,AND CONTROLRF, OPTICS,AND CONTROL896-901RECEIVER806-824RECEIVER
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: OperationPage 3-10© 2004, ADC Telecommunications, Inc.9. Install the external attenuator in the coaxial cable that is connected to the 851–869FORWARD RF IN port at the HU. 10. Repeat steps 1–8 for the 935–940 forward path output port at the EBTS. Install theexternal attenuator in the coaxial cable that is connected to the 935–940 FORWARD RFIN port at the HU. 11. Subtract the value of the external attenuators from the total composite signal power (Ptot)and record the result. This value will be required when setting the attenuation of the HU’sinternal forward path attenuators. 2.4 Enter Site Name and Site NumberAll HU’s and RU’s are programmed with the same site name and site number. It is thereforenecessary to assign a unique site name and site number to the HU and RU before they can beconnected to the same CAN network. Use the following procedure to assign a unique site nameand number to each HU and RU system:1. Click on the HOST Config tab and on the REMOTE Config tab. The HOST Configdisplay and the REMOTE Config display will open within the EMS main window asshown in Figure 3-6. Figure 3-6. HOST and REMOTE Config DisplaysCaution: The Host Unit can be damaged if it is overdriven by the EBTS. Always install anexternal protective attenuator at the Host Unit FWD RF IN port if the forward path compositeinput signal level is greater than –12 dBm. HOST Site NumberHOST Site NameREMOTE Site Number(Entered automaticallywhen the HOST sitenumber is selected)REMOTE Site NameClick on the Edit buttonto open pop-up screen

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