ADC Telecommunications DVLRCSSMR Digivance Long Range Coverage Solution SMR System User Manual 75134

ADC Telecommunications Inc Digivance Long Range Coverage Solution SMR System 75134

Part 4 new manual

ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit InstallationPage 3-13©2002, ADC Telecommunications, Inc.8 CONTROLLER AREA NETWORK CONNECTIONSController area Network (CAN) interface connections between multiple HU’s are supported byapair of RJ-45 jacks. One of the jacks is designated as the NET IN port and the other jack isdesignated as the NET OUT port. The CAN interface allows up to 15 HU’s to be connectedtogether (in daisy-chain fashion) and controlled through asingle Digivance EMS computer. Aone meter long cable is provided with each HU for CAN connections. Use the followingprocedure to connect CAN interface cables between multiple HU’s:1. Connect one end of the CAN interface cable (provided with the HU) to either the NET INor NET OUT port on HU #1 as shown in Figure 3-11.Figure 3-11. Controller Area Network Connections2. Route the CAN interface cable to HU #2 and connect the cable’s free end to the port that isthe logical opposite of the network port the cable was connected to at HU #1.3. If athird HU will be connected to the network, connect asecond CAN interface cable tothe remaining network port on HU #2.4. Route the second CAN interface cable to HU #3 and connect the cable’s free end to theport that is the logical opposite of the port that the cable is connected to at HU #2.5. Repeat steps 3and 4for each additional HU that is added to the network up to atotal of 15HU’s. Adiagram of typical CAN interface connections is shown in Figure 3-12.Note: If connected to aNET OUT port at HU #1, connect to the NET IN port at HU #2. Ifconnected to aNET IN port at HU #1, connect to aNet OUT port at HU #2.16901-ARJ-45 CONNECTORDETAILFCC ID: F8I-DVLRCSSMR Class II Permissive ChangeManual - Part 4
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit InstallationPage 3-14©2002, ADC Telecommunications, Inc.Figure 3-12. Configuring CAN Connections with Multiple Host Units9 SERVICE INTERFACE CONNECTIONThe service interface connection between the HU and the Digivance EMS computer issupported by asingle DB-9 female connector. The service connector provides an RS-232 DTEinterface. Athree meter long straight-through RS-232 interface cable is provided with the HUfor connecting the EMS computer to the HU. Use the following procedure to install the serviceinterface cable:1. Connect one end of the service interface cable (provided with HU) to the SERVICE port asshown in Figure 3-13.2. Route the service interface cable to the EMS computer and connect the free end of thecable to the computer’s RS-232 DCE port. Refer to the user manual provided with thecomputer to locate the required port.Figure 3-13. Service Interface ConnectionHOST UNIT 1 HOST UNIT 2 HOST UNIT 3NET IN NET OUT NET IN NET OUT NET IN NET OUT16900-ACONTROLLER AREA NETWORKINTERFACE CABLESTO NEXT HOST UNIT16890-A
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit InstallationPage 3-15©2002, ADC Telecommunications, Inc.10 EXTERNAL ALARM SYSTEM CONNECTIONSThe alarm interface between the HU and an external alarm system is supported by asix-terminalplug (with screw-type terminals) that connects to areceptacle mounted on the HU front panel.The terminal plug provides connections to normally open (NO) and normally closed (NC) drytype alarm contacts for both major and minor alarms. Acategory 3or 5cable is typically used toconnect the HU to the external alarm system. Use the following procedure to install the alarmwiring and connect it to the HU:1. Obtain the required length of category 3or 5cable.2. Route the cable between the HU and the external alarm system (if not already routed) andthen cut to the required length. Allow sufficient slack for dressing and organizing the cableat the HU.3. Strip back the outer cable sheath and insulation to expose the wires at both ends of thecable and strip back 0.2 inches (5 mm) of insulation from each wire.4. Connect the Major alarm wire pair to the MAJOR COM/NC or MAJOR COM/NOterminals (whichever is required by the external alarm system) on the HU alarm terminalconnector (supplied with HU) as shown in Figure 3-14.Figure 3-14. External Alarm System Connections5. Connect the Minor alarm wire pair to the MINOR COM/NC or MINOR COM/NOterminals (whichever is required by the external alarm system) on the HU alarm terminalconnector (see Figure 3-14).16884-AALARMCONNECTORMAJORALARMWIRESMINORALARMWIRESALARM CONNECTORDETAIL
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit InstallationPage 3-16©2002, ADC Telecommunications, Inc.6. Connect the Major and Minor alarm wire pairs to the appropriate terminals on the externalalarm system.7. Dress and secure cable per standard industry practice.11 DC POWER CONNECTIONSThe HU is powered by ±24 or ±48 Vdc power. The power is fed to the HU through ascrew-down type terminal strip located on the rear side of the unit. Power to the HU must be suppliedthrough afuse panel such as the 20 position PowerWorx fuse panel (available separately) andthe power must be protected with a 3 Amp GMT fuse. Use the following procedure to install thepower wiring:1. Obtain one pair of #18 AWG (1.00 mm) red and black insulated copper wire for use as thepower wiring.2. Terminate one end of each wire with afork terminal as shown in Figure 3-15.3. Connect the power wires to the power terminal strip at the rear of the HU.Figure 3-15. DC Power Connections4. Route the free ends of the wires to the fuse panel and locate the terminals that will be usedfor the power feed. Refer to the user manual provided with the fuse panel for specificinformation.5. Remove the fuse from the circuit that will power the HU.FORKTERMINALS#18 AWG(1.0mm)COPPERWIRE+ (RED)– (BLACK)16891-A
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit InstallationPage 3-17©2002, ADC Telecommunications, Inc.6. Connect the power wires to the appropriate terminals as specified in the fuse panel usermanual.7. Dress and secure the power wiring at the fuse panel and the HU. The procedure forchecking the voltage level and verifying that the HU is ready to power up is provided inSECTION 4: OPERATION.
ADCP-75-134 • Issue A • April 2002 • Section 3: Host Unit InstallationPage 3-18©2002, ADC Telecommunications, Inc.Blank
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-1©2002, ADC Telecommunications, Inc.SECTION 4: OPERATION1 BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11.2 Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22 TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22.1 Turn-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-32.2 Download HU and RU System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-62.3 Determine Baseline Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-72.4 Enter Site Number and Site Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-92.5 Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-102.6 Determine Output Signal Level at DDS Antenna Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-122.7 Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-122.8 Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-142.9 Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16_________________________________________________________________________________________________________1 BEFORE STARTING OPERATIONThis section provides guidelines for turning-up the Digivance LRCS, 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/DCvoltmeter• External attenuators (if specified in system design plan)• PC-type computer with Digivance Element Management System (EMS) software installed• Straight-through RS-232 DB-9 interface cable (ADC part #1192835)• Handset• Pencil or pen• Writing padContent Page
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-2©2002, ADC Telecommunications, Inc.1.2 Readiness CheckBefore starting the turn-up process, inspect the complete LRCS 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 aDC voltmeter, verify that the DC voltage level at the HU power terminals isbetween ±24 or ±48 Vdc (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.
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-3©2002, ADC Telecommunications, Inc.2.1 Turn-Up ProcedureUse the following procedure to turn-up the system:1. Temporarily disconnect the external alarm system or notify the alarm system provider thattesting is in progress.2. If turning-up multiple HU and RU systems that have not been configured for operationbefore, temporarily disconnect the CAN cables from the NET IN and NET OUT ports ofeach HU.3. Determine if the forward path input signal level at the Host Unit FORWARD RF IN port isbetween –20 and –40 dBm and adjust level if required. Refer to Section 2.3 for thecalculation and adjustment procedure.4. Connect the EMS computer (if not already connected) to the SERVICE connector on theHU or STM front panel. If necessary, aseparate laptop computer loaded with the EMSsoftware can be temporarily connected and used to initially configure the system.5. Place the ON/OFF switch on the HU in the ON position (press I).6. Place the ON/OFF switch on the STM in the ON position (press I).7. Wait 6to 8seconds for the HU and the RU modules to initialize and then observe the LEDindicators on the HU, STM and LPA. Refer to Section 5 for the troubleshootingprocedures if the indicators do not respond as specified.8. Start up the Digivance EMS software program. The EMS main window will open asshown in Figure 4-1.Note: The EMS software should be installed on aPC-type computerand the PC’s COM port should be configured to interface with the HU. For informationabout installing the EMS software and configuring the PC’s COM port, refer to theDigivance Element Management System Software User Manual (ADCP-75-118).Note: By default, all HU’s and RU’s are programmed with the same site number andname. This can cause problems for the Digivance EMS if multiple HU’s with the same sitenumber and site name are networked together through the CAN interface. It is thereforeadvisable to temporarily disconnect the CAN interface cables from the HU until auniquesite number and name can be entered for each HU and its corresponding RU.HOST UNIT SPECTRUM TRANSPORT MODULE LINEAR POWER AMPLIFIERPOWER –Green AC POWER –Green FAIL –OffSTANDBY –Off STANDBY –Off SHUTDOWN –RedHOST UNIT –Green HOST UNIT –Green Digital Display –FORCEDSHUTDOWNREMOTE UNIT –Green STM –GreenDRIVE –Green, Yellow, or Red PA –GreenPORT 1/PORT 2 – Green VSWR –GreenPORT 3 – Green(diversity unit only) PORT 1/PORT 2 – GreenPORT 3 – Green(diversity unit only)
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-4©2002, ADC Telecommunications, Inc.Figure 4-1. Digivance Element Management System Main Window9. Open the View drop down menu and connect to the Host and Remote pair by selecting“NotNamed/NotNamed”. The HOST Alarms display and the REMOTE Alarms displaywill open within the main window as shown in Figure 4-2.10. Download the system software to both the Host and the Remote unit. Refer to Section 2.2for details.Figure 4-2. Selecting Display TabsClick to view dropdown menuClicking on the tabs inthis list will open the cor-responding display.Host/Remote pairsite name
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-5©2002, ADC Telecommunications, Inc.11. Click on the HOST Config tab and on the REMOTE Config tab (see Figure 4-2). TheHOST Config display and the REMOTE Config display will open within the mainwindow.12. Enter the Site Number and Site Name for both the HOST and the REMOTE unit. Refer toSection 2.4 for details.13. Reconnect the CAN cables to the HU’s NET IN and NET OUT ports.14. Verify that no Major (except Major Extern Alarm) or Minor alarms are being reported ineither the HOST or REMOTE Alarm displays and that all alarm fields (except MajorExtern Alarm) are green.15. Click on the HOST RF tab (see Figure 4-2). The HOST RF display will open within themain window.16. Enter the Host Fwd Att (Forward Attenuation) values. This sets the forward input RF signallevel at the HU. Refer to Section 2.5 for details. By default, this value is set to 0dB. If theDRIVE LED on the HU front panel was red, it should turn green when this step is completed.17. Determine if the RF output power at each DDS ANTENNA port is at the correct level perchannel up to amaximum of 12 watts. Refer to Section 2.6 for details.18. Click on the REMOTE LPA tab (see Figure 4-2). The REMOTE PA display will openwithin the main window.19. Enter the Remote Fwd Att value. This adjusts the RF output signal level at the STMANTENNA port. Refer to Section 2.7 for details. By default this value is set to 0dB.20. Place the RF ON/OFF switch (on LPA front panel) in the ON position.21. Verify that the SHUTDOWN LED indicator (on LPA front panel) turns from red to off andthe Digital Display message changes from FORCED SHUTDOWN to NORMALOPERATION.22. Click on the HOST RF tab (see Figure 4-2). The HOST RF display will open within themain window.23. Enter the Host Rev Att (Reverse Attenuation), and Host Div Rev Att (Diversity ReverseAttenuation) values. This sets the reverse output RF signal levels at the HU. Refer toSection 2.8 for details.24. If adelay adjustment is required per the system design plan, enter the Host Fwd Delay,Host Rev Delay,and Host Div Rev Delay values. By default, the delay values are set to 0.Refer to Section 2.9 for details.25. If aseparate laptop computer loaded with the EMS software was used to initiallyconfigure the system, disconnect the laptop computer from the SERVICE connector on theHU front panel.Note: Each HU and RU pair will generally remain permanently connected to aPC-typedesktop computer loaded with the EMS software. When two or more systems areconnected together through the CAN interface, only one EMS computer is required tomanage the networked HU and RU systems. The EMS computer may be connected to theSERVICE power on any one of the HUs in the network.
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-6©2002, ADC Telecommunications, Inc.26. Reconnect the external alarm system or notify the alarm system provider that the turn-upprocess has been completed.2.2 Download HU and RU System SoftwareThe HU’s and RU’s may require asystem software download to make them operational. Use thefollowing procedure to download the system 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 main windowas shown in Figure 4-3.Figure 4-3. HOST and REMOTE Prg Load Displays2. Click on the HOST Select button (see Figure 4-3). The Select Control Program Filewindow will open as shown in Figure 4-4.Browse until the folder where the ControlProgram files are located is selected and the software files are displayed in the window.Figure 4-4. Select Control Program File WindowClick to open Select ControlProgram window for HOSTClick to start down-load to HOST. Click to start down-load to REMOTE.Click to open SelectControl Program win-dow for REMOTE.
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-7©2002, ADC Telecommunications, Inc.3. Select the required file to download and click on the OK button.4. Click on the HOST Load button (see Figure 4-3)to start the download.5. Repeat steps 2through 4for the REMOTE.2.3 Determine Baseline Forward Path Input Signal LevelThe level of the composite RF output signal at the FORWARD RF IN port at the HU will varydepending on the type of BTS, the cable loss, and the number of channels present. To interfacewith the HU, the signal level of the composite forward path RF signal must be adjusted to fallwithin arange of –20 to –40 dBm.If the signal level is not within this range, it must be adjustedto fall within this level through the use of an external attenuator. Use the following procedure tomeasure and adjust the input RF signal level at the HU:1. Connect aspectrum analyzer or power meter to the forward path output port at the EBTS.The required signal levels and test points are shown in Figure 4-5.2. Measure the RF level of asingle carrier, such as the control channel, in dBm. Make surethe resolution bandwidth of the spectrum analyzer or power meter is narrow enough tomeasure the power of the single 30 kHz channel only.3. Verify that all carriers are coming in at equal power at bandwidth and adjust to the samelevel if necessary.4. Calculate the total composite signal power from the EBTS using the following formula:Ptot = Pc+10Log NWhere,Ptot is the total composite power in dBmPcis the power per carrier in dBm as measured in step 2, andNis 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 –30 (the 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 6and 7:Ptot – (Cable and insertion loss) –(–30) =Value of external attenuator requiredNote: If the input signal level is already within the required range of –20 to –40 dBm, thenno external attenuator is required.
ADCP-75-134 • Issue A • April 2002 • Section 4: OperationPage 4-8©2002, ADC Telecommunications, Inc.Figure 4-5. Signal Levels, Test Points, and AdjustmentsINPUT SIGNAL LEVEL(-20 to -40 dBmCOMPOSITE)HOST UNITANTENNA 2REMOTE UNITEXTENDED BASETRANSCEIVER STATION17616-APRIMARYRECEIVER0 to 20 dBATTENUATOR(HOST REV ATT)0 to 20 dBATTENUATOR(HOST DIV ATT)OPTICAL LINKANTENNA 1DUAL DUPLEXER/SPLITTERADJUSTMENTS TO INPUTSIGNAL LEVEL AS SET BY HOSTFORWARD PATH ATTENUATORADJUSTMENTS TO OUTPUTSIGNAL LEVEL AS SET BY HOSTREVERSE PATH ATTENUATORADJUSTMENTS TO OUTPUTSIGNAL LEVEL AS SET BY HOSTDIVERSITY PATH ATTENUATORMAXIMUM OUTPUT SIGNALLEVEL AT DDS ANTENNA PORTSADJUSTMENTS TOOUTPUT SIGNAL LEVELAS SET BY THE REMOTEFORWARD ATTENUATORLPAEXTERNALATTENUATORTRANS-MITTER0 to 20 dBATTENUATOR(HOST FWD ATT)0 to 20 dBATTENUATOR(REMOTE FWD ATT)DIVERSITYRECEIVERRF, OPTICS,AND CONTROLRF, OPTICS,AND CONTROL

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