ADC Telecommunications DLC1902A Digivance 1900 MHz 20 Watt System User Manual 75158

ADC Telecommunications Inc Digivance 1900 MHz 20 Watt System 75158

manual 4

ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-8© 2003, ADC Telecommunications, Inc.5 CHASSIS GROUND CONNECTIONA stud is provided on the rear side of the chassis for connecting a grounding wire to the chassis.Use the following procedure to connect the grounding wire to the chassis and to route thegrounding wire to an approved earth ground source. 1. Obtain a length of #18 AWG (1.00 mm) insulated stranded copper wire for use as achassis grounding wire. 2. Terminate one end of the wire with a ring terminal. 3. Locate the chassis ground stud at the rear of the HU as shown in Figure 3-7. Figure 3-7. Chassis Ground Stud4. Attach the ring end of the wire to the chassis ground stud (see Figure 3-7). 5. Route the free end of the chassis grounding wire to an approved (per local code orpractice) earth ground source. 6. Cut the chassis grounding wire to length and connect it to the approved ground source asrequired by local code or practice. 6 COAXIAL CABLE CONNECTIONSThe RF interface between the HU and the BTS is supported through two N-type femaleconnectors mounted on the HU front panel. One connector provides the coaxial cableconnection for the forward path (downlink) signal and the other connector provides the coaxialcable connection for the reverse path (uplink) signal. In most installations, it is usually necessary to insert some attenuation in the forward path linkbetween the HU and the BTS. A signal level that is greater than –9 dBm will overdrive andNote: Be sure to maintain reliable grounding. Pay particular attention to ground sourceconnections.16169-AFCC ID: F8I-DLC1902A
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-9© 2003, ADC Telecommunications, Inc.possibly damage the HU receiver. Refer to Section 4, Subsection 2.3, before completing theforward path connection at the BTS. If the Conditioning Panel or Duplexing Panel is required,refer to the Digivance 800 and 1900 MHz Interface Panels User Manual (ADCP-75-147) for theinstallation procedures. The HU should be mounted as close as possible to the BTS to minimizecable losses. Use the following procedure to route and connect the forward and reverse pathcoaxial cables to the HU: 1. Obtain the required lengths of high performance, flexible, low loss 50-ohm coaxialcommunications cable (RG-400 or equivalent) for all coaxial connections. 2. Route the forward and reverse path coaxial cables between the HU and the BTS interface(per system design plan) and cut to the required length. Allow sufficient slack for dressingand organizing cables at the HU and for installing an external attenuator in the forwardpath link. 3. Terminate each cable with an N-type male connector following the connector supplier’srecommendations. 4. Connect the forward path cable to the FORWARD RF IN connector on the HU frontpanel as shown in Figure 3-8.Figure 3-8. Forward and Reverse Path Coaxial Cable Connections5. Connect the reverse path cable to the REVERSE RF OUT connector on the HU frontpanel (see Figure 3-8). 6. Dress and secure cables at the HU. 7. Complete all remaining coaxial connections as specified in the system design plan. Note: Do not connect the forward path cable at the BTS until the composite forward pathRF signal level is measured and the amount of attenuation required is determined. 18655-ATYPE-N MALECONNECTORFORWARD RF INCONNECTOR(FORWARD PATH)REVERSERF OUT CONNECTOR(REVERSE PATH)
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-10© 2003, ADC Telecommunications, Inc.7 OPTICAL CONNECTIONSThe optical interface between the HU and the RU is supported by two optical ports. Each opticalport consists of an SC optical adapter which is mounted on the HU front panel. Port 1 providesthe optical fiber connection for the forward path (downlink) signal. Port 2 provides the opticalfiber connection for the reverse path (uplink) signal. The optical connections are dependent on whether or not a WDM host module (accessory) orCWDM host module (accessory) is installed. If the installation does not include either a WDM orCWDM module, proceed to Section 7.1 for the optical connections procedure. If the installationincludes a WDM module, proceed to Section 7.2 for the optical connections procedure. If theinstallation includes a CWDM module, refer to the Digivance System Coarse WavelengthDivision Multiplexer User Manual (ADCP-75-142) for the optical connection procedure. 7.1 Optical Connections Without WDM or CWDM systemUse the following procedure to connect the optical fibers when a WDM or CWDM host module isnot installed with the HU: 1. Obtain two patch cords that are of sufficient length to reach from the HU to the fiberdistribution panel. 2. Designate one of the patch cords as the forward path link and the other as the reversepath link and attach an identification label or tag next to each connector.3. Remove the dust caps from the HU optical ports and from the patch cord connectors thatwill be connected to the HU. 4. Clean each patch cord connector (follow patch cord supplier’s recommendations). 5. Insert the connector into the appropriate optical port as shown in Figure 3-9.6. Route the patch cords from the HU to the fiber distribution panel. Danger: This equipment uses a Class 1 Laser according to FDA/CDRH rules. Laser radiationcan seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do notlook directly into the optical transmitter of any unit or exposure to laser radiation may result.An optical power meter should be used to verify active fibers. A protective cap or hood MUSTbe immediately placed over any radiating transmitter or optical fiber connector to avoid thepotential of dangerous amounts of radiation exposure. This practice also prevents dirt particlesfrom entering the connector. Note: To protect the optical receivers, insert a 15 dB attenuator in each optical path. Afterthe optical power has been measured, the attenuator may be resized or removed.Note: The HU optical adapters are angled to the left. Therefore, patch cords should alwaysbe routed to the HU from the left side of the rack. Routing patch cords to the HU from theright side of the rack may exceed the bend radius limitations for the optical fiber.
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-11© 2003, ADC Telecommunications, Inc.Figure 3-9. Fiber Optic Cable Connections To Host Unit7. At the fiber distribution panel, identify the OSP optical fiber terminations that correspondto the forward and reverse path. 8. Remove the dust caps from the from the patch cord connectors. 9. Clean each patch cord connector (follow patch cord supplier’s recommendations) and thenmate the connector with the appropriate OSP optical fiber termination. 10. Store any excess patch cord slack at the fiber distribution panel. 7.2 Optical Connections With WDM SystemUse the following procedure to connect the optical fibers when a WDM module is installed withthe HU: 1. Obtain a patch cord that is of sufficient length to reach from the WDM host module to thefiber distribution panel. 2. Remove the dust cap from Port 1 or Port 4 on the WDM module and from the patch cordconnector that will be connected to the WDM module. Note: Each WDM module can support two separate HU’s. The WDM module ports arenumbered from 1 through 6 as shown in Figure 3-10. Ports 1 through 3 are used for HU #1and Ports 4 through 6 are used for HU #2. 18656-APORT 1(FORWARD PATH)PORT 2(REVERSE PATH)
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-12© 2003, ADC Telecommunications, Inc.Figure 3-10. Fiber Optic Connections To WDM Module3. Clean the patch cord connector (follow connector supplier’s recommendations). 4. Insert the connector into one of the WDM module’s optical ports (port 1 or 4). 5. Route the patch cord from the WDM module to the fiber distribution panel. 6. Identify the OSP optical fiber termination that corresponds to the RU. 7. Remove the dust cap from the OSP cable optical adapter and from the patch cordconnector. 8. Clean the patch cord connector (follow patch cord supplier’s recommendations) and thenmate the connector with the appropriate OSP optical fiber termination. 9. Store any excess patch cord slack at the fiber distribution panel. 10. Remove the dust caps from the HU optical ports and from the WDM pigtails that will beconnected to the HU. 11. Clean each pigtail connector (follow the procedures provided with the WDM module) andthen insert the connector into the appropriate optical port on the HU as shown inFigure 3-9 and as diagramed in Figure 3-10.Note: To protect the optical receivers, insert a 15 dB attenuator in each optical path. Afterthe optical power has been measured, the attenuator may be resized or removed.Note: The HU optical adapters are angled to the left. Therefore, pigtails should always berouted to the HU from the left side of the rack. Routing pigtails to the HU from the rightside of the rack may exceed the bend radius limitations for the optical fiber. PORT 1 PORT 2HOST UNIT 1 HOST UNIT 2PORT 1 PORT 218657-AREVERSEPATHREVERSEPATHFORWARDPATHFORWARDPATHWAVELENGTH DIVISIONMULTIPLEXEROSP CABLEOPTICAL FIBERSHOST UNIT 1(BI-DIRECTIONAL FIBERLINK WITH REMOTE UNIT)HOST UNIT 2(BI-DIRECTIONAL FIBERLINK WITH REMOTE UNIT)FIBER DISTRIBUTIONPANEL (FDP)XX123 45 6
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-13© 2003, ADC Telecommunications, Inc.8 CONTROLLER AREA NETWORK CONNECTIONSController Area Network (CAN) interface connections between multiple HU’s are supported bya pair 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 24 HU’s to be connectedtogether (in daisy-chain fashion) and controlled through a single Digivance EMS computer. Aone meter long cable is available (accessory) for CAN connections. Use the followingprocedure to connect CAN interface cables between multiple HU’s: 1. Connect one end of the CAN interface cable (accessory) to either the NET IN or NETOUT 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 CAN interface connection at HU #1. 3. If a third HU will be connected to the network, connect a second 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 CAN interface connection at HU #2. 5. Repeat steps 3 and 4 for each additional HU that is added to the network up to a total of 24HU’s. A diagram of typical CAN interface connections is shown in Figure 3-12. Note: Connect OUT to IN and IN to OUT. If connected to the NET OUT port at HU #1,connect to the NET IN port at HU #2. If connected to the NET IN port at HU #1, connectto the NET OUT port at HU #2. 18658-ARJ-45 CONNECTORDETAIL
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-14© 2003, ADC Telecommunications, Inc.Figure 3-12. Configuring CAN Connections with Multiple Host Units9 EMS COMPUTER CONNECTIONThe service interface connection between the HU and the EMS computer is supported by asingle DB-9 female connector. The service connector provides an RS-232 DTE interface. Athree meter long straight-through RS-232 interface cable is available (accessory) for connectingthe EMS computer to the HU. Use the following procedure to install the service interface cable: 1. Connect one end of the service interface cable (accessory) to the SERVICE port as shownin 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 and configure the specified 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-BCONTROLLER AREA NETWORKINTERFACE CABLESTO NEXT HOST UNIT(NOTE: LAST HOST HAS NOCONNECTION AT NET OUT)18659-A
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-15© 2003, ADC Telecommunications, Inc.10 EXTERNAL ALARM SYSTEM CONNECTIONSThe alarm interface between the HU and an external alarm system is supported by a six-terminalplug (with screw-type terminals) that connects to a receptacle 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. A category 3 or 5 cable 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 3 or 5 cable. 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). 18660-AALARMCONNECTORMAJOR ALARM WIRESMINOR ALARM WIRESALARM CONNECTORDETAILNOCOMNCNO COMNC
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-16© 2003, 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 ± 21 to ± 60 VDC power (nominal ± 24 or ± 48 VDC). The power is fed tothe HU through a screw-down type terminal strip located on the rear side of the unit. Power tothe HU must be supplied through a fuse panel such as the 20 position PowerWorx GMT FusePanel (available separately) and the power must be protected with a 3 Amp GMT fuse. Use thefollowing procedure to install the power 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 a fork 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-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-17© 2003, 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-75-158 • Preliminary Issue A • June 2003 • Section 3: Host Unit InstallationPage 3-18© 2003, ADC Telecommunications, Inc.Blank
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 4: OperationPage 4-1© 2003, ADC Telecommunications, Inc.SECTION 4: OPERATION 1 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 Verify/Download HU and RU System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-62.3 Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-72.4 Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-102.5 Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-112.6 Determine Output Signal Level at STM Antenna Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-122.7 Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-132.8 Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-152.9 Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17_________________________________________________________________________________________________________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 2.0software installed• Straight-through RS-232 DB-9 interface cable (ADC part # 1192835)• Handset• Pencil or pen• Writing padContent Page
ADCP-75-158 • Preliminary Issue A • June 2003 • Section 4: OperationPage 4-2© 2003, 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 power (nominal ± 24 or ± 48 VDC). The DC power provided tothe HU 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 MUTE/NORM/RESET switch on the LPA in the MUTE 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-75-158 • Preliminary Issue A • June 2003 • Section 4: OperationPage 4-3© 2003, ADC Telecommunications, Inc.2.1 Turn-Up ProcedureEach Digivance system should 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 each HU. 3. Determine if the forward path composite input signal level at the Host Unit FORWARD RF INport is appropriate for the required RF output signal level and adjust by installing an externalattenuator if necessary. Refer to Section 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 the EMSVersion 2.0 software can be temporarily connected and used to initially configure thesystem. 5. Place the ON/OFF switch on the HU in the ON position (press I). 6. Make sure the switch on the LPA is in the MUTE position and then place the ON/OFFswitch 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 5 for the troubleshootingprocedures if the indicators do not respond as specified. 8. Start up the EMS Version 2.0 software program. The EMS main window will open asshown in Figure 4-1. Note: The EMS software should be installed on a PC-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-75-125). Note: 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 configuring thesystem for operation until a unique site number and name can be assigned. HOST UNIT SPECTRUM TRANSPORT MODULE LINEAR POWER AMPLIFIERPOWER – Green AC POWER – Green STATUS – Steady greenSTANDBY – Off STANDBY – OffHOST UNIT – Green HOST UNIT – GreenREMOTE UNIT – Green STM – GreenDRIVE – Green, Yellow, or Red PA – GreenPORT 1/PORT 2 – Green VSWR – GreenPORT 1/PORT 2 – Green

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