ADC Telecommunications DVLRCSPCS Digivance Long-Range Coverage Solution Single Band User Manual 75126

ADC Telecommunications Inc Digivance Long-Range Coverage Solution Single Band 75126

Contents

manual

ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-6©2002, ADC Telecommunications, Inc.Figure 3-4. WDM Mounting Shelf and WDM Module Installation4 HU MOUNTING PROCEDUREThe HU may be mounted in either a19-inch or 23-inch EIA or WECO equipment rack. BothUS standard and metric machine screws are included for rack mounting the HU. When loadingthe HU in arack, make sure the mechanical loading of the rack is even to avoid ahazardouscondition such as aseverely unbalanced rack. The rack should safety support the combinedweight of all the equipment it holds. In addition, maximum recommended ambient temperaturefor the HU is 50º C(122º F). Allow sufficient air circulation or space between units when theHU is installed in amulti-rack assembly because the operating ambient temperature of the rackenvironment might be greater than room ambient.Use the following procedure to install the HU in the equipment rack:1. The HU is shipped with the mounting brackets installed for 19-inch rack installations. Ifmounting the HU in a19-inch rack, proceed to step 4. If mounting the HU in a23-inchrack, proceed to step 2.2. Remove both mounting brackets from the HU (requires TORX screwdriver with T20 bit)and save screws for reuse.Warning: Wet conditions increase the potential for receiving an electrical shock wheninstalling or using electrically powered equipment. To prevent electrical shock, never install oruse electrical equipment in awet location or during alightning storm.Note: To insure that all optical connectors remain dust-free during installation, leave all dustcaps and dust protectors in place until directed to remove them for connection.16888-A WDM MODULEWDM MOUNTINGSHELFFCC ID: F8I-DVLRCSPCS - User Manual - Part 3
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-7©2002, ADC Telecommunications, Inc.3. Reinstall both mounting brackets so the long side of the bracket is flush with the HU frontpanel as shown in Figure 3-5.Use the screws removed in step 2to re-attach the brackets tothe HU chassis.Figure 3-5. Installing the Mounting Brackets for 23-Inch Rack Installations4. Position the HU in the designated mounting space in the rack (per system design plan) andthen secure the mounting brackets to the rack using the four machine screws provided (use#12-24 or M6 x10 screws, whichever is appropriate) as shown in Figure 3-6.Figure 3-6. HU Rack Mount InstallationNote: Provide aminimum of 3inches (76 mm) of clearance space on both the left andright sides of the HU for air intake and exhaust.16882-AREMOVE AND REINSTALL MOUNTINGBRACKETS AS SHOWN FOR INSTALLATION IN 23-INCH RACKS16883-A
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-8©2002, ADC Telecommunications, Inc.5 CHASSIS GROUND CONNECTIONAstud is provided on the rear side of the chassis for connecting agrounding 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 alength of #18 AWG (1.00 mm) insulated stranded copper wire for use as achassis grounding wire.2. Terminate one end of the wire with aring 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 either two (non-diversity)or three (diversity) type Nfemale connectors mounted on the HU front panel. On non-diversityunits, one connector provides the coaxial cable connection for the forward path (downlink)signal and the other connector provides the coaxial cable connection for the reverse path(uplink) signal. On diversity units, athird connector provides the coaxial cable connection forthe diversity reverse path (uplink) signal.Note: Be sure to maintain reliable grounding. Pay particular attention to ground sourceconnections.16169-A
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-9©2002, ADC Telecommunications, Inc.In many installations, it is usually necessary to install an external attenuator in the forward pathlink between the HU and the BTS. The procedure for determining the value of the externalattenuator is provided in SECTION 4: OPERATION. The HU should be mounted as close aspossible to the BTS to minimize cable losses. Use the following procedure to route the forwardand reverse path coaxial cables and connect them 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 and the diversity reverse path cable (ifthe HU supports diversity) between the HU and the BTS interface (per system design plan)and cut to the required length. Allow sufficient slack for dressing and organizing cables atthe HU and for installing an external attenuator in the forward path link.3. Terminate each cable with atype Nmale 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. If the HU supports diversity, connect the diversity reverse path cable to the REVERSE 2RF OUT connector on the HU front panel (see Figure 3-8).7. Dress and secure cables at the HU.8. Complete all remaining coaxial connections at the BTS interface as specified in the systemdesign plan.16887-ATYPE-N MALECONNECTORFORWARD RF INCONNECTOR(FORWARD PATH)REVERSERF OUT CONNECTOR(REVERSE PATH)REVERSE 2RF OUT CONNECTOR(DIVERSITY REVERSE PATH)
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-10©2002, ADC Telecommunications, Inc.7 OPTICAL CONNECTIONSThe optical interface between the HU and the RU is supported by either two (non-diversity) orthree (diversity) optical ports. Each optical port consists of an SC optical adapter which ismounted on the HU front panel. Port 1provides the optical fiber connection for the forward path(downlink) signal. Port 2provides the optical fiber connection for the reverse path (uplink)signal. Port 3provides the optical fiber connection for the diversity reverse path (uplink) signal.The optical connections are dependent on whether or not aWDM (optional accessory) isinstalled. If the installation does not include aWDM, proceed to Section 7.1 for the opticalconnections procedure. If the installation does include aWDM, proceed to Section 7.2 for theoptical connections procedure.7.1 Optical Connections Without WDMUse the following procedure to connect the optical fibers when aWDM is not installed with theHU:1. Obtain two (non-diversity) or three (diversity) patch cords that are of sufficient length toreach from the HU to the fiber distribution 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 the connector. For diversitysystems, designate and label or tag athird patch cord as the diversity reverse path link.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 connector supplier’s recommendations) and theninsert the connector into the appropriate optical port as shown in Figure 3-9 and asspecified by the following:Port 1 - Forward path patch cordPort 2 - Reverse path patch cordPort 3 - Diversity reverse path patch cord5. Route the patch cords from the HU to the fiber distribution panel.Danger: This equipment uses aClass 1Laser 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. Aprotective 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: 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-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-11©2002, ADC Telecommunications, Inc.Figure 3-9. Fiber Optic Cable Connections To Host Unit6. Identify the OSP cable optical fiber terminations that correspond to the RU.7. Designate one of the OSP fibers as the forward path link and the other as the reversepath link and attach an identification label or tag next to the connector. For diversitysystems, designate and label or tag athird fiber as the diversity reverse path link.8. Remove the dust caps from the OSP cable optical fiber adapters and from the patch cord connectors.9. Clean each patch cord connector (follow connector supplier’s recommendations) and thenmate the connector with the appropriate OSP cable adapter.10. Store any excess patch cord slack at the fiber distribution panel.7.2 Optical Connections With WDMUse the following procedure to connect the optical fibers when aWDM module is installed withthe HU:1. Obtain apatch cord that is of sufficient length to reach from the WDM module to the fiberdistribution panel.2. Remove the dust cap from one of the two optical ports on the WDM module and from thepatch cord connector that will be connected to the WDM module.16893-A
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-12©2002, ADC Telecommunications, Inc.Figure 3-10. Fiber Optic Connections To WDM Module3. Clean the patch cord connector (follow connector supplier’s recommendations) and theninsert the connector into one of the WDM module’s optical ports (port 1or 4).4. Route the patch cord from the WDM to the fiber distribution panel.5. Identify the OSP cable optical fiber termination that corresponds to the RU.6. Remove the dust cap from the OSP cable optical adapter and from the patch cordconnector.7. Clean the patch cord connector (follow connector supplier’s recommendations) and thenmate the connector with the appropriate OSP cable adapter.8. Store any excess patch cord slack at the fiber distribution panel.9. Remove the dust caps from the HU optical ports and from the WDM pigtails that will beconnected to the HU.10. Clean each pigtail connector (follow connector supplier’s recommendations) and theninsert the connector into the appropriate optical port on the HU as shown in Figure 3-9 andas diagramed in Figure 3-10.Note: Each WDM module can support two separate HU’s. The WDM module ports arenumbered from 1through 6as shown in Figure 3-10.Ports 1through 3are used for HU #1and Ports 4through 6are used for HU #2.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 2PORT 3PORT 316892-BREVERSEPATHREVERSEPATHFORWARDPATHFORWARDPATHWAVELENGTH 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 6DIVERSITYREVERSE PATHDIVERSITYREVERSE PATHTO FDPTO FDP
ADCP-75-126 • Issue B • 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 24 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 24HU’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 CONNECTORDETAIL
ADCP-75-126 • Issue B • 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-75-126 • Issue B • 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-BALARMCONNECTORMAJOR ALARM WIRESMINOR ALARM WIRESALARM CONNECTORDETAILNOCOMNCNO COMNC
ADCP-75-126 • Issue B • 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-75-126 • Issue B • 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-75-126 • Issue B • April 2002 • Section 3: Host Unit InstallationPage 3-18©2002, ADC Telecommunications, Inc.Blank
ADCP-75-126 • Issue B • 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 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 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-75-126 • Issue B • 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.

Navigation menu