ADC Telecommunications DISSMRAA Digivance Indoor Coverage Solution System User Manual 75136 CV

ADC Telecommunications Inc Digivance Indoor Coverage Solution System 75136 CV

Contents

manual 4

ADCP-75-136 • Issue 1 • November 2002 Page 53 ©2002, ADC Telecommunications, Inc.3. Connect the DC power cable to the RJ-45 circuit access tool (see Figure 28).4. Using aDC voltmeter, verify that the DC voltage level is between 34 and 48 Vdcbetween any set of positive and negative (+/-) terminals at the RJ-45 circuit access toolas shown in Figure 29. Due to source current limiting at the DHU or DEU, low voltagecan mean excess wire resistance, low source voltage, or excess remote current.Warning:The DRU uses 48 Vdc power. To avoid electric shock or burns, use extreme carewhen working near exposed terminals or uninsulated cables. Be careful not to touch exposedterminals or to cause ashort between terminals when checking voltage levels.16206-BPOSITIVE (+)TEST POINTS1, 3, 5, AND 7 NEGATIVE (-)TEST POINTS2, 4, 6, AND 8Figure 29. RJ-45 Circuit Access Tool Pin/Wire Designations 5. Disconnect RJ-45 circuit access tool from the DRU.6. Use the DC voltmeter to check for open pin connections by checking for voltage betweenthe +/– pairs on the RJ-45 circuit access tool (see Figure 29).7. Disconnect the DC power cable from the RJ-45 circuit access tool.8. Re-connect DC power cable to the DRU.6.5 DHU or DEU Fan Replacement Procedure It is recommended that the fans (catalog #DGVI-100000FAN) be replaced every five years.Replacement of afan requires that the DHU or DEU be turned off for ashort period of time. Thiswill drop all existing calls, cause atemporary loss of service, and generate amajor alarm. Use thefollowing procedure to replace the cooling fans within the DHU or the DEU:1. Before touching the DHU or DEU or handling afan, slip on an Electro-Static Discharge(ESD) wrist strap and connect the ground wire to an earth ground source. Wear the ESDwrist strap while completing each section of the fan installation procedure.Warning:Electronic components can be damaged by static electrical discharge. To preventESD damage, always wear an ESD wrist strap when working on the DHU or DEU and whenhandling electronic components.2. Observe the fans (located on right side of enclosure) to determine which fan requiresreplacement. The faulty fan may be stopped, running at areduced speed, or the fanbearing may be noisy.Note:Because the Mean Time Between Failures (MBTF) is the same for both fans, it may bemore efficient to replace both fans at the same time.FCC ID: F8I-DISSMRAA, Partial User Manual, 4 of 4
ADCP-75-136 • Issue 1 • November 2002 Page 54 ©2002, ADC Telecommunications, Inc.3. Notify the NOC or alarm monitoring system operator that the system is going offline.4. Place the DHU or DEU AC power On/Off switch (see Figure 3 or Figure 7) in the OFFposition (press O).5. Remove the six flat-head screws (requires TORX screwdriver with T15 bit) that secure thefan/grill assembly to the side of the enclosure as shown in Figure 30 and save for reuse.16172-BFigure 30. Fan/Grill Assembly Removal 6. Carefully withdraw the fan/grill assembly from the enclosure until the wiring harness isexposed and the connectors are accessible.7. Lift the small latch on each wiring harness connector (see Figure 30) and carefullyunplug each connector from the circuit board connector.8. Remove the four plastic rivets that secure the faulty fan to the grill by pushing outwardon rivet center post until the rivet can be withdrawn from the grill as shown in Figure 31.9. Remove the faulty fan(s) from the grill and then locate the replacement fan(s).10. Use the rivets removed in step 8to secure the replacement fan to the grill. Orient the fan so thewiring harness is on the top and the arrow on the fan housing faces into the enclosure.11. Connect the two wiring harness connectors to the circuit board connectors.12. Secure the fan/grill assembly to the side of the enclosure (see Figure 30) using the sixflat-head screws removed in step 5.
ADCP-75-136 • Issue 1 • November 2002 Page 55 ©2002, ADC Telecommunications, Inc.16173-BFigure 31. Removing Fan From Grill 13. Place the DHU or DEU AC power On/Off switch in the ON position (press I).14. Verify that the fans run properly following power up.15. Notify the NOC or alarm monitoring system operator that the system is going backonline.6.6 DHU or DEU Modular Optical Transceiver Replacement Procedure The modular optical transceiver should be replaced when testing indicates that the transceiverhas failed. Use the following procedure to replace an optical transceiver in aDHU or DEU: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. Donot look directly into the optical transceiver of any digital unit or exposure to laser radiationmay result. An optical power meter should be used to verify active fibers. Aprotective cap orhood MUST be immediately placed over any radiating transceiver or optical fiber connectorto avoid the potential of dangerous amounts of radiation exposure. This practice also preventsdirt particles from entering the transceiver or connector.1. Put on the IR filtering safety glasses.2. Slip on an Electro-Static Discharge (ESD) wrist strap and connect the ground wire to anearth ground source such as the grounding stud on the DHU or DEU front panel. Wearthe ESD wrist strap while completing the optical transceiver replacement procedure.Warning:Electronic components can be damaged by static electrical discharge. To preventESD damage, always wear an ESD wrist strap when handling electronic components.3. Place the PORT ON/OFF switch for the optical transceiver being replaced in the OFFposition (press O).
ADCP-75-136 • Issue 1 • November 2002 Page 56 ©2002, ADC Telecommunications, Inc.Note:The HOST PORT on the DEU does not have an On/Off switch and can only bedisabled by placing the DEU AC power On/Off switch in the OFF position (press O).Turning off the power to the DEU will create an alarm condition. If the DEU must be turnedoff, inform the NOC or alarm monitoring system operator that an alarm will be reported.4. Disconnect the optical fiber connectors from the optical transceiver and place adust capover each connector.5. Release the optical transceiver from the transceiver socket by pulling outward on therelease lever (if type A) or release tab (if type B) as shown in Figure 32.TYPE ATRANSCEIVERTYPE BTRANSCEIVER17283-ARELEASE TABRELEASELEVERTRANSCEIVER COLOR CODEBLUE = SINGLE-MODE (9 MICRON)BLACK/BEIGE = MULTI-MODE (50 OR 62.5 MICRON)Figure 32. DHU or DEU Optical Transceiver Removal 6. Remove the optical transceiver from the transceiver socket.7. For replacement, select an optical transceiver that corresponds to the type of fiber(single- or multi-mode) used in the installation. The color of the transceiver correspondsto the transceiver fiber type (see Figure 32).8. Remove the optical transceiver from the anti-static packaging and orient for installationas shown in Figure 33.Note:Two types of optical transceivers, type Aand type B, are available. Both typesprovide the same functionality. On the type Aoptical transceiver, the release lever (seeFigure 33) must be closed for installation.
ADCP-75-136 • Issue 1 • November 2002 Page 57 ©2002, ADC Telecommunications, Inc.TXRXDETAIL DRAWINGOF TYPE A AND TYPE BMODULAR OPTICALTRANSCEIVERSTX RXTYPE ATRANSCEIVERTYPE BTRANSCEIVERRELEASELEVERRELEASE TAB17280-AFigure 33. DHU or DEU Optical Transceiver Installation 9. Insert the optical transceiver into the socket until it locks into place.10. Clean the optical fiber connectors and reconnect to the optical transceiver.11. Place the PORT ON/OFF switch for the optical transceiver that was replaced in the ONposition (press I).Note:If the DEU was turned off to replace the HOST PORT optical transceiver, place theDEU AC power On/Off switch in the ON position (press I) and inform the NOC or alarmmonitoring system operator that the alarm has been cleared.12. Verify that the DHU or DEU optical port LED indicators shown normal optical portoperation (refer to Table 7 or 8).6.7 DRU Modular Optical Transceiver Replacement Procedure The modular optical transceiver should be replaced when testing indicates that the transceiverhas failed. Use the following procedure to replace an optical transceiver in aDRU: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. Donot look directly into the optical transceiver of any digital unit or exposure to laser radiationmay result. An optical power meter should be used to verify active fibers. Aprotective cap orhood MUST be immediately placed over any radiating transceiver or optical fiber connectorto avoid the potential of dangerous amounts of radiation exposure. This practice also preventsdirt particles from entering the transceiver or connector.1. Put on the IR filtering safety glasses.2. Slip on an Electro-Static Discharge (ESD) wrist strap and connect the ground wire to anearth ground source. Wear the ESD wrist strap while completing the optical transceiverreplacement procedure.Warning:Electronic components can be damaged by static electrical discharge. To preventESD damage, always wear an ESD wrist strap when handling electronic components.
ADCP-75-136 • Issue 1 • November 2002 Page 58 ©2002, ADC Telecommunications, Inc.3. Disconnect the DC power cable connector from the RJ-45 power jack on the DRU frontpanel.Note:Disconnecting the power from the DRU will create an alarm condition. Inform theNOC or alarm monitoring system operator that the alarm will be reported.4. Disconnect the optical fiber connectors from the optical transceiver and place adust capover each connector.5. Release the optical transceiver from the transceiver socket by pulling outward on therelease lever (if type A) or release tab (if type B) as shown in Figure 34.17285-ATYPE ATRANSCEIVERTYPE BTRANSCEIVERRELEASELEVERRELEASE TABTRANSCEIVER COLOR CODEBLUE = SINGLE-MODE (9 MICRON)BLACK/BEIGE = MULTI-MODE (50 OR 62.5 MICRON)Figure 34. DRU Optical Transceiver Removal 6. Remove the optical transceiver from the transceiver socket.7. For replacement, select an optical transceiver that corresponds to the type of fiber(single- or multi-mode) used in the installation. The color of the transceiver correspondsto the fiber type (see Figure 34).8. Remove the optical transceiver from the anti-static packaging and orient for installationas shown in Figure 35.Note:Two types of optical transceivers, type Aand type B, are available. Both typesprovide the same functionality. On the type Aoptical transceiver, the release lever (seeFigure 34) must be closed for installation.
ADCP-75-136 • Issue 1 • November 2002 Page 59 ©2002, ADC Telecommunications, Inc.TXRXDETAIL DRAWINGOF TYPE A AND TYPE BMODULAR OPTICALTRANSCEIVERSTX RXTYPE ATRANSCEIVERTYPE BTRANSCEIVERRELEASELEVERRELEASE TAB17286-AFigure 35. DRU Optical Transceiver Installation 9. Insert the optical transceiver into the socket until it locks into place.10. Clean the optical fiber connectors and reconnect to the optical transceiver.11. Reconnect the DC power cable plug to the RJ-45 jack on the DRU front panel and informthe NOC or alarm monitoring system operator that the alarm has been cleared.12. Verify that the DRU LED indicator shows normal operation (refer to Table 9).
ADCP-75-136 • Issue 1 • November 2002 Page 60 ©2002, ADC Telecommunications, Inc.7 GENERAL INFORMATION 7.1 Warranty/Software The Product and Software warranty policy and warranty period for all ADC products ispublished in ADC’s Warranty/Software Handbook. Contact the Technical Assistance Center at1-800-366-3891, extension 73475 (in U.S.A. or Canada) or 952-917-3475 (outside U.S.A. andCanada) for warranty or software information or for a copy of the Warranty/SoftwareHandbook.7.2 Software Service Agreement ADC software service agreements for some ADC Products are available at anominal fee. Contactthe Technical Assistance Center at 1-800-366-3891, extension 73475 (in U.S.A. or Canada) or 952-917-3475 (outside U.S.A. and Canada) for software service agreement information.7.3 Repair/Exchange Policy All repairs of ADC Products must be done by ADC or an authorized representative. Anyattempt to repair or modify ADC Products without authorization from ADC voids thewarranty.If amalfunction cannot be resolved by the normal troubleshooting procedures, contact theTechnical Assistance Center at 1-800-366-3891, extension 73475 (in U.S.A. or Canada) or952-917-3475 (outside U.S.A. and Canada). A telephone consultation can sometimes resolve aproblem without the need to repair or replace the ADC Product.If, during atelephone consultation, ADC determines the ADC Product needs repair, ADC willauthorize the return of the affected Product for repair and provide aReturn MaterialAuthorization number and complete shipping instructions. If time is critical, ADC can arrangeto ship the replacement Product immediately. In all cases, the defective Product must becarefully packed and returned to ADC.
ADCP-75-136 • Issue 1 • November 2002 Page 61 ©2002, ADC Telecommunications, Inc.7.4 Repair Charges If the defect and the necessary repairs are covered by the warranty, and the applicable warrantyperiod has not expired, the Buyer’s only payment obligation is to pay the shipping cost toreturn the defective Product. ADC will repair or replace the Product at no charge and pay thereturn shipping charges.Otherwise, ADC will charge apercentage of the current Customer Product price for the repairor NTF (No Trouble Found). If an advance replacement is requested, the full price of a newunit will be charged initially. Upon receipt of the defective Product, ADC will credit Buyerwith 20 percent of full price charged for any Product to be Out-of-Warranty. Products must bereturned within (30) days to be eligible for any advance replacement credit. If repairsnecessitate avisit by an ADC representative, ADC will charge the current price of a field visitplus round trip transportation charges from Minneapolis to the Buyer’s site.7.5 Replacement/Spare Products Replacement parts, including, but not limited to, button caps and lenses, lamps, fuses, andpatch cords, are available from ADC on a special order basis. Contact the TechnicalAssistance Center at 1-800-366-3891, extension 73475 (in U.S.A. or Canada) or 952-917-3475 (outside U.S.A. and Canada) for additional information.Spare products and accessories can be purchased from ADC. Contact Sales Administration at1-800-366-3891, extension 73000 (in U.S.A. or Canada) or 952-938-8080 (outside U.S.A. andCanada) for aprice quote and to place your order.7.6 Returned Material Contact the ADC Product Return Department at 1-800-366-3891, extension 73748 (in U.S.A.or Canada) or 952-917-3748 (outside U.S.A. and Canada) to obtain aReturn MaterialAuthorization number prior to returning an ADC Product.All returned Products must have a Return Material Authorization (RMA) number clearlymarked on the outside of the package. The Return Material Authorization number is valid for90 days from authorization.
ADCP-75-136 • Issue 1 • November 2002 Page 62 7.7 Customer Information and Assistance 13944-JWRITE:ADC TELECOMMUNICATIONS, INCPO BOX 1101,MINNEAPOLIS, MN 55440-1101, USAADC TELECOMMUNICATIONS (S'PORE) PTE. LTD.100 BEACH ROAD, #18-01, SHAW TOWERS.SINGAPORE 189702.ADC EUROPEAN CUSTOMER SERVICE, INCBELGICASTRAAT 2,1930 ZAVENTEM, BELGIUMPHONE:EUROPESales Administration: +32-2-712-65 00Technical Assistance: +32-2-712-65 42EUROPEAN TOLL FREE NUMBERSUK: 0800 960236Spain: 900 983291France: 0800 914032Germany: 0180 2232923U.S.A. OR CANADASales: 1-800-366-3891 Extension 73000Technical Assistance: 1-800-366-3891 Extension 73475ASIA/PACIFICSales Administration: +65-6294-9948Technical Assistance: +65-6393-0739ELSEWHERESales Administration: +1-952-938-8080Technical Assistance: +1-952-917-3475PRODUCT INFORMATION AND TECHNICAL ASSISTANCE:Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice.In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC furtherdisclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer ofliability applies to all products, publications and services during and after the warranty period. This publication may beverified at any time by contacting ADC's Technical Assistance Center. euro_tac@adc.comasiapacific_tac@adc.comconnectivity_tac@adc.com©2002, ADC Telecommunications, Inc.All Rights ReservedPrinted in U.S.A.
iwww.adc.com

Navigation menu