ADC Telecommunications DLC0802A Digivance 800 MHz 20 Watts System User Manual 75150

ADC Telecommunications Inc Digivance 800 MHz 20 Watts System 75150

manual6

ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: OperationPage 4-12©2003, ADC Telecommunications, Inc.Figure 4-8. HOST RF DisplayFigure 4-9. Host Fwd Att Pop-Up Screen2.6 Determine Output Signal Level at STM Antenna PortThe RF output signal level should be measured at the STM ANTENNA port to verify thatmaximum composite signal level is at the required level. Use the following procedure todetermine the power level:1. Verify that RF ON/OFF switch on the LPA in the OFF position.2. Disconnect the antenna cable from the STM ANTENNA port.3. Connect aspectrum analyzer or RF power meter to the STM ANTENNA port. (Check theinput rating of the test equipment. Insert a30 dB 100 Wattenuator if necessary.)Right-click hereto open Host FwdAtt pop-up screenFCC ID: F8I-DLC0802A User Manual - Part 6
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: OperationPage 4-13©2003, ADC Telecommunications, Inc.4. Place the RF ON/OFF switch on the LPA in the ON position.5. If using aspectrum analyzer, proceed to step 6. If using apower meter, measure thecomposite signal power from the STM and then proceed to step 8.6. Measure the RF level of asingle carrier, such as the control channel, in dBm. Make surethe resolution bandwidth of the spectrum analyzer is 30 kHz.7. Calculate the total composite signal power using the following formula:Ptot = Pc+10Log N – (see Note)Where,Ptot is the total composite power in dBmPcis the power per carrier in dBm as measured in step 6, andNis the total number of channels.8. Record the result measured in step 5or calculated in step 7.9. Place the MUTE/NORM/RESET switch on the LPA in the OFF position.10. Disconnect the spectrum analyzer or RF power meter from the STM ANTENNA port.11. Re-connect the antenna cable to the STM ANTENNA port.2.7 Enter Remote Forward AttenuationThe STM internal forward path attenuator setting is used to reduce the power level of thecomposite output signal level at the STM antenna port. The maximum composite output signallevel at the STM antenna port is set using the Host internal forward attenuator (see Section 2.4).However, component variations may result in the output power at the STM antenna port beingslightly above or below the required power per channel. If this is the case, the STM forwardattenuator may be used in conjunction with the Host forward attenuator to add or removeattenuation to produce the required output signal level. If less power is required, the STMforward attenuator may be used to reduce the power level. The default setting is 0dB. Use thefollowing procedure to change the STM forward attenuation:1. Click on the REMOTE LPA tab. The REMOTE LPA display will open within the DEMSmain window as shown in Figure 4-10.Note: If calculating the composite power for aCDMA system, reduce the initial result by16.23 dBmNote: To comply with Maximum Permissible Exposure (MPE) requirements, themaximum composite output from the antenna cannot exceed 1000 Watts EIRP and theantenna must be permanently installed in afixed location that provides at least 6meters(20 feet) of separation from all persons.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: OperationPage 4-14©2003, ADC Telecommunications, Inc.Figure 4-10. REMOTE LPA Display2. Check the level of the RF output signal (as determined in Section 2.6)against the systemdesign plan specifications. Table 4-1 shows the output signal level required to provide 5watts per channel for systems with 1to 2channels. The maximum output signal levelpermitted for the system is 40.5 dBm (11 Watts).3. Determine if more or less attenuation is required to produce the required output signal level.4. Right-click on the Remote Fwd Att section of the display (see Figure 4-10). The RemoteFwd Att pop-up screen will open as shown in Figure 4-11.5. Enter the required attenuation value and click OK to close the pop-up screen and to makethe changes take effect.Table 4-1. Composite Output Signal LevelsNUMBER OF CHANNELSOUTPUT SIGNAL LEVEL REQUIRED TO PROVIDE 5 WATTS PER CHANNEL 137dBm240dBmWhen there are three or more channels, eachchannel will always be less than 5watts sincethe system has amaximum power output of11 watts (40.5 dBm).Right-click here toopen the Remote FwdAtt pop-up screenRF output signal level
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: OperationPage 4-15©2003, ADC Telecommunications, Inc.Figure 4-11. Remote Fwd Att Pop-Up Screen6. Verify that the appropriate RF output signal level appears in the RF Pwr-VSWR Lowsection (see Figure 4-10). This is primarily areference value and should not take the placeof external test equipment when determining the power level of the composite RF outputsignal. Depending on the modulation type and number of channels, the DEMS softwaremay report apower level that is higher or lower than the actual RF output signal.2.8 Enter Host Reverse AttenuationThe level of the RF signal that should be input to the BTS will vary depending on the type ofBTS, the receive distribution, and the number of channels present. To interface with the BTS,the reverse path signal level must be adjusted to provide the signal level required by the BTS.The HU provides from 0dB of gain to +30 dB of gain in the reverse path. Use the followingprocedure to set the reverse path gain:1. Check the BTS manufacturer’s specifications to determine the composite signal levelrequired at the BTS reverse path input port.2. Determine the overall gain and loss imposed on the signal by the antenna, antenna cable,and by the cables that connect the HU to the BTS.3. Determine the amount of gain required to raise the reverse path signal to the level requiredat the BTS.4. Click on the HOST RF tab. The HOST RF display will open within the DEMS mainwindow as shown in Figure 4-12.Note: To comply with Maximum Permissible Exposure (MPE) requirements, themaximum composite output from the antenna cannot exceed 1000 Watts EIRP and theantenna must be permanently installed in afixed location that provides at least 6meters(20 feet) of separation from all persons.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: OperationPage 4-16©2003, ADC Telecommunications, Inc.Figure 4-12. HOST RF Display5. Right-click on the Host Rev Att section of the display (see Figure 4-12). The Host RevAtt pop-up screen will open as shown in Figure 4-13.Figure 4-13. Host Rev Att Pop-Up Screen6. Enter the attenuation value that will provide the required gain. Refer to Table 4-2 for theattenuation values and the corresponding gain (nominal) values.7. Click OK to close the pop-up screen and to make the changes take effect.8. Click OK to close the pop-up screen and to make the changes take effect.Right-click here toopen the Host Rev Attpop-up screenRight-click here toopen the Host Div RevAtt pop-up screen
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: OperationPage 4-17©2003, ADC Telecommunications, Inc.2.9 Enter Host Forward and Reverse DelayThe forward and reverse delay function allows entry of from 0to 63 µsec of delay in theforward and reverse paths. This feature is used when multiple systems are used to transport thesame channel and there is asignificant difference in the path delay between systems. Additionaldelay may be entered to balance the overall system delay. The amount of delay required must becalculated by the RF engineer and should be included in the system design plan. The defaultsetting is 0µsec. Use the following procedure to change the forward and reverse path delay:1. Click on the HOST RF tab. The HOST RF display will open within the DEMS mainwindow as shown in Figure 4-14.Figure 4-14. HOST RF DisplayTable 4-2. Reverse Path Attenuation Settings and Nominal Gain ProvidedATTENUATION SETTINGGAIN PROVIDEDATTENUATION SETTINGGAIN PROVIDEDATTENUATION SETTINGGAIN PROVIDED0dB →30 dB 11 dB →19 dB 22 dB →8dB1dB 29 dB 12 dB 18 dB 23 dB 7 dB2dB 28 dB 13 dB 17 dB 24 dB 6 dB3dB 27 dB 14 dB 16 dB 25 dB 5 dB4dB 26 dB 15 dB 15 dB 26 dB 4 dB5dB 25 dB 16 dB 14 dB 27 dB 3 dB6dB 24 dB 17 dB 13 dB 28 dB 2 dB7dB 23 dB 18 dB 12 dB 29 dB 1 dB8dB 22 dB 19 dB 11 dB 30 dB 0 dB9dB 21 dB 20 dB 10 dB -- --10 dB 20 dB 21 dB 9 dB -- --Right-click here toopen the Host FwdDelay pop-up screenRight-click here toopen the Host RevDelay pop-up screenRight-click here toopen the Host Div RevDelay pop-up screen
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: OperationPage 4-18©2003, ADC Telecommunications, Inc.2. Right-click on the Host Fwd Delay section of the display (see Figure 4-14). The HostFwd Delay pop-up screen will open as shown in Figure 4-15.3. Obtain the value of the forward delay as specified in the system design plan. The delay isadjustable in 0.1 µsec steps.4. Enter the forward path delay value and click OK to close the pop-up screen and to makethe changes take effect.5. Repeat the process for reverse delay and diversity reverse delay by right-clicking on theappropriate delay section (see Figure 4-14)and then entering the required delay value inthe pop-up screen.6. Click OK to close each pop-up screen and to make the changes take effect.Figure 4-15. Host Fwd Delay Pop-Up Screen
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-1©2003, ADC Telecommunications, Inc.SECTION 5: MAINTENANCE1 SYSTEM MAINTENANCE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12 FAULT DETECTION AND ALARM REPORTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-23 FAULT ISOLATION AND TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-54 TEST PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-104.1 Optical Power Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-104.2 Optical Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-125 MAINTENANCE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-135.1 Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-135.2 Remote Unit Outdoor Cabinet Filters Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-145.3 Host Unit Fan Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-155.4 Spectrum Transport Module Fan Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-165.5 Linear Power Amplifier Fan Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19_________________________________________________________________________________________________________1 SYSTEM MAINTENANCE OVERVIEWThis section explains the Digivance system fault detection and alarm reporting system, providesamethod for isolating and troubleshooting faults, and provides test and maintenanceprocedures. The Digivance system requires minimal regular maintenance to insure continuousand satisfactory operation. Components that require regular replacement, cleaning, or testinginclude the HU and RU fans and the RU outdoor cabinet air-filters.Maintenance also includes diagnosing and correcting service problems as they occur. When analarm is reported, it will be necessary to follow asystematic troubleshooting procedure to locatethe problem. Once the source of the problem is isolated, the appropriate corrective action can betaken to restore service. The only internal components that can be replaced are the cooling fanswhich mount in the HU, RU, and LPA. The failure of any other component within aunit willrequired replacement of that unit.1.1 Tools and MaterialsThe following tools and materials are required in order to complete the procedures in thissection:•ESDwrist strap•IRfiltering safety glasses• Patch cords with SC connectors•15dB in-line SC optical attenuators•Opticalpower meter (1550 and 1310 nm)•TORXscrewdriver (with T10 bit)
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-2©2003, ADC Telecommunications, Inc.2 FAULT DETECTION AND ALARM REPORTINGThe Digivance system on-board embedded software detects various unit and system faults andreports them as either Major or Minor alarms. AMajor alarm indicates that the system hasfailed in away that directly affects RF transport performance. This usually means that somecalls or perhaps all calls cannot be made over the system. AMinor alarm means that systemperformance is not affected or in some cases, that the performance may no longer be optimal.Four types of faults cause aminor alarm to be reported: overtemperature, fan failure, diversitypath failure, and an external minor fault (user defined fault). All other faults are reported as aMajor alarm.Reporting of Major and Minor alarms is accomplished through the HU alarm contacts, the unitfront panel LED’s, the DEMS software Graphical User Interface (GUI), and the NetworkOperations Center -Network Element Manager (NOC/NEM) interface.The HU is equipped with aset of both normally open (NO) and normally closed (NC) alarmcontacts which are used to report both Major and Minor alarms to an external alarm system. Thealarm contacts summarize the inputs so that any Major or Minor alarm will trigger an alarmreport to the external alarm system.The HU, STM, and LPA front panel LED indicators are used to report specific alarms which arereflected in the LED colors: Green, Red, Yellow, and Off. Adescription of the Host Unit, LinearPower Amplifier, and Spectrum Transport Module LED indicators is provided respectively inTable 5-1,Table 5-2,and Table 5-3.The DEMS software GUI provides both asummary and amore detailed list of alarminformation that includes unit and module level faults, circuit faults, and measured value faultssuch as voltages, RF power, and temperature. Asummary showing alist of all systems and theircurrent alarm status is presented through the Alarm OverView display. Adetailed list of alarminformation is presented through the HOST alarm display and the REMOTE alarm display. Allthe inputs that the system reports as alarms are shown in the HOST and REMOTE alarmdisplays.The NOC/NEM interface provides the same summary and detailed list of alarm information asthe DEMS software GUI but in an ASCII text string format. Sending the command GETALARM SUMMARY produces alist of all systems and their current alarm status. Sending thecommand GET ALARM ALL for aspecific system will produce adetailed list of alarminformation for the specified system.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-3©2003, ADC Telecommunications, Inc.Table 5-1. Host Unit LED IndicatorsINDICATOR COLOR DESCRIPTIONPOWERGreenOffIndicates if the HU is powered or un-powered.The DC power source is on.The DC power source is off.STANDBYGreen (blinking)Yellow (blinking)Red (blinking)OffIndicates if the system is in the standby, normal, test, orprogram load mode.The HU is in the standby mode.The HU is in the program load mode.The HU is in the test mode.The HU is in the normal mode.HOST UNITGreenYellowRedIndicates if the HU is normal, over temperature, or if afault is detected.The HU is normal.High temperature detected in HU.Fault detected by the HU or HU/RU band mismatch.REMOTE UNITGreenYellowRedIndicates if an alarm is detected at the RU.No alarms detected at the RU.Aminor alarm is detected at the RU.Amajor alarm is detected at the RU.DRIVEGreenYellowRedIndicates if the forward path RF signal level is normal,above overdrive threshold, or below underdrive threshold.The RF signal level is normalThe RF signal level is below the underdrive threshold.The RF signal level is above the overdrive threshold.PORT 1/PORT 2GreenRedIndicates if the reverse path optical signal received fromthe RU is normal or if errors are detected.The reverse path optical signal is normal.Excessive errors are detected in the reverse path optical signalor the HU can’t communicate with the STM.Table 5-2. Linear Power Amplifier LED IndicatorINDICATOR COLOR DESCRIPTIONSTATUSGreen (blinking)GreenYellow (blinking)YellowRedIndicates the operational state of the LPA and whether ornot any faults are detected.The LPA is in the normal state.The LPA is in aforced shutdown state, no faults detected.The LPA is in the normal state, minor fault detected.The LPA is initializing.The LPA is in an internal shutdown state, major fault detected.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-4©2003, ADC Telecommunications, Inc.Table 5-3. Spectrum Transport Module LED IndicatorsINDICATOR COLOR DESCRIPTIONAC POWERGreenRedIndicates if the STM is powered by the AC power source orthe back-up battery system.The STM is powered by the AC power source.The STM is powered by the back-up battery system.STANDBYGreen (blinking)Yellow (blinking)Red (blinking)OffIndicates if the system is in the standby, normal, test, orprogram load mode.The STM is in the standby mode.The STM is in the program load mode.The STM is in the test mode.The STM is in the normal mode.HOST UNITGreenYellowRedIndicates if an alarm is detected at the HU.No alarms detected at the HU.Aminor alarm is detected at the HU.Amajor alarm is detected at the HU.STMGreenYellowRedIndicates if the STM is normal, over temperature, or if afault is detected.The STM is normal.The STM is over temperature due to high ambient temperatureor the fan has failed.Fault detected by the STM or HU/RU band mismatch.PAGreenYellowRedIndicates if the LPA is normal, over temperature, has afanfailure, or is faulty.The LPA is normal.The LPA is over temperature or the fan has failed.Internal fault detected in the LPA.VSWRGreenRedIndicates if the forward path VSWR is above or below thethreshold.The VSWR is below the threshold.The VSWR is above the threshold.PORT 1/PORT 2GreenRedIndicates if the forward path optical signal received fromthe HU is normal or if errors are detected.The forward path optical signal is normal.Excessive errors are detected in the forward path optical signalor the STM can’t communicate with the HU.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-5©2003, ADC Telecommunications, Inc.3 FAULT ISOLATION AND TROUBLESHOOTINGAlarm information may be accessed and faults isolated using the information provided by theunit front panel LED indicators, the DEMS software GUI alarm displays, or the NOC-EMSinterface. Because the alarm information provided by the DEMS GUI and the NOC-EMSinterface is very detailed, refer to Table 5-4,Table 5-5,or Table 5-6 to determine the unit LEDindicator (Host Unit, Remote Unit, or LPA) that corresponds to the indicated alarm. Then referto Table 5-7,Table 5-8,or Table 5-9 to identify the problem, check out the possible causes, andtake corrective action.Table 5-4. Host Unit Major and Minor AlarmsMAJOR ALARM LED INDICATOR MAJOR ALARM LED INDICATOROperating Mode (Does not apply) Fwd Synth Lock HOST UNIT8Volt HOST UNIT RF Mute (Does not apply)Pri No Light (Not implemented) Major Extern Output (Does not apply)Pri Fwd Mux Lock HOST UNIT Companion Lost PORT 1/PORT 2Pri Rev Synth Lock HOST UNIT MINOR ALARMS LED INDICATOROverdrive DRIVE Temperature HOST UNITUnit Mismatch HOST UNIT Sec No Light (Does not apply)Link Alarm (Does not apply) Sec Errors (Does not apply)3.8 Volt HOST UNIT Sec Rev Synth Lock HOST UNITPri Laser Fail HOST UNIT Underdrive DRIVEPri Errors PORT 1/PORT 2MinorExtern Output (Does not apply)Table 5-5. Remote Unit Major AlarmsMAJOR ALARM LED INDICATOR MAJOR ALARM LED INDICATOROperating Mode (Does not apply) Battery Vo l t a g e ( D o es not apply)3.8 Volt STM Pri Laser Fail STMPri Errors PORT 1/PORT 2FwdSynth Lock STMReference Synth Lock STM System VSWR VSWRLPA DC Fail PA LPA Low Power PALPA VSWR PA Unit Mismatch STMLink Alarm (Does not apply) Converter STMAC Fail AC POWER Pri No Light PORT 1/PORT 28Volt STM Pri Rev Synth Lock STMPri Rev Mux Lock STM LPA Detect PARF Mute (Does not apply) LPA Over Power PALPA Loop Failed PA Companion Lost PORT 1/PORT 2Major Extern Alarm Inp (Does not apply) – –
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-6©2003, ADC Telecommunications, Inc.During normal HU operation, all LED’s should be green except the STANDBY LED whichshould be Off.When aMinor alarm occurs, one or more of the LED’s will turn yellow.When aMajor alarm occurs, one or more of the LED’s will turn red.It is recommended that whenever there are multiple alarms, the optical alarms should bechecked and cleared first. Because the host and remote units function as asystem, afault in thefiber optic link will cause various unit alarms to be reported.Table 5-6. Remote Unit Minor AlarmsMINOR ALARM LED INDICATOR MINOR ALARM LED INDICATORTemperature STM Sec Laser Fail (Does not apply)Sec Rev Mux Lock (Does not apply) Sec Rev Synth Lock (Does not apply)Rev Path Level (Does not apply) LPA Disable STATUS (LPA)LPA Fan PA LPA High Temp PAMinor Extern Alarm Inp (Does not apply) RF Out Ve ry Low (Does not apply)Table 5-7. Host Unit Fault Isolation and TroubleshootingLED: POWER Color: Off Alarm Type: MajorPROBLEM: The HU is not powered.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The fuse is open or removed from the fusepanel. 1. Replace or reinstall fuse at fuse panel.LED: STANDBY Color: Green (blinking) or Yellow (blinking)Alarm Type: NonePROBLEM: The HU is out of service.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The HU is in the standby (green) or programload (yellow) mode. 1. Use DEMS to place the HU in the normal (off)mode.LED: HOST UNIT Color: Yellow Alarm Type: MinorPROBLEM: The HU is overheating.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Air intake or exhaust opening to HU chassisis blocked2. Ambient temperature >> 50º C/122º F.3. Faulty fan.1. Remove cause of air-flow blockage.2. Reduce ambient temperature.3. Replace HU fan (See Section 5.3).LED: HOST UNIT Color: Red Alarm Type: MajorPROBLEM: A major alarm fault detected by HU.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Fiber optic link fault.2. HU and STM band mismatch.3. The HU has failed.1. Follow procedure specified when the PORT 1/PORT 2LED is red.2. Replace HU or STM with correct unit.3. Replace the HU.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-7©2003, ADC Telecommunications, Inc.LED: REMOTE UNIT Color: Yellow Alarm Type: MinorPROBLEM: A minor alarm fault is detected at the RU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The STM or LPA is overheating. 1. Check RU LED indicators and refer to Table 5-8LED: REMOTE UNIT Color: Red Alarm Type: MajorPROBLEM: A major alarm fault is detected at the RU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Fiber optic link fault.2. AC power failure at RU.3. High VSWR.4. The RU cabinet door is open or the STM orLPA has failed.1. Check RU LED indicators and refer to Table 5-8.2. Check RU LED indicators and refer to Table 5-8.3. Check RU LED indicators and refer to Table 5-8.4. Check RU LED indicators and refer to Table 5-8.LED: DRIVE Color: Yellow Alarm Type: MinorPROBLEM: The RF input signal level is below the underdrive threshold. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Faulty BTS or faulty coaxial connectionbetween the HU and the BTS.2. Incorrect attenuation in forward path RF coax-ial link.1. Check forward path signal level at the HU.2. Check Host Forward Attenuator setting andadjust if attenuation is too high.LED: DRIVE Color: Red Alarm Type: NonePROBLEM: The RF signal is above the overdrive threshold.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Composite output signal level from BTS is toohigh.2. Incorrect attenuation in forward path RFcoaxial link.1. Check BTS composite output signal level andadjust if too high.2. Check Forward Attenuator setting and adjust ifattenuation is too low.LED: PORT 1/PORT 2 Color: Red Alarm Type: MajorPROBLEM: Excessive errors are detected in the reverse path optical signal.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Faulty reverse path optical fiber.2. Faulty optical transmit port at the STM orfaulty optical receive port at the HU1. Test optical fiber. Clean connector if dirty. Repairor replace optical fiber if faulty. (See Section 4.1).2. Test optical ports. Replace HU or STM if port isfaulty (See Section 4.2).Table 5-7. Host Unit Fault Isolation and Troubleshooting, continued
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-8©2003, ADC Telecommunications, Inc.During normal STM operation, all LED’s should be green except the STANDBY LED whichshould be Off.When aMinor alarm occurs, one or more of the LED’s will turn yellow.When aMajor alarm occurs, one or more of the LED’s will turn red.It is recommended that whenever there are multiple alarms, the optical alarms should bechecked and cleared first. Because the host and remote units function as asystem, afault in thefiber optic link will cause various unit alarms to be reported.Table 5-8. STM Fault Isolation and TroubleshootingLED: AC POWER Color: Off Alarm Type: MajorPROBLEM: The RU is powered by the battery back-up system.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The AC power system circuit breaker is openor the AC power has failed.2. The STM has failed.1. Check the AC power system, repair as needed,and reset circuit breaker.2. Replace the STM.LED: STANDBY Color: Green (blinking) or Yellow (blinking)Alarm Type: NonePROBLEM: The RU is out of service.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The RU is in the standby (green) or programload (yellow) mode. 1. Use DEMS to place the RU in the normal (off)mode.LED: HOST UNIT Color: Yellow Alarm Type: MinorProblem: A minor alarm fault is detected at the HU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The HU is overheating. 1. Check HU LED indicators and refer to Table 5-7LED: HOST UNIT Color: Red Alarm Type: MajorPROBLEM: A major alarm fault is detected at the HU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Fiber optic link fault.2. The HU is not powered.3. The HU has failed.1. Check HU LED indicators and refer to Table 5-7.2. Check HU LED indicators and refer to Table 5-7.3. Check HU LED indicators and refer to Table 5-7.LED: STM Color: Yellow Alarm: MinorPROBLEM: The STM is overheating.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Air intake or exhaust opening to the remoteunit cabinet is blocked2. Ambient temperature >> 50º C/122º F.3. Faulty fan.1. Remove cause of air-flow blockage.2. Reduce ambient temperature.3. Replace STM fan (See Section 5.4).
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-9©2003, ADC Telecommunications, Inc.LED: STM Color: Red Alarm Type: MajorPROBLEM: A major alarm fault detected by the STM.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Fiber optic link fault.2. The HU is not powered.3. HU and STM band mismatch.4. The STM has failed.1. Follow procedure specified when the PORT 1/PORT 2LED is red.2. Check HU LED indicators and refer to Table 5-73. Replace HU or STM with correct unit.4. Replace the STM.LED: PA Color: Yellow Alarm Type: MinorPROBLEM: The LPA is overheating. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Air intake or exhaust opening to the remoteunit cabinet is blocked2. Ambient temperature >50º C/122º F.3. Faulty fan.1. Remove cause of air-flow blockage.2. Reduce ambient temperature.3. Replace LPA fan (See Section 5.5).LED: PA Color: Red Alarm Type: MajorPROBLEM: A major alarm fault is detected by the LPA.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The STM to LPA connecting cable is faulty.2. The LPA has failed.3. The STM has failed.1. Inspect cable and repair or replace if faulty.2. Check LPA and refer to Table 5-9.Replace theLPA if it is faulty.3. Replace the STM.LED: VSWR Color: Red Alarm Type: MajorPROBLEM: The forward path VSWR is above the threshold. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Faulty antenna or antenna system.2. Faulty antenna cable.3. The STM has failed.1. Check the antenna circuit for shorts or opens(including lightning protector).2. Check the antenna cable for faulty connections.3. Replace the STM.LED: PORT 1/PORT 2 Color: Red Alarm Type: MajorPROBLEM: Excessive errors are detected in the forward path optical signal.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. Faulty forward path optical fiber. 1. Test optical fiber. Clean connector if dirty. Repairor replace optical fiber if faulty. (See Section 4.1).Table 5-8. STM Fault Isolation and Troubleshooting, continued
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-10©2003, ADC Telecommunications, Inc.During normal LPA operation, the STATUS LED should be blinking green (normal operation)or blinking yellow (minor fault).4 TEST PROCEDURESThis section provides procedures for common troubleshooting and maintenance tests. Refer tothese procedures as needed when specified in the Fault Isolation and Troubleshooting tables inSection 3.4.1 Optical Power TestAbreak in an optical fiber or afault with the optical connector will interrupt communicationsbetween linked components or generate excessive errors. Use the following procedure to isolateaproblem with an optical fiber or connector.Table 5-9. LPA Fault Isolation and TroubleshootingLED: STATUS Color: Green Alarm Type: NonePROBLEM: The LPA is in the forced shutdown state.POSSIBLE CAUSES1.The MUTE/NORM/RESET switch is in theMUTE position or the LPA was set in the dis-able mode through the DEMS computer.1.Place MUTE/NORM/RESET switch in theNORM position or use DEMS to enable the LPA.LED: STATUS Color: Yellow (blinking) Alarm Type: MinorPROBLEM: The LPA detects a minor fault. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The LPA fan has failed. 1. Replace LPA fan. (see Section 5.5)LED: STATUS Color: Red Alarm Type: MajorPROBLEM: The LPA is in a forced shutdown state.POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS1. The STM to LPA connecting cable is faulty.2. The LPA fan has failed allowing overheating.3. Air intake or exhaust opening to the remoteunit outdoor cabinet is blocked.4. Ambient temperature >50º C/122º F.5. The LPA is faulty.1. Inspect cable and repair or replace if faulty.2. Replace LPA fan. (see Section 5.5)3. Remove cause of air-flow blockage.4. Reduce ambient temperature5. Replace LPA.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.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-11©2003, ADC Telecommunications, Inc.1. Put on the IR filtering safety glasses.2. Notify the NOC or alarm monitoring system operator that the system is going offline.3. At the HU and at the STM, place the On/Off switches in the OFF position (press O).4. Disconnect the optical fiber connectors for the fiber to be tested at the HU and the STM.5. Inspect the optical connectors. Verify that connectors are clean and that no scratches orimperfections are visible on the fiber end. Clean and polish the optical connectors if necessary.6. Connect the optical power meter to the output (receiver) end of the optical fiber. If anattenuator was included in the fiber link, make sure the attenuator is installed.7. Connect the input (transmitter) end of the optical fiber to the far end HU or STM.8. At the far end HU or STM, place the On/Off switch in the ON position (press I).9. Using the far end HU or STM as an optical light source, measure the optical power at thenear end of the optical fiber. The power level of the optical input signal at the HU or STMmust fall within the following ranges:STM Forward Path Input Signal (Port 1): –15 to –25 dBm (with attenuator installed)HU Reverse Path Input Signal (Port 2): –15 to –23 dBm (with attenuator installed)If the power level of the received optical signal is within the specified range, the opticalfiber and the far end unit are good. If the power level of the received signal is not withthe specified range, either the optical fiber is faulty or the far end unit optical transmitteris faulty. Continue with test procedure to isolate the problem10. At the far end HU or STM, place the On/Off switch in the OFF position (press O).11. Disconnect the optical power meter from the near end of the optical fiber.12. Connect the optical power meter to the far end HU (Port 1) or STM (Port 2).13. At the far end HU or STM, place the On/Off switch in the ON position (press I).14. Measure the optical output power of the far end HU or STM. The power level of theoptical output signal from the HU or STM must meet the following specification:HU Forward Path Output Signal (Port 1): 0 + 1dBmSTM Reverse Path Output Signal (Ports 2and 3): +2 +1dBmIf the power level of the optical output signal is within specifications, the optical fiber isfaulty. If the power level of the optical signal is not within specifications, the far endHU or STM optical transmitter is faulty.15. At the far end HU or STM, place the On/Off switch in the OFF position (press O).16. Disconnect the optical power meter from the far end HU or STM.17. Reconnect the optical fibers at the HU and the STM.Note: Turning off the HU and STM disables the respective lasers which is necessary inorder to safely inspect and clean the optical connectors.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-12©2003, ADC Telecommunications, Inc.18. Repeat steps 3through 17 for each optical fiber that requires testing.19. When ready to put the system back into service, place the On/Off switch in the ONposition (press I)at both the HU and STM.20. Notify the NOC or alarm monitoring service that the system is going back online.4.2 Optical Loopback TestThe following procedures provide tests to determine if an optical port fault exists with the HostUnit or with the STM.4.2.1 Host Loopback Test1. Put on the IR filtering safety glasses.2. Notify the NOC or alarm monitoring system operator that the system is going offline.3. At the HU, place the On/Off switch in the OFF position (press O).4. Disconnect the optical fiber connectors from the PORT 1and PORT 2optical ports andplace adust cap over each connector.5. Plug a15 dB in-line optical attenuator into the PORT 1optical port.6. Connect apatch cord between the optical attenuator and the PORT 2optical port.7. Place the On/Off switch in the ON position (press I)and observe the PORT 1/PORT 2LED indicator.8. The PORT 1/PORT 2LED indicator will turn either red or green. If the LED turns red,either the PORT 1optical transmitter or the PORT 2receiver is faulty. If the LED turnsgreen, both PORT 1and PORT 2optical ports are good.9. Place the On/Off switch in the OFF position (press O).10. Remove the dust caps from the optical fiber connectors.11. Clean each connector (follow connector supplier’s recommendations) and then insert eachconnector into the appropriate optical port.12. When ready to put the unit back into service, place the On/Off switch in the ON position(press I).13. Notify the NOC or alarm monitoring service that the system is going back online.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.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-13©2003, ADC Telecommunications, Inc.4.2.2 STM Loopback Test1. Put on the IR filtering safety glasses.2. Notify the NOC or alarm monitoring system operator that the system is going offline.3. At the STM, place the On/Off switch in the OFF position (press O).4. Disconnect the optical fiber connectors from the PORT 1and PORT 2optical ports andplace adust cap over each connector.5. Plug a15 dB in-line optical attenuator into the PORT 1optical port.6. Connect apatch cord between the optical attenuator and the PORT 2optical port.7. Place the On/Off switch in the ON position (press I)and observe the PORT 1/PORT2 LEDindicator.8. The PORT 1/PORT 2LED indicator will turn either red or green. If the LED turns red,either the PORT 1receiver is faulty or the PORT 2transmitter is faulty. If the LED turnsgreen, both PORT 1and PORT 2optical ports are good.9. Place the On/Off switch in the OFF position (press O).10. Remove the dust caps from the optical fiber connectors.11. Clean each connector (follow connector supplier’s recommendations) and then insert eachconnector into the appropriate optical port.12. When ready to put the unit back into service, place the On/Off switch in the ON position(press I).13. Notify the NOC or alarm monitoring service that the system is going back online.5 MAINTENANCE PROCEDURESThis section specifies the system maintenance requirements and provides the procedures for therequired maintenance tasks. Refer to these procedures as needed when specified in theScheduled Maintenance table.5.1 Scheduled MaintenanceTable 5-10 lists the items that require regular maintenance and the recommended maintenanceinterval. Refer to the section specified in the table for the required maintenance or testprocedure.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-14©2003, ADC Telecommunications, Inc.5.2 Remote Unit Outdoor Cabinet Filters Cleaning ProcedureThe RU outdoor cabinet filters clean the RU intake air before it enters the cabinet. The filtersshould be cleaned approximately once per year and more often in extremely dirty environments.If the cabinet temperature gradually rises over along period of time and there are no fanfailures, it is possible that the filter is dirty and requires cleaning. Use the following procedureto clean the RU outdoor cabinet filters:1. Open the RU outdoor cabinet door as shown in Figure 5-1.2. TBD3. TBD4. TBD5. TBDFigure 5-1. Air Filter Removal and ReplacementTable 5-10. Scheduled MaintenanceINTERVAL ITEM REQUIREMENT12 months RU outdoor cabinetfilters* Remove and clean the RU outdoor cabinet filters. Refer toSection 5.2 for the required procedure.60 months HU FansSTM FanLPA FanRemove and replace the cooling fans in the HU, STM, andLPA. Refer to specified section for the required procedures:HU see Section 5.3,Section 5.4,and LPA see Section 5.5.*Though it is not recommended that the RU be installed in asalt-air environment, if done so, clean thecabinet filter on amonthly basis instead of on a12 month basis. In addition, the RU should beinspected for corrosion due to salt, particularly near the fans and around the connectors. The MTBF ofthe RU may be impacted if the RU is exposed to salt-air.Drawing not available
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-15©2003, ADC Telecommunications, Inc.5.3 Host Unit Fan Replacement ProcedureThe HU is equipped with two cooling fans which are located on the right side of the HUenclosure. The cooling fans blow cool air into the enclosure. Heated air is exhausted through thevent openings on the left side of the enclosure. Replacement of the fans requires that the HU beturned off for ashort period of time. Use the following procedure to remove and replace the HUcooling fans:1. Before working on the HU or handling afan, slip on an Electro-Static Discharge (ESD)wrist strap and connect the ground wire to an earth ground source. Wear the ESD wriststrap while completing each section of the fan installation procedure.2. Notify the NOC or alarm monitoring system operator that the system is going offline.3. Place the HU On/Off switch in the OFF position (press O).4. Remove the six flat-head screws (requires TORX screwdriver with T10 bit) that secure thefan/grill assembly to the right side of the HU enclosure as shown in Figure 5-2.Savescrews for reuse.Figure 5-2. Host Unit Fan/Grill Assembly Removal5. Carefully withdraw the fan/grill assembly from the enclosure until the wiring harness isexposed and the connectors are accessible.6. Lift the small latch on each wiring harness connector and carefully unplug each connectorfrom the circuit board connector.7. Remove the plastic rivets that secure each fan to the grill by pushing outward on the rivetcenter post until the rivet can be withdrawn from the grill as shown in Figure 5-3.Warning: Electronic components can be damaged by static electrical discharge. To preventESD damage, always wear an ESD wrist strap when working on the HU, STM, or LPA andwhen handling electronic components.16986-A
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-16©2003, ADC Telecommunications, Inc.Figure 5-3. Removing Host Unit Fans From Grill8. Remove both fans from the grill9. Use the rivets removed in step 7to secure the replacement fans to the grill. Orient each fanso the wiring harness is on the top and the arrow on the fan points into the enclosure.10. Connect the two wiring harness connectors to the circuit board connectors.11. Secure the fan/grill assembly to the side of the enclosure (see Figure 5-2)using the sixflat-head screws removed in step 4.12. Place the HU On/Off switch in the ON position (press I).13. Verify that the fans run properly following power-up.14. Notify the NOC or alarm monitoring system operator that the system is going back online.5.4 Spectrum Transport Module Fan Replacement ProcedureThe STM is equipped with arear cooling fan that exhausts heated air from the STM enclosure.Cool air enters the STM through vent openings on the side of the enclosure. Replacement of thefan requires that the STM be turned off for ashort period of time and that the STM be removedfrom the cabinet. Use the following procedure to remove and replace the STM cooling fan.1. Before working on the STM or handling afan, slip on an Electro-Static Discharge (ESD)wrist strap and connect the ground wire to an earth ground source. Wear the ESD wriststrap while completing each section of the fan installation procedure.2. Notify the NOC or alarm monitoring system operator that the system is going offline.3. Place the STM On/Off switch in the OFF position (press O).4. Disconnect the various power, fiber optic, service, alarm wiring, and coaxial cableconnectors from the STM front panel as specified in Figure 5-4.Warning: Electronic components can be damaged by static electrical discharge. To preventESD damage, always wear an ESD wrist strap when working on the HU, STM, or LPA andwhen handling electronic components.16173-B
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-17©2003, ADC Telecommunications, Inc.Figure 5-4. Spectrum Transport Module Cable Connections5. Loosen the captive screws that secure the STM to the RU cabinet mounting shelf andcarefully withdraw the STM from the cabinet.6. Remove the four pan-head screws (requires TORX screwdriver with T10 bit) that securethe fan/grill assembly to rear side of the STM enclosure as shown in Figure 5-5.Savescrews for reuse.Figure 5-5. STM Fan/Grill Assembly Removal18661-ADisconnect ACpower connector Disconnect alarmconnectorDisconnect antennaconnector12345Disconnect optical fiberconnectors. Place a dustcap over each cableconnector and port adapter.Disconnect serviceconnector (if present)16992-A
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-18©2003, ADC Telecommunications, Inc.7. Carefully withdraw the fan/grill assembly from the enclosure until the wiring harness isexposed and the connector is accessible.8. Lift the small latch on the wiring harness connector and carefully unplug the connectorfrom the circuit board connector.9. Remove the plastic rivets that secure the fan to the mounting plate and grill by pushingoutward on the rivet center post until the rivet can be withdrawn as shown in Figure 5-6.10. Separate fan from the mounting plate and grill11. Use the rivets removed in step 9to secure the replacement fan to the mounting plate andgrill. Orient the fan so the wiring harness is on the top and the arrow on the fan pointsaway from the enclosure. Make certain the rubber grommets are left in place on themounting plate.12. Connect the wiring harness connector to the circuit board connector.13. Secure the fan/grill assembly to the back of the enclosure (see Figure 5-5)using the fourpan-head screws removed in step 6. Do not overtighten the screws. The screw threads canbe easily stripped if too much torque is used to tighten the screws.Figure 5-6. Removing STM Fan From Mounting Plate and Grill14. Re-install the STM in the cabinet and then re-connect all cables in the reverse order inwhich they were disconnected (see Figure 5-4).15. Place the STM On/Off switch in the ON position (press I).16. Verify that the fan runs properly following power-up.17. Notify the NOC or alarm monitoring system operator that the system is going back online.16993-A
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-19©2003, ADC Telecommunications, Inc.5.5 Linear Power Amplifier Fan Replacement ProcedureThe LPA is equipped with afront and cooling fan. The front fan draws cool air into the LPAenclosure. Replacement of the fans requires that the STM be turned off for ashort period oftime and that the LPA be removed from the cabinet. Use the following procedure to remove andreplace the LPA cooling fans.1. Before working on the LPA or handling afan, slip on an Electro-Static Discharge (ESD)wrist strap and connect the ground wire to an earth ground source. Wear the ESD wriststrap while completing each section of the fan installation procedure.2. Notify the NOC or alarm monitoring system operator that the system is going offline.3. Place the STM On/Off switch in the OFF position (press O).4. Loosen the captive screws that secure the LPA to the RU cabinet/mounting shelf andcarefully withdraw the LPA from the cabinet.5. Pull out the four retainers that secure the front fan to the LPA as shown in Figure 5-7 andsame for reuse.Figure 5-7. LPA Fan Removal and Replacement6. Carefully withdraw the fan assembly from the LPA until the wiring harness is exposed andthe RJ-45 wiring harness connector is accessible.7. Disconnect the fan wiring harness connector from the LPA and lift the fan assembly awayfrom the LPA.8. Place asmall amount of anti-corrosion gel on the connector of the replacement fanassembly.9. Orient the fan assembly so the air-flow arrow points into the LPA.Warning: Electronic components can be damaged by static electrical discharge. To preventESD damage, always wear an ESD wrist strap when working on the HU, STM, or LPA andwhen handling electronic components.Drawing not available
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 5: MaintenancePage 5-20©2003, ADC Telecommunications, Inc.10. Connect the fan assembly wiring harness connector to the LPA internal connector.11. Secure the fan assembly to the LPA using the four retainers removed in step 5.12. Place the STM On/Off switch in the ON position (press I)and verify that the fan operatesproperly. The fan should draw air into the LPA.13. Notify the NOC or alarm monitoring system operator that the system is going back online.
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 6: General InformationPage 6-1©2003, ADC Telecommunications, Inc.SECTION 6: GENERAL INFORMATION1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12 SOFTWARE SERVICE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14 REPAIR CHARGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25 REPLACEMENT/SPARE PRODUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-26 RETURNED MATERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-27 CUSTOMER INFORMATION AND ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3_________________________________________________________________________________________________________1 WARRANTY/SOFTWAREThe 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 acopy of the Warranty/SoftwareHandbook.2 SOFTWARE SERVICE AGREEMENTADC software service agreements for some ADC Products are available at anominal fee.Contact the Technical Assistance Center at 1-800-366-3891, extension 73475 (in U.S.A. orCanada) or 952-917-3475 (outside U.S.A. and Canada) for software service agreementinformation.3 REPAIR/EXCHANGE POLICYAll repairs of ADC Products must be done by ADC or an authorized representative. Anyattempt to repair or modify ADC Products without written authorization from ADC voids thewarranty.If amalfunction cannot be resolved by the normal troubleshooting procedures, call 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). Atelephone 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 return shipping instructions. If time is critical, ADC canarrange to ship the replacement Product immediately. In all cases, the defective Product must becarefully packaged and returned to ADC.Content Page
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 6: General InformationPage 6-2©2003, ADC Telecommunications, Inc.4 REPAIR CHARGESIf 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 to returnthe defective Product. ADC will repair or replace the Product at no charge and pay the returnshipping 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 anew unitwill be charged initially. Upon receipt of the defective Product, ADC will credit Buyer with 20percent of full price charged for any Product to be Out-of-Warranty. Products must be returnedwithin thirty (30) days to be eligible for any advance replacement credit. If repairs necessitate avisit by an ADC representative, ADC will charge the current price of afield visit plus round triptransportation charges from Minneapolis to the Buyer’s site.5 REPLACEMENT/SPARE PRODUCTSReplacement parts, including, but not limited to, button caps and lenses, lamps, fuses, and patchcords, are available from ADC on aspecial order basis. Contact the Technical Assistance Centerat 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 1-952-938-8080 (outside U.S.A.and Canada) for aprice quote and to place your order.6 RETURNED MATERIALContact the ADC Product Return Department at 1-800-366-3891, extension 73748 (in U.S.A. orCanada) 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 aReturn Material Authorization (RMA) number clearlymarked on the outside of the package. The Return Material Authorization number is valid for 90days from authorization.
Page 6-3ADCP-75-150 • Preliminary Issue A • March 2003 • Section 6: General Information7 CUSTOMER INFORMATION AND ASSISTANCE©2003, ADC Telecommunications, Inc.All Rights ReservedPrinted in U.S.A .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
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