FCC ID: F8I-DVLRCSPCS - User Manual - Part 5 ADCP-75-126 • Issue B • April 2002 • Section 4: Operation Right-click here to open the Host Rev Att pop-up screen Right-click here to open the Host Div Rev Att pop-up screen Figure 4-12. HOST RF Display 5. Right-click on the Host Rev Att section of the display (see Figure 4-12). The Host Rev Att pop-up screen will open as shown in Figure 4-13. Figure 4-13. Host Rev Att Pop-Up Screen 6. Enter the attenuation value that will provide the required gain.
ADCP-75-126 • Issue B • April 2002 • Section 4: Operation Table 4-2. Reverse Path Setting ATTENUATION SETTING 2.
ADCP-75-126 • Issue B • April 2002 • Section 4: Operation 2. Right-click on the Host Fwd Delay section of the display (see Figure 4-14). The Host Fwd 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. 4. Enter the forward path delay value and click OK to close the pop-up screen and to make the changes take effect. 5.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance SECTION 5: MAINTENANCE 1 SYSTEM MAINTENANCE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 2 FAULT DETECTION AND ALARM REPORTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2 3 FAULT ISOLATION AND TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance • Battery maintenance tools (see PRC-SERIES OPERATING AND FIELD SERVICE MANUAL for tool recommendations) 2 FAULT DETECTION AND ALARM REPORTING The Digivance LRCS on-board embedded software detects various unit and system faults and reports them as either Major or Minor alarms. A Major alarm indicates that the system has failed in a way that directly affects RF transport performance.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance Table 5-1. Host Unit LED Indicators INDICATOR COLOR DESCRIPTION Green Off Indicates if the HU is powered or un-powered. The DC power source is on. The DC power source is off. POWER STANDBY Indicates if the HU is in the standby, normal, test, or program load mode. Green (blinking) The HU is in the standby mode. Yellow (blinking) The HU is in the program load mode. Red (blinking) The HU is in the test mode. Off The HU is in the normal mode.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance Table 5-2. Spectrum Transport Module LED Indicators INDICATOR COLOR DESCRIPTION Green Red Indicates if the STM is powered by the AC power source or the back-up battery system. The STM is powered by the AC power source. The STM is powered by the back-up battery system. AC POWER STANDBY Indicates if the STM is in the standby, normal, test, or program load mode. Green (blinking) The STM is in the standby mode.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance Table 5-3. Linear Power Amplifier LED Indicators and Digital Display INDICATOR COLOR DESCRIPTION Off Yellow Indicates if the LPA is normal or faulty. The LPA is normal. Internal fault detected in the LPA. Off Red Indicates if the LPA has an RF output or if the RF output is shutdown. The LPA RF output is on. The LPA RF output is shutdown. FAIL SHUTDOWN DISPLAY MESSAGE DESCRIPTION ADC1940 0 ALARMS NORMAL OPERATION The LPA is normal.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 3 FAULT ISOLATION AND TROUBLESHOOTING Alarm information may be accessed and faults isolated using the information provided by the unit front panel LED indicators, the EMS software GUI alarm displays, or the NOC-EMS interface.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance Table 5-6. Remote Unit Minor Alarms MINOR ALARM LED INDICATOR MINOR ALARM LED INDICATOR Temperature STM Sec Laser Fail STM Sec Rev Mux Lock STM Sec Rev Synth Lock STM Rev Path Level (Does not apply) LPA Disable SHUTDOWN (LPA) LPA Fan PA LPA High Temp PA RF Out Very Low (Does not apply) Minor Extern Alarm Inp (Does not apply) During normal HU operation, all LED’s should be green except the STANDBY LED which should be Off.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance Table 5-7. Host Unit Fault Isolation and Troubleshooting, continued Alarm Type LED Color Major HOST UNIT Red PROBLEM: Internal fault detected in HU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. HU and STM band mismatch. 2. The HU has failed. 1. Replace HU or STM with correct unit. 2. Replace the HU. Alarm Type LED Color Major REMOTE UNIT Red PROBLEM: A major alarm is detected at the RU.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance During normal STM operation, all LED’s should be green except the STANDBY LED which should be Off. When a Minor alarm occurs, one or more of the LED’s will turn yellow. When a Major alarm occurs, one or more of the LED’s will turn red. During normal LPA operation, all LED’s should be Off. Table 5-8. STM and LPA Fault Isolation and Troubleshooting Alarm Type LED Color Minor STM Yellow PROBLEM: The STM is overheating.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance Table 5-8. STM and LPA Fault Isolation and Troubleshooting, continued Alarm Type LED Color Major STM Red PROBLEM: Internal fault detected in STM. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. HU and STM band mismatch. 2. The STM has failed. 1. Replace HU or STM with correct unit. 2. Replace the STM. Alarm Type LED Color Major PA Red PROBLEM: Internal fault detected in LPA. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance Table 5-8. STM and LPA Fault Isolation and Troubleshooting, continued Alarm Type LED Color Major SHUTDOWN Red PROBLEM: The RF output from the LPA is shutdown. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1.The RF ON/OFF switch is in the OFF position 1.Place RF ON/OFF switch in the ON position or or the LPA was set in the disable mode through enable the LPA. the EMS computer. 2. Breaker switch on LPA is open 2. Reset breaker switch. 3.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 7. Verify that the power loss is within specifications. The optical loss budget for 9/125, single-mode fiber is 25 dB (for BER of 10-6). The optical power level should not exceed – 15 dBm to avoid overdriving the optical receiver. If the power loss is not within specifications, repair or replace the optical fiber and/or connector per local practice. 8. Repeat steps 3 through 6 for each optical fiber that requires testing. 9.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 11. Remove the dust caps from the optical fiber connectors. 12. Clean each connector (follow connector supplier’s recommendations) and then insert each connector into the appropriate optical port. 13. When ready to put the unit back into service, place the On/Off switch in the ON position (press I). 14. Notify the NOC or alarm monitoring service that the system is going back online. 4.2.2 PORT 3 Loopback Test 1.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 5.1 Scheduled Maintenance Table 5-9 lists the items that require regular maintenance and the recommended maintenance interval. Refer to the section specified in the table for the required maintenance or test procedure. Table 5-9. Scheduled Maintenance INTERVAL ITEM REQUIREMENT 1 month Battery* Check float voltage. Check system ambient temperature. Check system float current. 6 months Battery* Perform 1 month scheduled maintenance tasks.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance LIFT AIR FILTER UP AND AWAY FROM DOOR LOOSEN HEX NUTS ON BOTH SIDES OF AIR FILTER 16983-A Figure 5-1. Air Filter Removal and Replacement 4. Gently tap the filter against your hand to dislodge the dirt. If necessary, use compressed air or a vacuum cleaner to remove the dirt. 5. Re-install the filter in the door and tighten the hex nuts that secure the left and right brackets to the door. 5.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 16986-A Figure 5-2. Host Unit Fan/Grill Assembly Removal 5. Carefully withdraw the fan/grill assembly from the enclosure until the wiring harness is exposed and the connectors are accessible. 6. Lift the small latch on each wiring harness connector and carefully unplug each connector from the circuit board connector. 7.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 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 Procedure The STM is equipped with a rear cooling fan that exhausts heated air from the STM enclosure. Cool air enters the STM through vent openings on the side of the enclosure.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 5. Loosen the captive screws that secure the STM to the RU cabinet mounting shelf and carefully withdraw the STM from the cabinet. 6. Remove the four pan-head screws (requires TORX screwdriver with T10 bit) that secure the fan/grill assembly to rear side of the STM enclosure as shown in Figure 5-5. Save screws for reuse. 16992-A Figure 5-5. STM Fan/Grill Assembly Removal 7.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance 16993-A Figure 5-6. Removing STM Fan From Mounting Plate and Grill 14. Re-install the STM in the cabinet and then re-connect all cables in the reverse order in which 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. 5.
ADCP-75-126 • Issue B • April 2002 • Section 5: Maintenance LPA 1940 PULL ON RETAINERS TO REMOVE FAN 17549-A Figure 5-7. LPA Fan Removal and Replacement 6. Carefully withdraw the fan assembly from the LPA until the wiring harness is exposed and the RJ-45 wiring harness connector is accessible. 7. Disconnect the fan wiring harness connector from the LPA and lift the fan assembly away from the LPA. 8. Place a small amount of anti-corrosion gel on the connector of the replacement fan assembly. 9.
ADCP-75-126 • Issue B • April 2002 • Section 6: General Information SECTION 6: GENERAL INFORMATION Content Page 1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 2 SOFTWARE SERVICE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 3 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADCP-75-126 • Issue B • April 2002 • Section 6: General Information 4 REPAIR CHARGES If the defect and the necessary repairs are covered by the warranty, and the applicable warranty period has not expired, the Buyer’s only payment obligation is to pay the shipping cost to return the defective Product. ADC will repair or replace the Product at no charge and pay the return shipping charges.
ADCP-75-126 • Issue B • April 2002 • Section 6: General Information 7 CUSTOMER INFORMATION AND ASSISTANCE PHONE: EUROPE Sales Administration: +32-2-712-65 00 Technical Assistance: +32-2-712-65 42 U.S.A. OR CANADA Sales: 1-800-366-3891 Extension 73000 Technical Assistance: 1-800-366-3891 Extension 73475 ELSEWHERE Sales Administration: +1-952-938-8080 Technical Assistance: +1-952-917-3475 SYSTEM INTEGRATION DIVISION (SID) 800.366.3891 (press star and choose option 4) (US & Canada) +1-952.917.
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