Nokia Solutions and Networks WTPA-01 GSM 1900 Transceiver User Manual dn00112232x3x0xen

Nokia Solutions and Networks GSM 1900 Transceiver dn00112232x3x0xen

Alarms Desc

Nokia MetroSite EDGE Base StationDN00112232 © Nokia Corporation Draft 1 (26)Issue 3-0 en Nokia Proprietary and ConfidentialAlarm Descriptions
Alarm Descriptions2 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enThe information in this documentation is subject to change without notice and describes onlythe product defined in the introduction of this documentation. This documentation is intendedfor the use of Nokia's customers only for the purposes of the agreement under which thedocumentation is submitted, and no part of it may be reproduced or transmitted in any form ormeans without the prior written permission of Nokia. The documentation has been prepared tobe used by professional and properly trained personnel, and the customer assumes fullresponsibility when using it. Nokia welcomes customer comments as part of the process ofcontinuous development and improvement of the documentation.The information or statements given in this documentation concerning the suitability, capacity,or performance of the mentioned hardware or software products cannot be considered bindingbut shall be defined in the agreement made between Nokia and the customer. However, Nokiahas made all reasonable efforts to ensure that the instructions contained in the documentationare adequate and free of material errors and omissions. Nokia will, if necessary, explain issueswhich may not be covered by the documentation.Nokia's liability for any errors in the documentation is limited to the documentary correction oferrors. NOKIA WILL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL(INCLUDING MONETARY LOSSES), that might arise from the use of this documentation orthe information in it.This documentation and the product it describes are considered protected by copyrightaccording to the applicable laws.NOKIA logo is a registered trademark of Nokia Corporation.Other product names mentioned in this documentation may be trademarks of their respectivecompanies, and they are mentioned for identification purposes only.Copyright © Nokia Corporation 2002. All rights reserved.
DN00112232 © Nokia Corporation Draft 3 (26)Issue 3-0 en Nokia Proprietary and ConfidentialHereby, Nokia Corporation, declares that this product is in compliance with theessential requirements and other relevant provisions of Directive: 1999/5/EC.The product is marked with the CE marking and Notified Body number according to theDirective 1999/5/EC.FCC FCC §15.21 - Information to user - This product is used as an intentional radiatedequipment and any changes or modifications on the equipment without any approvalby Nokia could void the user's authority to operate the equipment.FCC §15.105 - Information to user - This equipment has been tested and found tocomply with the limits for a Class B digital device, pursuant to part 15 of the FCCRules. These limits are designed to provide reasonable protection against harmfulinterference in a residential installation. This equipment generates, uses and canradiate radio frequency energy and, if not installed and used in accordance with theinstructions, may cause harmful interference to radio communications. However, thereis no guarantee that interference will not occur in a particular installation. If thisequipment does cause harmful interference to radio or television reception, which canbe determined by turning the equipment off and on, the user is encouraged to try tocorrect the interference by one or more of the following measures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that to which thereceiver is connected.• Consult the dealer or an experienced radio/TV technician for help.0523
Alarm Descriptions4 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 en
DN00112232 © Nokia Corporation Draft 5 (26)Issue 3-0 en Nokia Proprietary and ConfidentialContentsContents 5List of tables 6List of figures 71 About this document 92 BTS alarm handling 112.1 Alarm examples 112.1.1 Alarms seen at the BSC or NMS 112.1.2 Alarms seen at the BTS 132.2 Troubleshooting faults 132.3 Fault reporting 142.4 Alarm reclassification 143 BTS alarm descriptions 173.1 Using an alarm description table 173.2 Alarm description tables 18
Alarm Descriptions6 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enList of tablesTable 1. Description of the fields in the alarm description table 17Table 2. 7208 LOCAL BLOCK 18Table 3. 7401 EXTERNAL ALARM 7401-7410, EXTERNAL ALARM 1-10 18Table 4. 7600 BCF FAULTY 19Table 5. 7601 BCF OPERATION DEGRADED 19Table 6. 7602 BCF NOTIFICATION 20Table 7. 7603 BTS FAULTY 21Table 8. 7604 BTS OPERATION DEGRADED 21Table 9. 7605 BTS NOTIFICATION 22Table 10. 7606 TRX FAULTY 22Table 11. 7607 TRX OPERATION DEGRADED 23Table 12. 7609 TRE FAULTY 23Table 13. 7615 RTS IN TEST USE 24Table 14. 7616 OSCILLATOR ADJUSTMENT TEMPORARILYINTERRUPTED 24Table 15. 7617 SEVERAL CALLS DROPPED DUE PROBLEM WITHTRANSCODER 24Table 16. 7620 INCOMING POWER LOST 25Table 17. 7621 INTOLERABLE CONDITIONS ON SITE 25Table 18. 7622 CABINET OPEN 26Table 19. 7801 MMI CONNECTED TO BASE STATION 26
DN00112232 © Nokia Corporation Draft 7 (26)Issue 3-0 en Nokia Proprietary and ConfidentialList of figuresFigure 1. Example 1, active alarms as seen at the BSC 12Figure 2. Example 2, active alarm as seen at the BSC 12Figure 3. Alarms view on Nokia MetroSite BTS Manager desktop 13Figure 4. Faulty and degraded object alarm reclassification 15
Alarm Descriptions8 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 en
About this documentDN00112232 © Nokia Corporation Draft 9 (26)Issue 3-0 en Nokia Proprietary and ConfidentialNote1About this documentThis document provides information on the Nokia MetroSite EDGE Base Stationalarms. The alarms are used as a basis for internal fault recovery and faultreporting to the BSC, NMS/2000 and/or the Nokia MetroSite BTS Managersoftware.This document also gives instructions for the operator on how to correct the faultsand maintain traffic in the air interface and/or to protect the units in the basestation.This document does not include transmission unit alarms. Please refer toappropriate transmission unit documentation.
Alarm Descriptions10 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 en
BTS alarm handlingDN00112232 © Nokia Corporation Draft 11 (26)Issue 3-0 en Nokia Proprietary and Confidential2BTS alarm handlingThis chapter describes Nokia MetroSite EDGE Base Station alarm handling andalarm reclassification. The fields in the alarm description table are also described.2.1 Alarm examplesAlarms can be detected at the BSC, the NMS, or at the BTS. Instructions on howto deal with the alarms is found in the alarm descriptions tables in Chapter 3 ofthis document.For instructions on how to replace units or carry out other maintenance tasks,refer to Nokia MetroSite EDGE Base Station: Maintenance and Nokia MetroSiteBase Station: Field Upgrade.2.1.1 Alarms seen at the BSC or NMSNokia MetroSite EDGE Base Station alarms issued at the BSC or NMS/2000have a four-digit alarm number and an alarm name, together with the optionalfault reason (refer to Figures 1 and 2). For information on the other fields shownin Figures 1 and 2, refer to BSC documentation.
Alarm Descriptions12 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enNoteFigure 1. Example 1, active alarms as seen at the BSCFigure 2. Example 2, active alarm as seen at the BSCThe text below the alarm name describes the fault that has caused the alarm. Forexample, in alarm [2] in Figure 1, the power supply unit is probably broken.One alarm can have many different fault reasons.In alarm [2] in Figure 1 the fault is different but the alarm number is the same asin Figure 2. The effect on the operation of a base station is the same, which is whythey have the same alarm number and name.
BTS alarm handlingDN00112232 © Nokia Corporation Draft 13 (26)Issue 3-0 en Nokia Proprietary and Confidential2.1.2 Alarms seen at the BTSFigure 3 shows how alarms (number, name and fault reason) are seen in theAlarms view on the desktop of the Nokia MetroSite BTS Manager software.Figure 3. Alarms view on Nokia MetroSite BTS Manager desktop2.2 Troubleshooting faultsBTS alarms are described in detail in the alarm description tables found inChapter 3 of this document. Table 1 describes how to use the alarm descriptiontables.
Alarm Descriptions14 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enNoteNoteTroubleshooting faults using alarm description tables1. Check the alarm number and alarm name and find its alarm descriptiontable in Chapter 3 in this document.2. Find the fault reason in the Fault reason field in the alarm description table.3. Follow the instructions given in the Instruction field. See also the alarmcancelling information in the Cancelling field.4. If the fault reason cannot be found in the Fault reason field, follow theinstructions given for Other faults.Instructions given for Other faults apply to several different fault reasons.2.3 Fault reportingWhere possible, correct all damage, failures, and faults and report them to Nokiausing the Failure Report Form provided by Nokia Customer Services.You can save the alarm information to a log file on your PC with Nokia MetroSiteBTS Manager.2.4 Alarm reclassificationIn fault situations, Nokia MetroSite EDGE Base Station runs an automaticreclassification procedure for major (**) and critical (***) alarms before it sendsan alarm to the BSC. When an object becomes faulty, only one critical (***)alarm from the object can be active at a time.In reclassification, the alarm handling detects which logical base station object isaffected by a unit level fault. After reclassification, an object level alarm is issuedaccording to a certain hierarchy, as described in Figure 4.
BTS alarm handlingDN00112232 © Nokia Corporation Draft 15 (26)Issue 3-0 en Nokia Proprietary and ConfidentialAlarm Output in Figure 4 shows the number and the name of the alarm(s) issuedat the BSC in such a fault situation. Also, the object that is the alarm origin isgiven in brackets.Figure 4. Faulty and degraded object alarm reclassificationFault situation [1]:1. TRX 1 becomes disconnected and ceases to operate. 7606 TRX FAULTYalarm is issued.
Alarm Descriptions16 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enFault situation [2]:1. TRX 1 becomes disconnected and ceases to operate. 7606 TRX FAULTYalarm is issued.2. TRX 2 becomes disconnected, which causes BTS 1 cease to operate. Alarmreclassification discards the new TRX alarm and a BTS alarm, 7603 BTSFAULTY, is issued.Fault situation [3]:1. TRX 1 becomes disconnected and ceases to operate. 7606 TRX FAULTYalarm is issued.2. TRX 2 becomes disconnected, which causes BTS 1 cease to operate. Alarmreclassification discards the new TRX alarm and a BTS alarm, 7603 BTSFAULTY, is issued.3. TRX 3 becomes disconnected, and another 7606 TRX FAULTY alarm isissued.4. TRX 4 becomes disconnected, which causes BTS 2 cease to operate. Nowboth sectors in the BCF are not operating. Alarm reclassification discardsboth the new TRX alarm and the new BTS alarm, and a BCF alarm, 7600BCF FAULTY, is issued.Fault situation [4]:1. TRX 1 becomes partially faulty but calls are getting through. 7607 TRXOPERATION DEGRADED alarm is issued.2. TRX 2 becomes disconnected and ceases to operate. Alarm reclassificationdiscards the new TRX alarm and a BTS alarm, 7604 BTS OPERATIONDEGRADED, is issued.
BTS alarm descriptionsDN00112232 © Nokia Corporation Draft 17 (26)Issue 3-0 en Nokia Proprietary and Confidential3BTS alarm descriptionsThis chapter defines the alarms collected from the objects in the Nokia MetroSiteEDGE Base Station.3.1 Using an alarm description tableTable 1 describes the information that you will find in the alarm description tablesfor the Nokia MetroSite EDGE Base Station. A full list of the alarm tables isgiven in Chapter 3.2 of this document.Table 1. Description of the fields in the alarm description table1234 ALARM NAMESeverity: Object affected: Object state: Unit:Shows the alarm severity asdisplayed at the BSC orNMS/2000. The options are:• * = minor• ** = major• *** = critical• User definitionThe logical objectaffected by the fault.The options are:BCF, BTS, TRX, TRE,RTSThe state of theaffected object at thetime the alarm isissued. The optionsare:• Enabled• DisabledThe alarm origin(s). The unitis given a four-letteracronym, e.g.:WTxx, HVTx, VXxx, VIFAFault reason: Instruction: Alarm cancelling:This field describes thecause of the alarm, forexample:Power unit is probablybroken.This field gives instructions for the operator (atthe NMS/2000 or at the BSC) how to correct thefault reason causing the alarm:1. If the power supply unit LED is green, checkthe TRXs and replace the faulty TRX. TheTRX connectors are probably broken.2. If the power supply unit LED is red, replacethe power supply unit.This field describes how thealarm is cancelled. Theoptions are:• Automatic• Manual
Alarm Descriptions18 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enNote3.2 Alarm description tablesThe alarms from the blocked object are cancelled.Table 2. 7208 LOCAL BLOCK7208 LOCAL BLOCKSeverity: Object affected: Object state: Unit:* BCF, or BTS, or TRX Disabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:No fault reason text with thealarm.Nokia MetroSite BTS objectis blocked with Nokia BTSManager.1. No actions required. Automatic.Table 3. 7401 EXTERNAL ALARM 7401-7410, EXTERNAL ALARM 1-107401 EXTERNAL ALARM 7401 - 7410, EXTERNAL ALARM 1 - 10Severity: Object affected: Object state: Unit:User definition BCF Enabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:No fault reason text with thealarm.This is an external user-definable alarm.1. Check the settings at the BSC.2. Check the cable connected to the VIFA unit in thebase station.3. Check the unit connected to the external alarmline.4. If all of the above are OK, replace the VIFA plug-inunit.Automatic.
BTS alarm descriptionsDN00112232 © Nokia Corporation Draft 19 (26)Issue 3-0 en Nokia Proprietary and ConfidentialTable 4. 7600 BCF FAULTY7600 BCF FAULTYSeverity: Object affected: Object state: Unit:*** BCF Disabled WTxx, HVTx, HVSx,VIFAFault reason: Instruction: Alarm cancelling:Power unit is probablybroken.1. If the power supply unit LED is green, check theTRXs and replace the faulty TRX. TRX connectorsare probably broken.2. If the power supply unit LED is red, replace thepower supply unit.Automatic.Oven oscillator is broken. 1. Replace the VIFA unit. Automatic.Temperature inside the TRXis dangerously high.1. Check whether the following alarm is active:7621 INTOLERABLE CONDITIONS ON SITEand follow the instructions given for the alarm.2. Even if alarm 7621 is not active, and there is onlyone TRX in the cabinet, follow the instructionsgiven for alarm 7621.3. If alarm 7621 is not active and the cabinet hasmore than one TRX, replace the master TRX.Automatic.Other faults. 1. Check whether either of the following alarms isactive:7606 TRX FAULTY7603 BTS FAULTYand follow the instructions given for the activealarm(s). If necessary, replace all TRXs in thecabinet.Automatic.Table 5. 7601 BCF OPERATION DEGRADED7601 BCF OPERATION DEGRADEDSeverity: Object affected: Object state: Unit:** BCF Enabled WTxx, HVTx
Alarm Descriptions20 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enFault reason: Instruction: Alarm cancelling:Cabinet I2 C bus isjammed.1. Switch the site power Off and On.2. Check the fan unit, the power supply unit and theTRXs. If necessary, replace the faulty unit(s).3. If the fault reappears, replace the cabinet. Theunits inside the cabinet can be reused in the newcabinet.Automatic.Other faults. 1. Check whether one or several of the followingalarms are active:7606 TRX FAULTY7603 BTS FAULTY7607 TRX OPERATION DEGRADED7604 BTS OPERATION DEGRADEDand follow the instructions given for the activealarm(s).Automatic.Table 5. 7601 BCF OPERATION DEGRADED (Continued)7601 BCF OPERATION DEGRADEDTable 6. 7602 BCF NOTIFICATION7602 BCF NOTIFICATIONSeverity: Object affected: Object state: Unit:* BCF Enabled WTxx, HVTx, HVMFFault reason: Instruction: Alarm cancelling:
BTS alarm descriptionsDN00112232 © Nokia Corporation Draft 21 (26)Issue 3-0 en Nokia Proprietary and ConfidentialTemperature inside theTRX is high.1. Check whether the following alarm is active forfan unit:7605 BTS NOTIFICATIONand follow the instructions given for the alarm.2. Even if there are no active alarms for the fanunit, check that no foreign objects obstruct theairflow.3. If alarm 7605 is not active, ensure that theambient temperature of the base station is withinacceptable limits.Automatic.Temperature inside theTRX is low.1. Ensure that the ambient temperature is withinacceptable limits. Check also the fan unit.Automatic.Fan unit is broken. 1. Check whether the fan unit is installed.2. When there is a fan unit installed, check ifsomething has jammed the fan unit and removethe jamming object. Otherwise replace the fanunit.Automatic.Table 6. 7602 BCF NOTIFICATION (Continued)7602 BCF NOTIFICATIONTable 7. 7603 BTS FAULTY7603 BTS FAULTYSeverity: Object affected: Object state: Unit:*** BTS Disabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:Other faults. 1. Check whether the following alarm is active:7606 TRX FAULTYand follow the instructions given for the alarm. Ifnecessary, replace all TRXs in the faulty sector.Automatic.Table 8. 7604 BTS OPERATION DEGRADED7604 BTS OPERATION DEGRADEDSeverity: Object affected: Object state: Unit:
Alarm Descriptions22 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 en** BTS Enabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:Other faults. 1. Check whether either of the following alarms isactive:7606 TRX FAULTY7607 TRX OPERATION DEGRADEDand follow the instructions given for the activealarm(s).Automatic.Table 8. 7604 BTS OPERATION DEGRADED (Continued)7604 BTS OPERATION DEGRADEDTable 9. 7605 BTS NOTIFICATION7605 BTS NOTIFICATIONSeverity: Object affected: Object state: Unit:* BTS Enabled HVMFFault reason: Instruction: Alarm cancelling:Fan unit operationdegraded.1. If something has jammed the fan unit, remove thejamming object. Otherwise replace the fan unit.Automatic.Table 10. 7606 TRX FAULTY7606 TRX FAULTYSeverity: Object affected: Object state: Unit:** TRX Disabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:Failure detected during TRXconfiguring.1. The TRX has become disconnected. Reconnectthe cabling at the TRX.Automatic.Antenna connection faulty. 1. Check the antenna and cabling. If the antennaand cabling are faulty, correct the problem andrun TRX test to cancel the alarm.Manual/Automatic.TRX test result antennaconnection faulty.1. Check the antenna and cabling. If the antennaand cabling are faulty, correct the problem andrun TRX test again to cancel the alarm.Manual/Automatic.
BTS alarm descriptionsDN00112232 © Nokia Corporation Draft 23 (26)Issue 3-0 en Nokia Proprietary and ConfidentialNoteIn case of alarm 7606, if a BCCH TRX is affected, the BSC performs a BCCHreconfiguration if possible.Table 11. 7607 TRX OPERATION DEGRADED7607 TRX OPERATION DEGRADEDSeverity: Object affected: Object state: Unit:** TRX Enabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:Other faults. 1. Replace the faulty TRX. Automatic.Table 12. 7609 TRE FAULTY7609 TRE FAULTYSeverity: Object affected: Object state: Unit:*** BCF Disabled VXxxFault reason: Instruction: Alarm cancelling:Master TRX detected thatconnection to transmissionunit is lost.1. If the alarm is seen at the BSC, the transmissionunit is not working properly. However, if the basestation otherwise operates properly, there is noneed for immediate repair. The transmissionalarms are not reported to the BSC.2. If the alarm is seen on Nokia BTS Manager only,the transmission unit is not operating. Reset theBCF.3. If the alarm reappears after BCF reset, switchthe cabinet power off and on.4. If the alarm reappears after the recovery actionsabove, replace the faulty transmission plug-inunit.Manual/Automatic.
Alarm Descriptions24 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enTable 13. 7615 RTS IN TEST USE7615 RTS IN TEST USESeverity: Object affected: Object state: Unit:* RTS Disabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:No fault reason text with thealarm.Internal O&M SW is testingthe timeslots during TRXtest.1. No actions required. Automatic.Table 14. 7616 OSCILLATOR ADJUSTMENT TEMPORARILYINTERRUPTED7616 OSCILLATOR ADJUSTMENT TEMPORARILY INTERRUPTEDSeverity: Object affected: Object state: Unit:* BCF Enabled VIFAFault reason: Instruction: Alarm cancelling:Oven oscillatoradjustment functioninterrupted.1. Check the Abis connection.2. If the Abis connection is OK, replace the faulty VIFAunit.Automatic.Table 15. 7617 SEVERAL CALLS DROPPED DUE PROBLEM WITHTRANSCODER7617 SEVERAL CALLS DROPPED DUE PROBLEM WITH TRANSCODERSeverity: Object affected: Object state: Unit:** TRX Enabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:Other faults.There is an error with theconnection between thebase station and thetranscoder.1. Check the transmission path between the basestation and the transcoder.Automatic/Manual.
BTS alarm descriptionsDN00112232 © Nokia Corporation Draft 25 (26)Issue 3-0 en Nokia Proprietary and ConfidentialNoteNoteWhen alarm 7620 is active, it will not be sent to Nokia BTS Manager. However,alarm cancelling can be seen on Nokia BTS Manager.In case of alarm 7620, if the power loss is very short and the power is on againwithin 1500 ms, the alarm is cancelled automatically. No actions required.Table 16. 7620 INCOMING POWER LOST7620 INCOMING POWER LOSTSeverity: Object affected: Object state: Unit:* BCF Enabled HVSxFault reason: Instruction: Alarm cancelling:No fault reason text withthe alarm.Base station powersupply unit has lost itsmain power.1. Check the mains supply.2. If the mains supply is OK, replace the powersupply unit.Automatic.Table 17. 7621 INTOLERABLE CONDITIONS ON SITE7621 INTOLERABLE CONDITIONS ON SITESeverity: Object affected: Object state: Unit:* BCF Enabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:Temperature inside the TRXis dangerously high.1. Check that the fan unit is operating.2. If the fan unit is OK, ensure that theenvironment of the base station site meets theconditions specified for Nokia MetroSite EDGEBase Station.Automatic.
Alarm Descriptions26 (26) © Nokia Corporation Draft DN00112232Nokia Proprietary and Confidential Issue 3-0 enTable 18. 7622 CABINET OPEN7622 CABINET OPENSeverity: Object affected: Object state: Unit:* BCF Enabled HVCU, WCUAFault reason: Instruction: Alarm cancelling:Cabinet cover is open. 1. If the cover is attached, ensure it is securedproperly. If there is no cover, attach it duringnormal service operations.Automatic.Table 19. 7801 MMI CONNECTED TO BASE STATION7801 MMI CONNECTED TO BASE STATIONSeverity: Object affected: Object state: Unit:* BCF Enabled WTxx, HVTxFault reason: Instruction: Alarm cancelling:No fault reason text withthe alarm.Nokia BTS Manager isconnected to NokiaMetroSite BTS.1. No actions required. Automatic.

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