142256754 Alarms of Ericsson Minilink Craft
Short Description
Alarms of Ericsson Minilink...
Description
OPERATING INSTRUCTIONS Alarm Descriptions MINI-LINK CN 210 ETSI
2/1543-100/CSH 109 32/1-V3 Uen A
Contents 1
Introduction
2
Safety Information
3 3.1
Preparations Additional Preparations
4 4.1 4.2 4.3 4.4
Overview Consequences Alarm Analysis Corrective Actions Alarm Clearance
5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19 5.20 5.21 5.22
Alarms AIS (Minor) AMS 15 min threshold crossing AMS 24 h threshold crossing ATPC Capability ATPC Capability (Far End) BBE 15 min threshold crossing BBE 24 h threshold crossing BER (Major) BER (Critical) Default configuration not accepted Dmod Clock (Major) Dmod Clock (Critical) Downstream buffer overflow ES 15 min threshold crossing ES 24 h threshold crossing Ethernet Down (Minor) Ethernet Down (Critical) Free running mode entered Hardware Error: RAU (Minor) Hardware Error: RAU (Critical) Hardware Error: RMM HCC
5.23 5.24 5.25 5.26 5.27 5.28 5.29 5.30 5.31 5.32 5.33 5.34 5.35 5.36 5.37 5.38 5.39 5.40 5.41 5.42 5.43 5.44 5.45 5.46 5.47 5.48 5.49 5.50 5.51 5.52 5.53 5.54 5.55 5.56 5.57 5.58 5.59 5.60 5.61 5.62 5.63 5.64
High Temperature Hitless Phase ICC Insufficient resources LOS: RAU IF (Major) LOS (Critical) LOS: RAU IF (Critical) Low Input Voltage Mod Index Node Installation No Traffic Power Failure (upper input port) Power Failure (lower input port) Power Failure (upper input port) Slave Power Failure (lower input port) Slave PPP down RAU Power Supply Changed Radio Frame (Major) Radio Frame (Critical) Radio ID (Major) Radio ID (Critical) RCC (Major) Remote Tx Switch Over Reserved Position RF Input Level (Major) RF Input Level (Critical) RF Input Threshold RF Input Threshold Protection RF Output Level (Major) RF Output Level (Critical) Running configuration not accepted Rx AFC RX Frequency (Major) RX Frequency (Critical) Rx IF Input SES 15 min threshold crossing SES 24 h threshold crossing Squelch threshold reached TX Frequency (Major) TX Frequency (Critical) Tx IF Input (Major) Tx IF Input (Critical)
5.65 5.66 5.67 5.68 5.69 5.70 5.71 5.72 5.73 5.74
TX Switch Over Unable to Protect: SWITCH (Major) Unable to Protect: SWITCH (Critical) Unavailable Period Unit Inaccessible: Slave MMU Unit Inaccessible: RMM Unsupported RMM variant - connect FTP server and do upgrade Unsupported Unit Type Missing License User I/O
Reference List © Ericsson AB 2011. All rights reserved. No part of this document may be Copyright reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued Disclaimer progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document. Abstract The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.
1 Introduction This document describes the alarms for MINI-LINK CN 210 . It also proposes actions to be taken upon reception of an alarm.
2 Safety Information Make sure that the information in the following documents has been understood by the persons performing the procedures:
Personal Health and Safety Information System Safety Information Supplementary Safety Information for MINI-LINK
3 Preparations
This section presents the preparations needed for a successful completion of the procedures in this instruction.
3.1 Additional Preparations Consider the following additional preparations:
Read through all applicable sections and make sure referenced documents are available. Make sure you have access to the NE using MINI-LINK Craft. For more information, see Accessing a Network Element.
4 Overview Each alarm section begins with a short description of the alarm. The following information is also included as reported in the Notification List in MINI-LINK Craft: SpecificProblem The name of the alarm. Source
The source of the alarm.
AlarmType
The alarm type. The alarm types are specified in Fault Management Operations.
Severity
The severity of the alarm, for example, Critical or Minor. All severities are described in Fault Management Operations.
ProbableCause
The probable cause of the alarm.
The caption of each alarm section can contain three parts: Specific Problem, Source, and Severity. Only the parts that are necessary to specify a unique alarm are included in each heading. For example, the caption of the alarm Hardware Error, with source equal to RAU and severity equal to critical, is named "Hardware Error: RAU (Critical)". Optionally, the list with information from the Notification List in MINI-LINK Craft is followed by subsections that describe the alarm in more detail, see below.
4.1 Consequences Section that describes what else has happened as a result of this alarm, informs if a switch has occurred, and if there are any masked alarms.
4.2 Alarm Analysis Section describing how to find the root cause of the alarm.
4.3 Corrective Actions Section that describes which actions can be taken in order to recover the system.
4.4 Alarm Clearance Section that describes how the alarm is cleared, automatically or as a result of corrective action.
5 Alarms This section describes all alarms listed alphabetically.
5.1 AIS (Minor) Alarm Indication Signal (AIS) An AIS is detected on the incoming traffic. SpecificProblem Source
AIS o
E1
AlarmType
CommunicationAlarm
Severity
Minor
ProbableCause
AlarmIndicationSignal
5.2 AMS 15 min threshold crossing Adaptive Modulation Seconds (AMS) The terminal has been using the minimum modulation longer time than the configured 15 minute threshold. The threshold has been crossed during the current 15 minute interval. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem Source
AMS 15 m threshold crossing o
RAU IF (1+0)
o
SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Minor
ProbableCause
ThresholdCrossed
5.2.1 Consequences Decreased traffic capacity for a longer time than expected.
5.2.2 Corrective Actions The problem may be temporary, but if the alarm continues over consecutive 15 min intervals, try the following actions: 1. Verify the Radio Frequency (RF) input power level: it must be above the 10-6 Bit Error Ratio (BER) threshold (at least 5 dB) during good weather conditions. 2. Check the antenna alignment, see Installing Outdoor Equipment. 3. Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). 4. Verify that the Radio Network Planning is correct.
5.2.3 Alarm Clearance The alarm is cleared when the time spent in the minimum modulation at the end of the interval is less than the AMS 15 min reset threshold.
5.3 AMS 24 h threshold crossing Adaptive Modulation Seconds (AMS) The terminal has been using the minimum modulation longer time than the configured 24 hour threshold. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem Source
AMS 24 h threshold crossing o
RAU IF (1+0)
o
SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Minor
ProbableCause
ThresholdCrossed
5.3.1 Consequences Decreased traffic capacity for a longer time than expected.
5.3.2 Corrective Actions Try the following actions: 1. Verify the Radio Frequency (RF) input power level: it must be above the 10-6 Bit Error Ratio (BER) threshold (at least 5 dB) during good weather conditions. 2. Check the antenna alignment, see Installing Outdoor Equipment, . 3. Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). 4. Verify that the Radio Network Planning is correct.
5.3.3 Alarm Clearance The alarm is not cleared automatically. To clear it do a warm restart.
5.4 ATPC Capability Automatic Transmit Power Control (ATPC) The terminal is configured for ATPC, but the RAU does not support ATPC. This alarm is activated only if ATPC is turned on (any direction). SpecificProblem
ATPC Capability
Source
RAU
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
ReplacebleUnitTypeMismatch
5.4.1 Consequences It is not possible to use ATPC functionality.
5.4.2 Corrective Actions Replace the RAU to one with ATPC support, see Replacing a Radio Unit.
5.4.3 Alarm Clearance The alarm is cleared when ATPC is disabled or if the RAU is replaced to a RAU with ATPC support.
5.5 ATPC Capability (Far End) Automatic Transmit Power Control (ATPC) The terminal on the far-end is configured for ATPC, but at least one of the units does not support ATPC. SpecificProblem
ATPC Capability (Far End)
Source
All MMUs All MINI-LINK CN 210 units
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
ReplacebleUnitTypeMismatch
5.5.1 Consequences It is not possible to enable ATPC functionality.
5.5.2 Corrective Actions Replace far-end terminal to one with ATPC support, see the relevant Replacing document.
5.5.3 Alarm Clearance The alarm is cleared when ATPC is disabled or if the far-end terminal is replaced to one with ATPC support.
5.6 BBE 15 min threshold crossing Background Block Error (BBE) BBE threshold crossing for 15 min composite performance monitoring. The alarm is raised when the BBE counter value crosses the BBE threshold set by the operator. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem
BBE 15 min threshold crossing
Source
o o
RAU IF (1+0) SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Major
ProbableCause
ThresholdCrossed
5.6.1 Consequences Degraded traffic.
5.6.2 Corrective Actions The problem may be temporary, but if the alarm continues over consecutive 15 min intervals, try the following actions: 1. Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). 2. Verify that the received signal power is as expected (by performing a link budget calculation). 3. Check that no interference signal is present. 4. Replace the MINI-LINK CN 210, see Replacing a MINI-LINK CN 210 5. Replace the RAU, see Replacing a Radio Unit.
5.6.3 Alarm Clearance The alarm is cleared at the next 15 minutes interval where the BBE counter threshold no longer is crossed.
5.7 BBE 24 h threshold crossing Background Block Error (BBE) BBE threshold crossing for 24 hour composite performance monitoring. The alarm is raised when the BBE counter value crosses the BBE threshold set by the operator. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem
BBE 24 h threshold crossing
Source
o o
RAU IF (1+0) SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Major
ProbableCause
ThresholdCrossed
5.7.1 Consequences Degraded traffic.
5.7.2 Corrective Actions The problem may be temporary, but if the alarm continues over consecutive 24 h intervals, try the following actions: 1. Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). 2. Verify that the received signal power is as expected (by performing a link budget calculation). 3. Check that no interference signal is present. 4. Replace the MINI-LINK CN 210, see Replacing a MINI-LINK CN 210. 5. Replace the RAU, see Replacing a Radio Unit.
5.7.3 Alarm Clearance The alarm is cleared at the next 24 hours interval where the BBE counter threshold no longer is crossed.
5.8 BER (Major) Bit Error Ratio (BER) The BER calculated by the Forward Error Correction (FEC) for the received signal has exceeded the BER alarm threshold. The incoming signal is so corrupt that the FEC is unable to correct the incoming traffic. Applicable for RAU IF (1+1). SpecificProblem
BER
Source
RAU IF
AlarmType
Communication
Severity
Major
ProbableCause
DegradedSignal
5.8.1 Consequences Radio Protection Switch will select the other demodulation path if its signal quality is better.
5.8.2 Corrective Actions Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). If the alarm is raised during hop installation, also try the following: 1. Verify that the received signal power is as expected (by doing a link budget calculation). 2. Check the antenna alignment, see Installing Outdoor Equipment.
5.8.3 Alarm Clearance The alarm is cleared when the BER estimation is below the BER alarm threshold.
5.9 BER (Critical) Bit Error Ratio (BER) The BER calculated by the Forward Error Correction (FEC) for the received signal has exceeded the BER alarm threshold. The incoming signal is so corrupt that the FEC is unable to correct the incoming traffic.
Applicable for RAU IF (1+0). SpecificProblem
BER
Source
RAU IF
AlarmType
Communication
Severity
Critical
ProbableCause
DegradedSignal
5.9.1 Consequences Degradation of signal quality. Only for Plesiochronous Digital Hierarchy (PDH).
5.9.2 Corrective Actions Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). If the alarm is raised during hop installation, also try the following: 1. Verify that the received signal power is as expected (by doing a link budget calculation). 2. Check the antenna alignment, see Installing Outdoor Equipment.
5.9.3 Alarm Clearance The alarm is cleared when the BER estimation is below the BER alarm threshold.
5.10 Default configuration not accepted The MINI-LINK CN 210 or RAU could not accept the default configuration. This can be caused by an error in the configuration file or by a hardware error. The service (yellow) LED flashes during this alarm. SpecificProblem Source
Default configuration not accepted o o
All MINI-LINK CN 210 units All RAUs
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
ReplaceableUnitTypeMismatch
5.10.1 Consequences Failure to manage the unit or the entire node.
5.10.2 Alarm Clearance The alarm is cleared when the configuration file is accepted.
5.11 Dmod Clock (Major) The internal data rate of the MINI-LINK CN 210 does not correspond to the received data rate. This fault will cause bit slip in the composite bit stream. Probable causes for the fault: faulty MINI-LINK CN 210 or fading. Applicable for RAU IF (1+1). SpecificProblem
Dmod Clock
Source
RAU IF
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
TimingProblem
5.11.1 Consequences This condition may lead to Unable to Protect or hitless switching not working, if a switch needs to be done later.
5.11.2 Corrective Actions If the problem is caused by fading when space diversity is used, the system is probably able to correct itself and no action is necessary. Otherwise, try the following:
Make a manual switch. Test the radio hop.
5.11.3 Alarm Clearance
The alarm is cleared when the internal data rate of the MINI-LINK CN 210 matches the received data rate.
5.12 Dmod Clock (Critical) The Internal data rate of the MINI-LINK CN 210 does not correspond to the received data rate. This fault will cause bit slip in the composite bit stream. Probable causes for the fault: faulty MINI-LINK CN 210 or fading. Applicable for RAU IF (1+0). SpecificProblem
Dmod Clock
Source
RAU IF
AlarmType
EquipmentAlarm
Severity
Critical
ProbableCause
TimingProblem
5.12.1 Consequences Traffic Loss.
5.12.2 Corrective Actions Test the radio hop.
5.12.3 Alarm Clearance The alarm is cleared when the internal data rate of the MINI-LINK CN 210 matches the received data rate.
5.13 Downstream buffer overflow Buffer overflow in the downlink direction. SpecificProblem
Downstream buffer overflow
Source
LAN
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
Unavailable
5.14 ES 15 min threshold crossing Errored Seconds (ES) The Plesiochronous Digital Hierarchy (PDH) ES counter threshold, set for 15 min time window, has been crossed the last 15 minutes. An Errored Second is a one-second period with one or more errored blocks, or at least one defect. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem Source
ES 15 min threshold crossing o o
RAU IF (1+0) SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Minor
ProbableCause
ThresholdCrossed
5.14.1 Consequences This alarm indicates degraded traffic. If the problem continues, it may lead to SES 15 min threshold crossing, see Section 5.58.
5.14.2 Corrective Actions The problem may be temporary, but if the alarm continues over consecutive 15 min intervals, try the following actions: 1. Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). 2. Verify that the received signal power is as expected (by performing a link budget calculation). 3. Check that no interference signal is present. 4. Replace the MINI-LINK CN 210, see Replacing a MINI-LINK CN 210. 5. Replace the RAU, see Replacing a Radio Unit.
5.14.3 Alarm Clearance The alarm is cleared at the next 15 minutes interval where the ES counter threshold no longer is crossed.
5.15 ES 24 h threshold crossing Errored Seconds (ES) The Plesiochronous Digital Hierarchy (PDH) ES counter threshold, set for 24 h time window, has been crossed the last 24 hours. An Errored Second is a one-second period with one or more errored blocks, or at least one defect. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem Source
ES 24 h threshold crossing o o
RAU IF (1+0) SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Minor
ProbableCause
ThresholdCrossed
5.15.1 Consequences This alarm indicates degraded traffic. If the problem continues, it may lead to SES 24 h threshold crossing, see Section 5.59.
5.15.2 Corrective Actions The problem may be temporary, but if the alarm continues over consecutive 24 h intervals, try the following actions: 1. Check if obstacles are placed in the radio path between the two hops' antennas (at clear sky conditions). 2. Verify that the received signal power is as expected (by performing a link budget calculation). 3. Check that no interference signal is present. 4. Replace the MINI-LINK CN 210, see Replacing a MINI-LINK CN 210.
5. Replace the RAU, see Replacing a Radio Unit.
5.15.3 Alarm Clearance The alarm is cleared at the next 24 hours interval where the ES counter threshold no longer is crossed.
5.16 Ethernet Down (Minor) This alarm can be caused by an Ethernet cable problem or a configuration error. SpecificProblem
Ethernet down
Source
Site LAN
AlarmType
CommunicationAlarm
Severity
Minor
ProbableCause
Unavailable
5.16.1 Consequences No Ethernet connection.
5.16.2 Corrective Actions Try the following: 1. 2. 3. 4.
Check that the Ethernet cable is properly connected and that it is not damaged. Check the site LAN port configuration. Check the site LAN port to SWITCH configuration. Check the SWITCH configuration.
5.17 Ethernet Down (Critical) The interface is down. This alarm can be caused by an Ethernet cable problem or a configuration error. SpecificProblem
Ethernet down
Source
LAN
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
Unavailable
5.17.1 Consequences No Carrier Detected on the Ethernet Port.
5.17.2 Corrective Actions Try the following: 1. Check that the Ethernet cable is properly connected and that it is not damaged. 2. Check the site LAN port configuration.
5.17.3 Alarm Clearance The alarm is cleared when a carrier is detected on the Ethernet port.
5.18 Free running mode entered The network synchronization function has entered the free running (hold over) status. SpecificProblem
Free running mode entered
Source
NE
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
LossOfSynchronisation
5.18.1 Consequences The synchronization output signal is squelched.
5.18.2 Corrective Actions No action required.
5.18.3 Alarm Clearance The alarm is cleared when the network synchronization function enters locked status.
5.19 Hardware Error: RAU (Minor) The RAU has a hardware error and must be replaced. SpecificProblem
Hardware Error
Source
RAU
AlarmType
EquipmentAlarm
Severity
Minor
ProbableCause
ReplaceableUnitProblem
5.19.1 Consequences Control system error.
5.19.2 Corrective Actions Replace the RAU, see Replacing a Radio Unit.
5.19.3 Alarm Clearance The alarm is cleared when the faulty unit is replaced.
5.20 Hardware Error: RAU (Critical) The RAU has a hardware error and must be replaced. SpecificProblem
Hardware Error
Source
RAU
AlarmType
EquipmentAlarm
Severity
Critical
ProbableCause
ReplaceableUnitProblem
5.20.1 Consequences Traffic Loss.
5.20.2 Corrective Actions
Replace the RAU, see Replacing a Radio Unit.
5.20.3 Alarm Clearance The alarm is cleared when the faulty unit is replaced.
5.21 Hardware Error: RMM The RMM has a hardware error and must be replaced. SpecificProblem
HW Error
Source
RMM
AlarmType
EquipmentAlarm
Severity
Minor
ProbableCause
ReplaceableUnitProblem
5.21.1 Consequences Entering the grace period, during which all optional features are granted.
5.21.2 Corrective Actions Replace the RMM, see Replacing an RMM.
5.21.3 Alarm Clearance The alarm is cleared when the RMM has been replaced.
5.22 HCC Hop Communication Channel (HCC) Communication is lost on the HCC, between the MINI-LINK CN 210 and the far-end MMU or MINI-LINK CN 210. SpecificProblem
HCC
Source
All MINI-LINK CN 210 units
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
Unavailable
5.22.1 Consequences It is not possible to access the Far End.
5.22.2 Alarm Clearance The alarm is cleared when access to the Far End is recovered.
5.23 High Temperature The unit has reached an abnormal temperature. This can be caused by fan failure, too high ambient temperature, component failure, or air flow blocking. SpecificProblem
High Temperature
Source
MMU
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
HighTemperature
5.23.1 Consequences The control system functions are shut down (operational status Reduced Service). This gives a graceful degradation through controlled protection switch in a 1+1. Alarms are sent in a 1+0, but the traffic is still active.
5.23.2 Corrective Actions Try the following:
Check the ambient temperature and take measures if it is too high. Check for component failure alarms and take care of any problems. Make sure that the air flow is not blocked.
5.23.3 Alarm Clearance
The alarm is cleared when the temperature has been stable for 60 seconds below the high temperature threshold for the unit.
5.24 Hitless Phase Failure of synchronizing of the received traffic in the two MINI-LINK CN 210 units with a duration longer than the time given by Fade Notification Timer. SpecificProblem
Hitless Phase
Source
SWITCH
AlarmType
EquipmentAlarm
Severity
Warning
ProbableCause
ProtectionPathFailure
5.25 ICC Internal Communication Channel (ICC) Communication is lost on the ICC, between two MINI-LINK CN 210 units in the same terminal. Possible cause: the software or hardware of the MINI-LINK CN 210 units is not compatible, or the protection cable has been unplugged. SpecificProblem
ICC
Source
CN 210 Master unit
AlarmType
CommunicationAlarm
Severity
Major
5.25.1 Consequences Unable to Protect.
5.25.2 Corrective Actions Try the following: 1. Check the software and hardware of the MINI-LINK CN 210 units. 2. Upgrade software or replace one MINI-LINK CN 210 to achieve compatibility.
5.25.3 Alarm Clearance The alarm is cleared when communication is recovered.
5.26 Insufficient resources The NE does not have the resources to handle this unit. SpecificProblem
Insufficient resources
Source
RAU slot
AlarmType
EquipmentAlarm
Severity
Critical
ProbableCause
ReplaceableUnitTypeMismatch
5.27 LOS: RAU IF (Major) Loss of Signal (LOS) LOS is detected on the incoming traffic, probably due to traffic failure in transmitting direction. Applicable for RAU IF (1+1). SpecificProblem
LOS
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
LossOfSignal
5.28 LOS (Critical) Loss of Signal (LOS) LOS is detected on the incoming traffic, probably due to traffic failure in transmitting direction. SpecificProblem Source
LOS o
E1
o
MS/RS
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
LossOfSignal
5.28.1 Consequences The service is unavailable.
5.28.2 Corrective Actions Check cables and equipment in the traffic path.
5.28.3 Alarm Clearance The alarm is cleared when traffic is detected in the incoming signal.
5.29 LOS: RAU IF (Critical) Loss of Signal (LOS) LOS is detected on the incoming traffic, probably due to traffic failure in transmitting direction. Applicable for RAU IF (1+0). SpecificProblem
LOS
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
LossOfSignal
5.30 Low Input Voltage The input voltage is low. If it drops further, one or more units may stop working. SpecificProblem
Low Input Voltage
Source
NE
AlarmType
EnvironmentalAlarm
Severity
Major
ProbableCause
PowerProblem
5.31 Mod Index The modulation index of the MINI-LINK CN 210, controlled by the far-end MMU or MINILINK CN 210, is out of the allowed range. SpecificProblem
Mod Index
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
DegradedSignal
5.32 Node Installation The NE is in Node Installation mode. Enter the URL http://10.0.0.1 to reach the installation wizard. SpecificProblem
Node Installation
Source
NE
AlarmType
EquipmentAlarm
Severity
Minor
ProbableCause
CommunicationsSubsystemFailure
5.33 No Traffic No Ethernet traffic received from far end terminal. SpecificProblem
No Traffic
Source
RL-IME
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
Unavailable
5.34 Power Failure (upper input port) Missing power at the DC upper connector. SpecificProblem
Power Failure (upper input connector)
Source
NE
AlarmType
EnvironmentalAlarm
Severity
Major
ProbableCause
PowerProblem
5.35 Power Failure (lower input port) Missing power at the DC lower connector. SpecificProblem
Power Failure (lower input connector)
Source
NE
AlarmType
EnvironmentalAlarm
Severity
Major
ProbableCause
PowerProblem
5.36 Power Failure (upper input port) Slave Missing power at the DC upper connector. SpecificProblem
Power Failure (upper input connector) Slave
Source
NE
AlarmType
EnvironmentalAlarm
Severity
Major
ProbableCause
PowerProblem
5.37 Power Failure (lower input port) Slave Missing power at the DC lower connector. SpecificProblem
Power Failure (lower input connector) Slave
Source
NE
AlarmType
EnvironmentalAlarm
Severity
Major
ProbableCause
PowerProblem
5.38 PPP down Failure in the Data Communication Network (DCN) communication. SpecificProblem
PPP down
Source
PPP
AlarmType
CommunicationAlarm
Severity
Minor
ProbableCause
Unavailable
5.39 RAU Power Supply Changed The RAU power supply has changed automatically because the MMU has detected undervoltage or bad grounding. SpecificProblem
RAU power supply changed
Source
MMU
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
PowerProblem
5.39.1 Consequences DC bypass is turned off and the power supply provides the RAU with +57 V DC.
5.39.2 Corrective Actions Repair the power supply unit or fix the grounding problem.
5.39.3 Alarm Clearance The alarm is cleared when the MMU no longer detects undervoltage or bad grounding.
5.40 Radio Frame (Major) The receiver failed to synchronize the frame of the received composite bit stream due to signal failure. Applicable for RAU IF (1+1). SpecificProblem
Radio Frame
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
LossOfFrame
5.41 Radio Frame (Critical) The receiver failed to synchronize the frame of the received composite bit stream due to signal failure. Applicable for RAU IF (1+0). SpecificProblem
Radio Frame
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
LossOfFrame
5.42 Radio ID (Major) The received traffic comes from a terminal with an ID not matching the Far End ID. Possible causes for this is:
Wrong Radio ID has been set in either near-end or far-end terminal. The antenna alignment is incorrect and the near-end radio receives a signal from another radio on the same frequency.
Applicable for RAU IF (1+1). SpecificProblem
Radio ID
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
PathTraceMismatch
5.42.1 Consequences The protection is lost.
5.42.2 Corrective Actions Perform the following actions: 1. Check Radio ID on both near-end and far-end terminal 2. If Radio ID is correct on both near-end and far-end, check antenna alignment. 3. Perform an interference check by measuring input receive level when far-end transmitter is turned off.
5.42.3 Alarm Clearance The alarm is cleared when correct Radio ID is set, or if Remote ID check is disabled.
5.43 Radio ID (Critical) The received traffic comes from a terminal with an ID not matching the Far End ID. Possible causes for this is:
Wrong Radio ID has been set in either near-end or far-end terminal.
The antenna alignment is incorrect and the near-end radio receives a signal from another radio.
Applicable for RAU IF (1+0). SpecificProblem
Radio ID
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
PathTraceMismatch
5.43.1 Consequences No connection with far-end and traffic loss.
5.43.2 Corrective Actions Perform the following actions: 1. Check Radio ID on both near-end and far-end terminal. 2. If Radio ID is correct on both near-end and far-end, check antenna alignment. 3. Perform an interference check by measuring input receive level when far-end transmitter is turned off.
5.43.3 Alarm Clearance The alarm is cleared when correct Radio ID is set, or if Remote ID check is disabled.
5.44 RCC (Major) Radio Communication Channel (RCC) Communication is lost on the RCC, between the MINI-LINK CN 210 and the RAU. SpecificProblem
RCC
Source
All MINI-LINK CN 210 units
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
Unavailable
5.44.1 Consequences Transmitter is switched off which results in traffic loss.
5.45 Remote Tx Switch Over An active radio switch ordered from far-end. Only valid in Hot Standby. SpecificProblem
Remote Tx Switch Over
Source
SWITCH
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
ProtectionPathFailure
5.46 Reserved Position The unit in this position is of a different type than the position is reserved for. SpecificProblem
Reserved Position
Source
RAU
AlarmType
EquipmentAlarm
Severity
Critical
ProbableCause
ReplaceableUnitTypeMismatch
5.47 RF Input Level (Major) The received Radio Frequency (RF) input signal level has dropped below the threshold for the receiver. Applicable for RF (1+1). SpecificProblem
RF Input Level
Source
RF (1+1)
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
ReceiverFailure
5.48 RF Input Level (Critical) The received Radio Frequency (RF) input signal level has dropped below the threshold for the receiver. Applicable for RF (1+0). SpecificProblem
RF Input Level
Source
RF
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
ReceiverFailure
5.49 RF Input Threshold The Radio Frequency (RF) input level has dropped below the RF Input Alarm Threshold. SpecificProblem Source
RF Input Threshold o o
RF SWITCH
AlarmType
CommunicationAlarm
Severity
Warning
ProbableCause
DegradedSignal
5.50 RF Input Threshold Protection The Radio Frequency (RF) input level of both receivers in a protected terminal has dropped below their respective RF Input Alarm Threshold.
SpecificProblem
RF Input Threshold Protection
Source
SWITCH
AlarmType
CommunicationAlarm
Severity
Warning
ProbableCause
DegradedSignal
5.51 RF Output Level (Major) A major degradation of transmitter output power is detected. Applicable for RAU IF (1+1) standby transmitter. SpecificProblem
RF Output Level
Source
RF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
TransmitterFailure
5.52 RF Output Level (Critical) The receiver frequency synthesizer loop is unlocked. Applicable for RAU IF (1+0) and RAU IF (1+1) active transmitter. SpecificProblem
RF Output Level
Source
RF
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
TransmitterFailure
5.53 Running configuration not accepted The MINI-LINK CN 210 or RAU could not accept the running configuration; the service LED is flashing. The unit could also be subject to a software upgrade.
SpecificProblem
Running configuration not accepted
Source
o o
All MINI-LINK CN 210 units All RAUs
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
ReplaceableUnitTypeMismatch
5.53.1 Corrective Actions Remove board or clear reservation.
5.54 Rx AFC The frequency of the received signal is outside the range of the Automatic Frequency Control (AFC) in the RAU receiver. SpecificProblem
Rx AFC
Source
RF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
ReceiverFailure
5.55 RX Frequency (Major) The receiver frequency synthesizer loop is unlocked. Applicable for RF (1+1). SpecificProblem
RX Frequency
Source
RF (1+1)
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
ReceiverFailure
5.56 RX Frequency (Critical) The receiver frequency synthesizer loop is unlocked. Applicable for RF (1+0). SpecificProblem
RX Frequency
Source
RF (1+0)
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
ReceiverFailure
5.57 Rx IF Input Failure on the receiver Intermediate Frequency (IF) signal from the RAU to the MINI-LINK CN 210. SpecificProblem
Rx IF Input
Source
RAU IF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
ReceiverFailure
5.58 SES 15 min threshold crossing Severely Errored Seconds (SES) SES threshold crossing for 15 minutes composite performance monitoring. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem
SES 15 min threshold crossing
Source
o o
RAU IF SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Major
ProbableCause
ThresholdCrossed
5.59 SES 24 h threshold crossing Severely Errored Seconds (SES) SES threshold crossing for 24 hours composite performance monitoring. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1). SpecificProblem
SES 24 h threshold crossing
Source
o o
RAU IF SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Major
ProbableCause
ThresholdCrossed
5.60 Squelch threshold reached The quality level of the synchronization reference has reached the Squelch quality level. SpecificProblem
Squelch threshold reached
Source
NE
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
LossOfSynchronisation
5.60.1 Consequences The synchronization output signal is squelched.
5.60.2 Corrective Actions No action required.
5.60.3 Alarm Clearance The alarm is cleared when the synchronization reference reaches a quality level above the Squelch quality level.
5.61 TX Frequency (Major) Transmitter frequency synthesizer loop is unlocked. Applicable for RAU IF (1+1). SpecificProblem
TX Frequency
Source
RF
AlarmType
CommunicationAlarm
Severity
Major
ProbableCause
TransmitterFailure
5.62 TX Frequency (Critical) Transmitter frequency synthesizer loop is unlocked. Applicable for RAU IF (1+0). SpecificProblem
TX Frequency
Source
RF
AlarmType
CommunicationAlarm
Severity
Critical
ProbableCause
TransmitterFailure
5.63 Tx IF Input (Major) Failure on the received Intermediate Frequency (IF) signal from the MINI-LINK CN 210 to the RAU. Applicable for RAU IF (1+1). SpecificProblem
Tx IF Input
Source
RAU IF
AlarmType
Communication
Severity
Major
ProbableCause
TransmitterFailure
5.64 Tx IF Input (Critical) Failure on the received Intermediate Frequency (IF) signal from the MINI-LINK CN 210 to the RAU. Applicable for RAU IF (1+0). SpecificProblem
Tx IF Input
Source
RAU IF
AlarmType
Communication
Severity
Critical
ProbableCause
TransmitterFailure
5.65 TX Switch Over SpecificProblem
TX Switch Over
Source
SWITCH
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
ProtectionPathFailure
5.66 Unable to Protect: SWITCH (Major) The system is no longer able to provide protection of the radio side, due to:
A Tx alarm on one path. A common Tx/Rx alarm on one path. An Rx alarm on one path and the duration is longer than 200 s (default value).
SpecificProblem
Unable to Protect
Source
SWITCH
AlarmType
EquipmentAlarm
Severity
Major
ProbableCause
ProtectionPathFailure
5.67 Unable to Protect: SWITCH (Critical) The system is no longer able to provide protection of the radio side, due to:
A Tx alarm on both paths. A common Tx/Rx alarm on both paths. An Rx alarm on both paths and the duration is longer than 200 s (default value).
SpecificProblem
Unable to Protect
Source
SWITCH
AlarmType
EquipmentAlarm
Severity
Critical
ProbableCause
ProtectionPathFailure
5.68 Unavailable Period The Plesiochronous Digital Hierarchy (PDH) Unavailable Period counter threshold has been crossed, due to possible radio propagation problem. Applicable for RAU IF (1+0). Applicable for SWITCH (1+1).
SpecificProblem Source
Unavailable Period o o
RAU IF SWITCH
AlarmType
QualityOfServiceAlarm
Severity
Major
ProbableCause
PerformanceDegraded
5.69 Unit Inaccessible: Slave MMU The unit is not accessible. SpecificProblem
Unit Inaccessible
Source
Slave MMU
AlarmType
EquipmentAlarm
Severity
Critical
ProbableCause
Unavailable
5.70 Unit Inaccessible: RMM The RMM is not accessible because of a fault or because no RMM is present. SpecificProblem
Unit Inaccessible
Source
RMM
AlarmType
EquipmentAlarm
Severity
Minor
ProbableCause
ReplaceableUnitProblem
5.70.1 Consequences Entering the grace period, during which all optional features are granted.
5.70.2 Corrective Actions
Replace the RMM, see Replacing an RMM.
5.70.3 Alarm Clearance The alarm is cleared when access to the RMM has been restored.
5.71 Unsupported RMM variant - connect FTP server and do upgrade The hardware variant of the RMM is not supported by the software. SpecificProblem
Unsupported RMM variant - connect FTP server and do upgrade
Source
RMM
AlarmType
EquipmentAlarm
Severity
Minor
ProbableCause
SoftwareEnvironment
5.71.1 Consequences Entering the grace period, during which all optional features are granted.
5.71.2 Corrective Actions Upgrade the software to a version that supports the new RMM hardware variant, see Upgrading or Downgrading a SW Load Module.
5.71.3 Alarm Clearance The alarm is cleared when the software has been upgraded to a version that supports the new RMM hardware variant.
5.72 Unsupported Unit Type The unit type is not supported by the software. SpecificProblem Source AlarmType
Unsupported Unit Type o
RAU
EquipmentAlarm
Severity
Critical
ProbableCause
ReplaceableUnitTypeMismatch
5.73 Missing License The License is missing. SpecificProblem
Missing License
Source
NE
AlarmType
OperationalViolation
Severity
Critical
ProbableCause
DenialOfService
5.74 User I/O The Specific Problem and Severity can be found on the User I/O Ports page SpecificProblem
User input
Source
User Input
AlarmType
EnvironmentalAlarm
Severity
User Defined
ProbableCause
Reference List [1] Accessing a Network Element, 59/1543-100/CSH 109 32/1-V3 [2] Fault Management Operations, 1/1543-100/CSH 109 32/1-V3 [3] Installing Outdoor Equipment, 19/1531-100/CSH 109 32/1-V3 [4] MINI-LINK Craft User Interface Descriptions, 22/1551-100/CSH 109 32/1-V3 [5] Personal Health and Safety Information, 124 46-2886 [6] Replacing a MINI-LINK CN 210, 7/1543-100/CSH 109 32/1-V3 [7] Replacing an RMM, 9/1543-100/CSH 109 32/1-V3
[8] Replacing a Radio Unit, 10/1543-100/CSH 109 32/1-V3 [9] Supplementary Safety Information for MINI-LINK, 124 46-HSD 101 16/2 [10] System Safety Information, 124 46-2886 [11] Upgrading or Downgrading a SW Load Module, 58/1543-100/CSH 109 32/1-V3 Alarm Descriptions
MINI-LINK CN 210 ETSI
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