FlexWave Element Management System. Alarm Reference FWPP May 2017

FlexWave Element Management System Alarm Reference May 2017

DISCLAIMER This document has been developed by CommScope, and is intended for the use of its customers and customer support personnel. The information in this document is subject to change without notice. While every effort has been made to eliminate errors, CommScope disclaims liability for any difficulties arising from the interpretation of the information contained herein. The information contained herein does not claim to cover all details or variations in equipment, nor to provide for every possible incident to be met in connection with installation, operation, or maintenance. This document describes the performance of the product under the defined operational conditions and does not cover the performance under adverse or disturbed conditions. Should further information be desired, or should particular problems arise which are not covered sufficiently for the purchaser's purposes, contact CommScope. CommScope reserves the right to change all hardware and software characteristics without notice. COPYRIGHT 2017 CommScope, Inc. All Rights Reserved. All trademarks identified by or are registered trademarks or trademarks, respectively, of CommScope, Inc. This document is protected by copyright. No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical photocopying, recording, or otherwise without the prior written permission of CommScope. OTHER TRADEMARKS Names of other products mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies.

TABLE OF CONTENTS Document Overview...1 Document Revision History...1 Document Cautions and Notes...1 Abbreviations Used in this Alarm Reference...2 Finding an Alarm in this Reference...3 Unit Types...3 Understanding Alarm Codes...4 Alarms and DRUs Versus HEUs...4 Alphabetical List of Alarms...5 DCCS Global Technical Support...146 Telephone Helplines...146 Online Support...146 DCCS Technical Training...147 Accessing FlexWave User Documentation...148 Accessing Prism User Documentation...148 Accessing Spectrum User Documentation...148 Index of Alarms...149 Index of Alarm Codes...150 Index of Traps...151 May 2017 CommScope, Inc. Page iii

Table of Contents Page iv May 2017 CommScope, Inc.

D OCUMENT OVERVIEW This reference guide lists the alarms that the FlexWave Element Management System (EMS) can generate. To assist you in troubleshooting a FlexWave system, a remedy for each alarm is also provided. This section tells you how to use this document. DOCUMENT REVISION HISTORY This is the second release of this document; it updates the definitions of the following alarms: "DART Fault on page 31 (Host Units), Alarm Code AC29, trap fwuhstdartfault "DART Fault on page 32 (Remote Units), Alarm Code AC101, trap fwurmtdartfault "RF Power Low on page 131, Alarm Code AC114, trap fwurmtrfpowerfault DOCUMENT CAUTIONS AND NOTES Two types of messages, identified below, may appear in the text: CAUTION! NOTE: Caution text indicates operations or steps that could cause personal injury, induce a safety problem in a managed device, destroy or corrupt information, or interrupt or stop services. Note text contains information about special circumstances. May 2017 CommScope, Inc. Page 1

Document Overview ABBREVIATIONS USED IN THIS ALARM REFERENCE AC Alternating Current IP Internet Protocol ALC Automatic Level Control IR Intermediate Reach Amp Amplifier LED Light-Emitting Diode BBU Baseband Unit LNA Low Noise Amplifier BER Bit Error Rate LPA Linear Power Amplifier BTS Base Transceiver Station LR Long Reach C Centigrade LVDS Low-Voltage Differential Signaling Cal Calibration MHz Megahertz CATV Community Activity Television MIB Management Information Base CDIU CPRI Digital Interface Unit MRAU Main Remote Access Unit CPRI Common Public Radio Interface PA Power Amplifier DART Digital Analog RF Transport PD Power Detector DART Digital-Analog Radio Transceiver PLL Phase-Locked Loop db Decibel PRU Prism Remote Unit dbfs Decibels relative to full scale PSU Power Supply Unit dbm Decibel-milliwatts RAI Remote Alarm Indication DC Direct Current RAU Remote Access Unit DCCS Distributed Coverage and Capacity Solutions RDI Remote DART Interface DRU DART Remote Unit REC Radio Equipment Controller EEPROM Electrically Erasable Programmable Read-Only Memory REF Reference EMEA Europe, Middle East, Africa REV Reverse EMG Expansion Module Group RF Radio Frequency EMS Element Management System Rx Receive F Fahrenheit SDI Slave Link Downstream Indication FPGA Field Programmable Gate Array SeRF Serial RF Freq Frequency SFP Small Form-Factor Pluggable FRU Fullband Remote Unit SNMP Simple Network Management Protocol FWD Forward SRAU Secondary Remote Access Unit GUI Graphical User Interface Tx Transmit HDM High Density Module URU Universal Radio Head Remote Unit HEU Host Expansion Unit Vdc Volts, direct current IF Intermediate Frequency VSWR Voltage Standing Wave Ratio IFEU IF Expansion Unit Page 2 May 2017 CommScope, Inc.

Document Overview FINDING AN ALARM IN THIS REFERENCE This document lists FlexWave alarms in alphabetical order by alarm name. However, you can also use the following document tools to find an alarm: Use the alphabetical "Index of Alarms on page 149 to locate an alarm definition quickly. Use the "Index of Alarm Codes on page 155 to find an alarm by its alarm code. Use the "Index of Traps on page 161 to find an alarm by its trap name. Alarm Reference Format The alarm reference uses the format shown below to list and define the FlexWave alarms and alarm remedies. Lists the user-readable alarm name, such as: Fan Fault Lists the unique alpha-numeric code assigned to the alarm by CommScope, such as AC1 or RUJ014. Lists the unique SNMP trap name assigned to the alarm. Note that the EMS GUI does not show trap names. This alarm reference provides traps for those who use an SNMP MIB browser to troubleshoot a FlexWave system. Traps are in the format of: fwuhstdartdcsupplyfault Identifies which unit and module has an alarm state, such as: Host Unit SeRF. Provides the meaning of the alarm and includes alarm thresholds, when applicable. Provides information as to what can cause the alarm, and the impact or affect that the alarm condition can have on the alarmed unit or system. Provides information on how to troubleshoot and clear the alarm. Identifies whether the alarm has a major, minor, or user-configurable alarm severity. UNIT TYPES The FlexWave EMS alarms are applicable to the following Prism and Spectrum units. Host Units Remote Units DART Remote Units (DRUs) Fullband Remote Units (FRUs), which are represented as PRU in the EMS GUI Host Expansion Units (HEUs) Prism Remote Units (PRUs). IF Expansion Units (IFEUs) Remote Access Units (RAUs). NOTE: Should a Remote Unit alarm not be applicable to all of the Remote Unit types, the alarm definition identifies the exception(s). May 2017 CommScope, Inc. Page 3

Document Overview UNDERSTANDING ALARM CODES For Host Units, HEUs, DRUs, FRUs, and PRUs, the alarm code comprises the letters AC followed by a numerical identifier unique to that alarm. For IFEUs and RAUs, the alarm codes indicate the following: 1st character identifies if the alarm is applicable to an IFEU or RAU I = IFEU R = RAU. 2nd character identifies the module type. If the alarm is applicable to an IFEU, the second character identifies the IFEU Module that is in an alarm state C = Controller Module F = FWD Module R = REV Module P = Power Module. If the alarm is applicable to a RAU, the second character is U. 3rd character identifies the alarm severity level J = N =. 4th - 6th characters a numerical identifier unique to that alarm. The alarm code ICN010 therefore indicates that the alarm is applicable to the IFEU Controller Module and that it is a minor alarm. ALARMS AND DRUS VERSUS HEUS In the System Tree, an HEU is identified as a DRU. However, as DRUs and HEUs should not be in the same system (HEUs can only be installed in a Prism Host-to-Host system), this should not cause confusion. In the EMS pages, an HEU can be identified as an HEU, an HEU Remote, or as a Remote. With the exceptions noted below, generic alarms that correspond to Remote Units also apply to the HEU. The DRU Temperature High alarm is generated when the ambient temperature for an HEU SeRF Module goes over 50 C. The DRU Temperature Low alarm is generated when the ambient temperature for an HEU SeRF Module goes below -5 C. HEUs do not support the Uplink Inactivity Fault. HEUs do not have LPAs, LNAs and PDs. Consequently, there will be no Remote Unit alarms related to Linear Power Amplifier (LPA), LNA and PD modules for HEUs. Page 4 May 2017 CommScope, Inc.

A LPHABETICAL LIST OF ALARMS 24 Vdc Out of Range ICN010 irsifeu24vdcfault IFEU Controller Module The internal 24 Vdc voltage of the IFEU Controller Module is outside of specification. This alarm state does not affect service to the IFEU. Replace the affected IFEU Controller Module. 3 Vdc Out of Range ICN011 irsifeu3vdcfault IFEU Controller Module The internal 3 Vdc voltage of the IFEU's Controller Module is outside of specification. This alarm state does not affect service to the IFEU. Replace the affected IFEU's Controller Module. 5 Vdc Out of Range ICN009 irsifeu5vdcfault IFEU Controller Module The internal 5 Vdc voltage of the IFEU's Controller Module is outside of specification. This alarm state does not affect service to the IFEU. Replace the affected IFEU's Controller Module. May 2017 CommScope, Inc. Page 5

54 Vdc Out of Range ICN013 irsifeu54vdcfault IFEU Controller Module The internal 54 Vdc voltage of the IFEU's Controller Module is outside of specification. This alarm state does not affect service to the IFEU. Replace the affected IFEU's Controller Module. 6 Vdc Out of Range ICN012 irsifeu6vdcfault IFEU Controller Module The internal 6 Vdc voltage of the IFEU's Controller Module is outside of specification. This alarm state does not affect service to the IFEU. Replace the affected IFEU's Controller Module. Antenna Port 1 Disconnect RUJ013 irsrauantennadisconnectport1fault Remote Access Unit Antenna disconnected or connected incorrectly (Ant Port 1). High VSWR detected for Antenna Port 1 during System Test, possibly resulting in loss of service for that band. Check the RAU Antenna Port 1 and antenna lead for correct frequency/band, and then retry System Test (System Configuration > Perform System Test). If alarm persists, connect a 50-Ohm terminator in place of the antenna and rerun System Test. If alarm persists with a 50-Ohm terminator, replace the RAU, otherwise replace the antenna. Page 6 May 2017 CommScope, Inc.

Antenna Port 1 Disconnect RUN013 irsrauantennaport1disconnectfault Remote Access Unit Antenna disconnected or connected incorrectly (Ant Port 1). Alphabetical List of Alarms High VSWR detected for Antenna Port 1 during System Test, possibly resulting in loss of service for that band. Check the RAU Antenna Port 1 and antenna lead for correct frequency/band, and then retry System Test (System Configuration > Perform System Test). If alarm persists, connect a 50-Ohm terminator in place of the antenna and rerun System Test. If alarm persists with a 50-Ohm terminator, replace the RAU, otherwise replace the antenna. Antenna Port 2 Disconnect RUJ014 irsrauantennadisconnectport2fault Remote Access Unit Antenna disconnected or connected incorrectly (Ant Port 2). High VSWR detected for Antenna Port 2 during System Test, possibly resulting in loss of service for that band. Check the RAU Antenna Port 2 and antenna lead for correct frequency/band, and then retry System Test (System Configuration > Perform System Test). If alarm persists, connect a 50-Ohm terminator in place of the antenna and rerun System Test. If alarm persists with a 50-Ohm terminator, replace the RAU, otherwise replace the antenna. Antenna Port 2 Disconnect RUN014 irsrauantennaport2disconnectfault Remote Access Unit Antenna disconnected or connected incorrectly (Ant Port 2). High VSWR detected for Antenna Port 2 during System Test, possibly resulting in loss of service for that band. Check the RAU Antenna Port 2 and antenna lead for correct frequency/band, then retry System Test (System Configuration > Perform System Test). If alarm persists, connect a 50-Ohm terminator in place of the antenna and rerun System Test. If alarm persists with a 50-Ohm terminator, replace the RAU, otherwise replace the antenna. May 2017 CommScope, Inc. Page 7

Band Commanded Lockout The Alarm Code and Trap are dependent on the RAU type and band that is alarming. The GUI identifies the actual band in alarm. Within an SNMP browser, the Trap indicates the affected path, as shown in the following table. Alarm Code Trap Path RUJ049 irsraubandpath1abandcommandedlockoutfault 1A RUJ050 irsraubandpath2abandcommandedlockoutfault 2A RUJ051 irsraubandpath3abandcommandedlockoutfault 3A RUJ052 irsraubandpath1bbandcommandedlockoutfault 1B RUJ053 irsraubandpath2bbandcommandedlockoutfault 2B RUJ054 irsraubandpath3bbandcommandedlockoutfault 3B Remote Access Unit The identified RAU band has been commanded out-of-service by user. Loss of service for the identified RAU band. To set the identified RAU band back in service, remove the check mark from the Lockout check box on the Unit Configuration > Edit Properties page. Band Fault Lockout The Alarm Code and Trap are dependent on the RAU type and band that is alarming. The GUI identifies the actual band in alarm. Within an SNMP browser, the Trap indicates the affected path, as shown in the following table. Alarm Code Trap Path RUJ057 irsraubandpath1abandfaultlockoutfault 1A RUJ058 irsraubandpath2abandfaultlockoutfault 2A RUJ059 irsraubandpath3abandfaultlockoutfault 3A RUJ060 irsraubandpath1bbandfaultlockoutfault 1B RUJ061 irsraubandpath2bbandfaultlockoutfault 2B RUJ062 irsraubandpath3bbandfaultlockoutfault 3B IFEU Controller Module Band commanded shutdown due to an active major alarm in a unit that is upstream (closer to the Host Unit). Loss of service for this band in the IFEU due to an active major alarm in an upstream unit. Check the Host Unit and DRU DARTs for major alarms (Alarms > View Current Alarms). Page 8 May 2017 CommScope, Inc.

Brownout Reset ICJ006 irsifeubrownoutresetfault IFEU Controller Module IFEU microprocessor brownout reset occurred and recovered. This alarm state does affect service to the IFEU. If this happens repeatedly, replace the IFEU Controller Module. Brownout Reset RUJ006 irsraubrownoutresetfault Remote Access Unit RAU microprocessor brownout reset occurred and recovered. This alarm state does not affect service to the RAU. If this happens repeatedly, replace the RAU. Cal Tone Not Present (Port 1) IFN025 irsifeuport1caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 1). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 1. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. May 2017 CommScope, Inc. Page 9

Cal Tone Not Present (Port 2) IFN026 irsifeuport2caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 2). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 2. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. Cal Tone Not Present (Port 3) IFN027 irsifeuport3caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 3). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 3. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. Cal Tone Not Present (Port 4) IFN028 irsifeuport4caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 4). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 4. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. Page 10 May 2017 CommScope, Inc.

Cal Tone Not Present (Port 5) IFN029 irsifeuport5caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 5). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 5. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. Cal Tone Not Present (Port 6) IFN030 irsifeuport6caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 6). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 6. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. Cal Tone Not Present (Port 7) IFN031 irsifeuport7caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 7). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 7. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. May 2017 CommScope, Inc. Page 11

Cal Tone Not Present (Port 8) IFN032 irsifeuport8caltonenotpresentfault IFEU FWD Module Calibration test tone is not present (FWD IF OUT Port 8). Possible forward path failure, resulting in degraded or loss of service for RAUs connected to the FWD IF OUT Port 8. Run a System Test (System Configuration > Perform System Test). If alarm persists, replace the IFEU FWD Module. Cannot Power Up SRAU(s) RUJ022 irsraucantpowerupsraufault Remote Access Unit DC Voltage too low to power up SRAUs. Loss of service for affected SRAUs. Ensure that the IFEU power supply output is 54V. In the Unit Menu bar, click Diagnostics > Analyze RAU DC Voltage to see how close the DC voltage level is to the alarm threshold. Try connecting the MRAU to another IFEU FWD/REV port. If alarm persists, then check DC loss on FWD and REV CATV cables; otherwise do not use the previous port and replace the IFEU when possible. If high DC loss is measured on CATV cables, replace both cables with lower loss ones, or if length is the issue, use RG11 CATV cables. If alarm still remains, replace the MRAU. CDIU CPRI Port 1 Carrier Configuration Mismatch AC227 fwuhstcdiuport1carriercfgfault Host Unit CDIU A carrier configured by the REC on CDIU CPRI Port 1 does not fall completely within the frequency range of the mapped Path's passband. The CDIU Path was configured with a passband that does not match the REC carrier frequency range. RF is muted. Unlink the CDIU Path. Change the passband so that it includes the entire carrier frequency range and link the CDIU Path. Page 12 May 2017 CommScope, Inc.

CDIU CPRI Port 1 Module Missing Fault AC212 fwuhstcdiuport1optmissingfault Host Unit CDIU CDIU CPRI port 1 SFP is either not present or not responding. Loss of forward and reverse RF. Insert or replace the SFP. CDIU CPRI Port 1 Optical Over Drive AC208 fwuhstcdiuport1optoverdrivefault Host Unit CDIU CDIU CPRI Port 1 SFP optical receive input power above specification; the threshold is 1 dbm (IR) /-9dBm (LR). Missing or faulty optical attenuator, which can cause degradation or loss of RF. Reduce the optical receive level by adding optical attenuation. Replace optical attenuator if faulty. CDIU CPRI Port 1 Optical Rx High BER AC209 fwuhstcdiuport1optrxberfault Host Unit CDIU High bit error rate (BER) detected by fiber-optic receiver on CDIU CPRI Port 1; the threshold is 0.00001. Optical over-drive, dirty fiber-optic connection(s), or bend radius on the fiber-optic cable is exceeded. It is also possible that the SFP may be faulty. RF is affected. First check that the CDIU Rate (System Information > Configure CDIU Interfaces) is compatible with the connected BBU. If the CPRI Rate is correct then check for optical overdrive conditions (Unit Information > View Optical Ports). If RX Power is above specification, add external optical attenuation. If RX Power is below specification, remove attenuation. If problem remains, first ensure that the fiber-optic connection(s) between the CDIU and upstream unit are clean and fully seated, and then check for kinks or sharp bends in the fiber-optic cable. If unable to clear the alarm or correct any problems found, replace the fiber-optic cable. Check SFP and replace, if necessary. May 2017 CommScope, Inc. Page 13

CDIU CPRI Port 1 Optical Rx No Light AC210 fwuhstcdiuport1optrxnolightfault Host Unit CDIU No signal detected by optical receiver on CDIU CPRI Port 1. Unclean or missing fiber-optic cable, which can cause degradation or loss of RF. Check for broken fiber-optic cable, and replace if found. Check for disconnected fiber-optic cable, and reconnect cable if necessary. Check that the BBU has power. CDIU CPRI Port 1 Optical Transmitter Fault AC211 fwuhstcdiuport1optlaserfault Host Unit CDIU CDIU CPRI Port 1 SFP optical transmitter has failed, which affects RF service. Faulty SFP, which can cause degradation or loss of RF. Replace the SFP. CDIU CPRI Port 1 Optical Under Drive AC207 fwuhstcdiuport1optunderdrivefault Host Unit CDIU CDIU CPRI Port 1 SFP optical receive input power is below specification; the threshold is -18 dbm (IR) /-27 dbm (LR). Missing or faulty optical attenuator. Dirty fiber-optic connection or incorrect SFP type. Degradation or loss of RF. Check fiber-optic cable for too much attenuation and/or dirty connections. Check SFP type (wavelength or LR) being used. Replace the SFP if it is the wrong type. Page 14 May 2017 CommScope, Inc.

CDIU CPRI Port 1 REC Communication Fault AC225 fwuhstcdiuport1commsfault Host Unit CDIU Control and management channel with the REC on CDIU CPRI Port 1 has failed. REC has stopped managing the CDIU. RF is muted. Check REC status and its fiber-optic cable connection to CDIU. Verify REC Type configuration. CDIU CPRI Port 1 REC Type Configuration Mismatch AC226 fwuhstcdiuport1rectypecfgfault Host Unit CDIU User configured REC type on CDIU CPRI Port 1 is not supported by the CDIU. CDIU has been replaced. New CDIU does not support the configured REC Type. RF is muted. Replace CDIU. Update firmware on CDIU. Configure a different REC type. CDIU CPRI Port 1 Remote Alarm Indication (RAI) AC223 fwuhstcdiuport1raifault Host Unit CDIU The Remote Alarm Indication (RAI) bit is set in the received CPRI frame from the REC on CDIU CPRI Port 1. The upstream unit has detected a problem with the upstream fiber-optic cable. RF is muted. Check for problems with the uplink fiber-optic cable. May 2017 CommScope, Inc. Page 15

CDIU CPRI Port 1 Slave Link Downstream Indication (SDI) AC224 fwuhstcdiuport1sdifault Host Unit CDIU The Slave Link Downstream Indication (SDI) bit is set in the received CPRI frame from the REC on CDIU CPRI Port 1. There is a problem with fiber-optic communication in the cascade upstream of the CDIU. RF is muted. Check the fiber-optic cable on units upstream of the CDIU. CDIU CPRI Port 2 Carrier Configuration Mismatch AC234 fwuhstcdiuport2carriercfgfault Host Unit CDIU A carrier configured by the REC on CDIU CPRI Port 2 does not fall completely within the frequency range of the mapped Path's passband. The CDIU Path was configured with a passband that does not match the REC carrier frequency range. RF is muted. Unlink the CDIU Path. Change the passband so that it includes the entire carrier frequency range and link the CDIU Path. CDIU CPRI Port 2 Module Missing Fault AC220 fwuhstcdiuport2optmissingfault Host Unit CDIU CDIU CPRI port 2 SFP is either not present or not responding. Loss of forward and reverse RF. Insert or replace the SFP. Page 16 May 2017 CommScope, Inc.

CDIU CPRI Port 2 Optical Over Drive AC216 fwuhstcdiuport2optoverdrivefault Host Unit CDIU Alphabetical List of Alarms CDIU CPRI Port 2 SFP optical receive input power above specification; the threshold is 1 dbm (IR) /-9dBm (LR). Missing or faulty optical attenuator, which can cause degradation or loss of RF. Reduce the optical receive level by adding optical attenuation. Replace optical attenuator if faulty. CDIU CPRI Port 2 Optical Rx High BER AC217 fwuhstcdiuport2optrxberfault Host Unit CDIU High bit error rate (BER) detected by fiber-optic receiver on CDIU CPRI Port 2; the threshold is 0.00001. Optical over-drive, dirty fiber-optic connection(s), or bend radius on the fiber-optic cable is exceeded. It is also possible that the SFP may be faulty. RF is affected. Check for optical overdrive conditions (Unit Information > View Optical Ports). If Rx Power is above specification, add external optical attenuation. If Rx Power is below specification, remove attenuation. If problem remains, first ensure that the fiber-optic connection(s) between the CDIU and upstream unit are clean and fully seated, and then check for kinks or sharp bends in the fiber-optic cable. If unable to clear the alarm or correct any problems found, replace the fiber-optic cable. Check SFP and replace, if necessary. CDIU CPRI Port 2 Optical Rx No Light AC218 fwuhstcdiuport2optrxnolightfault Host Unit CDIU No signal detected by optical receiver on CDIU CPRI Port 2. Unclean or missing fiber-optic cable, which can cause degradation or loss of RF. Check for broken fiber-optic cable, and replace if found. Check for disconnected fiber-optic cable, and reconnect cable if necessary. Check that the BBU has power. May 2017 CommScope, Inc. Page 17

CDIU CPRI Port 2 Optical Transmitter Fault AC219 fwuhstcdiuport2optlaserfault Host Unit CDIU CDIU CPRI Port 2 SFP optical transmitter has failed, which affects RF service. Faulty SFP, which can cause degradation or loss of RF. Replace the SFP. CDIU CPRI Port 2 Optical Under Drive AC215 fwuhstcdiuport2optunderdrivefault Host Unit CDIU CDIU CPRI Port 2 SFP optical receive input power is below specification; the threshold is -18 dbm (IR) /-27 dbm (LR). Missing or faulty optical attenuator. Dirty fiber-optic connection or incorrect SFP type. Degradation or loss of RF. Check fiber-optic cable for too much attenuation and/or dirty connections. Check SFP type (wavelength or LR) being used. Replace the SFP if it is the wrong type. CDIU CPRI Port 2 REC Communication Fault AC232 fwuhstcdiuport2commsfault Host Unit CDIU Control and management channel with the REC on CDIU CPRI Port 2 has failed. REC has stopped managing the CDIU. RF is muted. Check REC status and its fiber-optic cable connection to CDIU. Verify REC Type configuration. Page 18 May 2017 CommScope, Inc.

CDIU CPRI Port 2 REC Type Configuration Mismatch AC233 fwuhstcdiuport2rectypecfgfault Host Unit CDIU User configured REC type on CDIU CPRI Port 2 is not supported by the CDIU. CDIU has been replaced. New CDIU does not support the configured REC Type. RF is muted. Replace CDIU. Update firmware on CDIU. Configure a different REC type. CDIU CPRI Port 2 Remote Alarm Indication (RAI) AC230 fwuhstcdiuport2raifault Host Unit CDIU The Remote Alarm Indication (RAI) bit is set in the received CPRI frame from the REC on CDIU CPRI Port 2. The upstream unit has detected a problem with the upstream fiber-optic cable. RF is muted. Check for problems with the uplink fiber-optic cable. CDIU CPRI Port 2 Slave Link Downstream Indication (SDI) AC231 fwuhstcdiuport2sdifault Host Unit CDIU The Slave Link Downstream Indication (SDI) bit is set in the received CPRI frame from the REC on CDIU CPRI Port 2. There is a problem with fiber-optic communication in the cascade upstream of the CDIU. RF is muted. Check the fiber-optic cable on units upstream of the CDIU. May 2017 CommScope, Inc. Page 19

CDIU Internal Fault AC201 fwuhstcdiuinternalfault Host Unit CDIU Internal CDIU problem due to a failure with one or more of the following components: internal communications, calibration EEPROM, watchdog, FPGA configuration. Internal problem with CDIU hardware, software or configuration; RF is lost. First, power cycle the CDIU either by physically removing, then re-inserting it, or by resetting the Host Unit; if alarm persists, replace the CDIU. CDIU Path A ALC Limiting AC240 fwuhstcdiupathaalclimitingfault Host Unit CDIU CDIU Path A forward path Automatic Level Control active; the threshold is -1.5 dbfs. The forward path digital input signal is too high for the Host Unit CDIU path A gain setting. This may result in gain limiting or over-driving of the LPA. May not affect service immediately. May cause loss of RF if the condition persists. Decrease the Additive Forward Gain (db) for CDIU Path A (System Configuration > Provision System > Forward RF > Forward Link Budget (CDIU)), or reduce the forward signal level from the BBU. CDIU Path A Over Drive AC237 fwuhstcdiupathaoverdrivefault Host Unit CDIU CDIU Path A forward RF input too high; the threshold is -0.5 dbfs. The forward path RF signal exceeds -0.5 dbfs peak, which may affect the forward RF. Reduce the forward gain of the affected Host Unit CDIU (Provision System > Forward RF > Forward Link Budget (CDIU)). Page 20 May 2017 CommScope, Inc.

CDIU Path A Test Tone Enabled AC239 fwuhstcdiupathatesttoneenablefault Host Unit CDIU Commissioning test tone is enabled for CDIU Path A, resulting in muted RF traffic. Commissioning tone has been enabled either through the GUI or via SNMP. RF is muted as long as the commissioning tone is active. Disable the commissioning test tone (System Configuration > Generate Test Tone). CDIU Path A Under Drive AC238 fwuhstcdiupathaunderdrivefault Host Unit CDIU CDIU Path A forward RF input signal is below the normal operating limit; threshold is [-45 dbfs] based upon the Peak power measurement (Provision System > Forward RF > Forward Link Budget (CDIU) > RMS Input Power (dbfs) Current Composite > Peak). CDIU forward path signal is not present or the CPRI input level and forward gain are not configured correctly. This can cause degradation to or loss of forward RF. Check the RF power levels of the Antenna Carriers of the affected Host Unit CDIU. Check the Power Allocation %. Increase the CDIU Additive Forward Gain (db) (Provision System > Forward RF > Forward Link Budget (CDIU)). CDIU Path B ALC Limiting AC247 fwuhstcdiupathbalclimitingfault Host Unit CDIU CDIU Path B forward path Automatic Level Control active; the threshold is -1.5 dbfs. The forward path digital input signal is too high for the Host Unit CDIU path B gain setting. This may result in gain limiting or over-driving of the LPA. May not affect service immediately. May cause loss of RF if the condition persists. Decrease the Additive Forward Gain (db) for CDIU Path B (Provision System > Forward RF > Forward Link Budget (CDIU)), or reduce the forward signal level from the BBU. May 2017 CommScope, Inc. Page 21

CDIU Path B Over Drive AC244 fwuhstcdiupathboverdrivefault Host Unit CDIU CDIU Path B forward RF input too high; the threshold is -0.5 dbfs. The forward path RF signal exceeds -0.5 dbfs peak, which may affect the forward RF. Reduce the forward gain of the affected Host Unit CDIU (Provision System > Forward RF > Forward Link Budget (CDIU)). CDIU Path B Test Tone Enabled AC246 fwuhstcdiupathbtesttoneenablefault Host Unit CDIU Commissioning test tone is enabled for CDIU Path B, resulting in muted RF traffic. Commissioning tone has been enabled either through the GUI or via SNMP. RF is muted as long as the commissioning tone is active. Disable the commissioning test tone (System Configuration > Generate Test Tone). CDIU Path B Under Drive AC245 fwuhstcdiupathbunderdrivefault Host Unit CDIU CDIU Path B forward RF input signal is below the normal operating limit; threshold is [-45 dbfs] based upon the Peak power measurement (Provision System > Forward RF > Forward Link Budget (CDIU) > RMS Input Power (dbfs) Current Composite > Peak). CDIU forward path signal is not present or the CPRI input level and forward gain are not configured correctly. This can cause degradation to or loss of forward RF. Check the RF power levels of the Antenna Carriers of the affected Host Unit CDIU. Check the Power Allocation %. Increase the CDIU Additive Forward Gain (db) (Provision System > Forward RF > Forward Link Budget (CDIU)). Page 22 May 2017 CommScope, Inc.

Clock Configuration Invalid AC38 fwuhstsyscardclockcfgfault Host Unit System Host Units with a CDIU require that the System Board III be configured for an external reference clock. System is currently configured to use the internal 10 MHz clock reference, but the CDIU requires an external reference, resulting in no RF for the CDIU bands. Change the 10 MHz Reference Clock selection to External (Host Unit Configuration >Edit Properties). Ensure that each CDIU has its REF OUT connected to the System Board EXT REF IN and that the Host Unit has a System Board III or higher. Clock Priority Level Conflict AC37 fwumastclockprioritylvlconflict Host Unit SeRF More than one Host Unit in a Multi-Host system has the same Clock Priority Level; all Host Units in conflict raise this alarm. At least two Host Units in a Multi-Host system have the same Clock Priority Level; this causes loss of RF. The Clock Priority Level Conflict alarm is a transient alarm. It will be cleared within 30 seconds, as the EMS automatically changes the Clock Priority Level on one or both of the Host Units so that the two Host Units have different clock priority values. If it is intended that a specific Host Unit should provide the master clock, the new priority values should be checked and adjusted manually if necessary. Contact Alarm Input 1 Active AC43 fwuhstcontactalarminput1 Host Unit SeRF Host Contact Alarm Input #1 active. The device connected to Contact Alarm input 1 is in alarm. Check equipment connected to Host Contact Alarm Input 1, or check contact polarity (i.e., Normally Open or Normally Closed). User Configurable May 2017 CommScope, Inc. Page 23

Contact Alarm Input 1 Active AC65 fwurmtcontactalarminput1 Remote Unit SeRF Remote Unit Contact Alarm Input #1 active. The device connected to Contact Alarm input 1 is in alarm. Check equipment connected to the Remote Unit Contact Alarm Input 1, or check contact polarity (i.e., Normally Open or Normally Closed). Contact Alarm Input 2 Active AC44 fwuhstcontactalarminput2 Host Unit SeRF Host Contact Alarm Input #2 active. The device connected to Contact Alarm input 2 is in alarm. Check equipment connected to Host Contact Alarm Input 2, or check contact polarity (i.e., Normally Open or Normally Closed). User Configurable Contact Alarm Input 2 Active AC66 fwurmtcontactalarminput2 Remote Unit SeRF Remote Unit Contact Alarm Input #2 active. The device connected to Contact Alarm input 2 is in alarm. Check equipment connected to Remote Unit Contact Alarm Input 2, or check contact polarity (i.e., Normally Open or Normally Closed). Page 24 May 2017 CommScope, Inc.

DART ALC Limiting AC33 fwuhstdartalclimitingfault Host Unit DART Host Unit DART forward path Automatic Level Control active; the threshold is +13 plus the configured Fully Loaded Input Power dbm. The forward path RF input signal is too high for the Host Unit DART forward path gain setting. This may result in gain limiting or over-driving of the LPA. May not affect service immediately. May cause loss of RF if the condition persists. Increase the Host Unit DART configured Fully Loaded Max Composite Power (Provision System > Forward RF> Forward Link Budget (RF Slots)), or reduce the RF signal level from the BTS/BDA. DART Communications Fault AC92 fwurmtdartcommsfault Remote Unit DART The Remote Unit DART communication path is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). May 2017 CommScope, Inc. Page 25

DART Communications Fault Slot 1 AC161 fwurmtdartcommsslot1fault DART The Remote Unit DART communication path to Host Unit Slot 1 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 1 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 1 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). DART Communications Fault Slot 2 AC162 fwurmtdartcommsslot2fault DART The Remote Unit DART communication path to Host Unit Slot 2 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 2 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 2 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). Page 26 May 2017 CommScope, Inc.

DART Communications Fault Slot 3 AC163 fwurmtdartcommsslot3fault DART The Remote Unit DART communication path to Host Unit Slot 3 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 3 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 3 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). DART Communications Fault Slot 4 AC164 fwurmtdartcommsslot4fault DART The Remote Unit DART communication path to Host Unit Slot 4 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 4 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 4 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). May 2017 CommScope, Inc. Page 27

DART Communications Fault Slot 5 AC165 fwurmtdartcommsslot5fault DART The Remote Unit DART communication path to Host Unit Slot 5 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 5 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 5 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). DART Communications Fault Slot 6 AC166 fwurmtdartcommsslot6fault DART The Remote Unit DART communication path to Host Unit Slot 6 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 6 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 6 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). Page 28 May 2017 CommScope, Inc.

DART Communications Fault Slot 7 AC167 fwurmtdartcommsslot7fault DART The Remote Unit DART communication path to Host Unit Slot 7 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 7 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 7 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). DART Communications Fault Slot 8 AC168 fwurmtdartcommsslot8fault DART The Remote Unit DART communication path to Host Unit Slot 8 is missing or incorrect. The DART Communications Fault for Remote Units can also occur on HEUs. The following causes are possible: the fiber-optic communication path is missing or incorrect; the Host Unit DART or CDIU in Slot 8 may be missing; the Host DART or CDIU is not compatible with the Remote Unit DART or they are configured differently; the Remote Unit DART is linked to the wrong Host Unit DART/CDIU or the wrong slot on the Host Unit; this causes loss of RF. Check if the Host Unit DART or CDIU in Slot 8 is missing. If present, verify that it is compatible with the Remote Unit DART and/or configured correctly. Check the optical performance of the SFPs used to connect RF to the Remote Unit DART, including Tx/Rx levels and alarms. Resolve any optical problem and see if the alarm clears. If the optical path is good, then check whether the SFPs or fiber-optic cable have been moved. If either has been moved, restore to its original position. If original position is not available or is unknown, then perform a Clear Configuration on the Remote Unit DART (select the Remote Unit in System Tree, and then click Unit Configuration > Configure Slots) and re-link (System Configuration > Provision System > Linking). May 2017 CommScope, Inc. Page 29

DART DC Supply Fault AC28 fwuhstdartdcsupplyfault Host Unit DART DC supply voltages to the Host Unit DART(s) are outside specification Low voltage supply to the Host Unit DART(s); this can cause loss of RF if the condition is persistent. Check whether the Host Unit supply voltage is in the range of 21-60 Vdc. If the voltage is correct and the alarm persists for five minutes (may be transient on startup), replace the Host Unit DART. DART DC Supply Fault AC97 fwurmtdartdcsupplyfault Remote Unit DART DC supply voltages for a Remote Unit DART are outside specification. Causes at the Remote Unit include: DART power up transient; bad AC input power; or faulty DART. Loss of RF if condition is persistent. If the alarm persists for five minutes (may be transient on startup), replace the Remote Unit DART. DART Downconverter 1 Synthesizer Unlocked AC25 fwuhstdartdwncon1synlockfault Host Unit DART Host Unit DART downconverter 1 synthesizer is unlocked. Startup transient or faulty Host Unit DARTs; this can cause loss of RF if the condition is persistent. The Downconverter 1 Synthesizer Unlocked alarm can occur during Host Unit reboots and DART Module hot swaps. If the alarm persists after five minutes, replace the Host Unit DART. Page 30 May 2017 CommScope, Inc.

DART Downconverter 2 Synthesizer Unlocked AC26 fwuhstdartdwncon2synlockfault Host Unit DART Host Unit DART downconverter 2 synthesizer unlocked. Startup transient or faulty Host Unit DARTs; this can cause loss of RF if the condition is persistent. The Downconverter 2 Synthesizer Unlocked alarm can occur during Host Unit reboots and DART Module hot swaps. If the alarm persists after five minutes, replace the Host Unit DART. DART Fault AC29 fwuhstdartfault Host Unit DART or CDIU Summary of the DART FPGA status and the following DART alarms: Downconverter 1 Synthesizer Unlocked, Downconverter 2 Synthesizer Unlocked, Upconverter Synthesizer Unlocked, and DART DC Supply Fault. For CDIUs, this alarm indicates a problem with the connection into the backplane (LVDS signals). Startup transient or faulty Host Unit DARTs/CDIUs; this can cause loss of RF if the condition is persistent. Inspect alarms (Alarms > View Current Alarms) for upconverter, downconverter, or DC supply alarms on the same Host Unit DART/CDIU, and then follow the corresponding alarm remedies. If none of these alarms are found, unseat and then reseat the DART/CDIU in the Host Unit chassis. If the alarm persists, do the following in the order presented, moving on to the next step only if the current step does not resolve the issue: 1 Unseat and then reseat the SeRF Module in the Host Unit chassis. 2 Replace the DART/CDIU. 3 Replace the SeRF Module. 4 Replace the Host Unit. May 2017 CommScope, Inc. Page 31