Preventive Maintenance, Safety Considerations | Symmetricom 1100

Chapter 6 Maintaining and Troubleshooting the TimeProvider

Preventive Maintenance

Preventive Maintenance

The TimeProvider shelf requires minimal preventive maintenance. Take care to ensure the unit is not exposed to hazards such as direct sunlight, open windows, water, or extreme heat. See Environmental Requirements in Pre-Installation Check, on page 54, for electromagnetic compatibility conditions that may cause damage.

Caution: To avoid electromagnetic discharge damage to the circuitry, never attempt to vacuum the TimeProvider main shelf or expansion shelf.

Caution: To avoid damage, under no circumstances should the interior chassis of the TimeProvider be allowed to come in contact with water.

Table 6-1lists preventive maintenance measures to be performed periodically. Do not disassemble components just for the purpose of inspection.

Table 6-1. Preventive Maintenance

Item	Inspection	Corrective Action	Interval

Chassis	Inspect for dirt or foreign	Clean the exterior of chassis with a	Periodically
	material	soft dry cloth

Cables	Inspect for pinched, worn	Replace pinched, worn or damaged	Periodically
	or damaged cable	cable at the first opportunity

Connectors	Inspect for loose or	Tighten loose connectors. If	Periodically
	damaged connector	damaged, replace the connector
		and/or cable at the first opportunity

Safety Considerations

Follow your company’s safety guidelines and policies when working on or around live equipment.

ESD Considerations

Maintenance personnel should wear ESD wrist straps when installing or working on all TimeProvider equipment and cards. Plug the user-supplied wrist strap into the TimeProvider shelf. Place IMC and IOC cards as well as the Input and Output panels into static-free bags when not in use.

156 TimeProvider User’s Guide

097-58001-02 Revision G – April 2008

Image 156

Symmetricom 1100 Preventive Maintenance, Safety Considerations, ESD Considerations, Inspection Corrective Action Interval

Contents

TimeProvider 1000 and 1100 Edge Clock Symmetricom, Inc Contents Engineering and Ordering Procedures Provisioning the TimeProvider Testing the TimeProvider Maintaining and Troubleshooting the TimeProvider Index Figures TimeProvider User’s Guide Tables TimeProvider User’s Guide How to Use This Guide This Preface Purpose of This Guide Who Should Read This GuideStructure of This Guide Chapter, Title Description When text appears It means This way Conventions Used in This Guide TimeProvider User’s Guide Related Documents and Information Added Provisioning Snmp Parameters, on Overview of the TimeProvider This Chapter Overview Shelves Expansion Panel TimeProvider 1000 ETSI-style Shelf Inputs Outputs SSU Mode Operating ModesCommunication Clocks SUB Mode PRR ModePerformance Monitoring Phase Measurements Mtie CalculationsTdev Calculations NTP Operation Ffoff Calculations NTP Operation Snmp Simple Network Management Protocol Physical Description Connector Input Output Modules GPS Functional Description Shelf Input ModuleInformation Management Card IMC Input/Output and Clock Module IOC System Power IOC Type Max Power W Typical Power WOutput Module Expansion Panel Reference Input Signals Communication PortsEthernet Local Craft Serial Port Revertive Switching Selecting the InputInput State Quality Level and Priority Level SSMs and Quality Level Subtending Mode Sequence QLevel on Active ReferenceNon-Revertive GPS Inputs Non-Revertive1 Revertive2LOS INP2 INP1 Output Signals Clock Performance Retimer Modules Alarms Synchronization Status Messages SSMsDescription Quality Level Abbreviation Input SSMs Output SSMs SmartClock BesTime Normal Tracking GPS Holdover Engineering and Ordering Procedures Model 1000 Front Access Model 1100 Rear AccessFront Access Shelf Rear Access Input ModulesOutput Modules Part Number Description IMC and IOC Modules IMC GPS Antenna Part Number Description Ordering and Parts List Ordering the Cable Management OptionOrdering an NTP or Snmp License Model Outputs Part Number Ordering an NTP or Snmp License Installing the TimeProvider Pre-Installation Check Getting StartedPerforming a Site Survey Physical Space Gathering the Tools Environmental Requirements Unpacking the Unit Rack MountingMain Shelf Cable Management Tray Rack Mounting Rack Mounting Front Access Shelf Rear Access ShelfMaking Connections Making Ground Connections Making Power Connections Verifying Power and Grounding Connections Rear Access Shelf Front Access Shelf Installing the Input Module Item Number Description Alarm Connector ReferenceMaking Input Connections Pinout for the DB9 Input module is shown in Table Pin Description 10. BT43 Input Module Installing the Output Module Connector Output Module Pin DescriptionMaking Output Connections Item Number Description Reference 12. BNC and Wire-Wrap Output Modules 14. BT43 and Metric Siemens Output Modules Making Retimer Connections 17. Sample Installation Schematic for a Retimer Making Alarm Connections Installing the GPS Antenna Making GPS Connections Making Connections 20. Antenna-to-Shelf Cabling 21. Installing the Antenna Bracket on a Pipe 23. Attaching the Antenna to the Bracket Assemble the lightning suppressor as shown in Figure Installing the Integrated IMC/TPIU Installing the Tpiu 26. Mounting the Tpiu with a Model 1000 ETSI-Style Shelf Connecting to the Local Craft and Remote Serial Ports Local Craft Connector Remote Connector Signal PinMaking Communications Connections Installing Connections to the Ethernet Port Changing Communications SettingsDirect Ethernet Connection Network Connection Name Pin Installation Check List Powering Up the ShelfWorking With Cards Properly Handling Cards Inserting Cards Removing Cards Firmware Features IMC Release IOC Release Features AddedNTP IMC/TPIU Provisioning the TimeProvider TL1 Command Structure Symbol DescriptionTL1 Overview Error Response TL1 Response FormatNormal Response In-Process Response Starting the TimeProvider for the First Time Autonomous Messages Powering Up the TimeProvider LED Indications on Power-upChanging the Echo Mode Logging In for the First Time Setting the Source ID sid Setting the Response FormatSetting the Date and Time Setting Communications Parameters Setting RS-232 ParametersSetting Ethernet Parameters Setting User Security Setting the Handshaking Flow Mode Setting the Echo Mode Setting Ethernet Parameters Setting the IP AddressesAid Keyword Value Description Default Defining the Security Parameters Checking Communication LinksPing Retrieve Header Defining a User at the Security Access Level TimeProvider Access Levels Adding a User at the Security Access Level Managing the User ListLogging Logging Logging Out Parameter Uid Value DescriptionUid Value Description Admin Security Adding a UserParameter Value Description None User Changing the Current User’s Password Displaying a User’s Access LevelKeyword Value Description Parameter Description Editing a User’s Access Level None User Admin SecurityAcclvl None User Admin Security Response Value Description Deleting a User Retrieving Current Users Using SynCraft Starting SynCraft Creating a Connection Create New Connection Window Opening a Connection Closing a Connection Setting the System Mode Setting the System ModeKeyword Value Description Default value Provisioning the IOC Retrieving the Current System Mode Sysmode SUBPRR Setting the IOC Parameters Setting the Input State PRS Instate EnableGPS = Disable Provisioning the Input Reference Setting the GPS Parameters Setting the Input Frequency Setting the Input Frame TypePRS Frmtype Controlling Automatic Reference Switching Automatic Return to a Higher Priority ReferenceCCS D4 ESF JCC JCC4 Setting the Input Quality Level Enabling Automatic SwitchingSYS Refmode Auto Forced Setting the Input Priority Level Manually Selecting the Reference SYS Inpref GPS PRS INP1 Ssmena Enable Provisioning the SSMReading SSMs Defining the SSM Bit Position Using Performance Monitoring Setting Mtie and Ffoff ThresholdsCrcena Enable Enabling CRC4 Aid Keyword Value Description MTIE-100 MTIE-500 Setting Alarm Levels for Performance Monitoring Faults Provisioning the OutputsGPS, PRS Mtie NR NA MN MJ CR INP1, INP2 Outstate Enable Enabling and Disabling the OutputsProvisioning the Output Framing Type D4 ESF CC JCC JCC4 ISOLATED1 Provisioning Retimer Parameters Enabling and Disabling the RetimersRtmstate Enable Provisioning the LBO Rtmlbo Provisioning Cut-thru Mode Provisioning NTP ParametersFreeflt Cutthru Retime Activating NTP Editing NTP Peer Server Parameters Enabling NTP Authentication Setting the NTP Authentication Key Aid Parameter Value Description Default value Provisioning Alarms Provisioning the Alarm Levels Levels Default Editable? Mode Aid = SYS Aid = IMCAid = IOC Levels Default Editable? Mode Aid = PRS Levels Default Editable? Mode Aid = INP1 or INP2 InpaisInpoof Inpql Provisioning System-Level Alarms Retrieving Current Alarm Settings SYS Elevtime Enable DisableSYS Gpsclrdel Aid Keyword Description Retrieving Current Alarms Field Description Aid Description SYS IMCValue Description Displaying Alarm Status Aid Description ALL or null Access Identifiers Clearing Alarms Clearing the Office Audible AlarmIOC2TO1COMM-OK IOC2TO1COMM-FAIL IMC2COMM-OK IMC2COMM-FAIL Provisioning Snmp Parameters Activating Snmp Setting Up Snmp Traps, Informs, and Notifications Changing a User’s Security ParametersDisplaying the Connected Users Snmp System Commands Displaying EventsIOC EVT GPS PRS ALM Displaying the Configuration of the TimeProvider Response Description IMC Reset Restarting the TimeProviderSYS Factory Saving Provisioning Data Electronically Backing up Provisioning DataProvisioning Worksheet Section Parameter User-Defined Value QLEVEL, PRS QLEVEL, INP1 QLEVEL, INP2 QLEVEL, GPSPRIORITY, PRS PRIORITY, INP1 PRIORITY, INP2 PRIORITY, GPS FRMTYPE, Outa FRMTYPE, Outb FRMTYPE, Outc FRMTYPE, Outd RTMSTATE, Rtma RTMSTATE, Rtmb RTMSTATE, Rtmc RTMSTATE, Rtmd Clrdelay Freeflt Holdflt Gpsclrdel HOLDFLT, RTMA-1Keyid Maxpoll Minpoll Preferred Serverip Func Keyid KEY Testing the TimeProvider Verifying Normal Operation Test OverviewTest Equipment LED Name Condition Description ACO Testing Alarm Conditions Testing the IOC Operating ModesWarm-up Mode Locked Mode Testing the Reference Switching Testing the Non-Revertive Operating Mode Testing the Revertive Operating Mode Testing the Power Alarms Testing the Communication Ports Detecting Input ErrorsTesting the Local Craft Serial Port Setting an Alarm Strategy Testing the Remote Serial Port Testing the Ethernet Port Testing the Outputs Test RecordTest Results Pass/Fail Date Initials Test Record Maintaining and Troubleshooting the TimeProvider Preventive Maintenance Safety ConsiderationsESD Considerations Inspection Corrective Action Interval Diagnosing the IOC Reading LED Conditions Interpreting Error Messages Compatibility AlarmRemoving the IOC IOC Memory Removing a Redundant IOC Replacing the IOC Removing Two IOCs Replacing the Only IOC Replacing a Redundant IOCReplacing Both IOCs Diagnosing the IMC Replacing the IMC or IMC/TPIU Diagnosing the Retimer Module Diagnosing the External Tpiu Where g is the output group you are enabling A, B, C, or D Replacing Output Modules Where p is 1 to enable INP1 or 2 to enable INP2 Replacing the Input Module Troubleshooting the TimeProvider Using Events to TroubleshootDefault Value Description of Values Event ID Keyword Eqpt Disable EchoFlow Eqpt None Login IseqLogecho Logout IOC Event Codes IOC Clock Events IOC Input Events Eqpt Disable Enable Disable OutstateRqlevel SYS Events Eqpt Squelch GpsclrDEL SSM IMC Codes IOC1 CodesIOC2 Codes GPS Codes PRS and INPp Codes Using Alarm Codes to Troubleshoot Eqpt NSA ExpnEqpt NSA Pwrb Eqpt NSA IOC1 CLK Eqpt NSA BrdgEqpt Hold Eqpt Free ANT Eqpt NSA POSNSA PWR NSA Phase INP Specified input has had Excessive phase measurement That disqualifies it AID = E422A, E422B, E422C, E422D AID = RTMA-p, RTMB-p, RTMC-p, RTMD-p Event ID Condition IOC Codes CcalignPmclr Ssena IOC Output EventsUTC Repairing the TimeProvider Obtaining Technical AssistanceUpgrading the Firmware ACT-SWDLIMCTP1000 Upgrading the IMC Upgrading the IOCUpgrading Single IOCs Upgrading Redundant IOCs Returning the TimeProvider Repacking the UnitUpgrading One IOC From the Other Manual Updates Equipment Return Procedure Specifications of the TimeProvider Specification Factory Default Available Local Craft Port Communications PortsSerial Ports Remote Port Clocks LAN Port Inputs Hold-in and Pull-in RangeInput supported Clock Type Hold-in Range Pull-in Range Parameter Specification PRS Inputs T1 InputsE1 Inputs Parameter Specification T1 Signals E1 SignalsCC Signals JCC Signals Parameter Specification JCC4 Signals 8k SignalsMHz Signals TIA/EIA-B-422 Signals Power Input AlarmsOutput Alarms Alarm Description TimeProvider 1000 Front-Access Shelf TimeProvider 1100 Rear-Access ShelfParameter Specification Roof Antenna Environmental Appendix a Factory Default Values This Appendix Default Command Access Levels Command Default Access Level Editable? Alarm Default Values IOC1-related Alarms IOC2-related AlarmsGPS-related Alarms Inplos Immed Inpfrq Inpphase Exdsc Ffoff Mtie Tpiusig PRS-related AlarmsInplos Immed Inpfrq Inpphase Exdsc Ffoff Mtie INP1 or INP2-related Alarms Default Equipment Parameters RTM-related AlarmsParameter Default Value Local/Remote Comm Port Parameters aid=COMp Default Input Parameters Parameter Default Value Input Parameters aid=SYSIOC Parameters aid=IOCm Input Parameters aid=PRS Default Output Parameters Parameter Default Value Output Parameters aid=OUTgInput Parameters aid=PRS, INPp E422 Output Parameters aid=E422g Default Retimer Parameters Parameter Default Value Retimer Parameters aid=RTMg Default Retimer Parameters Appendix B Craft Software Reference System Requirements SoftwareDocumentation Installing SynCraft Installing SynCraft Symbols Index IMC IOC PRS Snmp Revision G April TimeProvider User’s Guide