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Symmetricom TimeHub 5500 User Manual Download Page 230

230 TimeHub 5500 User’s Guide

097-55501-01 Revision M – January 2009

Chapter 5  Maintaining the TimeHub 5500
Troubleshooting the TimeHub 5500

Troubleshooting the Expansion Controller Card

The front panel of the Expansion Controller card is shown in 

Figure 5-8

. Use the 

LEDs on the front panel and the actions in 

Table 5-4

 to diagnose and resolve 

problems with the EC card.

Figure 5-8.

 Front Panel of the Expansion Controller Card 

Summary of Contents for TimeHub 5500

Page 1: ...TimeHub 5500 User s Guide Revision M January 2009 Part Number 097 55501 01 ...

Page 2: ... 95131 1017 U S A http www symmetricom com Copyright 1999 2009 Symmetricom Inc All rights reserved Printed in U S A All product names service marks trademarks and registered trademarks used in this document are the property of their respective owners ...

Page 3: ...n 23 Functional Overview 24 DS1 and CC Outputs 26 NTP and 5 MHz Outputs 27 Communication Ports 28 Power Supply 28 Input Alarm Connector Module 28 Clock Cards 29 Management Card 29 Output Driver Cards 30 Output Connector Modules 30 Connection Panels 30 5 MHz Output Cards 30 NTP Server Cards 31 Alarms 31 Alarm Connections 32 Synchronization Status Messaging 32 Input SSMs 33 Automatic Reference Switc...

Page 4: ...nput Alarm Connector Module 61 Output Connector Modules 63 5 MHz Output Connector Modules 65 Expansion Controller Card 67 NTP Server Card 70 Functional Overview 72 NTP Card Clock Quality and Holdover 74 NTP Server or Client 75 Authentication 76 Redundancy 78 NTP Traffic Load Limit 81 NTP Output Connector Modules 83 Ordering and Parts List 86 User Supplied Tools and Materials 89 Chapter 3 Installin...

Page 5: ... Making Communication Connections 122 Connecting Alarms 123 GPS Input 125 Installing the Cover 125 Installing Expansion Shelves 126 Installing the Shelf in the Rack 126 Making Ground and Power Connections 126 Setting the Expansion Shelf Address 126 Installing Output Connector Modules 128 Making Expansion Shelf Connections 129 Removing Expansion Shelves 135 Chapter 4 Testing and Configuring the Tim...

Page 6: ...ards 189 LED Indications 189 Verifying the Port A and Port B IP Addresses 190 Verifying the NTP Server Function 191 Verifying the Bonding Mode Function 194 Verifying the Redundancy Function 195 Checking System Operation 197 Enabling Security 197 Managing the User List 199 Setting the Configuration to Factory Defaults 202 Chapter 5 Maintaining the TimeHub 5500 Clearing Output Port Alarms 206 False ...

Page 7: ...airing a Corrupt File System 259 Upgrading the TimeHub NTP Firmware 260 Returning the TimeHub for Repair 263 Repacking the Unit 263 Equipment Return Procedure 264 Contacting Symmetricom Global Services 264 User Manual Updates 265 Chapter 6 Specifications Specifications 268 Local Communication Port 268 LAN Communication Port 268 Remote Communication Port 268 GPS Input 268 Expansion Link 1 Input 268...

Page 8: ...tings 277 User Changes to Factory Defaults 277 Appendix A Maintenance of Prior Master and Expansion Shelves Introduction 281 Making Ground and Power Connections 281 Grounding the Shelf 281 Grounding the Wire wrap Panel 283 Making Power Connections 283 Testing Power Connections 284 Making Ground and Power Connections Expansion Shelf 285 Index 287 ...

Page 9: ...t Panel of the NTP Server Card 71 2 14 Block Diagram of the TimeHub NTP System 73 2 15 Sample NTPv4 Packet 77 2 16 Single NTP Card No Port Bonding 78 2 17 Single NTP Card with Port Bonding 79 2 18 Two NTP Server Cards No Port Bonding 79 2 19 Two NTP Server Cards with Port Bonding 80 2 20 TimeHub NTP Output Connector Modules 84 3 1 Mounting Options for the Shelf 96 3 2 High Density Wire wrap Panel ...

Page 10: ...2 The TimeScan THC Input Screen 161 4 13 The Remote Input Configuration Window 174 4 14 The Remote Input Configuration Window 175 4 15 Configuring Outputs Using TimeScan THC 181 4 16 DS1 Output Waveforms 182 4 17 CC Output Waveforms 183 4 18 The Configuration Output Tab 188 4 19 Enabling Ports for CC Cable Compensation 188 4 20 The Sync Server Window in SymmTime 192 4 21 The New Server Window in S...

Page 11: ...t of Figures 5 18 Example FTP Download Process for Clock 1 Part 2 255 5 19 Example FTP Download Process Part 3 256 A 1 Connectors on the Rear Panel of the Master Shelf 282 A 2 Wire wrap Panel Ground Connection 283 A 3 Power and Ground Connections on the Master Shelf 284 ...

Page 12: ...List of Figures 12 TimeHub 5500 User s Guide 097 55501 01 Revision M October 2008 ...

Page 13: ...r Shelf 108 3 4 Maximum Loading Configuration for the TimeHub Expansion Shelf 108 3 5 SFP Modules for the TimeHub 5500 NTP Server Card 121 3 6 Pinout of LAN Connector 122 3 7 Pinout of Local Communications Port 123 3 8 Expansion Shelf Rotary Switch Settings and Functions 127 4 1 Management Card S1 Switch Settings 140 4 2 Clock Card S1 Switch Settings 145 4 3 Communications Port Assignments 148 4 4...

Page 14: ...List of Tables 14 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 ...

Page 15: ...ormat layout and purpose of this guide In This Preface Purpose of This Guide Who Should Read This Guide Structure of This Guide Conventions Used in This Guide Warnings Cautions Recommendations and Notes Related Documents and Information Where to Find Answers to Product and Document Questions What s New In This Guide ...

Page 16: ...nfiguration instructions or details primarily intended for qualified maintenance personnel This User Guide is designed for the following categories of users Systems Engineers Chapter 1 provides an introduction to the TimeHub 5500 Cross references in this chapter direct you to detailed system information in other chapters as appropriate Installation Engineers Chapter 2 through Chapter 6 provides de...

Page 17: ...5500 Contains procedures for unpacking and installing the product and for powering up the unit Chapter 4 Testing and Configuring the TimeHub Provides checklist based commissioning tests that should be performed after completing turn up and software configuration to ensure the system is ready for normal operation Describes the ICS and TL1 commands required to provision the TimeHub 5500 after instal...

Page 18: ...meHub 5500 User s Guide The title of a document SSU CRITICAL IOC1 An operating mode alarm state status or chassis label Select File Open Click the Open option on the File menu Press Enter Press A named keyboard key The key name is shown as it appears on the keyboard An explanation of the key s acronym or function immediately follows the first reference to the key if required SSU Username Text in a...

Page 19: ... to equipment do not disregard ESD cautions All ESD cautions use this symbol ESD cautions are installation operation or maintenance procedures practices conditions or statements that if not strictly observed may result in possible personal injury electrostatic discharge damage to or destruction of static sensitive components of the equipment Electrical Shock Caution To avoid electrical shock and p...

Page 20: ...sales office You can also contact us on the web at www symmetricom com What s New In This Guide Revision M of this guide contains the following new information Added Maximum Load Limits on page 108 Revised the information in Grounding the Shelf on page 103 Revised Making Ground and Power Connections on page 102 Revised the upper voltage limit in Power on page 273 Added Making Ground and Power Conn...

Page 21: ... Guide 21 Chapter 1 Description This chapter describes the TimeHub 5500 and includes the following topics Overview Functional Overview Alarms Synchronization Status Messaging Passthrough Mode Master Remote Shelf Expansion Shelf TimeScan THC Software Chapter ...

Page 22: ...andards GPS Primary Reference Source PRS receivers and DS1 input references from other nodes to generate synchronized DS1 1 544 Mbps and composite clock CC 64 kbps timing output signals These signals provide timing synchronization inputs to various network elements If a reference input is lost the TimeHub 5500 provides SmartClock holdover that exceeds Stratum 2 accuracy In addition to DS1 and CC o...

Page 23: ...an install Clock cards with four additional DS1 inputs for a total of nine inputs The shelf contains slots for a Management card two Clock cards and up to eight Output Driver cards The shelf and the connection panel s can be mounted in a 19 inch or a 23 inch rack as shown in Figure 1 2 All connectors are at the rear of the shelf and connection panel s except for a communications connector on the M...

Page 24: ...s the input reference sources and generates a precise and stable 1 544 MHz square wave clock signal These signals are sent through the backplane of the TimeHub shelf to the Management Card and to the Output Driver cards The Management Card MC contains a clock generator that provides an unfiltered 1 544 MHz square wave to the backplane This signal called the pass through clock provides a last resor...

Page 25: ...ves receive three 1 544 MHz sync signals from the backplane one from each Clock card and the passthrough clock from the Management card The Output Driver cards select one of these signals based on the Active Standby status of the Clock Cards The Output Driver cards use this signal to derive the output signal types The Output Connector modules take the output signal and provide the appropriate conn...

Page 26: ... outputs 40 DS1 40 CC or 20 of each type The Output Connector module determines the type of output signal There are two output connector card types DS1 and CC The master shelf can accommodate 8 Output Driver modules With a 1 1 redundancy that most systems deploy the main shelf can provide 140 DS1 CC outputs with 1 1 redundancy protection The reason for providing only 140 and not 160 protected outp...

Page 27: ...igher For more information on passthrough see Passthrough Mode on page 35 NTP and 5 MHz Outputs Figure 1 5 is a block diagram of the TimeHub 5500 with a mix of DS1 CC Output Connector modules NTP Server cards and 5 MHz Output Connector modules Figure 1 5 Block Diagram for DS1 CC NTP and 5 MHz Outputs NTP Outputs Each NTP Server card provides two network connections that provide accurate NTP packet...

Page 28: ... each card on the shelf Input Alarm Connector Module The Input Alarm Connector module provides the connections for input reference signals to the shelf and for the alarm outputs There are five timing inputs one PRS input and four DS1 inputs The PRS input can be either 5 MHz or 10 MHz Depending on the type of Clock card used four additional DS1 timing inputs can be used for monitoring only DS1 inpu...

Page 29: ...gnal to use as the active reference During normal operation the active clock tracks the active input signal and produces a precise frequency for the Output Driver cards based on the input reference The standby clock does the same thing except its output is not used by the Output Driver cards The standby clock backs up the active clock ready to become active when necessary If the input reference is...

Page 30: ...two types of Output Connector modules DS1 and CC Output Connector modules Each module contains the hardware required to interface with the output type DS1 or CC The Output Driver card reads the Output Connector module to determine the appropriate voltage levels frequency and format for the corresponding output type See Output Connector Modules on page 63 for more information on Output Connector mo...

Page 31: ...b 5500 shelf and system A shelf alarm is one that occurs from within the TimeHub 5500 shelf and a system alarm is one that is sensed via one of the external alarm wire wrap inputs on the input alarm card If an alarm is sensed on any of these 10 external alarm inputs it appears as a System alarm on the Management card front panel If simultaneous alarms occur with different severity levels the front...

Page 32: ...put Alarm Connector Module on page 110 Synchronization Status Messaging The TimeHub 5500 supports input and output SSM Synchronization Status Messaging SSM provides a method for providing clock quality information to any equipment that uses synchronization inputs For DS1 signals SSM information can be encoded on ESF Extended Super Frame signals D4 also known as SF DS1 signals are not capable of tr...

Page 33: ...e D4 framed DS1 and 5 10 MHz inputs you can assign an assumed SSM value to the input using the TL1 keyword QLEVEL Assigning an SSM allows an input to be automatically selected when the synchronization mode is set to SSM Automatic Reference Switching You can use the SSM values on the input signal to determine which input is selected as the active timing reference The TL1 keyword SYNCMDE provides th...

Page 34: ...0 55512 02 Stratum 3E traceable The QCUTOFF keyword can be used to set an additional quality value that will disqualify any input whose CURRSSM value is higher than the selected QCUTOFF value Output SSMs SSMs are automatically encoded onto any DS1 output set for ESF framing Normal operation automatically encodes an appropriate SSM quality level on such outputs you can override the automatic settin...

Page 35: ...ON T USE for synchronization quality level 9 to be sent to downstream equipment during maintenance operations Using a signal marked DUS for timing purposes is a violation of the BITS concept and Telcordia general requirements Passthrough Mode The TimeHub 5500 can provide a usable clock in a situation where both Clock cards are removed from the shelf and a usable input signal is present The capabil...

Page 36: ...e Clock card the PTNA would be expected to clear if it had been set If no timing input is providing a signal while in Passthrough the outputs are disabled and Passthrough mode ends Unlike Clock cards which have the ability to provide holdover capability when all timing inputs are removed and thus maintain output timing the Management card cannot provide holdover Therefore outputs are disabled if t...

Page 37: ...ve CC input and any output CC will be nearly perfect If you observed the positive bi polar violations on the input and any CC output on an oscilloscope you would see that they are completely aligned The Passthrough feature maintains this alignment while entering into Passthrough while in Passthrough and when exiting from Passthrough back to normal operation which would occur when a Clock card is r...

Page 38: ...to 3000 feet 1093 m from the Master shelf that provides the CC timing inputs The Clock cards in the Remote shelf closely follow the input CC signals this maintains phase alignment between the CC inputs and CC outputs Unlike a Master shelf which provides significant filtering of the input timing references PRS or DS1 signals the Remote shelf adjusts its outputs very quickly as changes occur on the ...

Page 39: ...ont panel of the Clock card display information for the inputs See Figure 2 2 which shows the front panel of the Clock card The relevant LEDs are CC 1 and 2 and DS1 1 and 2 CC Timing Inputs Timing references for the Remote shelf are connected at the Input Alarm Connector module located on the rear panel of the shelf refer to Figure 3 18 This module supports both Master and Remote operation For Rem...

Page 40: ... is lit in either CC1 or CC2 row The SSM value is taken from the assumed SSM value see QLEVEL keyword in the TL1 Reference Guide associated with the active timing reference For example if CC2 is the active timing reference the SSM is taken from QLEVEL setting for channel 11 Channel 11 is the TL1 reference to CC2 There are no valid SSM inputs No signal or non decodable signal connected to DS1 1 and...

Page 41: ...e the following Note Each DS1 CC Driver card provides 40 outputs which can be provisioned as all DS1 all Composite Clock CC or 20 outputs of each type The front panel LEDs indicate the actual provisioning The DS1 or CC Output Connector modules installed on the rear panel of the Expansion shelf determine the type of output signal The NTP Server card and the 5 MHz Output Driver cards can be used in ...

Page 42: ...f one card should fail the other maintains proper operation The EC card provides the following basic functionality Buffering of timing and framing signals sourced by Clock cards in the master shelf and delivery of those signals to the Expansion shelf output cards Communication bi directional between Master and Expansion shelves Expansion shelf power monitoring and alarm reporting Redundancy manage...

Page 43: ...s on page 63 There are two cables available for connecting Output Connector modules in the Expansion or Master shelf to the wire wrap panels 1 A flat ribbon cable 060 55591 01 connects a TimeHub 5500 Output Connector module to the 80 output wire wrap panel 090 41902 01 2 A round cable 060 55591 02 connects a TimeHub 5500 Output Connector module to the 160 output high density wire wrap panel 090 55...

Page 44: ...it then an Output Connector module is not installed Redundancy Considerations The interconnections between the Master and Expansion shelf are designed to support redundancy in several areas Each area is independent of the others if one type of redundancy is lost the other areas of redundancy are not compromised Clock Redundancy The two Clock cards in the Master shelf provide the Expansion shelf wi...

Page 45: ...hen reports alarms or events related to that Expansion shelf If no EC cards are present the ECLKEXP remains at the default value of N When ECLKEXP is N the TimeHub 5500 Master shelf does not expect communication from an EC card and no Expansion shelf related events are reported This keyword is described in the TL1 Reference Guide If one of the EC cards is removed an event keyword EXCLKGONE is repo...

Page 46: ...46 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 1 Description TimeScan THC Software ...

Page 47: ...sion M January 2009 TimeHub 5500 User s Guide 47 Chapter 2 Engineering Ordering Information This chapter includes Overview Wire wrap Panels Card Overview Ordering and Parts List User Supplied Tools and Materials Chapter ...

Page 48: ...ut an order RMAs and other information Wire wrap Panels Symmetricom provides several wire wrap adapter panels to connect the TimeHub 5500 to office wiring Figure 2 1 illustrates the High Density Wire wrap Adapter Panel that is delivered with the shelf Table 2 1 lists the available wire wrap adapter panels and their part number The cabling to the panel is supplied with the Output Connector module s...

Page 49: ... Panels Available for the TimeHub 5500 Description Part Number High capacity wire wrap panel labeled A D for Master Remote shelves 093 55595 01 High capacity wire wrap panel labeled A D for Expansion shelves 093 55595 01 High capacity wire wrap panel labeled E H for Expansion shelves 093 55595 02 Table 2 2 Wire Wrap Connection Cables Description Part Number 4 foot 122 cm interconnect cable 060 555...

Page 50: ...llator 090 55511 01 Extended capacity Clock cards These cards are equipped with nine inputs four DS1 four monitoring inputs and one 5 10 MHz and support Expansion shelves If you plan to use an Expansion shelf or shelves attached to a Master shelf you must use extended capacity Clock cards Nine input with an ST2 rubidium oscillator 090 55514 02 Nine input with an ST3E quartz oscillator 090 55512 02...

Page 51: ...Revision M January 2009 TimeHub 5500 User s Guide 51 Chapter 2 Engineering Ordering Information Card Overview Figure 2 2 illustrates the front panel of the Clock card Figure 2 2 Front Panel of the ST2 Rb Clock Card ...

Page 52: ...is not in Freerun state Tracking Green On The Clock card is tracking a qualified input Off The Clock card is not tracking a qualified input Fast Track Green On The Clock card has warmed up is tracking and is providing a usable output but has not yet achieved Smart Clock optimal quality output Off The Clock card is not in Fast Track state SmartClock Available Green On The system has gathered suffic...

Page 53: ...ponding Q and E lights are off Off The associated reference input is not being actively A used for tracking Active Green On This card is the synchronization signal source for all output cards Off This card is not the synchronization signal source for all output cards Standby Green On This card is generating an output that is phase locked to the output of the other active Clock card Off This card i...

Page 54: ...nagement Card The function of the Management card is described in Management Card on page 29 The Management card kit 990 55542 01 includes the Management card a DB9 cable and a CD that contains the TimeScan THC software Figure 2 3 illustrates the front panel of the Management card Figure 2 3 Front Panel of the Management Card ...

Page 55: ...larm outside the shelf Alarms System Major Red On A major alarm condition exists outside the shelf Off There is no major alarm outside the shelf Alarms System Critical Red On A critical alarm condition exists outside the shelf Off There is no critical alarm outside the shelf Alarms Shelf Minor Red On A minor alarm condition exists in the shelf Off There is no minor alarm within the shelf Alarms Sh...

Page 56: ...s the outputs with minimal disruption If you do not need protected outputs you can install one Output Driver card in either slot of a group Figure 2 4 shows the front panel of the DS1 CC Driver card Comm Ports Local Xmit Green On Data is being transferred on the local port Off Data is not being transferred on the local port Comm Ports Remote Link Green On The network connection is enabled Off The ...

Page 57: ...097 55501 01 Revision M January 2009 TimeHub 5500 User s Guide 57 Chapter 2 Engineering Ordering Information Card Overview Figure 2 4 Front Panel of the DS1 CC Driver Card ...

Page 58: ...se Red On The Output Driver card fuse is open Off The Output Driver card fuse is not open Alarm Red On An alarm condition is present Off No alarm condition is present Fail Red On A hardware or firmware fault has occurred Off No hardware or firmware faults have occurred Ports 1 20 DS1 Green On A DS1 Output Connector module is connected to ports 1 through 20 Off There is no Output Connector module c...

Page 59: ...cards is disabled for any reason The output ports are disabled if a fault is detected in a non redundant card the ports can also be individually disabled and enabled via TL1 commands Functional Block Diagram A simplified block diagram of the 5 MHz Output Driver card in the TimeHub is shown in Figure 2 14 Figure 2 5 Block Diagram of the TimeHub 5 MHz Output Driver Card Status LED Indicators The 5 M...

Page 60: ...60 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 2 Engineering Ordering Information Card Overview Figure 2 6 Front Panel of the 5 MHz Output Driver card ...

Page 61: ...able 2 8 LEDs on the 5 MHz Output Driver Card Front Panel Indicator Color Description PWR Green Off Power is not present on the card On The card is receiving power FUS Red Off Fuse is OK On Fuse is burned out ALM Red Off Card is working without alarms On Card is in the alarm state FAIL Red Off Card is OK On Card failure component etc Port On Ch1 Green Off Port is not active On Port is active Port ...

Page 62: ...62 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 2 Engineering Ordering Information Card Overview Figure 2 7 Front Panel of the Input Alarm Connector Module ...

Page 63: ...en the Master Remote shelf and the Expansion shelf Master Remote shelf Output Connector modules DS1 990 55591 01 CC 990 55593 01 Expansion Shelf Output Connector modules DS1 990 55591 02 CC 990 55593 02 Output Connector modules on the Master shelf are distinguished by the handle on the card Each DS1 Output Connector module is labeled DS1 and has a black handle each CC Output Connector module is la...

Page 64: ...TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 2 Engineering Ordering Information Card Overview Figure 2 8 Output Connector Modules for the Master Remote Shelf DS1 left and CC right ...

Page 65: ...n an Expansion shelf See Installing Rear Panel Modules on page 109 for instructions on installing Output Connector modules Making Signal Connections on page 114 provides instructions on connecting the Output Connector modules to the Output panels 5 MHz Output Connector Modules The 5 MHz Output Connector module provides an interface for all external signal connections necessary for 5 MHz operations...

Page 66: ...9 Chapter 2 Engineering Ordering Information Card Overview Figure 2 10 TimeHub 5 MHz Connector Modules Connectors Port 1 4 These BNC connectors allow you to connect a 5 MHz output signal to other Network Elements A right angle BNC adapter is installed on each output ...

Page 67: ... card is the same regardless of which of these locations are used The reason to use two EC cards in the shelf is entirely to support redundancy If one card should fail the other will maintain proper operation The EC card provides the following functions Buffering of timing and framing signals sourced by Clock cards in the Master shelf and delivery of those signals to the Expansion shelf output car...

Page 68: ...68 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 2 Engineering Ordering Information Card Overview Figure 2 11 Front Panel of the Expansion Controller Card ...

Page 69: ... it is not critical that an EC card get its clock from its preferred source This alarm is reported simply to indicate the situation when this card is currently not getting its clock from the preferred source Specifically Table 2 9 Expansion Controller Card Front Panel Indicators Indicator Color Description Power Green On The card is receiving power Off No power present Fuse Red On The Expansion Co...

Page 70: ... a valid link only by using CLK1 the alarm LED lights The leftmost Clock card and leftmost EC card are a preferred pair while the rightmost Clock card and rightmost EC card are a preferred pair NTP Server Card This section describes the TimeHub NTP Server card part number 090 55582 01 It provides details on operation configuration alarms events and specifications Conceptually the TimeHub NTP Serve...

Page 71: ...Hub 5500 User s Guide 71 Chapter 2 Engineering Ordering Information NTP Server Card The NTP Server card is equipped with eight status LEDs as shown in Figure 2 13 They are described in Table 2 10 Figure 2 13 Front Panel of the NTP Server Card ...

Page 72: ... packets or 1000 authenticated packets in a one second interval When the number of incoming packets during each one second interval has reached this processing limit subsequent packets will be dropped for the rest of this one second interval The above packet processing capacity is based on the assumption that incoming packets are evenly distributed in time The NTP Server card supports two redundan...

Page 73: ...ne and the associated EXTSYNC lines from the two clock cards and the IMC The 1 544 MHz clock is used to generate the 125 MHz NTP system clock In the future a GPS receiver on the NTP Connector card will provide the TOD information that the NTP Server card needs Outputs from the NTP Server card are Two Gigabit Ethernet ports for NTP traffic Each can use either an electrical or an optical connection ...

Page 74: ...nal The local NTP system clock is driven by 125 MHz clock which is derived from highly stable precision TimeHub clock The time error in 1 second is much smaller than 1 ns The GPS 1 PPS time tick has an accuracy of a few tens of nanoseconds and this makes the time accuracy of the NTP system clock a few tens of nanoseconds Secondary Server When a TimeHub system does not have access to stratum 0 TOD ...

Page 75: ...vers of the same or higher stratum level It is also a time server to lower stratum level servers or clients The TimeHub NTP Server whether configured as a primary or secondary server supports both unicast and broadcast multicast server functions Server Unicast In the Server Unicast role the TimeHub NTP Server responds to individual clients requests and exchanges NTP packets with them User sets the...

Page 76: ...ther information in the packet Clients and secondary servers care about authenticity of the NTP packets from the servers because they use the timestamps in the NTP packets to correct their local clocks Primary NTP servers don t use other servers and clients timestamps to correct its clock it supports authentication primarily for the benefits of clients and secondary servers Authentication requires...

Page 77: ...d clients MKEYIDm is also used to pick the key ID used when the TimeHub NTP card is a unicast server For server broadcast multicast The same 16 keys defined above are used for broadcast multicast Up to four broadcast multicast addresses can be defined per NTP card For each broadcast multicast address BCMKEYm is used to choose one of the 16 key IDs For client unicast Misc header info 4 bytes Root D...

Page 78: ...so share one IP address Port bonding refers to the redundancy between the two NTP ports on a single NTP card When the two ports on a NTP card are bonded they share the same IP address There are four possible connection setups In the following diagrams the active ports are green and standby ports are white Case 1 Single NTP card with No Port Bonding As shown in Figure 2 16 the two NTP ports do not ...

Page 79: ... When two NTP cards are installed adjacent to each other in a card group Figure 2 18 they are automatically configured for card level redundancy they cannot be used as two independent cards When port bonding is not used Port A on both NTP cards form a redundant pair and share one IP address Port B on both NPT cards form another redundant pair and must share a different IP address When the active N...

Page 80: ...OT the operator can also manual select which port on which NTP card is to be the active port or standby port Figure 2 19 Two NTP Server Cards with Port Bonding The provisioning for this setup is summarized below Keyword BONDMODE is set to ACTSTBY Keyword PPAIP is used to set the IP address of Port A The IP address of Port A automatically becomes the IP address for all four ports in this situation ...

Page 81: ...affic control is not activated a NTP Server card will accept packets from both NTP ports on a first come first served basis When in any one second interval the combined traffic loading from port A and port B has reached the packet processing limit of the card all subsequent packets will be dropped for the rest of this one second interval The current packet processing limits are 1000 authenticated ...

Page 82: ...ort B If all packets are authenticated NTP packets the long packets the TimeHub NTP card processing limit is 1000 packets in a one second interval In our example of 30 and 70 split between port A and port B the NTP card will accept 300 packets from port A and 700 packets from port B during a one second interval If the NTP traffic is 600 authenticated packets at port A and 600 authenticated packets...

Page 83: ...B and C and a single width Output Connector module for Group D You can also use the single width module in the 1 20 slot in Group A B or C One Output Connector module is available for use in an Expansion shelf Table 2 11 describes the LEDs on every module SFP A B Green Off No Ethernet connection On Green Ethernet link established On Flashing Green Ethernet activity traffic Card A S Green Amber On ...

Page 84: ...84 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 2 Engineering Ordering Information NTP Server Card Figure 2 20 TimeHub NTP Output Connector Modules ...

Page 85: ...sis or another chassis MGMT This connector allows you to download and install upgrades to the NTP Server card DS1 These wire wrap pins are reserved for future use Table 2 11 Status LED Indicators on the TimeHub NTP Output Connector Modules Indicator Color Description NTPA Green Yellow Green Link is valid Green and flashing yellow Link is valid and there is traffic Off Link is not valid NTPB Green ...

Page 86: ...rd 090 55542 01 DB9 connection cable CD with TimeScan THC and complete TimeHub documentation Clock cards 090 5551x 0x 1 minimum 2 recommended Quartz clock cards Quartz 5 input 090 55511 01 Note This clock does not support Expansion shelves Quartz 9 input 090 55512 02 Note This clock supports Expansion shelves Rubidium clock cards Rubidium 5 input 090 55513 01 Note This clock does not support Expan...

Page 87: ... 090 55583 01 Up to 8 per Master Remote 5 MHz Output Connector module Master shelf 090 55596 01 1 per 5 MHz Output group NTP Server card 090 55582 01 Each shelf master remote or expansion supports up to 3 active NTP cards This means you can install up to 3 pairs per shelf When they are in pairs the system automatically makes them an active standby pair NTP Output modules Master or Remote shelf Gro...

Page 88: ...minimum 2 recommended Expansion Controller card 090 55545 01 Output Driver cards 090 55581 01 1 minimum 2 recommended up to 16 per Expansion shelf Output card 090 55581 01 DS1 Output module kit for Expansion shelf 990 55591 02 1 minimum 2 recommended up to 16 DS1 and CC total per Expansion shelf DS1 Output module 090 55591 02 Round RJ 21 cable 060 55591 02 CC Output module kit for Expansion shelf ...

Page 89: ...installed output card Master Remote or Expansion shelf Blank panel for Expansion Controller card 093 55598 03 Blank panel to cover slot of uninstalled Expansion Controller card Expansion shelf only Blank panel for Output module 093 55599 01 Blank panel to cover space of unused output module Master Remote shelf only Short blank panel for Output module 093 55599 02 Blank panel to cover space of unus...

Page 90: ...r equivalent for verifying power connections to the shelf Dual channel oscilloscope with 100 MHz minimum bandwidth for verifying clock input signal s are within the specified input voltage range and checking output waveforms Laptop computer with communications software e g Windows Hyperterminal ProComm Plus CrossTalk or TimeScan THC software for setting system parameters ...

Page 91: ...500 This chapter includes Overview Installation Checklist Unpacking the TimeHub 5500 Rack Mounting the TimeHub 5500 Making Ground and Power Connections Installing Modules into the Rear Panel Making Signal Connections Installing the Cover Installing Expansion Shelves Removing Expansion Shelves Chapter ...

Page 92: ...stallation location can only be gained by service personnel or users who have been instructed in the reasons for the restrictions applied to the location and about any precautions that they should take Access is by lock and key or other means of security and is controlled by the authority responsible for the location The TimeHub 5500 shelf when installed occupies 10 5 in 26 7 cm 6 RU of vertical r...

Page 93: ...Hub 5500 Warning The intra building port s of the equipment or subassembly is suitable for connection to intra building or unexposed wiring or cabling only The intra building port s of the equipment or subassembly MUST NOT be metallically connected to interfaces that connect to the Out Side Plant OSP or its wiring These interfaces are designed for use as intra building interfaces only Type 2 or Ty...

Page 94: ...of the module panel must be properly secured Ventilation Considerations For proper ventilation there should be at least 1 RU 1 75 inches 4 4 cm of free space above and below the shelf Installation Checklist To verify that each step in the installation procedure is complete fill in the checklist in Table 3 1 as you complete the steps You can complete the procedures in any order your site requires t...

Page 95: ...ge 106 6 Installing Modules into the Rear Panel on page 109 7 Making Signal Connections on page 114 8 Installing the Cover on page 125 9 Installing the Management Card on page 139 including setting the internal switch 10 Installing the Clock Cards on page 143 including setting the internal switch 11 Installing Output Driver Cards on page 146 12 Installing Expansion Shelves on page 126 13 Installin...

Page 96: ...ket with the holes on the side of the shelf Use suitable screws for attaching the mounting bracket Ensure that both brackets are attached at equal distances from the front of the shelf 2 Mount the instrument to the rack rails with the appropriate number of screws and washers for the rack Figure 3 1 Mounting Options for the Shelf Installing the Wire wrap Panel If you are using an existing wire wrap...

Page 97: ... 55595 11 and 093 55595 12 respectively to complete the installation A rack extender bracket is included for 23 inch racks Figure 3 3 illustrates one way to assemble the wire wrap panel with the Cable Management kit and the rack extender bracket You can mount the wire wrap panel with either the connectors or the wire wrap pins facing the front of the rack follow your company procedures Figure 3 2 ...

Page 98: ... a 23 inch Shelf If you are installing an Expansion shelf mount one wire wrap panel above the Expansion shelf and the other below the Expansion shelf leaving 1 RU above and below each wire wrap panel for ventilation A Figure 3 4 illustrates an example of a Master shelf and wire wrap panel and Figure 3 5 shows an example of a Master and Expansion shelf with three wire wrap panels ...

Page 99: ...097 55501 01 Revision M January 2009 TimeHub 5500 User s Guide 99 Chapter 3 Installing the TimeHub 5500 Rack Mounting the TimeHub 5500 Figure 3 4 Sample Rack Installation of a Master Shelf ...

Page 100: ...00 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 3 Installing the TimeHub 5500 Rack Mounting the TimeHub 5500 Figure 3 5 Sample Rack Installation of a Master and Expansion Shelf ...

Page 101: ...sconnect power from the shelf by removing the fuses from the front panel or by disconnecting the wires from the power terminals on the rear panel of the shelf 2 Remove the Management Card in order to obtain access to switch SW1 For improved access you can also remove the CLK1 card from the shelf Note Management cards 090 55542 01 and Clock cards 090 55512 0x 090 55514 0x with firmware versions 410...

Page 102: ... Direct Current Isolated DC I For the DC C configuration the DC return terminal or conductor is not connected to the equipment frame or the groundings means of the equipment For the DC I configuration the BR terminal or conductor is connected to the equipment frame or to the grounding means of the equipment The TimeHub is part of a Common Bonding Network CBN Table 3 2 Master Remote Rotary Switch S...

Page 103: ...meHub shelf to the Earth Ground on the rack Connect it to the Earth Ground using the appropriate method described in With a Ground Bar or Without a Ground Bar below 2 Crimp the supplied UL listed Ring Lug to one end of the 1 5 mm2 16 AWG wire and connect it to the ground terminals on each of the side panel ground terminals using the 10 32 machine nut and placing the supplied 10 external star lock ...

Page 104: ...uch as Kopr shield spray 2 Crimp a supplied UL listed Ring Lug to the other end of the 1 5 mm2 16 AWG ground wire 3 Clean the connection point on the rack to a bright finish and coat it with an electrically conductive antioxidant compound such as Kopr shield spray 4 Connect the Ring Lug to the rack with supplied 12 24 screws and external star lock washers Do not connect multiple connectors to the ...

Page 105: ...6 AWG wire and connect it to the ground terminals on the front panel of the wire wrap panel Figure 3 9 3 Complete the ground connection using one of the methods described above 4 Using a digital voltmeter measure between the ground and chassis and verify that no voltage exists between them Figure 3 9 Wire wrap Panel Ground Connection Making Power Connections Connect power leads to the shelf using ...

Page 106: ...ting Power Connections To verify that the power connections to the TimeHub 5500 Main shelf are correct follow the steps in this section Use a digital multimeter Fluke 77 or equivalent to make the measurements Refer to Figure 3 8 Figure 3 10 and Figure 3 20 Use this procedure for Master Remote and Expansion shelves 1 Remove all fuses that supply power to the shelf from the fuse panel and from the f...

Page 107: ...erminals on the TB2 terminal block The multimeter should indicate 42V dc to 56V dc 10 Install both 3AG 5 A fuses fuse A and fuse B in the front of the shelf The shelf is now powered up Installing the NTP Server Card The NTP Server card plugs into one of the output slots labeled A1 through D8 on the front panel of the TimeHub Master shelf or slots A1 through H16 on the Expansion shelf 1 Align the c...

Page 108: ... slot D 1 and D 2 The TimeHub Expansion Shelf has a maximum of three pairs of NTP Server cards separated by pairs of DS1 CC output cards Caution To avoid possible damage and intermittent failures ensure that you have completely inserted the card into the shelf and that you have securely tightened the captive screws Table 3 3 Maximum Loading Configuration for the TimeHub Master Shelf Slot Card MC M...

Page 109: ...tall Output Connector modules and the Input Alarm Connector module on the rear panel of the shelf as shown in Figure 3 11 B 1 DS1 CC Output Card 090 55581 01 B 2 DS1 CC Output Card 090 55581 01 C 1 NTP Server Card 090 55582 01 C 2 NTP Server Card 090 55582 01 D 1 DS1 CC Output Card 090 55581 01 D 2 DS1 CC Output Card 090 55581 01 E 1 NTP Output Card 090 55582 01 E 2 NTP Output Card 090 55582 01 F ...

Page 110: ...Alarm Connector module To install the module align the pins on the rear of the module with the connector on the shelf Carefully seat the module onto the shelf Tighten the six captive screws to complete the installation Installing Output Connector Modules You can install up to seven Output Connector modules in any of the locations on the rear panel of a Master or Remote shelf see Figure 3 11 The Ou...

Page 111: ...river cards The Output Connector modules for an Expansion shelf cannot be used on a Master Remote shelf For DS1 outputs use Output Connector module p n 090 55591 02 which is part of the DS1 Output Module Kit 990 55591 02 For CC outputs use Output Connector module p n 090 55593 02 which is part of the CC Output Module Kit 990 55591 02 To install the Output Connector module on an Expansion shelf ali...

Page 112: ... the NTP Server card is installed When you install the NTP Server card in any slot from A1 to C6 install the double wide NTP Output Connector module part number 090 55594 01 in the corresponding group A B or C on the rear panel of the Master shelf or Install a single wide NTP Output Connector module part number 090 55594 03 on ports 1 20 of groups A B or C Leave ports 21 40 blank When you install ...

Page 113: ...nput clock card then install the blank panel 090 55598 01 in the empty slot space reserved for the second card Output Driver Blank Panels All Shelves Install a blank panel 093 55598 02 in empty slots where Output Driver cards 5 MHz Output Driver cards or NTP Server cards are not installed Output Connector Module Blank Panels Master and Remote Shelf Only The blank panel p n 093 55599 01 can be used...

Page 114: ...ls in the back of the Expansion shelf Making Signal Connections After you install the shelf in the rack you need to make the following types of signal connections Shelf to connection panel Timing inputs Timing outputs Communications Alarms Figure 3 13 shows the power timing input and communication port connectors on the rear panel of the shelf If you are not installing an Expansion shelf you do no...

Page 115: ...r of outputs used Refer to Figure 3 14 Dress the cables using your company standards Earth Grounding of cables and systems must be a single point ground Each Earth Grounding Lug must not be stacked upon any other grounding lug Note The shield drain conductor is provided to ground to the rack frame ground at the wire wrap connector end If the timing lead is connected to a Network Element with an is...

Page 116: ...om recommends that you cut back the sheathing on the cable such that only the Tip Ring and insulated Shield conductors enter the cable management kit Removing up to 24 inches 61 cm of shielding will have little or no effect on the stability of the timing signals Figure 3 14 Connecting Outputs to the High Density Wire wrap Panel Figure 3 15 illustrates how to connect the TimeHub 5500 to existing wi...

Page 117: ... Figure 3 15 Connecting Outputs to Existing Wire wrap Panels Figure 3 16 and Figure 3 17 illustrate how to connect the A through D and E through H outputs from the TimeHub 5500 Expansion shelf to the High Density Wire wrap Panel respectively The diagrams illustrate suggested cable routing using the optional Cable Management trays ...

Page 118: ... 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 3 Installing the TimeHub 5500 Making Signal Connections Figure 3 16 Connecting A D Outputs of the Expansion Shelf to the High Density Wire wrap Panel ...

Page 119: ...ng input connections on the Input Alarm Connector module Figure 3 18 Install the module as described in Installing the Input Alarm Connector Module on page 110 DS1 Reference You can connect up to four DS1 reference inputs to the TimeHub 5500 use the wire wrap pins labeled DS1 TERM IN on the Input Alarm Connector module Connect the tip wire to the pins labeled T the ring wire to the pins labeled R ...

Page 120: ... DS1 BRIDG IN pins on the Input Alarm Connector module only when you install nine input Clock cards 090 55512 02 or 090 55514 02 Connect the tip wire to the pins labeled T the ring wire to the pins labeled R and the shield if connected at the TimeHub 5500 to the pins labeled S PRS Input Connect the PRS input to the BNC connector labeled 5 10 MHz IN on the Input Alarm Connector module PRS input Com...

Page 121: ...om the TimeSource to the first NTP Output Connector module is 1000 feet 304 m 2 Connect the other end of the cable to the TOD TimeSource connector on the NTP Output Connector module Connecting to the NTP Network You can use either an optical or electrical network cable with the TimeHub NTP Server card Install the appropriate SFP interface module into the slot on the NTP Server card then attach the...

Page 122: ... 3 13 for the connector location Table 3 6 describes the connector pinout Each TimeHub 5500 has its own IP address that can be set through the local RS 232 port as described in Communicating by Ethernet on page 151 Once the IP address has been set and a LAN connection made the TimeHub 5500 can be remotely accessed on a network Table 3 6 Pinout of LAN Connector Pin Signal Abbreviation Direction 1 T...

Page 123: ...nd critical error conditions within the TimeHub 5500 External and universal alarms allow you to connect alarms from other equipment You can also monitor alarms using the TimeScan THC software Alarms are transmitted over the serial or Ethernet communications port you do not have to make any alarm connections on the Input Alarm Connector module The Alarm Cutoff pushbutton on the front panel of the M...

Page 124: ...eps to ensure proper alarm connections to the TimeHub 5500 1 Ensure that both fuses are removed from the front panel 2 Locate the OFFICE ALARM critical CR major MJ and minor MN wire wrap pins on the Input Alarm Connector module 3 Connect office alarms to the wire wrap terminals 4 Verify that correct wiring connections have been made 5 Reinstall both fuses Note If simultaneously occurring alarms ha...

Page 125: ...otifying a remote management system of the external alarm condition There are two types of external alarm inputs contact closure only and universal Contact Closure Only External Alarms These six sets of alarm inputs 5 10 operate from any relay contact closure Severity levels associated with these alarm inputs are MAJOR inputs 5 and 6 MINOR inputs 7 10 Universal External Alarms These four sets of a...

Page 126: ...hree position terminal blocks as shown in Figure 3 20 The connections are not the same as on the Master shelf Figure 3 20 Power and Ground Connections on the Expansion Shelf Install power and ground connections using the procedure described in Making Ground and Power Connections on page 102 Setting the Expansion Shelf Address You can install up to four Expansion shelves in a daisy chain to a Maste...

Page 127: ...cess you can also remove the adjacent Output Driver card from the shelf 3 Set switch SW1 on the Expansion shelf as appropriate using an 8 inch 20 cm long screwdriver with a 1 8 inch 3 mm blade A small arrow on the rotary switch identifies the selected setting Table 3 8 shows the function associated with the rotary switch settings Caution To avoid a loss of timing signals perform the following proc...

Page 128: ... module part number 090 55591 02 which is part of the DS1 Output Module Kit 990 55591 02 Figure 3 22 Location of Output Connector Modules on the Rear Panel of the Master Remote Shelf For CC outputs use connector module part number 090 55593 02 which is part of the CC Output Module Kit 990 55591 02 To install the Output Connector module on an Expansion shelf align the pins on the rear of the module...

Page 129: ...iming and data to a downstream Expansion shelf This section describes the procedures to connect a single Expansion shelf and multiple Expansion shelves Connecting a Single Expansion Shelf You make the connections on the rear panel of the Master and Expansion shelves as shown in Figure 3 23 You need two cables 060 55505 01 one gender changer 128 55505 01 and two Termination Connectors 090 55505 01 ...

Page 130: ...onnections on the rear panel of the Master and Expansion shelves as shown in Figure 3 24 You need two cables 060 55505 01 for each Expansion shelf one gender changer 128 55505 01 and two Termination Connectors 090 55505 01 which are included with the Expansion shelf kit 1 Connect one end of cable 060 55505 01 to the Expansion Link 1 connector on the rear panel of the Master shelf The connectors ar...

Page 131: ...on M January 2009 TimeHub 5500 User s Guide 131 Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves Figure 3 24 Connecting Multiple Expansion Shelves Address Switch SW1 set to 1 Address Switch SW1 set to 2 ...

Page 132: ...E ALL as shown in the following example and verify that the expansion shelf s current hardware configuration is listed in the response Command Example Issue the following TL1 command RTRV NETYPE ALL Or using TimeScan THC 1 Select Mode Command Response from the main menu to open the Command Response window 2 Select TL1Commands RTRV NETYPE ALL or press F2 to send the RTRV NETYPE ALL query A typical ...

Page 133: ... connected each shelf is identified by Sx where x is value of S1 Valid values are 1 2 3 and 4 The S1 CLK1 line identifies the Expansion Controller card in the EC1 slot The S1 CLK2 line identifies the Expansion Controller card in the EC2 slot S1 OUT1A S1 OUT2A and S2 OUT3B identify that there are Output Driver cards in slots 1A 2A and 3B Each card has a CC and DS1 Output Connector card installed on...

Page 134: ...is listed in the response 11 Reinstall the ECC2 card and verify that no alarms are reported for the expansion shelf It may take from 15 to 30 seconds for the alarm caused by the removal of the ECC2 card to clear on the IMC 12 Remove the Expansion Link 1 cable 13 Verify that an alarm appears for the event 14 Enter the command RTRV NETYPE ALL and verify that the expansion shelf s current hardware co...

Page 135: ...sion shelf If this was the only Expansion shelf in the system continue with step 3 2 Install the Termination Connectors onto the last Expansion shelf in the chain 3 Issue the following TL1 commands to remove the shelf from the Clock database ed eqpt s1 clk1 sv1 eclkexp n ed eqpt s1 clk2 sv1 eclkexp n 4 Issue the following TL1 commands to verify that the Expansion shelf is removed from the database...

Page 136: ...136 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 3 Installing the TimeHub 5500 Removing Expansion Shelves ...

Page 137: ...Cards into the Expansion Shelf Provisioning Master Shelf Parameters Provisioning Inputs on a Master Shelf Provisioning the NTP Parameters Testing an Expansion Shelf Provisioning Inputs on a Remote Shelf Testing the Clock Input Signals Provisioning the Outputs Configuring CC Signals Testing the NTP Cards Checking System Operation Enabling Security Setting the Configuration to Factory Defaults ...

Page 138: ...nstallation process contact Symmetricom Global Services See Contacting Symmetricom Global Services on page 264 for telephone numbers Installing Cards into the Front Panel The procedures in this section describe how to install the cards into the front panel of the TimeHub 5500 shelf See also Installing Modules into the Rear Panel on page 109 Refer to Figure 4 1 for the location of the fuse holders ...

Page 139: ...rrectly using an ohmmeter The relay pins are on the Input Alarm Connector module on the rear panel of the shelf Measure between the Critical Common pin and the NO pin and again between the Critical Common pin and the NC pin The Common to NO readings should be shorted and the Common to NO readings should be open Repeat for the Major relay pins 5 Remove the A fuse from the front panel of the shelf b...

Page 140: ...Figure 4 2 Location of Switch S1 on the Management Card Table 4 1 Management Card S1 Switch Settings S1 Section Position Description Factory Setting 1 On Security enable Off Security disable The System Security Disabled alarm SECUALM occurs when the switch is in this position AND switch 4 is in the Off position X 2 On Force disable local port local port can be disabled by TL1 command X Off Force e...

Page 141: ... IP match disable communication from any network will be accepted X 4 On Disables the SECUALM System Security Disabled alarm which is set when S1 is set to Off You must power down and power up the Management card for this switch setting to take effect Off Enables the SECUALM System Security Disabled alarm which is set when S1 is set to Off You must power down and power up the Management card for t...

Page 142: ...142 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 4 Testing and Configuring the TimeHub Installing Cards into the Front Panel Figure 4 3 Front Panel of the Management Card ...

Page 143: ...rd into the CLK 2 slot again ensure that the card is aligned properly and is fully seated Do not tighten the captive screws at this time If you are using only one Clock card then you must provision the system for single clock operation see Step 5 on page 177 LED Sequence The Warmup LED turns on when you insert the card into the shelf When the Warmup LED turns off on the Clock card s from 2 to 20 m...

Page 144: ...144 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 4 Testing and Configuring the TimeHub Installing Cards into the Front Panel Figure 4 4 Front Panel of the Clock Card ...

Page 145: ...hts only if the shelf has been configured for Remote operation See Figure 4 4 for the location of the Remote LED You can also check the setting by issuing the TL1 command MAINCLK see the TimeHub 5500 TL1 Reference Manual for details If the Remote LED responds as expected the shelf is now properly configured Table 4 2 Clock Card S1 Switch Settings S1 Section Position Description Factory Setting 1 O...

Page 146: ...he shelf see Installing Output Connector Modules on page 110 The Alarm LED indicates that the Master shelf has not yet initialized the card i e received configuration information from the Master shelf 2 The Master shelf automatically initializes the Output Driver cards according to the current user configuration established for the slot into which the card is inserted As each card becomes initiali...

Page 147: ...ink cables The corresponding Link LED should turn off Reconnect the cable and the Link LED lights 2 Install the second EC card for this Expansion shelf into the EC2 slot if you are using one The Power and Link LEDs should be the same as the first EC card The EC cards are independently connected to and evaluating both links The following steps in the link check procedure are optional because the pr...

Page 148: ...er shelf automatically initializes the Output Driver cards according to the current user configuration established for the slot into which the card is inserted As each card becomes initialized its Alarm LED goes out At this point the card is configured per desired setup and is ready to be further configured if desired If outputs have been enabled for that card they should be active Note that for a...

Page 149: ...meScan THC window appears as shown in Figure 4 6 3 Click RS 232 in the Communication tab and set the Comm Port field to match the port connected to the TimeHub 4 Select the baud rate default baud rate is 9600 then click the Connect check box The program connects to the TimeHub 5 Log in as the admin user by selecting Mode of Operation Advanced Mode or by pressing F5 The Advanced Mode pop up window ...

Page 150: ...onnector on the Management card 2 Configure the emulation software for 8 data bits 1 stop bit no parity and 9600 baud rate 3 Start the terminal emulation software and press the TL1 termination character The system should send a response similar to the following SYMMBITS 04 10 19 15 25 47 M 0 DENY IICT Input Invalid Correlation Tag CTAG If there is no response check the system installation and setu...

Page 151: ...alog box asks if you want to connect to Comm Port 1 Click OK The TimeHub TimeScan THC window appears as shown in Figure 4 6 3 Click RS 232 in the Communication tab and set the Comm Port field to match the port connected to the TimeHub 4 Select the baud rate default baud rate is 9600 then click the Connect check box The program connects to the TimeHub 5 Log in as the admin user by selecting Mode of...

Page 152: ... IP Dialog Box 9 Click Apply when the parameters are set correctly A popup appears requesting you to confirm that you want to make these changes Click Yes A dialog box similar to that in Figure 4 8 appears Figure 4 8 Network Parameters Dialog Box 10 Verify that the settings are as desired then click Yes The Management card restarts with the new settings thub0054 thub0055 ...

Page 153: ...mands and responses 3 Issue the following command to copy the working memory to auxiliary memory CPY MEM NET ctag WKG AUX 4 Issue the following command to set the TimeHub 5500 IP address ED EQPT ctag IPNEX a a a a where each a is an independent value between 0 and 255 To verify the parameter issue the Retrieve Equipment command RTRV EQPT ctag PARAMETER IPNEX 5 Issue the following command to set th...

Page 154: ... To verify the parameter use the Retrieve Equipment command RTRV EQPT ctag PARAMETER IPEM1X 8 Use the Edit Equipment command to set the local manager IP address ED EQPT ctag IPLM1X a a a a where each a is an independent value between 0 and 255 To verify the parameter use the Retrieve Equipment command RTRV EQPT ctag PARAMETER IPLM1X 9 Specify the port number for commands and responses by issuing t...

Page 155: ...for details 2 Telnet from your PC to the IP address assigned to the TimeHub If security is enabled on the TimeHub see Enabling Security on page 197 you must log in 3 To log in issue the ACT USER command ACT USER tid aid ctag pid where aid is your user name pid is your password If you do not have a user name and password contact the administrator for the TimeHub 5500 Connecting to TimeScan THC Afte...

Page 156: ...essages from the TimeHub This form updates whenever the TimeHub sends out an event message For example when you install an Expansion Controller card an event is generated and displayed You can also open a window that shows generalized communication to and from the TimeHub by selecting Mode Command Response Use this window to observe the responses to the following TL1 commands each of which can be ...

Page 157: ...TimeHub responds with the COMPLD message Using TL1 Commands You set the date and time in the TimeHub using the ED DAT TL1 command To set the time and date issue the command ED DAT SC001 04 10 19 09 44 49 where SC001 is the ctag 04 10 19 is the date October 19 2004 09 44 49 is the time 09 44 49 The TimeHub responds with the COMPLD message Setting the System ID The System ID sid is a name that you a...

Page 158: ...OMPLD message Using TL1 Commands To set the system ID issue the command SET SID SC002 SYMMBITS where SC002 is the ctag and SYMMBITS is the system ID The TimeHub responds with the COMPLD message Setting the Target ID The Target ID tid is an optional part of a TL1 command that identifies which device should process the command You can use up to 20 characters to identify the target Note If you includ...

Page 159: ... all the cards verify that the shelf is configured as expected Using TimeScan THC 1 Select Mode Command Response from the main menu to open the Command Response window 2 Select TL1Commands RTRV NETYPE ALL or press F2 to send the RTRV NETYPE ALL query A typical response is as follows SYMMBITS 04 10 19 11 14 33 M SV36 RTRV TSG Symmetricom 5500 TSG S0 IMC 090 55542 01 A R4209C J86746 D0TPN0NAAA 10606...

Page 160: ...at there are Output Driver cards in slots 1A 2A and 3B Each card has a CC and DS1 Output Connector card installed on the back of the shelf Using TL1 Commands Issue the following TL1 command RTRV NETYPE ALL A typical response is shown in the previous section Provisioning Inputs on a Master Shelf After you connect the input signals to the Input Alarm Connector card described in Connecting Timing Inp...

Page 161: ...rs as shown in Figure 4 12 Figure 4 12 The TimeScan THC Input Screen The set of possible inputs appears at the top of the columns The top row in this table labeled Enabled shows which inputs are enabled 2 Place a check in the Enabled row for each input you use and uncheck inputs that you will not use The PRS input is the BNC connector on the Input Alarm Connector card 3 Select which inputs will no...

Page 162: ...tting needs to be changed Use the T1 Framing row on the Configuration Input tab to set the framing of selected input as appropriate 7 Set Bridged mode for enabled DS1 inputs if needed Generally DS1 inputs connected to TimeHub will be terminated at the input However if the reference signal is bridged which means it will be nominally 20 dB lower in amplitude the bridged selection should be set for a...

Page 163: ...the Input Alarm Connector module pins labeled DS1 TERM IN on the row labeled 1 refer to Figure 3 8 and Figure 3 18 Typically this can be any ESF framed DS1 output from the Main shelf Such a signal always contains SSM encoding reflecting the current synchronization quality level of the Main shelf 2 Verify that the E LED on the Clock card is lit if there are two Clock cards in the shelf observe this...

Page 164: ...be selected as the active SSM source instead of the DS1 input 1 signal When both SSM inputs are valid the one that will be used is determined by the setting of the PRIORITY keyword The default is that the DS1 1 input has the higher priority so it will be selected when both inputs are qualified See TL1 manual for details The general TL1 command format for enabling or disabling an input is ED SYNC C...

Page 165: ...g N to disable monitoring To prevent retrieval of status information for any disabled inputs disable the monitoring capability For example to disable monitoring of the DS1 input 2 issue the command ED SYNC CLK 2 SV343 MONITOR N To determine if monitoring is enabled for a specific input issue the command RTRV SYNC CLK a ctag PARAMETER MONITOR 8 Change priorities if desired The priority setting prov...

Page 166: ...f you do not want to use SSM for input qualification skip to step 12 Select SSM to be used as an input qualification criteria by issuing the command ED EQPT CLK SV41 SYNCMDE SSM 11 Set Bridged mode for enabled DS1 inputs if needed Generally DS1 inputs connected to TimeHub will be terminated at the input However if the reference signal is bridged which means it will be nominally 20 dB lower in ampl...

Page 167: ...d ED SYNC CLK 1 SV48 SSMENB Y To retrieve the current setting of SSM decoding for input 1 issue the command RTRV EQPT CLK 1 SV49 PARAMETER SSMENB To continue provisioning a Master shelf continue at Provisioning the Outputs on page 180 Provisioning the NTP Parameters You must assign an IP address mask and gateway address for each port you are using on the NTP Server card Each time you change an NTP...

Page 168: ...e two ports are bonded they share the same IP address You only need to provision the Port A IP address when you are using port bonding To enable port bonding issue the following commands ED EQPT S0 OUTA CTAG BONDMODE ACTSTBY ED EQPT S0 OUTA CTAG NTPPAIR APPLYCFG To disable port bonding issue the following commands ED EQPT S0 OUTA CTAG BONDMODE NOBOND ED EQPT S0 OUTA CTAG NTPPAIR APPLYCFG Provision...

Page 169: ...k In other words there are 16 keys for this network To enable MD5 Authentication issue the following commands ED EQPT S0 OUTA CTAG MKEYID1 any number from 1 65534 ED EQPT S0 OUTA CTAG MKEYVAL1 string up to 32 characters ED EQPT S0 OUTA CTAG NTPPAIR APPLYCFG The key ID and key value numbers must be the same in order to correlate the two Provisioning for Traffic Load Limit The NTP Server card implem...

Page 170: ...g Expansion Shelves on page 126 For communications connection instructions see Establishing a Connection to the TimeHub on page 148 For provisioning instructions see Provisioning Master Shelf Parameters on page 156 Perform the following procedure to verify the operation of the expansion shelf 1 Establish either a serial or Ethernet communications connection to the TimeHub 5500 2 Enter the command ...

Page 171: ...299465 S1 OUT1A 090 55581 01 B R4236A 00M16673 D0TPJNMAAA 106045 CC DS1 S1 OUT2A 090 55581 01 B R4236A 00M16687 D0TPJNMAAA 106045 CC DS1 S1 OUT3B 090 55581 01 B R4236A 00M16650 D0TPJNMAAA 106045 CC DS1 The first set of responses those that begin with S0 identify hardware in the Master shelf The second set of responses those that begin with S1 identify hardware in the Expansion shelf In this exampl...

Page 172: ...RV NETYPE ALL and verify that the expansion shelf s current hardware configuration is listed in the response 8 Reinstall the ECC1 card and remove the ECC2 card 9 Verify that an alarm is generated reflecting the removal event 10 Enter the command RTRV NETYPE ALL and verify that the expansion shelf s current hardware configuration is listed in the response 11 Reinstall the ECC2 card and verify that ...

Page 173: ...of the CC inputs are enabled The default is that both inputs are enabled LEDs on the front panel of the Clock card s in the Remote shelf indicate the enable status of the inputs When you enable an input it can be used as an input timing reference You should disable unused inputs so that they do not generate alarms such as Input Disqualified The following procedure describes how to set up the CC1 i...

Page 174: ...k mark is present for CC inputs that you will use uncheck CC inputs that you will not use 3 Verify that the input is enabled by checking the E LED on the front panel of either Clock card see Figure 4 4 Note that the Clock panel labeling is to the right of the LEDs in the INPUTS section The first row of three LEDs is labeled CC1 In this step verify that the E LED in that row is lit Note that when t...

Page 175: ...al present or improper connection to the Input Alarm Connector module 5 Set the priority of either CC1 or CC2 as desired The priority setting provides a way to select one of the CC inputs when both inputs are qualified The lower the number the higher the priority The default is that the CC1 has higher priority than CC2 CC1 is always used when it is qualified Assuming that CC1 is the only qualified...

Page 176: ...rify that the input is enabled by checking the E LED on the front panel of either Clock card see Figure 4 4 Note that the Clock panel labeling is to the right of the LEDs in the INPUTS section The first row of three LEDs is labeled CC1 In this step verify that the E LED in that row is lit Note that when the E LED is lit the input has been selected as a possible timing reference it does not indicat...

Page 177: ...in when in Freerun See the TimeHub 5500 TL1 Reference Manual for details 4 Set the priority of either CC1 or CC2 as desired The priority setting provides a way to select one of the CC inputs when both inputs are qualified The lower the number the higher the priority The default is that the CC1 has higher priority than CC2 CC1 is always used when it is qualified The general TL1 command format to se...

Page 178: ...y that the clock input signal s are within the specified input voltage range perform the following procedure using a dual channel oscilloscope with a 100 MHz minimum bandwidth 1 Set the oscilloscope controls as listed in Table 4 4 Consult the oscilloscope manufacturer s manual for details and operating instructions 2 Connect the X10 probes to the channel 1 and channel 2 oscilloscope inputs and ins...

Page 179: ... range A Sweep Mode AUTO TRIGGER Horizontal Display Switch A Time Div Switch for CC for DS1 20 µs 500 ns A Sweep FULL Horizontal Position Control mid range A Triggering Slope Coupling Source or AC INT Note Adjust the oscilloscope s volts per division scale to the appropriate level to get a measurable pulse amplitude on the screen for example to measure a 0 dB DSX TERM signal set the volts per divi...

Page 180: ...ds see Using TL1 Commands on page 183 You can create labels for each output port on systems equipped with IMC cards using the new CPU that runs software version 4 1 3 or higher See the TimeHub TL1 Reference Guide for more information on port labeling Using TimeScan THC You can provision outputs using the Configuration Output tab in the TimeScan THC application as shown in Figure 4 15 Note 5 MHz Ou...

Page 181: ...isioning section As shown in the form above the A output group is currently in service 3 Use the drop down boxes in the Provisioning section to select the type of card you are provisioning whether protection is required a backup card must be installed and the output type for ports 1 20 and 21 40 Card type An event is generated if you install an Output Connector card that is not the same as the val...

Page 182: ...hat can be viewed in the above form shows that ports 7 through 26 are all turned on The scroll bar allows the other ports to be seen Right click in this portion of the window to enable or disable all inputs at once Requirements DS1 output waveforms must be as shown in Figure 4 16 CC output waveforms must be as shown in Figure 4 17 5 MHz output waveform must be 2 1 V RMS 10 into 75 For DS1 output w...

Page 183: ...framing if appropriate and enable the specific port 1 Place the card in service by issuing the following TL1 command ED EQPT S1 OUTC SV267 INSRVC Y In the above example the card being put in service is located in Expansion shelf 1 S1 the card is in the C group OUTC and SV267 is the ctag 15 625 s 5 9 8 s 5 2 7 V to 5 5 V 2 7 V to 5 5 V Bipolar violation Bipolar violation Pulse rise time 500 ns Test...

Page 184: ... Y 3 If this port is connected to a DS1 Output Connector card you may need to provision the output framing Issue the following TL1 command ED EQPT S1 OUTC PG2 SV271 OUTESF Y where S1 indicates Expansion shelf 1 OUTC indicates output group C PG2 indicates Program Group 2 channels 21 40 SV271 is the ctag OUTESF Y indicates ESF N indicates D4 SF The response to the above command is SYMMBITS 04 10 11 ...

Page 185: ... SYMMBITS 02 07 11 10 52 27 M SV276 COMPLD S1 OUTC 25 SQUELCH N 6 Set the cable compensation for Composite Clock outputs using the procedure in Configuring CC Signals on page 185 Securing Cards in the Shelf Using a Phillips head or Pozidrive screwdriver secure all the cards to the shelf by tightening the captive screws at the top and bottom of the card front panels Configuring CC Signals When conf...

Page 186: ...7 CCALIGN Y or click the Align CC Outputs to CC Input button on the Configuration Input screen in TimeScan THC When CCALIGN is set to Y all output CC signals are continually aligned with the CC IN 1 input You can verify that the alignment is occurring by observing the CC input perhaps another one coming from the same source and a CC output from the Master shelf on an oscilloscope Since the CC sign...

Page 187: ... the output phase to shift suddenly Setting the Delay on CC Outputs For both Master and Remote shelves you can apply a timing offset to the CC outputs to compensate for time delay associated with long cable runs You set the timing offset set in 80 nanosecond increments or in 100 foot increments using the CCDENB and CBCOMP or CCDEL TL1 keywords or you can set the timing offset in 100 foot increment...

Page 188: ... ports that will have the compensation applied A window appears as shown in Figure 4 19 Figure 4 19 Enabling Ports for CC Cable Compensation 3 Click the box that correspond to the ports that will have compensation then click Close Each individual output port can be selected to have the delay feature enabled or disabled For example it is possible to delay ports 29 and 30 of a given card group while...

Page 189: ...compensate for cable delay use a negative value For example if a Master shelf is providing a CC output to a Remote shelf and the cable delay is 1 9 s set the CCDEL value to 1900 nanoseconds The alignment of the CC signal s at the Remote shelf will be matched with a non delayed CC output signal generated at the Master shelf Testing the NTP Cards Perform the tests in this section to verify that the ...

Page 190: ...address mask and gateway for Port A and Port B Note that the IP addresses are not filtered ED EQPT Sa OUTc CTAG PPAIP ip_address ED EQPT Sa OUTc CTAG PPAMASK subnet_mask ED EQPT Sa OUTc CTAG PPAGATE gateway_ip ED EQPT Sa OUTc CTAG PPBIP ip_address ED EQPT Sa OUTc CTAG PPBMASK subnet_mask ED EQPT Sa OUTc CTAG PPBGATE gateway_ip where a shelf number 0 to 4 0 Master 1 4 Expansion b NTP card group A D...

Page 191: ... B IP address Open a command window in Windows XP click Start select Run type cmd and click OK Type ping ip_address 11 Verify that a reply is received from each port If a Request timed out message is received ensure that the computer is correctly connected to the SFP port via a cross over cable or hub switch and that the computer and the Port A and Port B IP addresses are on the same subnet Verify...

Page 192: ...e SymmTime window and select Sync Servers The Sync Servers window appears similar to the example shown in Figure 4 20 Figure 4 20 The Sync Server Window in SymmTime 3 Highlight all server names in the Active Servers pane and click the down arrow This moves them to the Unused Servers pane 4 Click Add Server The New Server window appears as shown in Figure 4 21 Figure 4 21 The New Server Window in S...

Page 193: ... the Sync Servers window 9 Right click anywhere in the SymmTime window and select Sync Status The Synchronization Status window appears as shown in Figure 4 22 Figure 4 22 The Synchronization Status Window in SymmTime 10 Click Sync Now The new time and any offset from the TimeHub NTP Server card appears This verifies that Port A of the TimeHub NTP Server card and the connection to the card is oper...

Page 194: ...RV EQPT Sa OUTb CTAG PARAMETER BONDMODE where a shelf number 0 to 4 0 Master 1 4 Expansion b NTP card group A D on Master shelf or b NTP card group A H on Expansion shelf If the response is Y skip to step 3 2 Enable the bonding mode if not already active ED EQPT Sa OUTb CTAG BONDMODE ACTSTBY ED EQPT Sa OUTb CTAG NTPPAIR APPLYCFG where a and b are described in step 1 3 Verify that Port A is the act...

Page 195: ...to the NTP Server card is not working a message appears that says SymmTime cannot connect to the server Troubleshoot the connection first then the NTP Server card Click Sync Now a few more times and verify the response The switch may delay the response 8 Remove the cable from the Port A SFP and repeat step 7 to verify that to ensure that Port A is not responding and Port B is still responding 9 Re...

Page 196: ... slot 3B as the Active card ED EQPT S0 OUT3B CTAG NTPSLOT ACT 4 Repeat steps 1 10 of the procedure in Verifying the NTP Server Function on page 191 to verify that the NTP Server card in slot 3B is functional If the NTP Server card or the connection to the NTP Server card is not working a message appears that says SymmTime cannot connect to the server Troubleshoot the connection first then the NTP ...

Page 197: ...tion When the signals have been acquired and the outputs are stable enough to output PRS the TimeHub 5500 enters its normal operation mode During normal operation the following conditions exist These should be observed on both Clock cards Enabled inputs show E LED lit Qualified inputs show Q LED lit The active input reference shows A LED lit One Clock card should have the Active LED lit the other ...

Page 198: ...tinue with Step 3 3 Set switch S1 1 to Off 4 Install the Management card into its slot see Installing the Management Card on page 139 Table 4 5 User Level and Access Security Level Description User Users can edit their password and retrieve information or access any command at the User security level Administration Users are allowed to change configuration and issue User level commands Security Us...

Page 199: ... On 9 Install the Management card and tighten the captive screws 10 Issue the ACT USR command to log in to the TimeHub ACT USR tid aid ctag pid where aid and pid are the user name and password respectively Managing the User List You must be logged in at a Security or Administrator level to add edit or delete names from the user list The list can contain up to 25 names Using TimeScan THC You can ma...

Page 200: ...e insensitive characters 3 Select the security level from the drop down box 4 Type a password using up to ten case sensitive characters You must include at least two non alphabetic characters and at least one special character any printing character other than a letter of the alphabet a number a comma a colon or a semicolon 5 Retype the password in the Confirm Password field 6 Click Accept 7 Click...

Page 201: ... the User Administration dialog box To delete a user from the user list 1 Highlight the user name you wish to edit 2 Click Delete A pop up window requests you to confirm the deletion Click OK 3 Click Close to close the User Administration dialog box Using TL1 Commands To make changes to the user list using TL1 commands you must issue individual commands To add a user to the user list issue the ENT...

Page 202: ...ational shelf IMC related settings such as the IP addresses History Log Command History Log and Port Labels are not changed when you use this procedure Default values are summarized in Factory Default Values on page 274 and are described completely in the TL1 Reference Guide To restore synchronization parameters to their factory defaults 1 Remove the Clock cards from the shelf 2 On one of the Cloc...

Page 203: ...Port label for a specific port to null issue the following TL1 command substituting the appropriate shelf group and port numbers for 1 4 A H and 1 40 respectively INIT CKTID S 1 4 OUT A H 1 40 CTAG To set all Output Group Port labels to null issue the following TL1 command substituting the appropriate shelf and group numbers for 1 4 and A H respectively INIT CKTID S 1 4 OUT A H CTAG ...

Page 204: ...204 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 4 Testing and Configuring the TimeHub Setting the Configuration to Factory Defaults ...

Page 205: ...ntaining the TimeHub 5500 This chapter includes Clearing Output Port Alarms Testing the Cards Troubleshooting the TimeHub 5500 Replacing Cards Replacing Fuses Upgrading the Software Returning the TimeHub for Repair Contacting Symmetricom Global Services User Manual Updates Chapter ...

Page 206: ...ed description in the TL1 Reference Guide False Reporting of Output Port Alarms When you connect an output signal from TimeHub to a single ended device such as an oscilloscope or other type of test equipment it is possible that false port alarms may be reported This can occur when the connection from the TimeHub differential outputs Tip and Ring to the single ended device which has signal and grou...

Page 207: ...d for connecting from differential to single ended is via a transformer as is expected when connection is made to the equipment that will ultimately be timed by the output With this type of connection reporting of false port alarms should not occur Clearing False Port Alarms A false port alarm will normally self clear when the reason for its occurrence is removed For example if a TimeHub ring outp...

Page 208: ...tion causing it is removed the false alarm was likely generated on only one output card in a redundant pair This could occur since each card independently senses port alarms and could be impacted slightly differently by injected noise For example one card has its sense line near but slightly below the alarm threshold hence no alarm and the other card has its sense line near but slightly above the ...

Page 209: ...rence Switching To test reference input signal switching use the following procedure To perform this test two enabled and qualified inputs are required 1 Disconnect the active reference input signal This is indicated by the lit INPUTS DS1 A LED for example Figure 5 3 identifies the DS1 Input 1 Active LED Requirements on both Clock cards The DSI Q and A LEDs for the disconnected reference input sig...

Page 210: ...210 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 5 Maintaining the TimeHub 5500 Testing the Cards Figure 5 3 Active DS1 Input Signal Indication DS1 Input 1 Active ...

Page 211: ...On the remaining Clock card in the shelf the Standby LED turns off and the Active LED lights On the Management card the Shelf Major alarm LED lights 2 Install the Clock card removed in Step 1 and wait for it to enter then exit warmup as indicated by the LED The Freerun LED lights Requirements On the Clock card just installed The Standby LED lights The remaining LEDs are the same as the other Clock...

Page 212: ...he TimeHub 5500 Troubleshooting the TimeHub 5500 Troubleshooting the Clock Card The front panel of the Clock card is shown in Figure 5 4 Use the LEDs on the front panel and the actions in Table 5 1 to diagnose and resolve problems with the Clock card Figure 5 4 Front Panel of the Clock Card ...

Page 213: ...ne required Fuse Off The Clock card fuse is not open None required Red The Clock card fuse is open 1 Replace the fuse as described in Replacing the Fuse in the Clock Card on page 243 2 If the replacement fuse fails replace the card as described in Replacing the Clock Card on page 238 Alarm Off There is no alarm condition None required Red An alarm condition exists If the Fail LED is also lit repla...

Page 214: ...use the performance measurements disqualified the inputs click Clear on the Performance tab of THC or use the INIT REG command to clear the performance measurements for each disqualified input Refer to the TL1 Reference for details on the INIT REG command TRACK MODE Tracking Off The Clock card is not tracking a qualified input Check the state of the other TRACK MODE Warmup Freerun Fast Track Smart...

Page 215: ... which is using recent tracking data from a qualified reference to provide the output Check whether both Clock cards are in Holdover If both cards are in Holdover troubleshoot the input signal source If only one card is in Holdover 1 Ensure that the Clock card still qualifying input signals is the active card 2 If the Clock card entered Holdover because the performance measurements disqualified th...

Page 216: ...ing actively A used for tracking None required Green The associated reference input is being actively A used for tracking In a remote system this light indicates the shelf being configured as a remote shelf In this case the corresponding Q and E lights are off None required Active Off This card is not the synchronization signal source for all output cards If the Standby LED on this card is lit non...

Page 217: ...easured and used in the SNDRIFT assessment Since this measurement is a combination of both the drift of the input and the internal reference oscillator it is not a direct assessment vs the GR 1244 specification described above which is only about the internal reference However if the combined relative drift of input and internal oscillator exceeds these thresholds it could be an indication that th...

Page 218: ...t the stratum 2 clock reports a drift event while the stratum 3E clock does not due to the tighter limits in the stratum 2 clock In this case the stratum 2 clock should not be particularly suspected since the input could be drifting in the 1E 10 to 1E 9 per day range On the other hand if the stratum 3E clock reports SNDRIFT but the stratum 2 clock does not that would be an indication of possible d...

Page 219: ...e the input for excessive drift which can eventually result in disqualification The SNDRIFT provides a potential early diagnostic D Is one Clock card ST2 Rb and the other Clock card ST3 Qz E Is the ST3 Qz Clock card reporting SNDRIFT F The input is likely drifting more than ST2 rate but less than ST3 rate G The reference oscillator in the Clock card reporting SNDRIFT is drifting more than expected...

Page 220: ...Troubleshooting the TimeHub 5500 Troubleshooting the Output Driver Card The front panel of the Output Driver card is shown in Figure 5 6 Use the LEDs on the front panel and the actions in Table 5 2 to diagnose and resolve problems with the Output Driver card Figure 5 6 Front Panel of the Output Driver Card ...

Page 221: ...n the Output Driver Card on page 246 2 If the replacement fuse fails replace the card as described in Replacing the Output Driver Card on page 239 Alarm Off There is no alarm condition None required Red An alarm condition exists If the Fail LED is also lit replace the card as described in Replacing the Output Driver Card on page 239 If not check the Output Driver card LEDs and other card LEDs and ...

Page 222: ...he Alarm the OSTBYCLK Output using STandBY CLocK event is generated See also Clearing Output Port Alarms on page 206 Fail Off No hardware or firmware failure has occurred on the Output Driver card None required Red A hardware or firmware failure has occurred on the Output Driver card The Fail LED could be uniquely lit for the following reasons 1 The card has an internal hardware failure 2 The card...

Page 223: ...Connector card connected to ports 1 through 20 None required Ports 1 20 CC Off There is no Output Connector card connected to ports 1 through 20 no outputs can be generated None required Green There is a CC Output Connector card connected to ports 1 through 20 None required Ports 21 40 DS1 Off There is no Output Connector card connected to ports 21 through 40 no outputs can be generated None requi...

Page 224: ...DS1 DS1 In the above response four output cards are identified The lines starting with S0 OUT5C and S0 OUT6C identify output cards in slots 5 and 6 of the Master shelf The firmware version of the Output cards is shown in bold type on each of these lines The card in slot 5C contains R4209A so it will work in Expansion shelf slot 16H The card in slot 6C contains R4114C it must be upgraded if you pla...

Page 225: ... 5500 Troubleshooting the TimeHub 5500 Troubleshooting the Management Card The front panel of the Management card is shown in Figure 5 7 Use the LEDs on the front panel and the actions in Table 5 3 to diagnose and resolve problems with the Management card Figure 5 7 Front Panel of the Management Card ...

Page 226: ...ils replace the card as described in Replacing the Management Card on page 239 Alarm Off There is no alarm condition None required Red An alarm condition exists If the Fail LED is also lit replace the card as described in Replacing the Management Card on page 239 If not check the Management card LEDs and other card LEDs and or troubleshoot the error message s to determine the cause of the failure ...

Page 227: ...RTRV ALM to determine which major alarm occurred and the recommended action If a minor system alarm is also present it does not appear on the front panel LEDs because only the highest severity alarm of a group system or shelf is illuminated When the major system alarm ends the minor system alarm LED then lights ALARMS System Critical Off There is no critical alarm outside the shelf None required R...

Page 228: ...the major shelf alarm ends the minor shelf alarm LED then lights ALARMS Shelf Critical Off There is no critical alarm within the shelf None required Red A critical alarm condition exists in the shelf Refer to the TL1 Reference Guide see RTRV ALM to determine which critical alarm occurred and the recommended action If a major and or minor shelf alarm is present it does not appear on the front panel...

Page 229: ...al communication port is enabled None required COMM PORTS Local Logon Off A user is not logged on the local port None required Green A user is logged on the local port None required COMM PORTS Local Xmit Off Data is not being transferred on the local port None required Green Data is being transferred on the local port None required COMM PORTS Remote Link Off The network connection is disabled If n...

Page 230: ...leshooting the TimeHub 5500 Troubleshooting the Expansion Controller Card The front panel of the Expansion Controller card is shown in Figure 5 8 Use the LEDs on the front panel and the actions in Table 5 4 to diagnose and resolve problems with the EC card Figure 5 8 Front Panel of the Expansion Controller Card ...

Page 231: ...ff There is no alarm condition None required Red An alarm condition exists If the Fail LED is also lit replace the card as described in Replacing the Expansion Controller Card on page 241 If not check the EC card LEDs and other card LEDs and or troubleshoot the error message s to determine the cause of the failure Refer to the TL1 Reference Guide for details on error messages Fail Off No hardware ...

Page 232: ...on the Master shelf Green EC card is receiving proper timing framing and communication from the master shelf None required Expansion Link 2 Off The link 2 cable is not connected Connect the link 2 cable Red The link 2 cable is attached but there is a problem receiving either clock timing clock framing or communication from the master shelf Check clock timing clock framing and communication on the ...

Page 233: ...shooting the TimeHub 5500 Troubleshooting the 5 MHz Output Driver Card The front panel of the 5 MHz Output Driver card is shown in Figure 5 9 Use the LEDs on the front panel and the actions in to diagnose and resolve problems with the 5 MHz Output Driver card Figure 5 9 Front Panel of the 5 MHz Output Driver Card ...

Page 234: ...se is open 1 Remove the module and replace the 1 amp GMP fuse F1 2 If the replacement fuse fails replace the card Alarm Off There is no alarm condition None Required Red An alarm condition exists If the Fail LED is also lit replace the card If not check the alarm messages to determine the cause of the failure Refer to the TL1 Reference Guide for details on error messages Reasons the Alarm LED coul...

Page 235: ...5500 Troubleshooting the TimeHub 5500 Troubleshooting the NTP Server Card The front panel of the NTP Server card is shown in Figure 5 10 Use the LEDs on the front panel and the actions in Table 5 6 to diagnose and resolve problems with the NTP Server card Figure 5 10 Front Panel of the NTP Server Card ...

Page 236: ...on exists Troubleshoot the error message s to determine the cause of the failure Refer to the TL1 Reference Guide for details on error messages Fail Off No hardware or firmware failure has occurred on the NTP Server card None required Red A hardware or firmware failure has occurred on the NTP Server card Replace the NTP Server card A S Amber NTP Server card is in Standby mode NTP Server card is No...

Page 237: ...e are no alarms on the TimeSource 3x00 If present resolve the alarms Amber TimeSource 3x00 TOD signal is acquiring 1 Wait 1 to 2 minutes until LED turns green If not troubleshoot using Red LED action above Green TimeSource 3x00 TOD signal is present None required SPF A SPF B Off No Ethernet connection 1 Check Ethernet connections at NTP Server card and at far end 2 Check Ethernet cable Green Ether...

Page 238: ...ush the card into place until it is fully seated into the backplane connectors 7 Wait for the Warmup LED to turn off on the replacement card approximately 2 minutes to 20 minutes and the Tracking LED to light 8 Press the Cutoff pushbutton on the Management card several times 9 Verify that any alarm conditions are cleared 10 Tighten the captive screws at the top and bottom of the card Warning Befor...

Page 239: ...ed Management Card may not immediately communicate via Ethernet This could be mistakenly perceived as a Dead On Arrival unit due to communication failure The original IMC card installed in the TimeHub has a user assigned IP address along with a hard wired MAC address This information is saved in the ARP table on the network router When a new IMC card is plugged in the network router starts queryin...

Page 240: ... connected to the Management card 2 Put on a properly grounded ESD wrist strap 3 Using a 2 Phillips head or Pozidrive screwdriver loosen the captive screws on the front panel of the card 4 Remove the card from the shelf 5 Set switch S1 1 on the replacement card to the Off position If you are not using the security feature set switch S1 4 to the On position to disable the SECUALM System Security Di...

Page 241: ...or details 17 If applicable re connect the cable that was connected to the Management card 18 If using a local communication connection verify that the Local LED is lit If using an LAN connection verify that the Link LED is lit 19 Verify that all user configured parameters are correct 20 Tighten the captive screws at the top and bottom of the card Replacing the Expansion Controller Card To replace...

Page 242: ... LED remains on and for the Enabled port LED s to turn on 6 Verify that all alarm conditions are cleared If not verify which alarms are present using the THC 3 2 application and correct the faults For assistance see Contacting Symmetricom Global Services on page 264 7 Tighten the captive screws at the top and bottom of the card to complete the procedure Replacing an Output Connector Module Master ...

Page 243: ...o each port 3 Using a slotted screwdriver loosen the captive screws on the module 4 Grasp the top and bottom edges of the module to pull and remove the failed module from the shelf 5 Insert the replacement module into the shelf ensure that the card aligns properly with its mating backplane connector push the module into place until it is fully seated into the backplane connectors 6 Reconnect each ...

Page 244: ...ller remove the fuse from the fuse holder labeled XF1 6 Replace the fuse with a 3 A GMT fuse Do not force the fuse when inserting it the fuse should easily snap fit into the holder 7 Insert the card into the shelf ensure that the card aligns properly with its mating backplane connector push the card into place until it is fully seated into the backplane connectors 8 Wait for the Warmup LED to turn...

Page 245: ...nel of the card 4 Remove the card from the shelf 5 Using a GMT fuse puller remove the fuse from the fuse holder labeled F1 6 Replace the fuse with a 1 A GMT fuse Do not force the fuse when inserting it the fuse should easily snap fit into the holder 7 Insert the card into the shelf ensure that the card aligns properly with its mating backplane connector push the card into place until it is fully s...

Page 246: ... labeled F1 5 Replace the fuse with a 1 A GMT fuse Do not force the fuse when inserting it the fuse should easily snap fit into the holder 6 Insert the card into the shelf ensure that the card aligns properly with its mating backplane connector push the card into place until it is fully seated into the backplane connectors 7 Wait for the Power LED to light the DS1 and or CC LEDs to light according...

Page 247: ...5 Replace the fuse with a 1 A GMT fuse Do not force the fuse when inserting it the fuse should easily snap fit into the holder 6 Insert the card into the shelf ensure that the card aligns properly with its mating backplane connector push the card into place until it is fully seated into the backplane connectors 7 Wait for the Power LED to light the Shelf Power and Expansion Links LEDs to light and...

Page 248: ... WARP application The application window appears as shown in Figure 5 14 3 Enter the IP address and port number in the appropriate fields 4 Enter a Security level user name and password in the appropriate fields If a Security level user is not entered into the user list refer to Managing the User List on page 199 for more details 5 Click Rtrv Info The current information for the TimeHub appears in...

Page 249: ...0 User s Guide 249 Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Figure 5 14 The TimeHub WARP Window Figure 5 15 The WARP Log Window 8 Click to navigate to the desired source CFG file The selected file appears in the New Version field ...

Page 250: ...07 11 55 08 Input Loss of framing S0 CLK1 2 T1 MJ INPOOF NSA 09 07 11 55 08 Input Loss of framing S0 CLK1 1 T1 NA INDISQ NSA 09 07 11 55 01 Input disqualified S0 CLK1 2 T1 NA INDISQ NSA 09 07 11 55 01 Input disqualified S0 CLK1 3 T1 NA INDISQ NSA 09 07 11 55 01 Input disqualified 12 On the computer s Start menu click Run The Run dialog box appears 13 Type cmd in the Run dialog box then click OK Th...

Page 251: ...s now in the Standby mode 20 Repeat steps 7 through 17 for the IMC 21 Check for any active alarms on the TimeHub If no alarms are present the upgrade procedure is complete Troubleshoot any alarms using the procedures in Troubleshooting the TimeHub 5500 on page 211 22 When you upgrade a Management card 55542 the keywords listed in Table 5 7 are set to factory default values Note You can view the cu...

Page 252: ...indicates that the file system on the Clock 1 or Clock 2 card is corrupt You need to have a computer connected to the serial or Ethernet port on the TimeHub and a copy of the software that you want to install on the TimeHub 1 Open a command window by selecting Start Run or other method depending on the operating system in the computer The Run window appears 2 Type cmd and click OK to open the comm...

Page 253: ... address and press Enter to connect to the TimeHub where ip address is the address of the TimeHub In the example shown in Figure 5 17 the address is 192 168 5 172 The TimeHub requests a user name Figure 5 17 Example FTP Download Process Part 1 5 Type a valid Security level user name and press Enter The TimeHub requests a password 6 Type the password for the user and press Enter The TimeHub respond...

Page 254: ...d firmware version Verify that the files are not corrupted by adding together the number of used dirty and clean blocks Use the following table to determine the action based on the sum If the sum of the blocks does not add up to the appropriate number refer to Repairing a Corrupt File System on page 259 The only files in the directory should be MAIN HXB and MAIN1 HXB Typically there are no other f...

Page 255: ...pe then press Enter to confirm the binary transfer mode is selected See Figure 5 18 for a continuation of the example for Clock 1 Figure 5 18 Example FTP Download Process for Clock 1 Part 2 13 Type put clock main hxb then press Enter to start the file transfer If you did not change to the directory containing the MAIN HXB file in Step 3 this command will fail Use the cd command to ensure that you ...

Page 256: ...ime it took to send the file and the transfer rate Confirming the File Transfer 14 Type dir then press Enter to confirm that the file MAIN HXB is present with a newer date and time and the MAIN1 HXB file is unchanged Figure 5 19 shows the continuation of the example Figure 5 19 Example FTP Download Process Part 3 Warning To avoid corrupting the file system do not power down the shelf or remove car...

Page 257: ...ress the Force Active button on the Clock card you just upgraded to make it the Active clock or use the SW DX EQPT command from a remote location Downloading to the Second Clock Card 18 Download software to the second clock card using steps 7 through 16 Table 5 8 summarizes the steps Downloading to the IMC Card 19 Download software to the IMC card using steps 7 through 16 Table 5 9 summarizes the ...

Page 258: ... should return to normal operation within a minute Note The newly upgraded clock is busy polling each card in the system to build up a system inventory To prevent interrupting this process wait approximately 5 minutes after upgrading the software to perform any other actions on the TimeHub Table 5 10 Backing Up the New Software Type This Comment ftp ip address Log in to the TimeHub dir View the ro...

Page 259: ...memory or 15521 new CPU memory then the file system is not corrupt 5 Type quote format timehub 2001 then press Enter to format the file system The card associated with the selected directory remains fully operational 6 Type quote format timehub 2001 then press Enter to format the file system again 7 Type dir then press Enter to view the directory structure 8 Add the values next to the used dirty a...

Page 260: ...ctor module is connected and configured to a LAN See Making Communication Connections on page 122 for details 2 Connect to the TimeHub using the procedure in Using Terminal Emulation Software on page 150 3 Issue the RTRV NETYPE ALL ctag TL1 command to check the version information and hardware setup of the NTP cards to be upgraded 4 Issue the following TL1 command to start the firmware download pr...

Page 261: ...at step 6 6 Issue the following TL1 command to reboot the NTP Server card ED EQPT tid aid ctag NTPSLOT REBOOT for example ED EQPT S0 OUT4B user1 NTPSLOT REBOOT 7 When the Standby NTP Server card has rebooted issue the RTRV NETYPE ALL command to check that the version information and hardware setup are correct for the Standby NTP Server card 8 Issue the following TL1 command to switch the Standby N...

Page 262: ... ACT 12 Perform the procedure in Verifying the NTP Server Function on page 191 to ensure that the newly upgraded NTP Server card is performing properly Upgrade Status Messages and Troubleshooting lists the possible responses to the RTRV NTP INFO command Table 5 11 Troubleshooting NTP Firmware Download Responses Response Cause Action Failed to access upgrade status System could not access status Re...

Page 263: ...e packaging Retrieving upgrade file The system is retrieving the file from the FTP server No action Failed to retrieve upgrade file 1 FTP SFTP server is not online 2 Incorrect command syntax 3 Management port link error 1 Verify FTP SFTP server is online 2 Verify the command syntax 3 Check the port cabling Upgrade to flash xx complete The upgrade is in process System may remain at 99 for an extend...

Page 264: ...roduct item number serial number and warranty expiration date 3 Provide the return shipping information customer field contact address telephone number and so forth 4 Ship the product to Symmetricom transportation prepaid and insured with the Return Material Authorization RMA number and item numbers or part numbers clearly marked on the outside of the container to the address given with the RMA Re...

Page 265: ...etricom com User Manual Updates From time to time this manual may be updated The updated version of the manual will be available for downloading in electronic form via the Internet After downloading the manual can be viewed on a computer or printed out Manual updates are available by logging in to Telecom Solutions Support at http www symmetricom com support online support Note If you are download...

Page 266: ...266 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 5 Maintaining the TimeHub 5500 User Manual Updates ...

Page 267: ...097 55501 01 Revision M January 2009 TimeHub 5500 User s Guide 267 Chapter 6Specifications This chapter includes Specifications Factory Default Values Chapter ...

Page 268: ...nnector Label Local Connector Location Management card front Rear of shelf Electrical Interface RS 232 Baud Rate 1200 bps 2400 bps 9600 bps default 19 2 kbps Data Bits 8 Parity Bit None Stop Bits 1 Flow Control None LAN Communication Port Connector Type RJ 45 10 Base T Connector Label LAN Connector Location Rear of shelf Remote Communication Port Reserved for future use GPS Input Reserved for futu...

Page 269: ...nput Alarm Connector card rear of shelf Number of Inputs 4 reference inputs and or monitoring 4 additional inputs for monitoring only Clocks 090 55512 02 or 090 55514 02 required Bit Rate 1 544 Mb s Impedance 100 Format DS1 Telcordia GR 499 CORE ANSI T1 101 Framing D4 ESF Line Code B8ZS SSM State Enable Disable Cable Attenuation 7 0 dB maximum LOS Threshold 14 dB to 10 dB terminated relative to no...

Page 270: ...litude 0 5 V p p Composite Clock Inputs Connector Type Wire wrap pins Connector Label CC IN 1 T R S CC IN 2 T R S Connector Location Input Alarm Connector card rear of shelf Number of Inputs 2 Bit Rate 64 kb s Impedance 133 Format Bipolar RTZ DS1 Outputs Connector Type Wire wrap pins Connector Label 1 20 S T R Connector Location Wire wrap panel Number of Outputs Up to 40 protected or non protected...

Page 271: ...nnector Location Wire wrap panel Number of Outputs Up to 40 protected or non protected outputs per card Maximum of 140 per master shelf Additional capacity available using Expansion shelves Bit Rate 64 kb s Impedance 133 balanced Line Code Bipolar RTZ 5 MHz Output Card Output type Analog Waveform 2 1 V RMS 10 Waveshape Sine wave Impedance 75 VSWR 1 5 1 5MHz unbalanced Output frequency 5 MHz locked...

Page 272: ...l Form factor Pluggable SPF only one port available at release Optical 1000BaseX Electrical 100 1000BaseT 1000BaseT available at release NTP Transaction Rate1000 s fully authenticated up to 1500 s unauthenticated uniform distribution Authentication MD5 RFC1321 Protection 1 1 Protection only one active at a time Management port Integrated with TimeHub system management physically isolated from NTP ...

Page 273: ...lock Connector Labels Return 48V A Return 48V B Connector Location Rear panel Voltage 42 VDC to 56 7 VDC each connector Current Master Remote Shelf 180 W Expansion Shelf 100 W Recommended Battery Feed Fuse 5 A Shelf Mechanical Mounting NEBS 19 in rack NEBS 23 in rack Rack Mounting Position Flush Offset 2 in 5 cm or 5 in 12 7 cm Width 16 6 in 42 2 cm Height 10 5 in 26 7 cm Note Master shelf CLEI D0...

Page 274: ...k Mounting Position Flush 5 in 12 7 cm offset Width 16 6 in 42 2 cm Height 5 25 in 13 3 cm wire wrap module type 3 5 in 8 9 cm built in wire wrap pin type Depth 4 6 in 11 7 cm Shelf and Wire wrap Panel Environmental Operating Temperature 0 C to 45 C Operating Humidity 5 to 95 Electromagnetic Compliance FCC Part 15 Sub Part B Class A Certification NEBS Level 3 compliant Factory Default Values This ...

Page 275: ...ist configurations Maximum of 25 users EIA 232 C Port 9600 baud No parity 8 data bits 1 stop bit Y Handshaking disabled 1200 2400 9600 19200 Y Echo On N Echo Off Ethernet IP Address IP Address 0 0 0 1 Gateway Address 0 0 0 1 Network Mask 255 255 248 0 Inactivity Time 100 sec 0 to 10 000 sec RPTALL Firmware version 3 2 Y Firmware prior to 3 2 N Y N Table 6 2 Clock Card Default Settings Setting Fact...

Page 276: ... Care Don t Care DS1 CC TS GTS 5MHZ PRC Frequency N Y 5 MHz N 10 MHz Pull in Range 16 ST2 4600 ST3E 10 to 10 000 ppb Quality Cutoff Read Input SSM enabled 3 1 to 9 Quality Level Read Input SSM disabled 1 PRS 2 Inputs 1 4 1 to 9 Read Input SSM Bits N Y N Sync Mode Auto Auto Manual Force prior to firmware version 4263B Auto SSM firmware version 4263B and later Time Constant ST2 768 192 768 3072 1228...

Page 277: ...nabled Settable for each output port Framing N prior to firmware version 4236B Y firmware version 4236B and higher Y ESF N D4 Output Quality Level 9 1 to 9 Table 6 4 User Changes to Factory Default Settings Setting Factory Default User Changes Management Card Defaults Security Off Unit Name TimeHub User List configurations Maximum of 25 users EIA 232 C Port 9600 baud Echo Y Ethernet IP Address IP ...

Page 278: ...Master Y Measurement Delay 0 sec Output Connector Card type Don t Care PRC Frequency N Pull in Range 16 ST2 Clock 4600 ST3E Clock Quality Cutoff Read Input SSM enabled 3 Quality Level Read Input SSM disabled 1 PRS 2 Inputs 1 4 Read Input SSM Bits N Sync Mode Auto Time Constant ST2 Clock 768 Time Constant ST3E Clock 384 Wait Time to restore Sync source 30 sec Output Driver Module Defaults Enable Di...

Page 279: ... Guide 279 Chapter 6 Specifications Factory Default Values Framing N prior to firmware version 4236B Y firmware version 4236B and higher Output Quality Level 9 Table 6 4 User Changes to Factory Default Settings Continued Setting Factory Default User Changes ...

Page 280: ...280 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter 6 Specifications Factory Default Values ...

Page 281: ... A 1 A separate frame ground lug is provided on the upper corner of the side panel Grounding the Shelf Frame ground connections are made on power terminal blocks TB1 and TB2 on the rear panel of the shelf Figure A 1 illustrates the terminal connections 1 Run a cable from each ground terminal to earth ground Use one 1 5 mm2 16 AWG green insulated wire to connect the ground terminal of TB1 to the fr...

Page 282: ...he 16 mm2 6 AWG rod and solder Strip enough insulation from the 1 5 mm2 16 AWG wire to permit three complete turns around the 16 mm2 6 AWG rod and solder Without Ground Rod Crimp the supplied spade lug to the 1 5 mm2 16 AWG wire and screw the lug to a screw hole on the rack Remove the paint and sand the area around the screw hole to ensure proper conductivity Coat the connection with an electrical...

Page 283: ...inals on the front panel of the wire wrap panel Figure A 2 3 Complete the ground connection using one of the methods described above depending on whether a ground rod is installed in the rack 4 Using a digital voltmeter measure between the ground and chassis and verify that no voltage exists between them Figure A 2 Wire wrap Panel Ground Connection Making Power Connections Connect power leads to t...

Page 284: ...ns to the TimeHub main shelf are correct follow the steps in this section Use a digital multimeter Fluke 77 or equivalent to make the measurements Refer to Figure A 1 and Figure A 3 Use this procedure for Master Remote and Expansion shelves 1 Remove all fuses that supply power to the shelf from the fuse panel and from the front of the shelf 2 Ensure that no Clock Management or Output Driver cards ...

Page 285: ...een the 48V B and Return terminals on the TB2 terminal block The multimeter should indicate 42V dc to 56V dc 10 Install both 3AG 10 A fuses fuse A and fuse B in the front of the shelf The shelf is now powered up Making Ground and Power Connections Expansion Shelf The Expansion shelf has redundant 48VDC power input connections labeled A and B Both are located in the upper right and upper left corne...

Page 286: ...286 TimeHub 5500 User s Guide 097 55501 01 Revision M January 2009 Chapter A Making Ground and Power Connections Expansion Shelf ...

Page 287: ... replacement 5 MHz Output Driver card 242 Clock card 238 EC card 241 Management card 240 Output Driver card 239 cautions defined 19 CC LED 223 checklist installation 94 clearing false port alarms 207 clearing port alarms 206 Clock card default settings 275 freerun mode 35 front panel 212 fuse replacing 243 holdover mode 35 installing 143 kit part number 86 overview 29 redundancy in Expansion shelv...

Page 288: ... overview 28 protocol 148 Expansion Controller card front panel 230 installing 147 kit part number 88 overview 42 67 redundancy 44 replacing 241 troubleshooting 230 expansion link installing 129 testing 147 to Expansion shelf 43 Expansion Link LED 232 Expansion shelf blank panel part number 88 Clock cards 50 Clock cards required 40 communicating with the Master shelf 45 connecting multiple 130 con...

Page 289: ... in Expansion shelf 147 Output Driver cards in Master shelf 146 interference electromagnetic 94 IP address default 275 277 setting via TimeScan THC 151 setting via TL1 command 153 L LAN connection 122 LAN port see Ethernet port laptop computer 90 LEDs A Active 216 Active 216 Alarm 213 221 226 CC 223 Clock cards 52 Comm Port 229 Cutoff 228 DS1 223 E Enabled 215 Expansion Controller card 69 Expansio...

Page 290: ...7 firmware version retrieving 223 front panel 220 installing in Expansion shelf 147 installing in Master shelf 146 kit part number 86 overview 30 redundancy 45 replacing 239 replacing the fuse 246 troubleshooting 220 223 use in expansion shelf 41 outputs CC adjusting 185 189 DS1 adjusting 186 enabling via TimeScan THC 182 enabling via TL1 command 185 provisioning via TimeScan THC 180 183 provision...

Page 291: ...ons 121 Shelf Alarm LED 231 236 Shelf Critical LED 228 Shelf Major LED 228 Shelf Minor LED 228 Shelf Power LED 226 231 shipping address repair 264 shipping products to factory procedure 20 SID setting 157 single Clock card 177 site survey 92 SmartClock LED 215 software TimeScan THC 90 space required in rack 92 spare parts part numbers 89 SSM input enable via TL1 commands 166 enabling SSM via TimeS...

Page 292: ...nspection 95 unused slots covering 113 user deleting 201 202 managing via TimeScan THC 199 managing via TL1 commands 201 user changes to default settings 277 user security levels defined 198 V ventilation precautions considerations 94 visible alarms connecting 124 overview 32 W Warmup LED 214 warnings defined 19 web address 20 wire wrap panel cables 43 connecting 115 installing 96 97 part numbers ...

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