Page 1 TimeHub 5500 User’s Guide Revision M – January 2009 Part Number 097-55501-01...
Page 2 2300 Orchard Parkway San Jose, CA 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: Table Of Contents
Output Driver Cards ..........41 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 4 Rack Mounting the TimeHub 5500........
Page 5 Setting the Date and Time......... 157 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 6 Troubleshooting the TimeHub 5500........
Page 7 Equipment Return Procedure ........264 Contacting Symmetricom Global Services....... . . 264 User Manual Updates .
Page 8 ............287 TimeHub 5500 User’s Guide...
Page 9 Block Diagram for DS1/CC, NTP, and 5 MHz Outputs..... . 27 TimeHub 5500 Expansion Shelf – Front View ......41 Front and Rear of the High-Density Wire-wrap Adapter Panel .
Page 10 Front Panel of the TimeHub 5500 Shelf ....... . 138...
Page 11 Power and Ground Connections on the Master Shelf ..... 284 097-55501-01 Revision M – October 2008 TimeHub 5500 User’s Guide...
Page 12 List of Figures TimeHub 5500 User’s Guide 097-55501-01 Revision M – October 2008...
Page 13 SSM Source Determination for Remote Shelf ......40 Wire-Wrap Panels Available for the TimeHub 5500 ......49 Wire-Wrap Connection Cables.
Page 14 List of Tables TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 15: How To Use 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  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 16: Purpose Of This Guide
Purpose of This Guide Purpose of This Guide The TimeHub 5500 User’s Guide describes the procedures for unpacking, installing, using, maintaining, and troubleshooting the Symmetricom TimeHub 5500. It also includes appendixes that describe alarms and events, the languages that you use to communicate with the TimeHub 5500, default values, and other information.
Page 17: Structure Of This Guide
Contains preventive and corrective maintenance, and TimeHub 5500 troubleshooting procedures for the product. Chapter 6, Specifications Lists the specifications for the TimeHub 5500. Appendix A, Maintenance of Provides ground and power maintenance information for prior master and expansion shelves. Prior Master and Expansion Shelves 097-55501-01 Revision M –...
Page 18: Conventions Used In This Guide
When text appears ... it means: this way... The title of a document. TimeHub 5500 User’s Guide An operating mode, alarm state, status, or chassis label. CRITICAL IOC1 Select File, Open... Click the Open option on the File menu.
Page 19: Warnings, Cautions, Recommendations, And Notes
Note: All notes use this symbol. Notes contain installation, operation, or maintenance procedures, practices, conditions, or statements, that alert you to important information, which may make your task easier or increase your understanding. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 20: Related Documents And Information
Where to Find Answers to Product and Document Questions For additional information about the products described in this guide, please contact your Symmetricom representative or your local sales office. You can also contact us on the web at www.symmetricom.com. What’s New In This Guide...
Page 21: Chapter 1 Description
Chapter 1 Description Chapter 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  097-55501-01 Revision M – January 2009...
Page 22: Overview
If a reference input is lost, the TimeHub 5500 provides SmartClock holdover that exceeds Stratum 2 accuracy. In addition to DS1 and CC output signals, the TimeHub 5500 can also provide 5 MHz outputs and carrier-class Network Timing Protocol (NTP) outputs.
Page 23: Physical Description
Physical Description Physical Description The TimeHub 5500 consists of a shelf, wire-wrap panel(s), plug-in cards, connector modules, cables, hardware, and software. As an option, you can 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.
Page 24: Functional Overview
The TimeHub 5500 then filters and distributes precise timing signals to the office equipment. The TimeHub 5500 can monitor up to five additional inputs on a second, optional Clock card, but these inputs cannot be selected as the active reference that drives the outputs.
Page 25: General Block Diagram Of The Timehub 5500 System
Functional Overview Figure 1-3. General Block Diagram of the TimeHub 5500 System The Output Driver cards in the Main shelf and any Expansion shelves receive three 1.544 MHz sync signals from the backplane: one from each Clock card and the passthrough clock from the Management card.
Page 26: Ds1 And Cc Outputs
DS1 and CC Outputs Figure 1-4 shows a block diagram of a TimeHub 5500 Main shelf with redundant Clock cards and 140 protected outputs. The 1.544 MHz sync signals from each Clock card and the Management card are connected to Output Driver cards.
Page 27: Ntp And 5 Mhz Outputs
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...
Page 28: Communication Ports
Chapter 1 Description Functional Overview Communication Ports The LAN connection allows you to connect the TimeHub 5500 to an Ethernet network for monitoring and provisioning. You configure network parameters using TL1 commands. The TimeHub 5500 can support up to 10 simultaneous network sessions.
Page 29: Clock Cards
Cards, on page 50. Management Card The Management card manages alarms to and from the TimeHub 5500, and provides local and Ethernet LAN communication interfaces. The TimeHub 5500 can operate without a Management card installed, but you will lose any communications abilities, alarms, and the Passthrough feature.
Page 30: Output Driver Cards
Modules, on page 63, for more information on Output Connector modules. Connection Panels Timing output connections between the TimeHub 5500 and network elements are made at the wire-wrap connection panel. Each high-density wire-wrap connection panel can accommodate up to 160 outputs.
Page 31: Ntp Server Cards
There are two types of alarms associated with the TimeHub 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.
Page 32: Alarm Connections
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.
Page 33: Input Ssms
DS1 input or a 5/10 MHz input), you can assign an SSM value to the input. The TimeHub 5500 can extract and report the encoded SSM value on any of the timing inputs using the TL1 keyword CURRSSM. This keyword allows you to retrieve the SSM value currently associated with a selected input.
Page 34: Output Ssms
SYNCMDE discussion above). It isn't necessary for SYNCMDE to be set to “SSM” for outputs to encode SSM information. When the TimeHub 5500 is using an internal oscillator as the timing reference source, the output SSM quality level is the quality level associated with the performance level for that internal oscillator.
Page 35: Passthrough Mode
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 capability is called Passthrough and resides on the TimeHub 5500 Management card.
Page 36: Passthrough Considerations
A, then the passthrough capability is as follows: Passthrough functions only if the shelf is configured as a master system.  Passthrough will not function if the shelf is configured as a remote system. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 37 It is intended to provide a mechanism to “keep alive” the outputs in a situation when both Clock cards are inadvertently removed. The timing performance when in Passthrough mode cannot be assured. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 38: Master/Remote Shelf
Master/Remote Shelf Master/Remote Shelf The TimeHub 5500 can be configured for use as a Master shelf or as a Remote shelf. The essential difference between these configurations is that a Master shelf accepts PRS (5 or 10 MHz) and DS1 inputs as timing references while a Remote shelf accepts Composite Clock (CC) inputs as the timing reference(s).
Page 39: Ssms In A Remote Shelf
Figure 3-18). This module supports both Master and Remote operation. For Remote operation, the available timing inputs are labeled CC IN 1 and CC IN 2. Typically a TimeHub 5500 or DCD master shelf provides these signals. DS1 SSM Inputs Composite Clock input signals do not provide SSM information that can be included on Remote output signals.
Page 40: Expansion Shelf
Expansion Shelf For situations requiring more outputs than can be provided by a Master shelf, the TimeHub 5500 supports one to four Expansion shelves. Each Expansion shelf provides up to 320 protected outputs; using four Expansion shelves, a TimeHub 5500 system can provide a total of 1420 outputs.
Page 41: Output Driver Cards
Chapter 1 Description Expansion Shelf Figure 1-6. TimeHub 5500 Expansion Shelf – Front View The Main shelf and the Expansion shelf are connected by two redundant expansion cables. These cables provide the clock signals (Clock 1, Clock 2, and the passthrough clock) to the Expansion shelf.
Page 42: Expansion Controller Card
A firmware upgrade is available to allow such DS1/CC Driver cards to become usable in slot 16H. Contact Symmetricom Global Services (SGS) for details. Output Driver cards with firmware revision 4209A and higher function properly in every slot in the Expansion shelf.
Page 43: Rear Panel Of The Expansion Shelf
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 (090-55595-01).
Page 44: Output Driver Cards And Output Connector Modules
EC card is removed, the remaining EC card provides all of the necessary signaling between the output cards in the Expansion shelf and the clocks in the Master shelf. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 45: Communicating With The Expansion Shelf
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.
Page 46 Chapter 1 Description TimeScan THC Software TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 47: Chapter 2 Engineering Ordering Information
Chapter 2 Engineering Ordering Information Chapter This chapter includes: Overview  Wire-wrap Panels  Card Overview  Ordering and Parts List  User-Supplied Tools and Materials  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 48: Overview
Chapter 2 Engineering Ordering Information Overview Overview This chapter describes the cards and accessories available for the TimeHub 5500. If any difficulties are encountered during the installation process, contact Symmetricom Global Services. Refer to Contacting Symmetricom Global Services, on page 264 for telephone numbers. Global Services includes Product Technical Support for technical information, and Customer Service for information about an order, RMAs, and other information.
Page 49: Accessories
060-55591-10 20-foot (710 cm) interconnect cable 060-55591-20 Symmetricom also offers cable management kits made of ABS plastic to ensure a neat installation. These kits are available in 1 RU and 2 RU heights to meet a variety of installation needs.Table 2-3 lists the cable management kits available.
Page 50: Card Overview
Expansion chassis Card Overview This section describes the cards available for the TimeHub 5500. Clock Cards The function of the Clock cards in the TimeHub 5500 is described in Clock Cards, on page 29. Standard Clock cards: These cards are equipped with five inputs (four DS1 and ...
Page 51: Front Panel Of The St2-Rb Clock Card
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 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 52: Clock Card Front Panel Indicators
Off = The system is not in Holdover state  Inputs E Green On = The associated reference input is enabled (E) for  tracking Off = The associated reference input is not enabled (E)  for tracking TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 53 Off = This card is not generating an output that is  phase-locked to the output of the other (active) Clock card Force Active – Pressing this button forces the Clock card to be the active (pushbutton) card 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 54: Management Card
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 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 55: Management Card Front Panel Indicators
Off = The local communication port is disabled  Comm Ports Green On = A user is logged on the local port  Local Logon Off = A user is not logged on the local port  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 56: Ds1/Cc Driver Cards
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. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 57: Front Panel Of The Ds1/Cc Driver Card
Chapter 2 Engineering Ordering Information Card Overview Figure 2-4. Front Panel of the DS1/CC Driver Card 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 58: Mhz Output Driver Card
(from CLKA, CLKB, and the passthrough clock from the IMC). The phased-lock loops and dividers in the FPGAs synthesize the 5 MHz outputs using the 8 kHz intermediate frequency. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 59: Block Diagram Of The Timehub 5 Mhz Output Driver Card
Block Diagram of the TimeHub 5 MHz Output Driver Card Status LED Indicators The 5 MHz Output Driver card is equipped with eight status LEDs as shown in Figure 2-13. They are described in Table 2-8. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 60: Front Panel Of The 5 Mhz Output Driver Card
Chapter 2 Engineering Ordering Information Card Overview Figure 2-6. Front Panel of the 5 MHz Output Driver card TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 61: Input/Alarm Connector Module
The Input/Alarm Connector module (090-55561-01) mounts on the rightmost position on the rear panel of a Master/Remote shelf. The module is shown in Figure 2-7. Expansion shelves do not use an Input/Alarm Connector module. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 62: Front Panel Of The Input/Alarm Connector Module
Chapter 2 Engineering Ordering Information Card Overview Figure 2-7. Front Panel of the Input/Alarm Connector Module TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 63: Output Connector Modules
Card Overview Output Connector Modules The TimeHub 5500 can provide Composite Clock (CC), or DS1 output signals when you use the DS1/CC Driver card in the corresponding group. The Output Connector module determines the type of signal. You can install a combination of Output Connector module types to meet the needs at the site.
Page 64: Output Connector Modules For The Master/Remote Shelf: Ds1 (Left) And Cc (Right)
Chapter 2 Engineering Ordering Information Card Overview Figure 2-8. Output Connector Modules for the Master/Remote Shelf: DS1 (left) and CC (right) TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 65: Mhz Output Connector Modules
The 5 MHz Output Connector module provides an interface for all external signal connections necessary for 5 MHz operations (Figure 2-10). Two 5 MHz Output Connector modules are available: one for the Master shelf and one for use in an Expansion shelf. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 66: Timehub 5 Mhz Connector Modules
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. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 67: Expansion Controller Card
 Expansion shelf power monitoring and alarm reporting  Redundancy management  Signal integrity monitoring  Front Panel Indicators Figure 2-11 illustrates the front panel of the Expansion Controller card. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 68: Front Panel Of The Expansion Controller Card
Chapter 2 Engineering Ordering Information Card Overview Figure 2-11. Front Panel of the Expansion Controller Card TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 69: Expansion Controller Card Front Panel Indicators
Clock card so 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: 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 70: Ntp Server Card
Figure 2-12 is a block diagram of the TimeHub shelf with a pair of NTP Server cards installed. Figure 2-12. Block Diagram of NTP Server Cards in the TimeHub Shelf TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 71: Front Panel Of The 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 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 72: Functional Overview
NTP Server cards. One output group can have a single NTP Server card or a redundant pair of cards. Functional Block Diagram A simplified block diagram of the NTP implementation in the TimeHub is shown in Figure 2-14. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 73: Block Diagram Of The Timehub Ntp System
One TOD (time code and 1PPS signals) output connector for cascading the TOD  signals to multiple NTP cards in a TimeHub system. This connector is on the NTP Connector Card. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 74: Ntp Card Clock Quality And Holdover
TOD signal from TimeSource, via the connector card and the backplane  One of the three 1.544 MHz clock signals is selected and used as a reference to generate the 125 MHz NTP system clock used throughout the card. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 75: Ntp Server Or Client
NTP card and whether a broadcast/multicast address is on the same subnet as one of the two NTP ports: When the two ports are bonded: Multicast will use the active port  Broadcast will use the active port  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 76: Authentication
Most unauthenticated NTP packets are 48 bytes long, and most authenticated NTP packets are 68 bytes long. These are lengths before the packet is encapsulated into lower protocol layers. Figure 2-15 illustrates a sample NTPv4 packet. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 77: Sample Ntpv4 Packet
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): 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 78: Redundancy
 Case 2: Single NTP card with Port Bonding As shown in Figure 2-17, the two NTP ports share the same IP address. This provides redundancy at the port level. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 79: Single Ntp Card With Port Bonding
192.168.4.22 192 .168.4.22 192.168.4.22 192 .168.4.22 Figure 2-18. Two NTP Server Cards, No Port Bonding The provisioning for this setup is summarized below: Keyword BONDMODE is set to NOBOND.  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 80: Two Ntp Server Cards With Port Bonding
The IP address of Port A automatically becomes the IP address for all four ports  in this situation, and Port A on NTP 1 is the default active port. TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 81: Ntp Traffic Load Limit
3. The counter threshold is 3000 within a one-second interval. When the count reaches 3000, no more packets are accepted until the counter is reset for the next 1 second interval. This counter is reset once a second. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 82: Leds On The Ntp Server Card Front Panel
Green / Amber / Off = ST0 is disabled Green = ST0 is locked Amber = Holdover Red = ST0 error and never locked, or ST0 error and exceeded maximum Holdover period TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 83: Ntp Output Connector Modules
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. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 84: Timehub Ntp Output Connector Modules
Chapter 2 Engineering Ordering Information NTP Server Card Figure 2-20. TimeHub NTP Output Connector Modules TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 85: Status Led Indicators On The Timehub Ntp Output Connector Modules
Connectors TOD Timesource – This RJ-45 connector allows you to connect a Time-of-Day  (TOD) signal from a Symmetricom TimeSource 3x00. TOD Cascade – The Cascade connector allows you to daisy-chain the  Time-of-Day input from one NTP Output Connector module to another NTP Output Connector module in the same chassis or another chassis.
Page 86: Ordering And Parts List
8 per Master/ Remote DS1 Output 990-55591-01 1 (minimum) DS1 Output module  module kit 2 (recommended) (090-55591-01) up to 7 DS1 and Round RJ-21 cable  CC total per (060-55591-02) Master/Remote TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 87 1 per Output Group modules: Master A, B, and/or C or Remote shelf Groups A – C NTP Output 090-55594-03 1 for Output Group Connector modules: Master or Remote shelf Group D 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 88: Expansion Shelf Basic Components
1 per NTP Server Connector card modules: Expansion shelf Blank panels for 093-55598-02 16 minus number of Optional to fill out output card  Output card installed Output space spaces cards TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 89: User-Supplied Tools And Materials
Includes kit to mount on 23 in. rack. User-Supplied Tools and Materials User-supplied tools and materials are listed below. Phillips-head screwdriver for installing the TimeHub 5500 shelf in a rack  Phillips-head or Pozidrive screwdriver for tightening or loosening captive screws ...
Page 90 Laptop computer with communications software (e.g., Windows Hyperterminal,  ProComm Plus, CrossTalk) or TimeScan THC software for setting system parameters TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 91: Chapter 3 Installing The Timehub
Chapter 3 Installing the TimeHub 5500 Chapter 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 ...
Page 92: Overview
The TimeHub 5500 shelf, when installed, occupies 10.5 in (26.7 cm, 6 RU) of vertical rack space and has a depth of 11.5 in (29.2 cm). The Wirewrap High- Density Adapter Panel delivered with the TimeHub 5500 occupies 3.5 in (8.9 cm,...
Page 93: Installation Tools And Equipment
TimeHub 5500 installation. The unit is not equipped with a power on/off switch. Installation Tools and Equipment You will need the following tools and equipment to install the TimeHub 5500: Standard tool kit  Cable sewing cord or acceptable ties or clamps ...
Page 94: Electromagnetic Interference (Emi) Considerations
All cables connected to the TimeHub 5500 should be shielded with “drain” wires connected to the rack ground. Follow local procedures for shield grounding. The screws on all cable shells must be securely fastened to their corresponding connectors on the rear of the unit.
Page 95: Unpacking The Timehub 5500
Installing Output Driver Cards, on page 147 Unpacking the TimeHub 5500 The TimeHub 5500 is packaged to protect it from normal shock, vibration and handling damage. Care should be taken during unpacking and installation to avoid damaging the unprotected unit.
Page 96: Rack Mounting The Timehub 5500
Chapter 3 Installing the TimeHub 5500 Rack Mounting the TimeHub 5500 Rack Mounting the TimeHub 5500 The procedure for rack mounting a Master, Remote, or an Expansion shelf is identical. Note: If you are using an existing connection panel, follow the procedures in an approved Method of Procedure (MOP) for cutting over an existing shelf.
Page 97: Timehub 5500 User's Guide
Chapter 3 Installing the TimeHub 5500 Rack Mounting the TimeHub 5500 If you are installing the wire-wrap panel delivered with the Master shelf (shown in Figure 3-2), mount the panel in the rack after you install the shelf. Mount the panel above or below the shelf, leaving enough space (at least 1 RU) for cable management above and below the wire-wrap panel.
Page 98: Assembling The Rack Extenders For A 23-Inch Shelf
Chapter 3 Installing the TimeHub 5500 Rack Mounting the TimeHub 5500 Figure 3-3. Assembling the Rack Extenders for 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.
Page 99: Sample Rack Installation Of A Master Shelf
Chapter 3 Installing the TimeHub 5500 Rack Mounting the TimeHub 5500 Figure 3-4. Sample Rack Installation of a Master Shelf 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide...
Page 100: Sample Rack Installation Of A Master And Expansion Shelf
Chapter 3 Installing the TimeHub 5500 Rack Mounting the TimeHub 5500 Figure 3-5. Sample Rack Installation of a Master and Expansion Shelf 100 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 101: Configuring The Shelf As A Master Or Remote
Configuring the Shelf as a Master or Remote Configuring the Shelf as a Master or Remote You can configure the TimeHub 5500 shelf for either Master or Remote operation by setting a switch on the backplane. The shelf and all plug-in cards are compatible with either mode of operation.
Page 102: Making Ground And Power Connections
Remote LED lights following Warmup Making Ground and Power Connections The TimeHub 5500 operates on voltages between –40 and 57.6 VDC. The shelf has redundant power input connections labeled A and B, and are located in the upper-right and upper-left corners of the rear panel. A separate frame ground lug is provided on the upper corner of the side panel.
Page 103: Grounding The Shelf
Chapter 3 Installing the TimeHub 5500 Making Ground and Power Connections Grounding the Shelf Frame ground connections are made on the grounding stud located on the rear of the side panel.This stud is marked with the universal ground symbol, as shown in Figure 3-7.
Page 104: Connectors On The Rear Panel Of The Master Shelf
Chapter 3 Installing the TimeHub 5500 Making Ground and Power Connections Battery A Battery B External Alarms Shelf Alarms Figure 3-8. Connectors on the Rear Panel of the Master Shelf Grounding connections must be made with UL listed grounding terminals.
Page 105: Grounding The Wire-Wrap Panel
Chapter 3 Installing the TimeHub 5500 Making Ground and Power Connections Grounding the Wire-wrap Panel The Wire-wrap panel delivered with the TimeHub 5500 shelf has two ground terminals on the front panel. Connect each of these two terminals to ground as described in this section.
Page 106: Testing Power Connections
The branch circuit over-current protection device shall be a maximum of 15 Amperes. Testing 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...
Page 107: Installing The Ntp Server Card
Chapter 3 Installing the TimeHub 5500 Making Ground and Power Connections 4. At the shelf end of the battery leads, use the multimeter to measure the voltage between the following test points: Test Point Test Point Result Battery A lead...
Page 108: Maximum Load Limits
Chapter 3 Installing the TimeHub 5500 Making Ground and Power Connections 4. Tighten the captive screws located at the top and bottom of the card front panel. 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.
Page 109: Installing Modules Into The Rear Panel
Chapter 3 Installing the TimeHub 5500 Installing Modules into the Rear Panel Table 3-4. Maximum Loading Configuration for the TimeHub Expansion Shelf (Continued) Slot Card DS1/CC Output Card 090-55581-01 DS1/CC Output Card 090-55581-01 NTP Server Card 090-55582-01 NTP Server Card 090-55582-01...
Page 110: Installing The Input/Alarm Connector Module
Chapter 3 Installing the TimeHub 5500 Installing Modules into the Rear Panel Output Connector Modules Input/Alarm Connector Module Figure 3-11. Location of Output Connector Modules on the Rear Panel of the Master/Remote Shelf Installing the Input/Alarm Connector Module The Input/Alarm Connector module (part number 090-55561-01) mounts on the...
Page 111 Chapter 3 Installing the TimeHub 5500 Installing Modules into the Rear Panel Master and Remote Shelves For DS1 outputs, use DS1 Output Connector modules (part number 090-55591-01), which are part of the DS1 Output Connector Module Kit (990-55591-01). For CC outputs, use CC Output Connector modules (part number 090-55593-01), which are part of the CC Output Connector Module Kit (990-55593-01).
Page 112: Installing The Ntp Output Connector Module
Figure 3-12. Location of Output Connector Modules on the Rear Panel of the Expansion Shelf Installing the NTP Output Connector Module Symmetricom provides two NTP Output Connector modules for use in the Master shelf, and one NTP Connector module for use in the Expansion shelf.
Page 113: Installing Blank Panels
Chapter 3 Installing the TimeHub 5500 Installing Modules into the Rear Panel Caution: To avoid possible damage and intermittent failures, ensure that the connector is completely seated and that you have securely tightened the captive screws. Expansion Shelf You must install the NTP Output Connector module (part number 090-55594-02) in the output group that corresponds with the front panel slot in which the NTP Server card is installed.
Page 114: Making Signal Connections
Chapter 3 Installing the TimeHub 5500 Making Signal Connections The blank panel p/n 093-55599-03 is a double-height blank panel. It covers a  complete output group, including both Output Connector module spaces. Install the desired Output Connector module blank panels in the back of the Expansion shelf.
Page 115: Making Shelf-To-Panel Connections
Chapter 3 Installing the TimeHub 5500 Making Signal Connections Reserved for Reserved for future use future use Battery A and Local Battery B and Frame Ground Comm Port Expansion Ports LAN Port Frame Ground Figure 3-13. Rear Panel Connectors on the Main Shelf Making Shelf–to–Panel Connections...
Page 116: Connecting Outputs To The High-Density Wire-Wrap Panel
Making Signal Connections To maximize the number of timing leads that you can terminate on the High-Density Wire-wrap Panel, Symmetricom 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.
Page 117: Connecting Outputs To Existing Wire-Wrap Panels
Figure 3-16 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: Connecting A-D Outputs Of The Expansion Shelf To The High-Density Wire-Wrap
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 118 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 119: Connecting Timing Inputs
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, and the shield (if connected at the TimeHub 5500) to the pins labeled S.
Page 120: Input/Alarm Connector Module Connections
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.
Page 121: Making Ntp Connections
Server card. Install the appropriate SFP interface module into the slot on the NTP Server card, then attach the network cable. Table 3-5 lists the available SFP interface modules. Table 3-5. SFP Modules for the TimeHub 5500 NTP Server Card Description Part Number Ethernet SFP Module – optical, single mode 121-20621-00-0 Ethernet SFP Module –...
Page 122: Making Communication Connections
Figure 3-13 for the connector location; Table 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.
Page 123: Connecting Alarms
Chapter 3 Installing the TimeHub 5500 Making Signal Connections Connecting a Local Serial Cable The Local connector on the rear panel of the TimeHub 5500 provides a 9-pin RS-232 link for TL1 command access. See Figure 3-13 for the location of the...
Page 124 Chapter 3 Installing the TimeHub 5500 Making Signal Connections the alarm on the AUD pins and the cutoff LED will light (indicating that audible alarms have been cut off). Any alarm asserted on the VIS wire-wrap pins is unaffected by the cutoff pushbutton. The alarm LED and cutoff LED will remain lit until the condition causing the alarm is no longer present.
Page 125: Gps Input
ALM INPUTS wire-wrap pins 1 through 10 on the Input/Alarm Connector module. Figure 3-18 for the location of the pins. The external alarm inputs allow the TimeHub 5500 to accept alarms from external equipment. When an alarm is accepted: an alarm LED lights in the “system” row on the Management card ...
Page 126: Installing Expansion Shelves
Installing Expansion Shelves Installing Expansion Shelves The TimeHub 5500 has two interface connectors to connect an Expansion shelf. You can connect up to four Expansion shelves in a daisy-chain fashion using two Expansion Interface cables (060-55591-02) per shelf. You make the connection using the Expansion Link 1 and 2 connectors on the rear panel of the Main shelf.
Page 127: Address Switch Sw1 On The Expansion Shelf
Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves The address of the Expansion shelf connected to the Master or Remote shelf is always 1. The next Expansion shelf has an address of 2, and so on. Caution: To avoid a loss of timing signals, perform the following procedure only on a shelf with no active outputs.
Page 128: Installing Output Connector Modules
Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves Installing Output Connector Modules You can install up to 16 Output Connector panels in any of the locations on the rear panel of an Expansion shelf, as shown in Figure 3-22. The Output Connector module determines the type of output signal generated.
Page 129: Making Expansion Shelf Connections
Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves Making Expansion Shelf Connections Two cables provide timing and data to the Expansion shelf from either the Master shelf or to an upstream Expansion shelf. Two additional cables provide timing and data to a downstream Expansion shelf.
Page 130 Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves 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 are gender-coded to ensure correct installation. 2. Connect the other end of this cable to the Expansion Link 1 IN connector on the rear panel of the Expansion shelf.
Page 131: Connecting Multiple Expansion Shelves
Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves Address Switch SW1 set to “1” Address Switch SW1 set to “2” Figure 3-24. Connecting Multiple Expansion Shelves 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 131...
Page 132 Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves 8. Connect the other end of this cable to the Expansion Link 2 IN connector on the second Expansion shelf. 9. Repeat steps 5 through 8 for each additional Expansion shelf in the system.
Page 133 Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves "S0-OUT5C:,090-55581-01-A,,R4236A,00M15358,D0TPJNMAAA,105045,CC," > SYMMBITS 04-10-19 11:14:33 SV36 COMPLD "S1-CLK1:,090-55545-01-B,,D,,D0C1ZZ0AAA,299465" "S1-CLK2:,090-55545-01-B,,D,,D0C1ZZ0AAA,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.
Page 134 Chapter 3 Installing the TimeHub 5500 Installing Expansion Shelves 4. Enter the command and verify that the expansion shelf’s RTRV-NETYPE-ALL current hardware configuration is listed in the response. Note: The active clock may take from three to ten minutes to do a complete inventory depending on the number of expansion shelves present.
Page 135: Removing Expansion Shelves
Chapter 3 Installing the TimeHub 5500 Removing Expansion Shelves Removing Expansion Shelves To remove an Expansion shelf from a TimeHub system: 1. Disconnect the two Expansion Link cables from the rear of the Expansion shelf. If this was the only Expansion shelf in the system, continue with step 3.
Page 136 Chapter 3 Installing the TimeHub 5500 Removing Expansion Shelves 136 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 137: Chapter 4 Testing And Configuring The Timehub
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  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 137...
Page 138: Overview
Overview Overview This chapter describes how to install cards into the front panel and configure the TimeHub 5500. Perform these tasks after you install the shelf and make power, input, alarm, and communications connections described in Chapter 3, Installing the TimeHub 5500.
Page 139: Installing The Management Card
POWER –48V A Fail and the ALARMS Shelf Critical LED is present. Note: After you install the clock modules, the ALARMS Shelf Major LEDs light. The TimeHub 5500 should be configured with at least two clock modules, if not, a critical alarm will be present.
Page 140: Location Of Switch S1 On The Management Card
4 is in the Off position. Force disable local port (local port can be disabled by TL1 command) Force enable local port (local port is enabled even if previously – disabled by TL1 command) 140 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 141 S1 is set to Off. You must power down and power up the Management card for this switch setting to take effect. 5–8 Reserved for future use 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 141...
Page 142: Front Panel Of The Management Card
Chapter 4 Testing and Configuring the TimeHub Installing Cards into the Front Panel Figure 4-3. Front Panel of the Management Card 142 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 143: Installing The Clock Cards
TimeHub is at its maximum. To ensure that an input is qualified on a card, refer to the procedure in Provisioning Inputs on a Master Shelf, on page 160. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 143...
Page 144: Front Panel Of The Clock Card
Chapter 4 Testing and Configuring the TimeHub Installing Cards into the Front Panel Figure 4-4. Front Panel of the Clock Card 144 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 145: Confirming The Master Or Remote Shelf Setting
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. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 145...
Page 146: Installing Output Driver Cards
Note that for a fully loaded shelf, the initialization process could take several minutes in total. If only a single output card is being inserted, the time will be much less than that. 146 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 147: Installing Cards Into The Expansion Shelf
To install Output Driver cards in an Expansion shelf, follow the procedure in this section. See Figure 2-4 for the location of the LEDs on the Output Driver card. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 147...
Page 148: Establishing A Connection To The Timehub
If only a single output card is being inserted, the time will be much less than that. Establishing a Connection to the TimeHub You can connect to the TimeHub 5500 using either a serial connection or an Ethernet connection. To connect via a serial port, see Communicating by Serial Port, on page 149.
Page 149: Communicating By Serial Port
Using TimeScan THC Use the following procedure to log in to the TimeHub 5500 for the first time using TimeScan THC via a serial connection. 1. Connect one end of the cable to the serial port on the computer or terminal and the other to the Local connector on the rear panel or the Local connector on the Management card.
Page 150: The Timehub Timescan Thc Window In Serial Mode
4. If security is enabled on the TimeHub (see Enabling Security, on page 197), issue the ACT-USER command to log in: ACT-USR:[tid]:<aid>:<ctag>::<pid>; where <aid> and <pid> are your user name and password, respectively. 150 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 151: Communicating By Ethernet
Set the parameters appropriately for the network to which the TimeHub is connected. The most important parameter is IPNE, which is the IP address of the TimeHub shelf. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 151...
Page 152: The Tcp/Ip Dialog Box
Figure 4-8 appears. thub0055 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. 152 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 153 TimeHub 5500 TL1 Reference Manual. 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;...
Page 154 10. If AOMERGE is set to Y, skip to the next step. If AOMERGE is set to N, use the Edit Equipment command to specify the port number for automatic output messages. 154 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 155 Comm Port 1. Click Cancel. The TimeHub TimeScan THC window appears, as shown in Figure 4-6. 3. Click TCP/IP in the Communication tab. Enter the IP address and port number in the appropriate boxes. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 155...
Page 156: Provisioning Master Shelf Parameters
If you do not have TimeScan THC and use a terminal emulation program instead, all of the above actions can still be performed by typing commands or setting up scripts/special function keys to do so. 156 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 157: Setting The Date And Time
Note: If you include a target identifier <tid> in a command, it is checked against the system identifier <sid> of the TimeHub 5500. The command is executed only if the <tid> and <sid> match; if they do not match, the command is ignored.
Page 158: Setting The Target Id
Note: If you include a target identifier <tid> in a command, it is checked against the system identifier <sid> of the TimeHub 5500. The command is executed only if the <tid> and <sid> match; if they do not match, the command is ignored.
Page 159: Verifying The Hardware Setup
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 SV36 RTRV "TSG:Symmetricom,5500,TSG" "S0-IMC:,090-55542-01-A,,R4209C,J86746,D0TPN0NAAA,106063" "S0-CLK1:,090-55514-02-A,,R4142B,J63939,D0TPKRJAAA,297083" "S0-CLK2:,090-55512-02-A,,R4312A,K60716,D0TPVRKAAA,299460" "S0-OUT1A:,090-55581-01-A,,R4236A,00M15316,D0TPJNMAAA,105045,CC," "S0-OUT2A:,090-55581-01-A,,R4236A,00M15320,D0TPJNMAAA,105045,CC," "S0-OUT3B:,090-55581-01-A,,R4236A,00M15317,D0TPJNMAAA,105045,CC," "S0-OUT4B:,090-55581-01-A,,R4236A,00M15360,D0TPJNMAAA,105045,CC," "S0-OUT5C:,090-55581-01-A,,R4236A,00M15358,D0TPJNMAAA,105045,CC," > SYMMBITS 04-10-19 11:14:33 SV36 COMPLD 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 159...
Page 160: Provisioning Inputs On A Master Shelf
Use this procedure to provision the inputs for a Master shelf. If you are provisioning inputs for a Remote shelf, see Provisioning Inputs on a Remote Shelf, on page 173. 160 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 161: The Timescan Thc Input Screen
(via RTRV-COND) and logged without causing an alarm if that input has a problem. Monitoring is enabled by default on inputs 0 – 4. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 161...
Page 162 9. Enable SSM reading for ESF-framed DS1 inputs. Inputs that are incapable of SSM decoding (such as PRS or D4-framed DS1) use an assumed SSM value (see keyword QLEVEL in the TimeHub 5500 TL1 Reference Manual). The ESF-framed DS1 inputs will also use an assumed value unless reading of SSM is enabled.
Page 163 5. If the connected DS1 signal is carrying valid SSM, the “Q” LED will light within a few seconds. This LED, when lit, indicates that the input is qualified as providing decodable SSM information. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 163...
Page 164 5 or 10 MHz input. The default is 10 MHz. If necessary, change the setting. To set the PRS Frequency to 5 MHz, issue the following command: ED-SYNC::CLK-0:SV347:::PRC5MHZ=Y; Set this value to N when the expected PRS Frequency is 10 MHz. 164 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 165 = 0 – 9 to set the priority value To set input 2 priority to 3, issue the command: ED-SYNC::CLK-2:SV380:::PRIORITY=3; To retrieve the priority setting for input 2, issue the command: RTRV-SYNC::CLK-2:SV381:::PARAMETER=PRIORITY; 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 165...
Page 166 To set input 1 to expect a bridged signal level, issue the command: ED-SYNC::CLK-1:SV385:::BRIDGED=Y; To retrieve the bridged setting for input 1, issue the command: RTRV-SYNC::CLK-1:SV386:::PARAMETER=BRIDGED; To disallow the use of SSMs as input qualification criteria, issue the command: ED-EQPT::CLK:SV43:::SYNCMDE=AUTO; 166 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 167: Provisioning The Ntp Parameters
ED-EQPT command with the APPLYCFG keyword to apply the changes. You can issue the command immediately before or after issuing the change command. For further information on these commands, see the TimeHub 5500 TL1 Reference Guide (097-55502-01). You can also use the TimeCraft 1.3 application to provision the NTP Server card;...
Page 168: Provisioning The Bonding Parameters
NTP servers, the TimeHub NTP Server card needs to know their IP addresses and share their authentication MD5 key IDs, if authentication is used. To provision the NTP Server card to Client mode, issue the following commands: ED-EQPT::S0-OUTA:CTAG:::SVRIP1=<server ip address>; ED-EQPT::S0-OUTA:CTAG:::TSSTATE=DISABLED; ED-EQPT::S0-OUTA:CTAG:::NTPPAIR=APPLYCFG; 168 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 169: Provisioning For Md5 Authentication
A a fixed percentage of the card processing capacity limit; the remaining percentage will be assigned to port B. To enable traffic load limits, issue the following commands: 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 169...
Page 170: Testing An Expansion Shelf
This test procedure provides the steps needed to ensure that a TimeHub 5500 expansion shelf is correctly installed and functioning properly. Before performing this test, ensure that the TimeHub 5500 Master shelf and Expansion shelf are rack mounted and that all cable connections are complete.
Page 171 CLK1 and CLK2. The Clock cards on the Main shelf continue to use CLK1 and CLK2. 3. Enter the command to switch the inactive Clock card to the active SW-DX-EQPT state. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 171...
Page 172 12. Remove the Expansion Link 1 cable. 13. Verify that an alarm appears for the event. 14. Enter the command and verify that the expansion shelf’s RTRV-NETYPE-ALL current hardware configuration is listed in the response. 172 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 173: Provisioning Inputs On A Remote Shelf
The other columns (SSM 1 and SSM 2) are advanced features that are not covered here. The top row in this screen, labeled Enabled, shows which inputs are enabled. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 173...
Page 174: The Remote Input Configuration Window
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 indicate that a valid input is connected. 174 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 175: The Remote Input Configuration Window
Assuming that CC1 is the only qualified input, the “A” LED should also light, indicating that this is the Active timing reference, the one being used to drive outputs provided by this shelf. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 175...
Page 176 LAN communications port. The TL1 RTRV-COND command provides this information (for example, input loss of signal or out of frame can be observed via RTRV-COND). Refer to the TimeHub 5500 TL1 Reference Manual for details. 176 TimeHub 5500 User’s Guide...
Page 177 The default setting for FREEACT on a Remote shelf is SQUELCH, which means no output is possible when in Freerun mode. By setting FREEACT to CONTINUE, output is allowed in when in Freerun. See the TimeHub 5500 TL1 Reference Manual for details.
Page 178: Testing The Clock Input Signals
– DS1 Terminated: 1.0 V to 3.5 V base-to-peak, 100  terminated – DS1 Bridged: 0.10 V to 0.35 V base-to-peak, 100  terminated – CC: 1.5 V to 4.0 V base-to-peak, 130  terminated (only used with Remote shelf) 178 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 179: Typical Oscilloscope Settings
0 dB DSX (TERM) signal, set the volts-per-division scale to 1 V per division; to measure a –20 dB DSX (BRDG) signal, set the volts-per-division scale to 100 mV per division. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 179...
Page 180: Provisioning The Outputs
TL1 commands to provision the 5 MHz output card, or you can transition to SynCraft release 1.3 or higher for full craft support of the 5 MHz output card. 180 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 181: Configuring Outputs Using Timescan Thc
Output Driver card pair is removed or not installed. Ports 1–20 – Set to Required to generate an event if you install an Output Connector card of the wrong type. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 181...
Page 182: Ds1 Output Waveforms
100% V Test load impedance: 100  for Pulse Rise Time 22 AWG twisted pair cable. 324 ns <150 ns 50% V ±50 ns Figure 4-16. DS1 Output Waveforms 182 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 183: Cc Output Waveforms
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. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 183...
Page 184 4. Check the framing setting by issuing the following command: RTRV-EQPT::S1-OUTC-PG2:SV272:::parameter=OUTESF; which produces the following response: SYMMBITS 04-10-11 10:43:40 SV272 COMPLD "S1-OUTC-PG2::OUTESF = Y" This response shows that the output framing is set to ESF. 184 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 185: Securing Cards In The Shelf
Configuring CC Signals When configured as a Master shelf, the TimeHub 5500 has several capabilities provided to facilitate operation of the shelf with a downstream Remote shelf. These...
Page 186: Phase Aligning Cc Input And Cc Output
– The CC input has a problem, such as no signal is present, signal levels are incorrect or it has a formatting problem (such as it does not contain bipolar violations). 186 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 187: Setting The Delay On Cc Outputs
You set the CC delay parameters on the Configuration Output tab in the TimeScan THC application, as shown in Figure 4-18. You set the delay according to the length of cable (in feet) connected to the output. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 187...
Page 188: The Configuration Output Tab
The CCDENB keyword is used to enable/disable the CC delay capability of individual output ports. See the TL1 Reference Guide for details. 188 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 189: Testing The Ntp Cards
NTP Output Connector module The SFP A LED illuminates and blinks with activity on the Ethernet port  The SFP B LED illuminates and blinks with activity on the Ethernet port  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 189...
Page 190: Verifying The Port A And Port B Ip Addresses
5. Apply the changes to the NTP Server card: ED-EQPT::Sa-OUTb:CTAG:::NTPPAIR=APPLYCFG; where a and b are described in step 4. 6. Verify all the port settings: RTRV-EQPT::Sa-OUTb:CTAG:::PARAMETER=PPAIP; RTRV-EQPT::Sa-OUTb:CTAG:::PARAMETER=PPAMASK; RTRV-EQPT::Sa-OUTb:CTAG:::PARAMETER=PPAGATE; RTRV-EQPT::Sa-OUTb:CTAG:::PARAMETER=PPBIP; RTRV-EQPT::Sa-OUTb:CTAG:::PARAMETER=PPBMASK; RTRV-EQPT::Sa-OUTb:CTAG:::PARAMETER=PPBGATE; 190 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 191: Verifying The Ntp Server Function
This test verifies that the NTP Server card is functioning and sending NTP packets. This procedure uses the SymmTime™ application available at www.symmetricom.com. Follow the on-line instructions to download and install the application. You must have administrator rights on the computer in order to install SymmTime.
Page 192: The Sync Server Window In Symmtime
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 SymmTime 192 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 193: The Synchronization Status Window In Symmtime
SymmTime cannot connect to the server. Troubleshoot the connection first, then the NTP Server card. 11. Verify that Port B is working by repeating steps 4 through 10, using the Port B IP address. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 193...
Page 194: Verifying The Bonding Mode Function
This procedure requires that you connect Ports A and B to the computer through a switch. This procedure also uses the SymmTime™ application, which is available at www.symmetricom.com. Follow the on-line instructions to download and install the application. You must have administrator rights on the computer in order to install SymmTime.
Page 195: Verifying The Redundancy Function
This procedure requires that you install another NTP Server card into the adjacent slot. Both NTP server cards must be in the same group. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 195...
Page 196 This procedure also uses the SymmTime™ application available at www.symmetricom.com. Follow the on-line instructions to download and install the application. You must have administrator rights on the computer in order to install SymmTime.
Page 197: Checking System Operation
 Enabling Security The TimeHub 5500 has a security feature that requires a user to supply a user name and password in order to access or modify parameter settings. Each user can be assigned to one of three different security levels; each level can access system commands that are assigned to corresponding levels.
Page 198: User Level And Access
If the Management card switch S1-1 is set to On, continue with Step 3. Set switch S1-1 to Off. 4. Install the Management card into its slot (see Installing the Management Card, on page 139). 198 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 199: Managing The User List
Figure 4-23. You use this dialog box to manage the user list, to force off a logged-on user, or to inhibit access or restore access to a specific user. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 199...
Page 200: The User Administration Dialog Box
5. Retype the password in the Confirm Password field. 6. Click Accept. 7. Click Close to close the User Administration dialog box. 200 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 201 <uap> is the security level (USER, SECURITY, or ADMIN) To change your password, issue the ED-PID command: ED-PID:[<tid>]:<aid>:<ctag>::<oldpid>,<newpid>; where: <aid> is your current user name <oldpid> is your old password <newpid> is your new password 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 201...
Page 202: Setting The Configuration To Factory Defaults
To reset all Clock module settings to their factory default settings, use the procedure in this section. All outputs are enabled; Symmetricom does not recommend that you perform this procedure on a fully operational 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.
Page 203 [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; 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 203...
Page 204 Chapter 4 Testing and Configuring the TimeHub Setting the Configuration to Factory Defaults 204 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 205: Chapter 5 Maintaining The Timehub 5500
Chapter 5 Maintaining the TimeHub 5500 Chapter 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 ...
Page 206: Clearing Output Port Alarms
Chapter 5 Maintaining the TimeHub 5500 Clearing Output Port Alarms Clearing Output Port Alarms The TimeHub Output cards contain a sensing circuit that detects output signal failures. Every output port has a sensing circuit. The sensing circuit detects and reports on internal component failures associated with the port output circuitry.
Page 207: Clearing False Port Alarms
Chapter 5 Maintaining the TimeHub 5500 Clearing Output Port Alarms Other than the possible alarm reporting, a measurement made with such a connection remains as valid as it would otherwise have been. While such a connection cannot be used in any case to evaluate output signal characteristics...
Page 208: The Configuration Output Screen
Chapter 5 Maintaining the TimeHub 5500 Clearing Output Port Alarms Figure 5-1. The Configuration Output Screen Figure 5-2. Attempt to Clear Port Alarm Query Screen Note: The screen identifies that the C card group is the target for clearing. Click OK to proceed with the attempt to clear the alarm.
Page 209: Testing The Cards
Chapter 5 Maintaining the TimeHub 5500 Testing the Cards If there is only one output card in the card group (non-redundant), the sensing of a port alarm does not disable the output, hence it continues to sample for the port alarm condition.
Page 210: Active Ds1 Input Signal Indication
Chapter 5 Maintaining the TimeHub 5500 Testing the Cards DS1 Input 1 Active Figure 5-3. Active DS1 Input Signal Indication 210 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 211: Removing A Clock Card
Troubleshooting the TimeHub 5500 The figures and tables in this section provide troubleshooting actions for the TimeHub 5500 using the LEDs on the front panel of the Clock, Output Driver, Management, and EC cards. 097-55501-01 Revision M – January 2009...
Page 212: Troubleshooting The Clock Card
Chapter 5 Maintaining the 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.
Page 213: Troubleshooting The Clock Card Front Using The Leds
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-1. Troubleshooting the Clock Card Front Using the LEDs Name State Description Action Power Power is not present. 1. If all LEDs on the shelf are off, apply power or troubleshoot the –48 V power source.
Page 214 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-1. Troubleshooting the Clock Card Front Using the LEDs (Continued) Name State Description Action TRACK MODE The Clock card is not in a None required. warm-up state. Warmup Yellow The Clock card is warming None required.
Page 215 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-1. Troubleshooting the Clock Card Front Using the LEDs (Continued) Name State Description Action TRACK MODE The system has not gathered None required if the system has been sufficient information during in fast track for less than 32 hours.
Page 216 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-1. Troubleshooting the Clock Card Front Using the LEDs (Continued) Name State Description Action INPUTS The associated reference If the INPUTS E LED is off or if the input is not qualified (Q) for Warmup LED is lit, none required.
Page 217 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-1. Troubleshooting the Clock Card Front Using the LEDs (Continued) Name State Description Action Standby This card is not generating an If the Active LED on this card is lit, output that is phase-locked to none required.
Page 218 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 If an SNDRIFT event(s) occur, the following considerations can be helpful in determining what action, if any, you should take: If there is more than one input enabled, is the SNDRIFT event reported for more ...
Page 219: Sndrift Decision Tree
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 A. Is more than one input being used for timing? B. Are both Clock cards reporting SNDRIFT? C. The input is a likely reason for SNDRIFT. Analyze the input for excessive drift, which can eventually result in disqualification.
Page 220: Troubleshooting The Output Driver Card
Chapter 5 Maintaining the TimeHub 5500 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.
Page 221: Troubleshooting The Output Driver Card Using Front Panel Leds
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-2. Troubleshooting the Output Driver Card Using Front Panel LEDs Name State Description Action Power Power is not present. If all LEDs on the system are off, apply power or troubleshoot the –48 V power source.
Page 222 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-2. Troubleshooting the Output Driver Card Using Front Panel LEDs (Continued) Name State Description Action Alarm (cont’d) 2. If the Output card contains FPGA version B or later the Alarm LED lights if there is a port alarm detected.
Page 223: Reading The Output Driver Firmware Version
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-2. Troubleshooting the Output Driver Card Using Front Panel LEDs (Continued) Name State Description Action Ports 1–20 There is no Output Connector None required. card connected to ports 1 through 20;...
Page 224 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 SYMMBITS 99-10-03 20:55:19 sc1 RTRV "TSG:Symmetricom,5500,TSG" "S0-IMC:,090-55542-01-A,,W0320A,J20280,D0TPN0JAAA,297085" "S0-CLK1:,090-55512-01-A,,R4209A,0000000,D0TPVPJAAA,296936" "S0-CLK2:,090-55514-01-A,,R4209A,0000000,D0TPKPJAAA,296939" "S0-OUT5C:,090-55581-01-A,,R4209A,00J21559,D0TPJN0AAA,267799,DS1," "S0-OUT6C:,090-55581-01-A,,R4114C,00J43212,DOTPJN0AAA,267799,DS1," > SYMMBITS 99-10-03 20:55:19 sc1 COMPLD "S2-CLK1:,090-55545-01-B,,4209A,,D0C1ZZ0AAA,299465" "S2-CLK2:,090-55545-01-B,,4209A,,D0C1ZZ0AAA,299465" "S2-OUT12F:,090-55581-01-A,,R4209A,00000000,D0TPJN0AAA,267799,," "S2-OUT14G:,090-55581-01-A,,R4114C,00J21577,D0TPJN0AAA,267799,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.
Page 225: Troubleshooting The Management Card
Chapter 5 Maintaining the TimeHub 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.
Page 226: Management Card Front Panel Items
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-3. Management Card Front Panel Items Name State Description Action Power Power is not present. 1. If all LEDs on the system are off, apply power or troubleshoot the –48 V power source.
Page 227 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-3. Management Card Front Panel Items (Continued) Name State Description Action SHELF The –48V B input is at the None required. POWER –48V normal voltage level. B Fail The –48V B input is below the...
Page 228 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-3. Management Card Front Panel Items (Continued) Name State Description Action ALARMS There is no minor alarm None required. within the shelf. Shelf Minor A minor alarm condition Refer to the TL1 Reference Guide exists in the shelf.
Page 229 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-3. Management Card Front Panel Items (Continued) Name State Description Action AUDIBLE – Silences all audible alarms None required. ALARMS when pressed. Cutoff (Pushbutton) PASS The Management card is not None required.
Page 230: Troubleshooting The Expansion Controller Card
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.
Page 231: Troubleshooting The Expansion Controller Card
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-4. Troubleshooting the Expansion Controller Card Name State Description Action Power Power is not present. 1. If all LEDs on the system are off, apply power or troubleshoot the –48 V power source.
Page 232 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-4. Troubleshooting the Expansion Controller Card (Continued) Name State Description Action Expansion Link The link 1 cable is not Connect the link 1 cable. connected. The link 1 cable is attached,...
Page 233: Troubleshooting The 5 Mhz Output Driver Card
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting 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.
Page 234: Troubleshooting The 5 Mhz Output Driver Card
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-5. Troubleshooting the 5 MHz Output Driver Card Name State Description Action Power Power is not present. 1. If all LEDs on the system are off, apply power or troubleshoot the -48 V power source.2.
Page 235: Troubleshooting The Ntp Server Card
Chapter 5 Maintaining the TimeHub 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.
Page 236: Troubleshooting The Ntp Server Card
Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-6. Troubleshooting the NTP Server Card Name State Description Action Power Power is not present. 1. If all LEDs on the system are off, apply power or troubleshoot the –48 V power source.
Page 237 Chapter 5 Maintaining the TimeHub 5500 Troubleshooting the TimeHub 5500 Table 5-6. Troubleshooting the NTP Server Card (Continued) Name State Description Action NTP Server card set to None required. Client/Server mode. TimeSource 3x00 TOD signal 1. Check the TOD connection is not present.
Page 238: Replacing Cards
Chapter 5 Maintaining the TimeHub 5500 Replacing Cards Replacing Cards Replacing the Clock Card Warning: Before replacing the Clock card, make sure that the system has at least one clock active and is NOT operating in Passthrough mode by checking the light on the Management card.
Page 239: Replacing The Output Driver Card
Chapter 5 Maintaining the TimeHub 5500 Replacing Cards Replacing the Output Driver Card To replace the Output Driver card, follow the procedure below while referring to Figure 5-6. 1. Put on a properly grounded ESD wrist strap. 2. Using a #2 Phillips-head or Pozidrive screwdriver, loosen the captive screws on the front panel.
Page 240 Chapter 5 Maintaining the TimeHub 5500 Replacing Cards To minimize the update transition period, use the following techniques, in order of recommended preference: 1. Disconnect the Ethernet cable from the Timehub prior to unplugging the IMC card. This will prevent the new IMC card from broadcasting the “0.0.0.0” IP address when it is plugged in.
Page 241: Replacing The Expansion Controller Card
TimeScan THC to the Local port on the TimeHub 5500. Log in to the TimeHub if security is enabled. If you are not using a LAN connection, skip to Step 13.
Page 242: Replacing The 5 Mhz Output Driver Card
Chapter 5 Maintaining the TimeHub 5500 Replacing Cards 7. Verify that any alarm conditions are cleared. 8. Tighten the captive screws at the top and bottom of the card. Replacing the 5 MHz Output Driver Card To replace the Output Driver card, follow the procedure below.
Page 243: Replacing Fuses
Chapter 5 Maintaining the TimeHub 5500 Replacing Fuses 6. Reconnect each cable to its appropriate port connector. 7. 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.
Page 244: Location Of Fuse Xf1 On The Clock Card
Chapter 5 Maintaining the TimeHub 5500 Replacing Fuses Front Panel Fuse Figure 5-11. Location of Fuse XF1 on the Clock Card 1. Put on a properly grounded ESD wrist strap. 2. Press the Force Active button on the other Clock card to ensure that the card you’re replacing is in Standby.
Page 245: Replacing The Fuse In The Management Card
Chapter 5 Maintaining the TimeHub 5500 Replacing Fuses Replacing the Fuse in the Management Card To replace the fuse on the Management card, follow the procedure in this section. Figure 5-12 shows the location of the fuse holder on the card.
Page 246: Replacing The Fuse In The Output Driver Card
Chapter 5 Maintaining the TimeHub 5500 Replacing Fuses 13.Tighten the captive screws at the top and bottom of the card. Replacing the Fuse in the Output Driver Card To replace the fuse on the Output Driver card, follow the procedure in this section.
Page 247: Location Of Fuse F1 On The Ec Card
Chapter 5 Maintaining the TimeHub 5500 Replacing Fuses Front Panel Fuse Figure 5-13. Location of Fuse F1 on the EC Card 1. Put on a properly grounded ESD wrist strap. 2. Using a #2 Phillips-head or Pozidrive screwdriver, loosen the captive screws on the front panel of the card.
Page 248: Upgrading The Software
From time to time, Symmetricom releases software to improve the performance of the TimeHub 5500. This section describes how to install a software upgrade to the unit. You will need to have a computer that is connected to the TimeHub via the serial or Ethernet port You perform the software upgrade using an existing serial or Ethernet connection.
Page 249: The Timehub Warp Window
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 file. The selected file appears in .CFG the New Version field.
Page 250 Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software 9. Click Go to start the download. Warning: To avoid corrupting the file system, do not power down the shelf or remove cards while the software is downloading. 10.Click OK to complete the download when the Success dialog box appears.
Page 251: Timehub Clock Directory
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Figure 5-16. TimeHub Clock Directory 18.Switch the Active and Standby Clock cards by doing either: – Pressing the Force Active button on the front panel of the Standby Clock card, or –...
Page 252: Manually Downloading Software
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Table 5-7. Default Values of Keywords User Setting (Keyword) Default AOMERGE LCLAO Always RMTAO Always LCLBAUD 9600 LCLECHO RPTALL SNGCLK TIDQUIET USESBRCK YEAR4 If you are using any of these keywords and the desired setting is not the default, set the value after the download by issuing the ED-EQPT command with the appropriate keyword and value.
Page 253: Example Ftp Download Process, Part 1
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software 3. Type (or other appropriate path name) and press cd upgradepackage\ftp Enter to set the command window to the FTP directory containing the files that you want to download to the TimeHub.
Page 254 Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software name is at the Security level. To create a new user, see Managing the User List, on page 199. Selecting the Target Card 7. Type and one of the following to select the card that will have its firmware upgraded: –...
Page 255: Example Ftp Download Process For Clock 1, Part 2
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Preparing to Transfer Files 11.Type , then press Enter to set the binary transfer mode. binary 12.Type , then press Enter to confirm the binary transfer mode is selected. See type Figure 5-18 for a continuation of the example for Clock 1.
Page 256: Example Ftp Download Process, Part 3
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software The transfer time is typically 2 minutes, and ends with a message indicating the number of bytes sent, the time it took to send the file, and the transfer rate. Warning: To avoid corrupting the file system, do not power down the shelf or remove cards while the software is downloading.
Page 257: Downloading To The Second Clock Card
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Restarting the Clock Card 15.Type , then press Enter to ensure that you are in the intended directory; in this case, it should be the /CLK1 directory. If you are not in the intended directory, type , then press Enter.
Page 258: Backing Up The New Software
TimeHub. Backing Up the New Software Once you install the software and the TimeHub is operating normally, Symmetricom recommends that you back it up. After performing the procedure in the previous section, each card contains a copy of the new version of MAIN.HXB and, most likely, a copy of the version it was running prior to the upgrade in MAIN1.HXB.
Page 259: Repairing A Corrupt File System
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Table 5-10. Backing Up the New Software (Continued) Type This: Comment Create a backup copy of MAIN.HXB in the CLK2 directory. quote backup This takes approximately 3 minutes. You cannot make changes to the file system during this time.
Page 260: Upgrading The Timehub Ntp Firmware
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Upgrading the TimeHub NTP Firmware Use this procedure to upgrade the firmware in the NTP Server card from Release 2.0.6 to 2.0.x. Do not use this procedure to upgrade the firmware from Release 1.x.x to any later version.
Page 261 Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software 5. Issue the following TL1 command to check the status of the upgrade: RTRV-NTP-INFO:[<tid>]:<aid>:[<ctag>]::DWNLD; for example: RTRV-NTP-INFO::S0-OUT4B:user1::DWNLD; where: – is the <aid> of the standby NTP card being upgraded S0-OUT4B –...
Page 262: Troubleshooting Ntp Firmware Download Responses
Chapter 5 Maintaining the TimeHub 5500 Upgrading the Software Verify that the Active NTP LED on the upgraded card is blinking. 10.Perform the procedure in Verifying the NTP Server Function, on page 191 to ensure that the newly upgraded NTP Server card is performing properly. If so, repeat steps 4 through 10 to upgrade the second NTP Server card (in the example, the NTP Server card in slot S0-OUT3B).
Page 263: Returning The Timehub For Repair
3. Restart the upgrade process. Returning the TimeHub for Repair You should return the equipment to Symmetricom only after you have exhausted the troubleshooting procedures described earlier in this chapter, or if Symmetricom Global Services has advised you to return the unit.
Page 264: Equipment Return Procedure
Equipment Return Procedure To return equipment to Symmetricom for repair: 1. Call Symmetricom Global Services (SGS) at 888-367-7966 (toll-free in USA only), 408-428-7907, or +49 700 3288 6435 in Europe, Middle East, or Africa to obtain a return material authorization number (RMA) before returning the product for service.
Page 265: User Manual Updates
Manual updates are available by logging in to Telecom Solutions Support at: http://www.symmetricom.com/support/online-support// Note: If you are downloading a manual for the first time, you will need to register with Symmetricom. If you are currently registered, login and download the manual update. 097-55501-01 Revision M – January 2009...
Page 266 Chapter 5 Maintaining the TimeHub 5500 User Manual Updates 266 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 267: Chapter 6Specifications
Chapter 6Specifications Chapter This chapter includes: Specifications  Factory Default Values  097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 267...
Page 268: Specifications
Chapter 6 Specifications Specifications Specifications The TimeHub 5500 equipment specifications are listed in the following sections. Local Communication Port Connector Type: 9-pin, female D connector Connector Label: Local Connector Location:Management card (front) Rear of shelf Electrical Interface: RS-232 Baud Rate:...
Page 269: Expansion Link 2 Input
Cable Attenuation: 7.0 dB maximum LOS Threshold: –14 dB to –10 dB (terminated) relative to nominal 3 V amplitude –34 dB to –30 dB (bridged) relative to nominal 3 V amplitude 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 269...
Page 270: Prs Reference Input
Connector 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: 1.544 Mb/s 270 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 271: Composite Clock Outputs
75 , VSWR< 1.5:1 @ 5MHz, unbalanced Impedance Output frequency 5 MHz locked to 1.544 MHz Number of ports 4 – mutable Redundancy 1+1 (both output cards are active and their outputs are OR’ed together) 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 271...
Page 272: Ntp Server Card
OFFICE ALARMS (NC, C, NO) Connector Location:Input/Alarm Connector card (rear) Contact Type: Dry contact Severity: Critical (audible and visible) Major (audible and visible) Minor (audible and visible) State: Normally open and normally closed 272 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 273: Input Alarms
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) 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 273...
Page 274: Wire-Wrap Panel Mechanical
FCC Part 15, Sub Part B, Class A Certification NEBS Level 3 compliant Factory Default Values This section describes the factory default values for parameters within the TimeHub 5500. 274 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 275: Management Card Default Settings
Chapter 6 Specifications Factory Default Values Management Card Default Settings Table 6-1 lists the factory defaults for the Management card in the TimeHub 5500. Table 6-1 Management Card Default Settings Setting Factory Default Range Security On (Enabled) | Off (Disabled)
Page 276 192 | 768 | 3072 | 12288 | 49152 Time Constant (ST3E) 102 | 190 | 384 | 1824 | 24864 Wait Time to restore Sync 30 sec 0 to 1000 sec source 276 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 277: Output Driver Card Default Settings
Chapter 6 Specifications Factory Default Values Output Driver Card Default Settings Table 6-3 lists the factory defaults for the TimeHub 5500 Output Driver card. Table 6-3 DS1 and E1 Output Module Default Settings Setting Factory Default Range Enable | Disable Outputs...
Page 278 Read Input SSM Bits Sync Mode Auto Time Constant (ST2 Clock) Time Constant (ST3E Clock) Wait Time to restore Sync 30 sec source Output Driver Module Defaults Enable/Disable Outputs Enabled 278 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 279 Table 6-4 User Changes to Factory Default Settings (Continued) Setting Factory Default User Changes Framing N (prior to firmware  version 4236B) Y (firmware version  4236B and higher) Output Quality Level 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 279...
Page 280 Chapter 6 Specifications Factory Default Values 280 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 281: Appendix A Maintenance Of Prior Master And Expansion Shelves
4. Using a digital voltmeter, measure between the ground and chassis and verify that no voltage exists between them. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 281...
Page 282: A-1 Connectors On The Rear Panel Of The Master Shelf
Remove the paint and sand the area around the screw hole to ensure proper conductivity. Coat the connection with an electrically conductive antioxidant compound such as Kopr-Shield spray. 282 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 283: Grounding The Wire-Wrap Panel
Warning: To avoid possible damage to equipment, you must provide power source protective fusing as part of the installation. The TimeHub is intended for installation in a restricted access location. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 283...
Page 284: Testing Power Connections
3. Using 1 mm / 18 AWG (minimum) stranded wire, connect primary power to the A terminal screws and secondary power to the B terminal screws. Symmetricom recommends that you use a #6 spade lug termination for each power lead. If separate power supplies are not available, connect both A and B power from the same source.
Page 285: Making Ground And Power Connections-Expansion Shelf
Expansion shelf. The power connections on the Expansion shelf are not the same as on the Master shelf. 097-55501-01 Revision M – January 2009 TimeHub 5500 User’s Guide 285...
Page 286 Chapter A Making Ground and Power Connections–Expansion Shelf 286 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009...
Page 287: Index
Ethernet requirements DS1 input Expansion shelf 88, frame ground null-modem 123, Expansion shelf 126, Output Connector modules 43, Main shelf 103, Cable Management kit, installing wire-wrap panel 105, card replacement 097-55500-01 Revision M – January, 2009 TimeHub 5500 User’s Guide 287...
Page 288 Expansion Controller card gateway address front panel default 275, installing setting via TimeScan THC kit, part number setting via TL1 commands overview 42, gender changer, installing 129, 288 TimeHub 5500 User’s Guide 097-55500-01 Revision M – January, 2009...
Page 289 TL1 command maintenance prior master & expansion shelf Management card default settings LAN connection enabling security LAN port, see Ethernet port front panel laptop computer installing LEDs kit, part number 097-55500-01 Revision M – January, 2009 TimeHub 5500 User’s Guide 289...
Page 290 Q (Qualified) LED front panel quality level installing in Expansion shelf effect on switching installing in Master shelf SSM, overview kit, part number quartz Clock cards overview 290 TimeHub 5500 User’s Guide 097-55500-01 Revision M – January, 2009...
Page 291 TimeScan THC Tracking LED troubleshooting protocol setting Master/Remote mode 5 MHz Output Driver card SFP connections Clock card 212–217 Shelf Alarm LED 231, Expansion Controller card 097-55500-01 Revision M – January, 2009 TimeHub 5500 User’s Guide 291...
Page 292 TimeScan THC wire-wrap panel managing via TL1 commands cables user changes to default settings connecting user security levels, defined installing 96, part numbers wrist strap, ESD 292 TimeHub 5500 User’s Guide 097-55500-01 Revision M – January, 2009...

Symmetricom TimeHub 5500 User Manual

How to Use this Guide

Chapter 1 Description

Chapter 2 Engineering Ordering Information

Chapter 3 Installing the Timehub

Chapter 4 Testing and Configuring the Timehub

Chapter 5 Maintaining the Timehub 5500

Quick Links

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for Symmetricom TimeHub 5500