TimeSource 3000
GPS Primary Reference Source
097-72000-02
Issue 6: October 2003
Symmetricom, Inc.
2300 Orchard Parkway
San Jose, CA 95131-1017
http://www.symmetricom.com
Copyright © 1999-2003 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.
Acronyms and Abbreviations
AIS alarm indication signal
E1 digital transmission (2.048 Mb/s)
ESD electrostatic discharge
ESF extended superframe
GPS Global Positioning System
LOS loss of signal
MDEV mean time deviation
pps pulse per second
PRS primary reference source
RO remote oscillator
RU rack unit (1.75 in.)
SSM synchronization status messaging
T1 digital transmission (1.544 Mb/s)
TDEV time deviation
TOD time of day
UTC U niversal Coordinated Time
What’s New in This Manual
This issue of the TimeSource 3000 user manual has the following changes from
the previous issue:
• Added “Startup”, “Bridging/Holdover Behavior” and “Time Figure of Merit”
sections to Chapter 1.
• Removed TimeScan Craft connection key (020-46700-001) from system
equipment lists in Chapter 2.
• Added section on TimeWizard software installation application to Chapter 3.
• Added Procedure H, TimeWizard Installation and Operation, to Chapter 3.
• Added TL1 command “RTRV-HDR” for NMA keep alive responses.
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
Table of Contents
Chapter 1 Description
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Global Positioning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
IF Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Local Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Clock Extractors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
NTP TimeServer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Network Time Protocol Password Activation . . . . . . . . . . . . . . . . . . . . . . . 22
BesTime Ensemble Timing Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2
3
S
T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Eight Additional T1 Outputs (990-72010-02 Systems Only) . . . . . . . . 22
TOD Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
IRIG-B TOD Outputs (990-72010-05 Systems Only) . . . . . . . . . . . . . . 22
1 PPS Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10 MHz Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Eight Mixed E1/T1 Outputs (990-72010-06 Systems Only) . . . . . . . . . 23
Eight Mixed T1/CCK Outputs (990-72010-07 Systems Only) . . . . . . . . . . 23
Composite Clock Outputs (990-72010-03 Systems Only) . . . . . . . . . . . . . 23
Alarm Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Communications Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Passthrough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Alarm Programmability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 2 Engineering & Ordering
Site Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Lightning Suppressor Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Antenna Location Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Cabling Considerations for Standard Configurations . . . . . . . . . . . . . . . . . . . . 33
Antenna Cable Choices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5
TimeSource 3000 5
Contents
097-72000-02 Issue 6: October 2003
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Cabling Considerations for Optional Configurations . . . . . . . . . . . . . . . . . 35
IRIG-B TOD (990-72010-05 Systems Only) . . . . . . . . . . . . . . . . . . . . 35
Remote Oscillator Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
RJ-422–to–RJ-232 TOD Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Antenna-to-Shelf Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Shelf Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
With Two T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
With Ten T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
With Two T1 and Eight Composite Clock Outputs . . . . . . . . . . . . . . . . . . . 42
With Two T1 and Two IRIG-B TOD Outputs . . . . . . . . . . . . . . . . . . . . . . 43
With Two T1 and Eight Mixed E1/T1 Outputs . . . . . . . . . . . . . . . . . . . . . . 44
With Two T1 and Eight Mixed T1/CCK Outputs . . . . . . . . . . . . . . . . . . . . 45
User-Supplied Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
For Antenna Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Outputs, Power, and Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
For Shelf Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Chapter 3 Installation
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Power and Signal Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Frame Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Alarms Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
GPS Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Additional T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Composite Clock (CCK) Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Mixed E1/T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Mixed T1/CCK Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
IRIG-B TOD Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Remote Oscillator Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
DCD Shelf with Isolation Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
DCD Shelf without Isolation Module . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Source Other than DCD Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6 TimeSource 3000
097-72000-02 Issue 6: October 2003
Contents
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
1 PPS Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10 MHz Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Time of Day Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
T1 Reference Inputs (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
T1 Synchronization Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Communication Port 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
S
Communication Port 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Craft Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Factory-Set Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Chapter 4 TL1 Reference
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Autonomous Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Report Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Report Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Tasks/Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Activate User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cancel User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Copy Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Delete Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Delete User Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Edit Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Edit Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Edit Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Enter Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Enter User Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Initialize Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Initialize Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Initialize System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Operate Alarm Cutoff All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Retrieve Alarm All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Retrieve Alarm Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Retrieve Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
2
3
5
TimeSource 3000 7
Contents
097-72000-02 Issue 6: October 2003
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Retrieve Condition All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Retrieve Condition Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Retrieve Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Retrieve GPS Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Retrieve Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Retrieve Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Retrieve Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Retrieve Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Retrieve User Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Set Source Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Chapter 5 Troubleshooting
Troubleshooting with Front Panel Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Troubleshooting with Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Card Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Repair and Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Manual Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Chapter 6 Specifications
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Communication Port 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Communication Port 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Craft Communication Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Ethernet Communication Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Remote Oscillator Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
T1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
1 PPS Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Eight Additional T1 Outputs (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Eight Additional Mixed E1/T1 Outputs (Optional) . . . . . . . . . . . . . . . . . . . 198
E1/T1 Common . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
E1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Eight Additional Mixed T1/CCK Outputs (Optional) . . . . . . . . . . . . . . . . . 200
T1/CCK Common . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
T1 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
8 TimeSource 3000
097-72000-02 Issue 6: October 2003
Contents
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
CCK Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Eight Additional Composite Clock Outputs (Optional) . . . . . . . . . . . . . . . 201
Time of Day Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Cisco Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
IRIG-B (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
10 MHz Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Office Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Rear Panel Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
S
Front Panel Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Front Panel Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Simple Network Time Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Shelf Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
2
3
5
TimeSource 3000 9
Contents
097-72000-02 Issue 6: October 2003
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
10 TimeSource 3000
097-72000-02 Issue 6: October 2003
Contents
Description
This chapter provides an overview of the
global positioning system, and a physical and
functional description of the TimeSource 3000.
Chapter 1
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Overview
1
The TimeSource 3000 is a Primary Reference Source (PRS) that receives and processes
signals from GPS satellites, and outputs Stratum 1 synchronization signals traceable to UTC.
TimeSource 3000 applications include synchronization for central offices, radio base
stations, transmission nodes, and other instances where a primary reference source can
improve the performance of telephony network facilities.
The TimeSource 3000 creates timing outputs by ensembling signals from several sources.
The sources include GPS signals, an onboard local oscillator, and optional T1 and remote
oscillator signals. Timing outputs created from the ensemble are composed of the most
stable and least noisy parts of each input. Synchronization outputs are delivered in a framed,
all-ones, T1 format, a 10 MHz signal, a 1 pps signal, composite clock signals (optional), and
time of day (TOD) signals.
The TimeSource 3000 minimizes timing impairments such as jitter and wander, that are
created by network and transmission systems. The synchronization timing is traceable to the
GPS, which provides the highest level of synch ronization for tele phony networks. The
TimeSource 3000 with its GPS input is a stand-alone office PRS. With the optional inputs
ensembled, overall system performance is improved, and holdover is extended if GPS
signals become disrupted.
12 TimeSource 3000
097-72000-02 Issue 6: October 2003
Description
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
Global Positioning System
S
The United States Government developed the GPS navigation system. It is a satellite-based,
radio navigation aid designed to provide global, all-weather, precise navigation and timing
capability to users 24 hours a day.
The satellites, circling the earth at approximately 12,550 statute miles, are arranged in 6
orbits with 4 operational satellites in each orbit. Each satellite has an orbital period of
approximately 12 hours. This configuration assures that a minimum of 4 satellites, and as
many as 12, are in view anywhere in the world at all times.
The TimeSource 3000 tracks all satellites within its field of view. The performance of each
tracked satellite is observed and compared to the others, and available for use in the timing
solution. A satellite with unacceptable performance data is dropped from the timing
solution.
2
3
1
5
TimeSource 3000 13
Description
097-72000-02 Issue 6: October 2003
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Physical Description
1
The TimeSource 3000 consists of a shelf, a plug-in card, an antenna, cables, hardware, and
software. An optional factory-installed daughter card may be included to provide eight
additional T1 outputs, eight additional composite clock outputs, two additional IRIG-B TOD
timing outputs, or eight mixed El/T1 outputs.
The shelf occupies two rack mounting un its (RU), and can be mounted in a 19 inch rack or a
23 inch rack. One RU (1.75 in.) of air space above the TimeSource 3000 is required for
proper ventilation. Other than a communications connector on the front panel, all connectors
are at the rear of the shelf.
The antenna (Figure 1) is encased in weather-resistant plastic housing for outdoor
installation, usually on a roof. A single coaxial cable carries signal and power between the
antenna and the shelf.
Figure 1.Antenna
12.375 in.
1.75 in.
14 TimeSource 3000
097-72000-02 Issue 6: October 2003
Description
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
Functional Description
S
Overview
Figure 2 shows the main functions of the TimeSource 3000. The center of the TimeSource
3000 is the Ensemble Timing Generator, which uses the BesTime algorithm to analyze the
phase and frequency relationships, individually and collectively, of the timing sources. Each
type of timing source has a particular characteristic that gives it an advantage over other
sources, as listed in Table A.
The BesTime algorithm uses the best characteristic of each source to produce an output
signal with greater overall accuracy and stability than any single source. The contribution of
a source is based on its deviation from the weighted average of all the sources. The more
accurate a source, the more weight it has in the final output. Every so urce is under co nstant
evaluation and its contribution subject to periodic adjustment. The output is essentially the
best performance of the best source.
Table A. Timing Source Characteristics
Source Characteristic
Local Oscillator Short term stability
T1 Line Intermediate term stability
1
2
3
External Oscillator Intermediate term stability
GPS Signal Long term stability
5
TimeSource 3000 15
Description
097-72000-02 Issue 6: October 2003
1
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Figure 2. Block Diagram
16 TimeSource 3000
097-72000-02 Issue 6: October 2003
Description
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
Antenna
The antenna housing includes a volute antenna, GPS receiver, amplifier, and intermediatefrequency (IF) downconverter.
The GPS Receiver extracts a clock signal from the GPS satellite signals. The receiver can
process the signals from all satellites in view, while simultaneously using the Earth location
of the receiver and other factors to determine an accurate clock signal.
An amplifier in the antenna provides 23 dB of signal gain.
2
A downconverter converts the L-band GPS signal to IF for long-distance transport on the
coaxial antenna cable. The antenna cable provides 125 mA power from the shelf to the
antenna, and transports GPS satellite IF signals from the antenna to the shelf.
IF Interface
3
An IF interface accepts the signals from the antenna, and provides the clock information to
the BesTime Ensemble Timing Generator.
S
1
Local Oscillator
A digitally controlled, oven-controlled crystal oscillator (OCXO) develops a highly stable
local oscillator signal, independent of factors that exist outside the shelf. This signal is sent
to the BesTime Ensemble Timing Generator.
Clock Extractors
T1 signals (optional) enter on the SPAN IN #1 and #2 wire-wrap pins, and remote oscillator
signals (optional) enter on the A and B REM OSC connectors. From each external signal, a
clock extractor circuit extracts a timing signal, which is sent to the BesTime Ensemble
Timing Generator.
Power Supply
A power converter filters and converts -48 volts dc power supplied to the shelf into the
voltages required by the shelf.
5
TimeSource 3000 17
Description
097-72000-02 Issue 6: October 2003
1
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
NTP TimeServer
The TimeServer is a Simple Network Time Protocol (SNTP) device. The SNTP TimeServer
function is provided via the TimeSource Ethernet interface and associated IP address. User
software requests UTC time of day via NTP protocol. The TimeSource SNTP server
responds with current UTC time. The TimeServer is compatible with the SNTP RFC-1769
format.
To enable the SNTP feature, a password must be entered using the ED-EQPT TL1
command. If a user makes a fourth attempt of an incorrect password entry, the TimeServer
will lock out the user for 1 hour.
Network Time Protocol Password Activation
Use of the Simple Network Time Protocol (SNTP) feature requires activation with a
password. Activation is accomplished through receipt of a Network Time Protocol
Activation Certificate from Symmetricom. This certificate contains the unit purchase order
number, unit model number, unit activation date, unit serial number, and unit activation key.
The unit activation key is the password that enables the SNTP feature. To activate the SNTP
feature, enter the TL l command printed on the activation certificate. Once activated, this
feature will be permanently enabled. To order the SNTP feature, contact the local
Symmetricom sales representative.
BesTime Ensemble Timing Generator
Clock signals from the IF Interface, the local oscillator, the two T1 span lines, and the two
remote oscillators are used as sources by the BesTime algorithms in the BesTime Ensemble
Timing Generator. The signals are analyzed for MTIE, TDEV, and other phase and
frequency characteristics.
The BesTime Ensemble Timing Generator uses mathematical models to analyze each clock.
The ensemble algorithms use the comparisons and analyses to generate a highly stable
timing signal, which uses the best qualities of all inputs.
T1 Outputs
The BesTime Ensemble Timing Generator provides the timing for the T1 timing signal
available at the T1 OUT A and B connectors in a framed, all-ones format, which can be set
to ESF or D4 framing.
Eight Additional T1 Outputs (990-72010-02 Systems Only)
This option provides eight additional T1 outputs at the OPTIONS I/O wire-wrap pins. These
outputs function the same as the standard T1 outputs.
18 TimeSource 3000
097-72000-02 Issue 6: October 2003
Description
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
TOD Output
The BesTime Ensemble Timing Generator provides the timing for the TOD timing signal
available at the RJ-45 connector, which provides time code to devices compatible with NTP
Type 4 or Cisco format.
IRIG-B TOD Outputs (990-72010-05 Systems Only)
This option provides two additional TOD outputs in IRIG-B format at the BNC connectors
on the IRIG-B BNC adapter (secured to the shelf rear panel).
2
The BesTime Ensemble Timing Generator provides the timing for the TOD timing signal,
which provides timing code to devices compatible with IRIG-B.
1 PPS Output
S
1
The BesTime Ensemble Timing Generator provides the timing for the 1 pulse-per-second
timing signal available at the 1 PPS connector, which can be used for application-specific
requirements.
3
10 MHz Output
The BesTime Ensemble Timing Generator provides timing for the 10 MHz timing signal
available at the 10 MHZ connector, which can be used for local cellular frequency or testing
purposes.
Eight Mixed E1/T1 Outputs (990-72010-06 Systems Only)
This feature enables a user to mix any combination of E1 and T1 outputs. A user can also
use any combination of framing. For El, CCS, CAS, CCS with CRC4, and CAS with CRC4
can be used per G.703 table 6. For T1, D4 or ESF can be used per ANSI T1.101. In addition,
there is support for analog (2.048 MHz) per G.703 table 10 and support for synchronization
status messaging (SSM) per TR-33 for E1 and T1.
5
Eight Mixed T1/CCK Outputs (990-72010-07 Systems Only)
This feature enables a user to mix any combination of T1 and CCK outputs. For T1, D4 or
ESF framing can be used per ANSI T 1.101. Support for SSM is per TR-33 for T1.
Composite Clock Outputs (990-72010-03 Systems Only)
This option provides eight composite clock signals available at the OPTIONS I/O wire-wrap
pins.
TimeSource 3000 19
Description
097-72000-02 Issue 6: October 2003
1
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Alarm Interface
The microprocessor delivers alarms to normally open dry-contact type connections. A larms
are also indicated by the front-panel status lamps, and TL1 messages reported via the
communication ports.
Ethernet
TimeSource 3000 has one physical Ethernet port with six virtual ports to carry TL1
commands, responses, and autonomous messages between the TimeSource 3000 and an
external terminal, or an Element Manager, or both. The user can configure the IP address,
subnet mask, and gateway address for the Ethernet ports.
Four ports (5001, 5002, 5003, and 5004) are configured to act as though a serial-port
communication terminal were connected to them. These ports communicate TL1 commands,
responses and autonomous messages.
Two additional ports communicate with Element Managers, which may have NMS,
TimeScan, TimePictra, or similar software. An Element Manager establishes a connection
with one port (5551) for TL1 commands and responses. Another port (5550) establishes a
connection to an Element Manager, sends autonomous messages, and closes the connection
when finished.
Communications Ports
Three RS-232 serial communications ports carry TL1 commands, responses, and
autonomous messages between the TimeSource 3000 and an external terminal.
Passthrough
The Passthrough feature of the TimeSource 3000 allows the unit to front a DCD product to
provide one management interface for a user site. Passthrough allows a user to do the
following:
• Provide a no download exclusion for the Passthrough port
• COM 1 or COM2 is connected to the DCD product
• The user port can be any unused port, including the Ethernet port
• Messages can pass from a user to the DCD product and from the DCD product to a
user through the TimeSource 3000
• The TID (SID for DCD) is used to identify commands that go to the DCD product.
The TimeSource 3000 passes any TID not its own through to the DCD product. In
the reverse direction, all commands received from the DCD product are passed
through to the user.
20 TimeSource 3000
097-72000-02 Issue 6: October 2003
Description
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
Note: The TID of the TL1 command must be the SID of MIS.
• DCD is fully managed except for firmware download.
S
• The Passthrough feature is communicated via TL1 only (ie. no GUI interface).
Figure 3. shows a TimeSource 3000 Passthrough setup.
Figure 3. TimeSource 3000 Passthrough Function
Straight cable
DCD-5X TS-3000
COM 1, 2, or 3
Alarm Programmability
DCDPASSTHRU
COM1 or 2 (COM-1 is
DB-25 and COM-2 is
RJ-45)
2
User port (any port)
DCDUSERPORT
COM 1, 2, 3
IP:5001-5004
3
1
New releases of TimeSource (1.05.03 or higher) allow the user to provision the alarm
escalation parameters that were hardcoded in the previous releases of TS3000.hex. The
defaults for this release remain the same as were previously hardcoded. This feature can be
used to set the programmability for such alarms as GPS, HOLDOVER, SPAN-X, and RO-X.
The TS3000 alarms can be programmed for GPS and HOLDOVER types of events. The
SPAN-X alarms can be programmed for AIS, ERROR, and LOS types of events. The RO-X
alarms can be programmed for ERROR and LOS types of events.
The user can set the parameters for SEVERITY1 and SERAFF1 which initially come into
effect when the condition is detected. The user can also set the parameters for SEVERITY2
and SERAFF2 which come into effect after TIME (another user programmable parameter).
Startup
When the TimeSource starts up, the CRIT lamp lights. The CRIT lamp remains on for
approximately 50 seconds to 60 seconds and then shuts off.
During startup, the TimeSource performs several self-tests to verify the integrity of the
hardware and software. Neither communication nor outputs are possible at this time, and the
CRIT lamp is switched on. Once the self-tests are done, a connection to the system can be
made and the events viewed.
5
TimeSource 3000 21
Description
097-72000-02 Issue 6: October 2003
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Two events are initially provided. These events are:
• "Power Up Restart"
1
• "Settling Period"
In the "Power Up Restart" event, which lasts for approximately 2 minutes, the system does
additional checks and starts all the various tasks within the system.
The "Settling Period" event is an informational message that lasts until the TimeSource’s
BesTime engine reaches the highest possible stable point. The time taken to reach this point
depends on satellite availability, type of oscillator, ambient temperature, etc. and may take
up to 20 hours to clear. Since "Settling Period" is independent of the quality of the output
and is the normal behavior of the system, it is generated as an event rather than an alarm. If
"Settling Period" is not cleared after 24 hours, another "Settling Period" event is generated
as a marker. This is still Non-Service-Affecting.
As soon as the "Power Up Restart" message is cleared, the "BT3 Warmup" event is
generated. This is also an informational message that lasts till the time it takes the system to
acquire the satellites, warm up the oscillator, and start giving out valid outputs. It may take
up to 2 hours for the message to clear, but typically takes approximately 40 minutes. During
the "BT3 Warmup" time, the outputs will generally be squelched. If the outputs are enabled
using the TL1 command
(ED-EQPT::TS3000:ctag:::ALMCOND=ALW;) they may not be within the PRS mask. In
case the system is not able to acquire sufficient number of satellites and/or discipline the
oscillator within 2 hours, the event escalates into a Non Service Affecting Minor alarm.
Once the warm up is complete, the system generates valid outputs and the event is cleared.
Bridging/Holdover Behavior
In the TimeSource 3000, alarms are designed with a built-in hysteresis. This means that an
alarm is not announced as soon as some error condition is detected. There is a preintegration time during which the error must persist in order for the alarm to be announced.
On the flip side, the error must be clear for a certain time for an alarm condition to be
cleared. This ensures that intermittent conditions are not flagged unnecessarily.
During the normal working of the TimeSo urce 3000, it is a very co mmon occurrence that the
GPS satellites may not be visible during certain parts of the day, depending on the
installation of the antenna. This is particularly true with wall and, especially, window
antenna installations. The TimeSource 3600 has been designed to work around this situation.
The TimeSource 3000 enters "Bridging" mode when all satellite locks are lost. There is no
TL1 annunciation that the system has entered "Bridging" mode. This is "Non Service
Affecting" and the outputs are not affected. The system runs of f i ts internal oscillator and the
outputs are kept within the PRS mask by the BesTime engine.
22 TimeSource 3000
097-72000-02 Issue 6: October 2003
Description
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS SSSSS
When "Bridging" mode persists for more than 30 minutes, the system enters "Holdover"
mode and a "Holdover" event is generated. This may or may not affect the outputs
depending on the alarm integration parameters that can be set by the user.
S
The system allows the user to set various parameters for GPS error, Holdover error, and
SPAN error conditions. These parameters are:
• Initial Severity
• Initial Service Affecting state
2
• Integration Time
• Final Severity
• Final Service Affecting state
The system also allows the user to set a parameter to define how outputs should behave in an
alarm condition. Outputs can be set to AIS, Squelch, or SSM on an alarm. Outputs can also
be set to ignore alarm conditions.
When the "Holdover" event is announced, it is announced with the Initial Severity and
Initial Service Affecting state. If the "Holdover" event persists for the length of the
Integration Time, the alarm is escalated to the Final Severity and Final Service Affecting
state.
3
1
The "Holdover" event/alarm is cleared when the satellites are visible again.
Time Figure of Merit
Time Figure of Merit (TFOM) is a moving 24 hour measurement reported in nanosecond
(ns) against an ideal model. TFOM has a frequency component used to measure GPS
wander caused by multipath and a time loop component used to measure long term oscillator
wander.
The TFOM alarm threshold is set to 500 ns and is not user configurable. A TFOM below
500 ns indicates a stable clock well within PRS output performance specifications. A TFOM
between 500 ns and 800 ns is an early warning of a clock becoming unstable and in danger
of going out of PRS specification. When the TFOM exceeds 800 ns, the clock is no longer
meeting the stratum 1 MTIE mask.
TFOM is most useful for installations where the antenna has a limited view to the sky. This
is defined as any installation where fewer than 4 satellites are in view for greater than 1 hour
per day on average. This is typical for installations where the antenna is mounted in a
window or on an outside wall of a building, but can also include rooftop installations with
partial sky view blockage. TFOM’s primary use is to help troubleshoot multipath issues
associated with antenna placement and incorrect latitude, longitude, and/or altitude
(location) data entry.
5
TimeSource 3000 23
Description
097-72000-02 Issue 6: October 2003
1
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
Installations with full view to the sky see 4 satellites 23+ hours a day, seven days a week. It
is relatively easy to filter out multipath signals using multiple satellites and simple voting
schemes. In addition, rooftop antennas are mounted vertically and all signals below the
horizon are obvious multipath interference and can be masked out of the system. With 4
satellites in view, the GPS timing receiver will provide an error-free lock on its location
through an automatic survey function.
With wall/window installations, voting schemes become less effective as the number of
satellites in view drop. Also, wall/window antennas are mounted horizontally and are prone
to seeing multipath signals reflected off nearby structures and the ground. Wall/window
installations also require the manual input of location data, creating the potential for errors
and the need to detect these errors.
The TimeSource has unique algorithms to account for, and defeat, the added multipath
complications and location data entry error possibilities of wall/window antenna
installations. Large amounts of multipath or major errors in location data entry are easier to
identify and are detected over a relatively short period of time. These short-term errors are
normally reported via the TimeSource tracking success rate parameter.
Small amounts of multipath or minor errors in location data entry are difficult to identify
because they mimic a true signal or an expected satellite behavior pattern. Single satellite
reception over limited periods of time complicates the ability for the internal TimeSource
algorithms to filter out these ghost signals and longer periods of time are needed to sort them
out. TFOM tracks and reports these long-term errors.
At time of installation, marginal or unacceptable TFOM readings can indicate the need to
adjust the antenna placement, the mask angle, and/or the location data. Relatively small
changes in the antenna placement can improve the ability of the system to see satellites and
therefore improve performance. The mask angle can be adjusted to block out low er
elevation portions of the sky if there is good visibility at higher elevations, thereby reducing
multipath. Correct location data is very helpful in identifying and tracking satellites.
In addition, a clock may be stable for many weeks, months, or years but could degrade
because of changes in its environment. TFOM is useful in detecting these infrequent subtle
changes including:
• Maturing foliage or seasonal foliage changes
• Installation of new transmitters nearby (i.e. wireless base station)
• New building construction
• Variations in the day-to-day temperature of the CO
24 TimeSource 3000
097-72000-02 Issue 6: October 2003
Description
Engineering & Ordering
This chapter provides antenna
installation guidelines, shelf mounting
configurations, a parts list, and a list of
user-supplied tools required for
installation.
Chapter
2
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Site Survey
Procedure A. Site Survey
Step Action
1 Determine the location of the grounding point for the lightning suppressor. The
lightning suppressor must be located within 15 ft. of th is point. If the grounding
2
point is inside the building, the grounding point must be within 50 cable feet of
where the antenna cable enters the building. Valid lightning suppressor grounding
points are as follows:
• •Valid roof ring ground system
• •Cad weld to building structure steel
• •Central Office ground plate
2 Determine the best location for mounting the antenna. The ideal location is where
the antenna has an unobstructed view of the sky, from the horizon to zenith, for 360°
around the horizon.
A site survey should be performed before ordering the system, as described in Procedure A.
3 Determine the shelf location.
4 Determine the cable length between the antenna, and the lightning suppressor
location determined in Steps 1 and 2.
5 Determine the cable length between the lightning suppressor and the shelf location
determined in Steps 1 and 3.
6 Determine the –48 V power source for the shelf.
7 Determine if 5 MHz signals from a Symmetricom Digital Clock Distributor (DCD)
Shelf will be used as remote oscillator inputs (optional).
End of Procedure
26 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
Lightning Suppressor Guidelines
• Mount the lightning suppressor within 15 feet of a valid, direct, low impedance, low
resistance, earth ground connection point. Valid earth grounds include the roof ring
ground system, building structural steel, or a Central Office ground plate. If the
grounding point is inside the building, mount the suppressor within 50 feet of the
cable entry into the building.
Warning: Metal clamps that form a complete metal circle ar ou nd the antenn a cable or
the cable conduit are not allowed. The ring clamp acts like a choke coil to induce
currents, which resists current flow and hampers proper lightning protection.
Warning: Place the lightning suppressor away from electrical devices or cabling that
may induce arcing.
Note: Keep all impedances as low as possible, otherwise the grounding scheme may be
defeated.
2
3
• Route the ground wire as straight as possible (bends in the ground wire increase
impedance at lightning frequencies), in accordance with local company practices.
2
• Treat all exposed connections with an electrically conductive anti-corrosion
compound (Kopr-Shield or equivalent).
Warning: Avoid small-radius turns and unnecessary turns.
5
TimeSource 3000 27
Engineering and Ordering
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Antenna Location Guidelines
DANGER: Do not select an antenna location that could be an electrical or physical
hazard to work persons or equipment. Avoid proximity to all high-voltage sources. Mount
in an easily maintainable location.
The ideal antenna location provides a clear, unobstructed view of the sky from the zenith to
the horizon line, and 360 degrees around the horizon.
A compromise often must be made between location and satellite field of view. The smaller
2
the field of view, the fewer the number of satellites that can be used in the timing solution
for GPS derived time. With fewer satellites, the TimeSource 3000 may experience GPS
events (temporary loss of contact with four or more GPS signals).
Signals closer to the horizon are often subject to multipath effects, which degrade the timing
solution. The TimeSource 3000 can be set to ignore, or mask, all signals from the horizon to
a chosen angle of elevation (mask angle). (See Figure 4.)
Note: Due to the geometry of the GPS satellite orbits, more satellites are visible in the
direction of the equator than the poles. If possible, place the antenna so that the antenna has a
clear view toward the equator (toward the south in the northern hemisphere, or toward the
north in the southern hemisphere). Up to 60 degrees of arc, centered at the pole, may be
blocked with little effect in the temperate latitudes. This note is less applicable in latitudes
nearer the equator.
Figure 4 Antenna Field of View
28 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
Observe the following guidelines during the placement and installation of the antenna:
• Total of obstructions above the mask angle must not obscure more than 25 percent
of the total field of view (90 degrees of azimuth) (Figure 5).
• No single obstruction may block more than 12.5 percent of the view (45 degrees of
azimuth).
Notes:
1. Place the antenna high enough on the tower that obstructions are below the mask angle;
mount the antenna more than 3 feet away from the tower, and far below the interference
of the antennas at the top of the tower. Tower mounting is the least desirable location
because of the potential for severe multipath, and difficulty in troubleshooting and
maintenance.
2. Place the antenna high enough that the roof structure and tree are below the mask angle,
and the water tower does not block more than 12.5 percent of the sky.
Figure 5 Antenna Location Examples
2
2
3
5
Note: The most important objects are within 1/4 mile (400 yards) of the antenna.
Obstructions may include, but are not limited to, towers, buildings, other construction, trees,
and high-voltage power lines.
• Be aware of transmitting antennas in the area. The direction of transmission, power
level, and frequency may cause interference.
• The minimum horizontal distance from other receiving ante nnas is 3 feet.
TimeSource 3000 29
Engineering and Ordering
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
• The minimum horizontal distance from vertical reflective structures (e.g., heating
ducts, equipment housings, etc.) is twice the height of the structure or 10 feet
(Figure 6).
Figure 6 Sample Rooftop Antenna Mount
2
• The minimum vertical distance above parapets, obstructions, or horizontal metallic
reflective surfaces is 4 feet.
• Do not locate the antenna within 30 degrees azimuth of the transmission direction of
any transmitting antenna (to avoid overpowering the GPS reception, even though
the transmitting antenna may operate at a different frequency).
• Do not locate the antenna underneath high power lines. If this cannot be avoided,
ensure the antenna is placed at least twice as far from the power line as the power
line is high (to avoid danger to personnel and multipath effects).
• Mount the antenna in a location with easy and safe access for future maintenance
purposes.
• Mount the antenna on a mast of 1 inch diameter galvanized metal pipe
(recommended). Do not use metal as a cable conduit.
30 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
Cabling Considerations for Standard Configurations
The antenna assembly uses the same coaxial cable for power and antenna signals. The length
of cable is determined by circumstances of the installation and site.
Cables must be run as straight as possible. All cables should be routed in ac cordance with
local company practices.
Note: Keep all impedances as low as possible, otherwise the grounding scheme may be
defeated.
Observe the following guidelines during the placement and installation of the cables:
• Route cables as straight as possible (bends in the cable increase impedance at
lightning frequencies), in accordance with local company practices.
2
3
• Any opening where conduit enters the building must be waterproofed per local
company practices.
• Treat all exposed connections with an electrically conductive anti-corrosion
compound (Kopr-Shield or equivalent).
Warning: Avoid small-radius turns and unnecessary turns.
2
5
TimeSource 3000 31
Engineering and Ordering
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Antenna Cable Choices
The coaxial cable (060-72010-xx) for antenna-to-lightning suppressor and lightning
suppressor-to-shelf cabling includes RG-59/U cable (20 AWG, 75 ohm coaxial) with male
TNC connectors attached, and are available in the following lengths:
• 10 foot cable (060-72010-01)
• 20 foot cable (060-72010-02)
2
• 50 foot cable (060-72010-05)
• 100 foot cable (060-72010-10)
• 200 foot cable (060-72010-20)
• 300 foot cable (060-72010-30)
• 500 foot cable (060-72010-50)
• 600 foot cable (060-72010-60)
• 800 foot cable (060-72010-80)
• 1000 foot cable (060-72010-99)
Two cables are required: one to connect the antenna to the lightning suppressor and another
to connect the lightning suppressor to the TimeSource 3000 Shelf.
Optionally, one length of coaxial cable may be ordered, which must be cut and prepared
with end-connectors at the point where the suppressor is located.
The following items, which must be ordered separately, are available for this type of
installation:
• TNC connector kit (093-72010-98) includes:
- TNC connectors for RG-59/U cables (8)
- Rubber boots (8)
- TNC adapter connectors (2)
• TNC crimp tool (154-00023-01)
32 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
Cabling Considerations for Optional Configurations
IRIG-B TOD (990-72010-05 Systems Only)
If using the IRIG-B TOD outputs (990-72010-05 TimeSource 3000 System), right-angle
BNC connectors are provided to prevent small radius turns in the IRIG-B TOD cables. The
right-angle BNC connectors may be attached to the IRIG-B BNC adapter (also provided)
BNC connectors, to direct the cables from the shelf as desired.
For each IRIG-B TOD output, a customer-supplied cable with BNC connectors on each end
is installed between the adapter and the network elements requiring IRIG-B TOD timing.
2
Remote Oscillator Cabling
If 5 MHz signals from a DCD Shelf are used as remote oscillator inputs, a 5 MHz Isolator
Kit must be used between the DCD Shelves listed below and the TimeSource 3000 Shelf.
Refer to Field Service Bulletin FSB 098-40620-19R2 for details.
Shelf Isolator Kit part #
DCD-ST2 093-45110-06
DCD-519 093-45110-06
DCD-419 093-45110-07
DCD-521 (not required with DCD-521/C) 093-45110-06
DCD-523 (backplane Revision D or earlier) 093-45110-06
The 5 MHz Isolator Kit consists of the isolation module, associated screws, two 2 foot long
RG-59/U, 75 ohm coax cables, and two 6 foot lengths of 50 ohm cables. Two foot long
cables have BNC connectors at both ends for connecting to all shelves except for the DCD419 (Rev. D or later), or SMB-to-BNC connectors for connecting to the DCD-419.
3
5
2
TimeSource 3000 33
Engineering and Ordering
097-72000-02 Issue 6: October 2003
2
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
The isolation module is used to reduce potential noise coupling, and match impedances in
the cables between the DCD master shelf and TimeSource 3000. It also converts the 5 MHz
output from a square wave to a sine wave.
The isolation module is installed between the TimeSource 3000 Shelf and the DCD master
shelf. T o connect between th e module and the DCD Shelf , two 2 foot long RG-59/U, 75 ohm
coax cables are provided.
If an isolator kit is not required, the following cable options are available:
• Remote oscillator cable kit (093-72001-01) includes:
- Remote oscillator cables (2) (160-00201-06)
- Right-angle BNC connector adapters (4)
• Remote oscillator cable (160-00201-06)
34 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
RJ-45–to–DB-25 TOD Converter
If using time-of-day (TOD), and the device receiving the time code accepts an RS-232
signal instead of an RS-422 signal (for example, a Cisco router), an RJ-45-to-RS-232 TOD
Converter Kit is required (ordered separately, part number 093-72000-98).
The RJ-45-to-DB-232 TOD Converter Kit consists of a mounting plate with a female RJ-45
connector, a female DB-25 connector, a TOD converter, and two screws.
Install the converter anywhere (for example, on unused space on a rack) within 1,000 cable
feet of the TimeSource 3000 shelf, and within 50 cable feet of the device receiving the time
code.
The user must supply two cables. One cable is a Category 5 four-pair RS-422 cable, 1,000
feet maximum, with RJ-45 connectors on each end. Route this cable between the
TimeSource 3000 Shelf and the converter.
2
2
The other cable is an RS-232 data communications cable, 50 feet maximum, with a 25-pin
male D-type connector and another connector determined by the device receiving the time
code. Route this cable between the converter and the device receiving the time code.
3
5
TimeSource 3000 35
Engineering and Ordering
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Antenna-to-Shelf Cabling
Figure 7 shows the antenna-to-shelf cabling.
Notes:
1. Recommended grounding points:
a. Valid roof ring ground system.
2
2. If desired, a single cable run can be made from the antenna to the TimeSource 3000
Figure 7 Antenna-to-Shelf Cabling
b. Cad weld to building structural steel.
c. Central office ground plate within 50 feet of antenna cable entrance into building.
Shelf. The cable can then be cut at the lightning suppressor location, and TNC
connectors attached to the cut ends of the cable. (The "xx" in the part number indicates
the cable length - see Cabling Considerations for Standard Configurations on page 34.)
36 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
Shelf Considerations
Rack Mounting
Position the mounting ears, as shown in Figure 8, for flush mounting or 5 inch offset
mounting in a 19 inch rack (Figure 8A, and Fig ure 8C), or for flush mounting or 5 inch
offset mounting in a 23 inch rack (Figure 8B and Figure 8D). Leave one RU (1.75 inches) of
air space above the TimeSource 3000 Shelf for proper ventilation. Mount the shelf in the
rack according to standard company practices.
Note: T wo screws can be used in both mounting ears if the holes in the rack are spaced 1.75
inches apart.
Figure 8 Rack Mounting Options
2
3
2
5
TimeSource 3000 37
Engineering and Ordering
097-72000-02 Issue 6: October 2003
Systems
2
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
The TimeSource 3000 Systems available are listed below.
With Two T1 Outputs
This system (990-72010-01) includes:
• TimeSource 3000 Shelf (090-72000-01)
• TimeSource 3000 card (090-72010-0 1)
• IF antenna assembly (090-72010-97)
• Antenna mounting kit (093-00001-01)
• Hardware kit (093-72010-97) includes:
- Lightning suppressor (143-00018-01)
- Mounting bracket for lightning suppressor (070-00300-02)
- PC-to-Craft port cable (060-00067-01)
- Right-angle TNC connector adapter (121-00569-01)
• System software (992-72010-05 or later)
38 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
With Ten T1 Outputs
This system (990-72010-02) includes:
• TimeSource 3000 Shelf (090-72000-01)
• TimeSource 3000 card with expansion T 1 outputs (090-72010-02)
• IF antenna assembly (090-72010-97)
• Antenna mounting kit (093-00001-01)
• Hardware kit (093-72010-97) includes:
- Lightning suppressor (143-00018-01)
- Mounting bracket for lightning suppressor (070-00300-02)
- PC-to-Craft port cable (060-00067-01)
- Right-angle TNC connector adapter (121-00569-01)
• System software (992-72010-05 or later)
2
2
3
5
TimeSource 3000 39
Engineering and Ordering
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
With Two T1 and Eight Composite Clock Outputs
This system (990-72010-03) includes:
• TimeSource 3000 Shelf (090-72000-01)
• TimeSource 3000 card with expansion composite clock outputs (090-72010-03)
• IF antenna assembly (090-72010-97)
2
• Antenna mounting kit (093-00001-01)
• Hardware kit (093-72010-97) includes:
- Lightning suppressor (143-00018-01)
- Mounting bracket for lightning suppressor (070-00300-02)
- PC-to-Craft port cable (060-00067-01)
- Right-angle TNC connector adapter (121-00569-01)
• System software (992-72010-05 or later)
40 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
With Two T1 and Two IRIG-B TOD Outputs
This system (990-72010-05) includes:
• TimeSource 3000 Shelf (090-72000-01)
• TimeSource 3000 card with IRIG-B TOD outputs (090-72010-05)
• IRIG-B BNC adapter (090-72100-06)
• Two right-angle BNC connectors (121-00530-01)
• IF antenna assembly (090-72010-97)
• Antenna mounting kit (093-00001-01)
• Hardware kit (093-72010-97) includes:
- Lightning suppressor (143-00018-01)
- Mounting bracket for lightning suppressor (070-00300-02)
- PC-to-Craft port cable (060-00067-01)
- Right-angle TNC connector adapter (121-00569-01)
• System software (992-72010-05 or later)
2
2
3
5
TimeSource 3000 41
Engineering and Ordering
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
With Two T1 and Eight Mixed E1/T1 Outputs
This system (990-72010-06) includes:
• TimeSource 3000 Shelf (090-72000-01)
• TimeSource 3000 card with expansion mixed E1/T1 outputs (090-72010-06)
• Antenna (090-72010-97)
2
• Antenna mounting kit (093-00001-01)
• Hardware kit (093-72010-97) includes:
- Lightning suppressor (143-00018-01)
- Lightning suppressor mounting bracket (070-00300-02)
- Craft port-to-PC communication cable (060-00067-01)
• System software (992-72010-05 or later)
42 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
With Two T1 and Eight Mixed T1/CCK Outputs
This system (990-72010-07) includes:
• TimeSource 3000 Shelf (090-72000-01)
• TimeSource 3000 card with expansion mixed T1/CCK outputs (090-72010-07)
• Antenna (090-72010-97)
• Antenna mounting kit (093-00001-01)
• Hardware kit (093-72010-97) includes:
- Lightning suppressor (143-00018-01)
- Lightning suppressor mounting bracket (070-00300-02)
- Craft port-to-PC communication cable (060-00067-01 )
• System software (992-72010-05 or later)
2
2
3
5
TimeSource 3000 43
Engineering and Ordering
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
User-Supplied Tools and Materials
For Antenna Installation
Ensure that the user-supplied tools and materials listed below are on hand for installation of
the antenna.
• 1 inch diameter galvanized metal pipe, used as a mast to mount the antenna. Mast
should be long enough to position the antenna above any metal object on the roof.
2
• Screws to attach the lightning suppressor mounting plate.
• Plumb line or bubble level.
• Nonmetallic junction box for lightning suppressor (optional if lightning suppressor
mounted indoors).
• 1 inch diameter PVC pipe as conduit for outdoor cables.
• PVC fittings appropriate to the installation and cable route.
• Appropriate tools and materials for cutting, shaping, and connecting PVC pipe.
• 6 AWG ground wire.
• Spade lugs for 6 AWG ground wire.
• Crimp tool for 6 AWG spade lugs.
• Hardware to attach the ground wire to a valid earth ground.
• Fire-stopping material to seal conduit hole in roof or wall.
• Electrically conductive antioxidant compound (Kop r-Shield or equivalent) to coat
exposed connections to prevent oxidation.
• Tool to cut cable, if installation requires custom lengths of cable.
44 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
SSSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS
Outputs, Power, and Miscellaneous
• RG-58 coaxial cable for 1 PPS, 10 MHZ outputs (if used)
• Ethernet 10BaseT cable for Ethernet port (if used)
• Category 5 four-pair RS-422 cable, with RJ-45 connector for the TOD output, RS-
422-to-RS-232 TOD converter (if used)
• RS-232 cable with DB-25 connector for the RS-422-to-RS-232 TOD converter (if
used)
• RS-232 cable with DB-9 connector for COM2 port (if used)
• 6 AWG ground wire
• 16 AWG green insulated ground wire
2
2
• 16 AWG red insulated wire
• 16 AWG black insulated wire
• T1 cables
For Shelf Installation
Ensure that a Phillips-head screwdriver is on hand for installing the TimeSource 3000 Shelf
in a rack.
3
5
TimeSource 3000 45
Engineering and Ordering
097-72000-02 Issue 6: October 2003
2
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
46 TimeSource 3000
097-72000-02 Issue 6: October 2003
Engineering and Ordering
Installation
This chapter provides the steps
required for installation and
power-up.
Chapter
3
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Unpacking
Install the TimeSource 3000, using steps in the order given in this chapter. If any difficulties
are encountered during the installation process, contact Symmetricom's Customer Technical
Assistance Center (CT AC). Refer to the Technical Assistance section of the Troubleshooting
chapter for telephone numbers.
CTAC includes Product Technical Support for technical information, and Customer Service
for information about an order, RMAs, and other information.
Warning: When handling electronic equipment, use local office procedures regarding
electrostatic discharge (ESD), including:
• Use grounded wrist straps connected to equipment frame ground when
handling cards.
• Store cards only in antistatic packaging provided by the factory.
Note: Save packing material. All equipment returned must be packed in the original packing
material. Contact Customer Service if additional packaging is needed.
Unpack equipment carefully; check for completeness against the purchase order. Notify
Symmetricom if items are missing.
Inspect equipment for shipping damage, including bent or loose hardware, and broken
connectors.
If equipment was damaged in transit, contact Customer Service to request an RMA, and
notify the carrier.
48 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Antenna
Installation procedures are to follow local company procedures and the Installation Job
Specification.
Procure the user supplied tools and materials listed in the engineering and ordering chapter.
Prior to installing the antenna, the site, antenna location, lightning suppressor location, cable
route, and all other details should be planned.
To install the antenna, refer to Figures 6 and 9, and perform Procedure B.
Warning: Ensure that the lightning suppressor is placed away from electrical devices
or cabling that may induce arcing.
2
3
3
5
TimeSource 3000 49
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Figure 9 Antenna-to-Shelf Cabling
3
50 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure B. Antenna Mounting and Cable Connection
Step Procedure
1 Attach the antenna mounting bracket to a pipe (1 in. diameter) or a wood post.
• If mounting the bracket to a pipe, slide the two V-bolts over the pipe, and through the
mounting bracket slots; then place the provided four washers and four nuts over the Vbolts, against the mounting bracket. Leave the V-bolts loose enough to allow for final
adjustments.
2
3
• If mounting the bracket to a wood post, use the provided two self-tapping screws in two
diagonally positioned mounting bracket slots, and attach to the post.
5
3
TimeSource 3000 51
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure B. Antenna Mounting and Cable Connection (continued)
Step Procedure
2 Slide the antenna bolts through the holes in the mounting bracket, then attach the antenna
to the bracket, using the provided three nuts and three lockwashers.
3
3 Using a plumb line or bubble level, ensure the antenna is within 5° o f vertical (perpendicular
to the horizon), and tighten the mounting bracket bolts.
4 Bolt the lightning suppressor mounting plate to a flange that is attached to a valid earth
ground. The roof ring ground system, a Central Office grounding plate, and building
structural steel are examples of valid earth ground points. If the mounting plate cannot be
bolted to a valid earth ground, bolt the mounting plate to a point within 15 ft. of the chosen
valid earth ground. If the mounting plate is to be installed in a nonmetallic junction box,
perform the installation, and bolt the assembly near the chosen valid earth ground.
52 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure B. Antenna Mounting and Cable Connection (continued)
Step Procedure
5 Slide the longer bolt of the lightning suppressor through the D-hole, and attach with a nut
and a washer (provided).
2
3
6 Install 1 in. nonmetallic conduit from the antenna to the lightning suppressor, and from the
lightning suppressor to the cable entrance into the building
7 Install a user-supplied bracket, preferably non-metallic, to support the vertical section of
conduit to the antenna.
8 Connect a cable to the antenna, route the cable through the conduit, and connect the cable
to the lightning suppressor.
9 Connect a cable to the lightning suppressor, route the cable through the conduit into the
building, and route the cable through the building to the TimeSource 3000 Shelf location.
10 If the lightning suppressor was not mounted directly to a valid earth ground, crimp a length
of 6 AWG round cable to the two-hole terminal, slide the terminal over two of the three
threaded posts on the lightning suppressor mounting plate, and attach the terminal to the
mounting plate with two KEPS nuts. Use the two posts that allow the least bending of the 6
AWG ground cable.
5
3
11 Attach the other end of the cable to a valid earth ground.
12 Install fire-stopping material in all holes opened in the roof and/or walls during this
procedure.
TimeSource 3000 53
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure B. Antenna Mounting and Cable Connection (continued)
Step Procedure
13 Check all connections for tightness to prevent arcing and intermittent operation.
14 Coat all exposed connectors with an electrically conductive antioxidant compound (e.g.
Kopr-Shield spray).
End of Procedure
3
54 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Shelf
Rack Mounting
Position the mounting ears, as shown in Figure 10, for flush mounting or 5 inch offset
mounting in a 19 inch rack (Figure 10A, and Figure 10C), or for flush m ounting or 5 inch
offset mounting in a 23 inch rack (Figure 10B and Figure 10D). Leave 1 RU (1.75 inches) of
air space above the TimeSource 3000 Shelf for proper ventilation. Mount the shelf in the
rack according to standard company practices.
Note: T wo screws can be used in both mounting ears if the holes in the rack are spaced 1.75
inches apart.
Figure 10 Rack Mounting Options
2
3
5
3
TimeSource 3000 55
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Power and Signal Cabling
Warning: The circuitry on the plug-in circuit board is subject to electrostatic
discharge (ESD) damage. Be sure to wear an ESD wrist strap when making
connections to the rear panel. Failure to observe this warning may result in equipment
damage.
Warning: The faceplate on the card contains a plastic overlay bonded to the metal
plate with an adhesive. The overlay is an integral part of the ESD protection. Do not
pierce, peel, or otherwise violate the integrity of the overlay. Failure to observe this
warning may result in equipment damage.
The Craft connection is made at the shelf front panel. All other connections are made at the
shelf rear panel.
Figure 11 shows the rear and front panel connectors. All connectors can be located using
these illustrations.
3
56 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Figure 11 Rear and Front Panel Connectors
2
3
5
3
TimeSource 3000 57
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Frame Ground
Frame ground connections are made on power terminal blocks TB1 and TB2. Refer to
Figure 11 for the location of the terminals on the rear of the shelf, and refer to Figure 12 for
the terminal connections.
Figure 12 Battery Connections
3
Remove the protective covers from the terminal blocks.
Ensure the frame ground wires are long enough to reach from the shelf rear panel to the
frame ground connection. Use one 16 AWG (1.47 mm) green insulated wire to connect the
terminal of power terminal block TB1 to the fra me ground, an d use another 16 AWG
(1.47 mm) green insulated wire to connect the terminal of TB2 to frame ground.
Make the ground connection, following one of the methods described below, depending on
whether a ground rod is installed:
58 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
With ground rod:
Solder the connection to the 6 AWG frame ground rod that is run vertically on each side of
the rack, if provided. Two methods are acceptable:
• Crimp an appropriate-size spade lug to the 16 AWG wire, bend the lug around the 6
AWG rod, and solder.
• Strip enough insulation from the 16 AWG wire to permit three complete turns
around the 6 AWG rod and solder.
Note: When soldering, use a 25 watt soldering iron to ensure the 6 AWG rod is heated
2
sufficiently to prevent a cold solder connection
Without ground rod:
Crimp the supplied spade lug to the 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 prope r
conductivity. Coat the connection with an electrically conductive antioxidant compound, for
example, Kopr-Shield spray.
Crimp the supplied spade lug to the other end of the 16 AWG wire, and connect it to the
FRM terminals on TB1 and TB2 (Figure 12).
.
3
3
5
TimeSource 3000 59
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Power
Warning: This equipment is intended for installation in a restricted access location.
Power source protective fusing must be provided as part of the installation.
Caution: Ensure the fuses in the fuse panel which will be used to power the TimeSource
3000 Shelf are removed before connecting power.
Note: Input power is reverse polarity protected; there are no user replaceable fuses.
Power connections are made on power terminal blocks TB1 and TB2. Refer to Figure 11 for
the location of the terminals on the rear of the shelf, and refer to Figure 12 for the terminal
connections.
Ensure the power wires are long enough to go from the shelf rear panel to the office battery
source connection.
Use 18 AWG stranded wire to connect -48 volts from office battery A to the -48V A
terminal on TB1. Connect office battery A return to the RTN A terminal on TB1.
3
Use 18 AWG stranded wire to connect -48 volts from office battery B to the -48V B
terminal on TB2. Connect office battery B return to the RTN B terminal on TB2.
Replace the protective covers on the terminal blocks.
Caution: Do not apply the office battery to the TimeSource 3000 at this time.
Note: Two separate office battery supplies (battery A and battery B) are recommended. If
separate office battery supplies are not available, connect a single office battery to both inputs
(TB1 and TB2) to avoid a standing battery-failure alarm.
60 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Alarms Output
If using the alarms output, connect the office alarms to the critical (CR), major (MJ), and
minor (MN) wire-wrap pins. See Figure 11 for the location of the alarm pins, and Figure 13
for the connections.
Connect at the upper group of pins (AUD) for audible alarms and to the lower group of pins
(VIS) for visible alarms. Connect the alarm circuit between the NO and C pins for normally
open contacts, or between the NC and C pins for normally closed contacts. If required, use
the lower group of pins (VIS) to connect to the remote telemetry equipment.
2
Figure 13 Alarm Connections
3
GPS Antenna
Use the supplied 90 degree adapter to connect the coaxial cable from the lightning
suppressor to the TNC connector labeled GPS ANT. Refer to Figure 11 for the connector
location.
5
3
TimeSource 3000 61
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Additional T1 Outputs
If using the additional T1 outputs, connect the optional eight T1 outputs at the I/O Options
wire-wrap pins. See Figure 11 for the connector location, and Figure 14 for the connections.
The additional T1 outputs option is indicated by the 72010-02 part number on the shelf front
panel.
Figure 14 Eight T1, Mixed E1/T1, Mixed T1/CCK, and Composite Clock Connections
3
Composite Clock (CCK) Outputs
If using the optional composite clock outputs, connect the composite clock outputs from the
I/O Options wire-wrap pins to network elements requiring composite clock timing. Refer to
Figure 11 for the connector location and Figure 14 for the connections. The CCK outputs
option is indicated by the 72010-03 part number on the shelf front panel.
62 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Mixed E1/T1 Outputs
If using the additional El/T1 outputs, connect the optional eight E1/T1 outputs at the I/ O
Options wire-wrap pins. See
connections. The additional El/T1 outputs option is indicated by the 72010-06 part number
on the shelf front panel.
Figure 11 for the connector location, and Figure 14 for the
Mixed T1/CCK Outputs
If using the additional T1/CCK outputs, connect the optional eight T1/CCK outputs at the
I/O Options wire-wrap pins. See Figure 11 for the connector location, and Figure 14 for the
connections. The additional T1/CCK outputs option is indicated by the 72010-07 part
number on the shelf front panel.
2
IRIG-B TOD Outputs
If using the optional IRIG-B TOD outputs, connections are made at the IRIG-B BNC
adapter which is secured to the rear of the shelf. See
and Figure 15 for the connections. The IRIG-B TOD outputs option is indicated by the
72010-05 part number on the shelf front panel.
Follow Procedure C to install the IRIG-B BNC adapter, and make the IRIG-B TOD
connections.
Figure 11 for the connector locations,
3
3
5
TimeSource 3000 63
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Figure 15 IRIG-B TOD BNC Output Connections
3
64 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure C. IRIG-B TOD Output Installation
Step Procedure
1 Position the IRIG-B adapter onto the rear of the shelf so that the OPTIONS I/O wire-wrap
pins project through holes in the adapter card.
2 Secure the adapter onto the shelf, using the four screws integral to the adapter (see
Figure
3 To prevent small radius turns in the IRIG-B TOD output cables, secure the provided right-
angle BNC connectors to the adapter BNC connectors, to direct the cables from the shelf as
desired.
4 Connect the IRIG-B TOD outputs from the BNC connectors on the IRIG-B adapter to
network elements requiring IRIG-B TOD timing.
15).
2
End of Procedure
3
3
5
TimeSource 3000 65
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Remote Oscillator Inputs
If using the remote oscillator inputs, follow the instructions below.
Refer to the Engineering and Ordering chapter to determine if an isolator kit is required.
For the connection between the TimeSource 3000 Shelf and the isolation module, use the
provided two 6 foot lengths of 50 ohm coax cables. If the TimeSource 3000 Shelf is not
collocated with the DCD Shelf, and longer cables are required, these must not exceed 50
feet, and are to be user-supplied.
Note: The isolation module must be mounted on the rack, in close proximity to the DCD
Shelf, whether or not the TimeSource 3000 is installed in a collocated or non-collocated
location from the DCD Shelf. Attaching the isolation module (to the rack) grounds the
module to rack frame ground. Grounding the module to rack frame ground is required if the
TimeSource 3000 is located at a distance less than 6 feet from the DCD Shelf.
3
66 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
DCD Shelf with Isolation Module
To install the isolation module, perform Procedure D.
Procedure D. Isolation Module Installation
Step Procedure
1 On the rear of the DCD rack, check either side of the DCD Shelf, directly above or below the
shelf, for a location to mount the isolation module. Mount to the rack, using the two provided
screws.
Note: Due to distance constraints, the module must be placed no more than 2 ft. from the
following connectors:
• OSC A/B OUT connectors on the rear of the DCD-519 and DCD-523 (Rev. D or earlier)
master shelves
• 5 MHz OUTPUT A/B connectors on the DCD-ST2 master shelf
• J35 and J36 connectors on the DCD-419 master shelf (Rev. D or later)
2
3
2 Use the provided 2 ft. coax cable to connect from the appropriate A connector on the DCD
Shelf backplane to the TO DCD SHELF end of the isolation module (refer to Table B and
Figure 16).
3 Use the 6 ft. coax cable, and connect from the REM OSC A connector on the TimeSource
3000 Shelf to the TO LPR end of the isolation module (refer to Figure 16).
Note: To provide support and minimize cable clutter, route cable to the right or left, and
secure to the cable support bar, using tie wraps.
3
End of Procedure
5
TimeSource 3000 67
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Table B. DCD Connections to the TimeSource 3000
From DCD Shelf
DCD
Shelf Type
DCD-ST2 J24 5 MHZ OUTPUT A REM OSC A
DCD-419 J35 NOT LABELED REM OSC A
DCD-523 J61 OSC A OUT REM OSC A
DCD-519 J44 OSC A OUT REM OSC A
Connector Label
J25 5 MHZ OUTPUT B REM OSC B
J36 NOT LABELED REM OSC B
J62 OSC B OUT REM OSC B
J45 OSC B OUT REM OSC B
To TimeSource 3000
Connector
3
68 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Figure 16 DCD Shelf, Isolation Module, and TimeSource 3000 Connections
2
3
5
3
TimeSource 3000 69
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
DCD Shelf without Isolation Module
If an isolation module is not required, use two 50 ohm coax cables to make the connections
to the DCD Shelf. If longer cables are required, these must not exceed 50 feet, and are to be
user-supplied.
Source Other than DCD Shelf
If an isolator kit is not required, connect an RG-59/U coaxial cable from a 5 MHz or 10
MHz remote oscillator to the connector labeled REM OSC A. Connect another RG-59/U
coaxial cable from a remote oscillator of the same frequency to the connector labeled REM
OSC B. Both remote oscillators must be the same frequency, and a minimum of Stratum 2
(rubidium oscillator) quality. See
Figure 11 for the connector locations.
1 PPS Output
If using 1 PPS output, connect an RG-58 coaxial cable from the connector labeled TTL PPS
to the equipment that will use the 1 pulse-per-second TTL output signal. See
the connector location.
Figure 11 for
3
10 MHz Output
If using 10 MHz output, connect an RG-58 coaxial cable from the connector labeled 10MHz
to the equipment that will use the 10 MHz output signal. See
location.
Ethernet
Connect a user-supplied Ethernet cable from the network to the 10base-T Ethernet connector
labeled E-NET. See
pinouts.
Table C. Ethernet 10base-T RJ-45 Connector Pinouts
Pin Signal Abbreviation Direction
1 Transmit data + TXD + From TimeSource 3000
2 Transmit data – TXD – From TimeSource 3000
3 Receive data + RXD + To TimeSource 3000
4 — — —
Figure 11 for the connector location, and Table C for the connector
Figure 11 for the connector
5 — — —
6 Receive data – RXD – To TimeSource 3000
7 — — —
8 — — —
70 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Time of Day Output
If using time of day (TOD) output, connect the TOD output at the RJ-45 connector labeled
TOD. See Figure 11 for the connector location, and Table D for the connector pinouts.
Table D. TOD Connector Pinouts
Pin Signal Abbreviation Direction
1 1 pps A TOD PPS + From TimeSource 3000
2 1 pps B TOD PPS – From TimeSource 3000
3 12 V power source TOD P12V —
4 Receive data B TOD RXD – To TimeSource 3000
5 Receive data A TOD RXD + To TimeSource 3000
2
6 Circuit ground TOD GND —
3
7 Transmit data A TOD TXD + From TimeSource 3000
8 Transmit data B TOD TXD – From TimeSource 3000
Note: Pins not listed are reserved for future use
If the device receiving the time code (for example, Cisco router) accepts an RS-232 cable
instead of an RS-422 cable, follow Procedure E to install the RJ-45-to-DB-25 TOD
converter.
Note: Before performing Procedure E, ensure that the appropriate Cisco router or NTP Type
4 compatible device is installed, and power applied, per manufacturer's instructions.
5
3
TimeSource 3000 71
Installation
097-72000-02 Issue 6: October 2003
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure E. RJ-45–to–DB-25 TOD Converter Installation
Step Procedure
1 Secure the provided mounting plate to the RJ-45–to–DB-25 TOD converter, using the two
provided screws. The plate may be attached to the top or front of the converter, depending
on the desired surface (for example, a rack or cabinet) to which the converter will be
mounted (see Figure 17).
Notes:
1. Due to distance constraints, the converter must be placed no more than 1000 ft. from the
TimeSource 3000 Shelf, and no more than 50 ft. from the device receiving the time code.
2. The converter dimensions are 3 in. by 2.5 in by 1 in.
3. The mounting plate dimensions are 3 in. by 2 in.
2 Secure the converter to the desired surface, using the slots in the plate and customer-
supplied bolts.
3 Install a Category 5 four-pair RS-422 cable, with RJ-45 connectors on each end, between
the TimeSource 3000 Shelf and the converter (see Figure 18).
4 Install an RS-232 cable, with DB-25 connectors on each end, between the converter and th e
device receiving the time code (see Figure 18). See Table E for the DB-25 connector
pinouts.
End of Procedure
72 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Figure 17 RS-422 to RS-232 TOD Converter Mounting Plate
2
3
Figure 18 RJ-45 to DB-25 TOD Converter Connections
5
3
TimeSource 3000 73
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Table E. Converter DB-25 Connector Pinouts
Pin Signal
1 Frame ground
3 Data output (RS-232)
5 1 pps (RS-232)
7 Signal ground
Note: Pins not listed are reserved for future use.
3
74 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
T1 Reference Inputs (Optional)
Warning: Because the T1 input circuits do not provide lightning protection, do not
connect the T1 input line directly to an outside facility. Failure to observe this warning
may result in equipment damage.
T1 reference sources, traceable to an independent Stratum 1 source, can be connected to
further increase holdover stability, or to be monitored by the TimeSource 3000. In either
case, connect the cables to the wire-wrap pins labeled SPAN IN A and SPAN IN B. Connect
the tip wire to the pin labeled T, the ring wire to the pin labeled R, and the shield (if
connected at the TimeSource 3000) to the pin labeled S. See Figure 11 for the location of the
connectors and pins, and Figure 19 for the wire-wrap connections.
Note: The shield pin is capacitively coupled to ground, therefore, the shield must be
connected at the source end. The shield may also be connected at the TimeSource 3000 end
for additional longitudinal noise protection.
2
3
Figure 19 T1 Input Connections
5
3
TimeSource 3000 75
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
T1 Synchronization Outputs
Warning: Because the T1 output circuits do not provide lightning protection, do not
connect the T1 output line directly to an outside facility. Failure to observe this
warning may result in equipment damage.
Connect the T1 synchronization outputs at the wire-wrap pins labeled T1 OUT A and T1
OUT B. Connect the tip wire to the pins labeled T, the ring wire to the pins labeled R, and
the shield to the pins labeled S. See Figure 11 for the location of the pins, and Figure 20 for
the connections.
The shield pin is provided to ground the cable shield at the shelf, if required. Normally, the
shield is grounded at the source. Grounding the shield at both ends is not recommended.
Figure 20 T1 Output Connections
3
76 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Communication Port 1
To provide an RS-232 link for TL1 command access to the TimeSource 3000, connect to
port 1 at the female 25-pin D connector labeled COM 1. See Figure 11 for the location of the
connector. See Table F for the connector pinouts.
The COM 1 connector transmits data on pin 2, and receives data on pin 3. Be sure the other
equipment receives data from the transmitting pin, and transmits data to the receiving pin.
Table F. COM1 Pinouts
2
Pin Signal Abbreviation Direction
2 Transmit data TXD From TimeSource 3000
3 Receive data RXD To TimeSource 3000
4 Request to send RTS From TimeSource 3000
5 Clear to send CTS To TimeSource 3000
6 Data set ready DSR To TimeSource 3000
7 Signal ground GND —
20 Data terminal ready DTR From TimeSource 3000
Note: Pins not listed are reserved for future use
3
5
3
TimeSource 3000 77
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Communication Port 2
To provide an RS-232 link for TL1 command access to the TimeSource 3000, connect to
port 2 at the female RJ-45 connector labeled COM2. See Figure 11 for the location of the
connector, and Table G for the connector pinouts.
The COM2 connector transmits data on pin 2, and receives data on pin 3. Be sure the other
equipment receives data from the transmitting pin, and transmits data to the receiving pin.
Table G. COM2 Pinouts
Pin Signal Abbreviation Direction
2 Transmit data TXD From TimeSource 3000
3 Receive data RXD To TimeSource 3000
5 Signal ground GND —
6 Data terminal ready DTR From TimeSource 3000
7 Clear to send CTS To TimeSource 3000
3
8 Request to send RTS From TimeSource 3000
Note: Pins not listed are reserved for future use.
78 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Craft Port
To provide an RS-232 link for TL1 command access to the TimeSource 3000, connect to the
craft port at the female RJ-45 connector labeled Craft on the front panel. A Craft-port-to-PC
cable is supplied with the TimeSource 3000 for making this connection. See Figure 11 for
the location of the connector, and Table H for the connector pinouts.
The Craft connector transmits data on pin 2, and receives data on pin 3. Be sure the other
equipment receives data from the transmitting pin, and transmits data to the receiving pin.
Table H. Craft Pinouts
Pin Signal Abbreviation Direction
2 Transmit data TXD From TimeSource 3000
3 Receive data RXD To TimeSource 3000
5 Signal ground GND —
6 Data terminal ready DTR From TimeSource 3000
Note: Pins not listed are reserved for future use.
2
3
3
5
TimeSource 3000 79
Installation
097-72000-02 Issue 6: October 2003
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Power-Up
To power the TimeSource 3000, follow the steps in Procedure F. Before starting this
procedure, be sure the antenna, shelf, and all connections appropriate for this installation
have been installed, and that the host computer is set to communicate with the TimeSource
3000.
Procedure F. Power-Up
Step Procedure
Test Equipment:
• Grounding wrist strap
• Digital multimeter (Fluke 77 or equivalent)
• Laptop computer with communications software (e.g., Windows Hyperterminal, ProComm Plus,
CrossTalk)
1 On the computer connected to the TimeSource 3000, start a VT100 terminal mode session
via communication software that supports the Y-modem protocol (such as Hyperterminal, or
a commercial package such as PROCOMM PLUS or CrossTalk).
2 On the computer connected to the TimeSource 3000, set the communication software to
communicate with the port that is connected to the TimeSource3000.
3 On the computer connected to the TimeSource 3000, set the RS-232 communication
parameters to 8 data bits, no parity bit, 1 stop bit, and 9600 baud.
4 On the computer connected to the TimeSource 300 0, conn ect th e computer communication
port to the COM1, COM2, or Craft port on the TimeSource 3000. A craft port-to-PC
communication cable is provided in the hardware kit for this purpose.
5 Ensure that the TimeSource 3000 plug-in card is not installed in the shelf.
6 Ensure that all fuses that supply power to the TimeSource 3000 Shelf are removed from the
fuse panel.
7 At the shelf end of the battery leads, use the multimeter to measure the volt age between the
following:
Test Point Test Point Result
–48V A lead –48V B lead 0 V
–48V A lead TB1: RTN A 0 V
–48V A lead TB1: FRM 0 V
–48V B lead TB2: RTN B 0 V
–48V B lead TB2: FRM 0 V
8 Attach a grounding wrist strap to the wrist, and plug the other end into the ground jack at t he
upper-right corner of the front of the plug-in card.
9 Pull out the latching levers at each end of the front panel of the TimeSource 3000 card so
that the levers are pointing directly out from the front panel.
10 Push the card into the shelf until the latching levers begin to move in.
80 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
11 Push the latching levers flat against the front panel to complete the card insertion.
12 Tighten the knurled screw above each latching lever to secure the card in the shelf.
13 Unplug and remove the grounding wrist strap.
14 Install the battery source fuse in the rack fuse bay that supplies power to the TimeSource
3000. The TimeSource 3000 enters its warm-up mode when power is applied. During the
warm-up period, the following conditions exist:
• Status GPS lamp is green
• Status SYS lamp is off
• T1 outputs are squelched, sending AIS (factory setting), or sending an SSM message,
as specified in the ED-EQPT command
• Optional composite clock outputs (if equipped) are squelched
• Optional eight T1 outputs (if equipped) are squelched, sending AIS (factory setting), or
sending an SSM message, as specified in the ED-EQPT command
• Optional two IRIG-B outputs (if equipped) are squelched
2
3
3
• 10 MHz and 1 pps outputs are on (unreliable while Status SYS lamp is off)
• TOD output is not enabled (factory setting)
Notes:
1. The CRIT lamp and other alarm indication lamps may light. The host computer may
display transient and standing alarm condition messages. Ignore a larms while the S t atus
SYS lamp is off during warm up, unless alarms apply to inputs and outputs that were
previously entered.
2. TL1 commands may be entered during warm-up to enable inputs and output s, and to set
system parameters.
15 Use the Activate User command to log onto the system.
ACT-USER::TELECOM:<ctag>::TS3000!!;
16 If UTC time is desired, skip to S tep 18. If local time is desired, use the Edit Date command to
set the date and time.
ED-DAT:::<ctag>::yyyy-mm-dd,hh-mm-ss:MODE=LOCAL;
yyyy= year (1998 to 2096)
mm= month (mm = 01 to 12)
dd= day in (dd = 01 to 31)
hh= hours (hh = 00 to 23)
mm= minutes (mm = 00 to 59)
ss= seconds (ss = 00 to 59)
Example command to set local time:
ED-DAT:::123::2000-06-15,14-25-00:MODE=LOCAL;
5
TimeSource 3000 81
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
17 If UTC time is not desired, skip to Step 18. Use the Edit Date command to set the system for
UTC time.
ED-DAT:::<ctag>::yyyy-mm-dd:MODE=UTC;
yyyy= year (yyyy = 1998 to 2096)
mm= month ((mm = 01 to 12)
dd= day (dd = 01 to 31)
Example command to set UTC time:
ED-DAT:::123::2000-06-15:MODE=UTC;
3
82 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
18 Use the Retrieve Equipment command to identify how the inputs are provisioned.
RTRV-EQPT::ALL:<ctag>;
Note: Note the results of the Retrieve Equipment command to set the remainin g p arameters
in this procedure. The possible parameter settings are shown below.
Parameter Definition
FREQ=5 Frequency for both remote oscillator inputs is 5 MHz
FREQ=10 Frequency for both remote oscillator inputs is 10 MHz
TOD=CISCO Time of day output is set to CISCO
TOD=NTP4 Time of day output is set to NTP4
TOD=NONE Time of day output is not provisioned
ALMCOND=ALW Alarm condition for outputs is enabled (major alarms will cause
system to condition the T1 outputs)
ALMCOND=INH Alarm conditioning for outputs is disabled (system will continue to
output valid sync signal while in major alarm)
IPNE=a, b, c, d This sets IP address
IPSUBNET=a, b, c, d Subnet mask
IPGATE=a, b, c, d Default gateway IP address
IPEM1=a, b, c, d Primary element manager IP address
IPEM1PORT=a Primary element manager output port address
IPEM2=a, b, c, d Alternate element manager IP address
IPEM2PORT=a Alternate element manager port number
IPEMACT=a Port 5550 closes connection if no autonomous messages are sent
during this number of 100ms
ANTCBLDLY=x Antenna cable length is x nanoseconds
ANTELEVMASK=x Antenna elevation mask angle is x degrees
ENSEMBLER=ALW This input is ensembled
ENSEMBLER=INH This input is not ensembled
MONITOR=ALW This input is monitored
MONITOR=INH This input is not monitored
SSM=ALW SSM message is used to qualify span input
SSM=INH SSM message is not used to qualify span input
FRAMING=ESF This output framing is ESF
FRAMING=D4 This output framing is D4
ALMOUT=AIS This output is AIS during alarm
ALMOUT=SQUELCH This output is squelched during alarm
ALMOUT=SSM This output includes SSM during alarm
2
3
5
3
TimeSource 3000 83
Installation
097-72000-02 Issue 6: October 2003
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
19 If the results of Step 18 indicate the remote oscillator inputs are set as desired, skip to Step
21. Use the Enter Equipment command to monitor and/or ensemble each remote oscillator
input.
ENT-EQPT::RO-x:<ctag>:::ENSEMBLER=y;
x = remote oscillator input (x = A or B)
y = allow the input to be ensembled or inhibit the input from being ensembled (y = ALW
causes the input to be monitored and ensembled; y = INH causes the input to be
monitored, but not ensembled)
20 Use the Edit Equipment command to set the frequency of the remote oscillator inputs.
ED-EQPT::TS3000:<ctag>:::ROFREQ=x;
x = remote oscillator frequency in MHz (x = 5 or 10)
21 If the results of Step 18 indicate the T1 span inputs are set as desired, skip to Step 25. Use
the Enter Equipment command to monitor each available T1 span input, and to specify
whether those inputs are to be ensembled.
ENT-EQPT::SPAN-x:<ctag>:::ENSEMBLER=y;
x = T1 span input (x = A or B)
y = allow the input to be ensembled or inhibit the input from being ensembled (y = ALW or INH)
22 Use the Edit Equipment command to set the output signal framing for mat for each T1 output,
and set the mode for each T1 output during an alarm.
ED-EQPT::T1-x:<ctag>:::FRAMING=y,ALMOUT=z;
x = T1 output (x = A or B)
y = framing format (y = ESF or D4)
z = T1 output during alarm (z = AIS, SQUELCH, or SSM) (for SSM, framing form at must be ESF)
23 If not using a 990-72010-02 system, skip this step. Use the Edit Equipment command to set
the output signal framing format for each additional T1 output, and set the mode for each T1
output during an alarm.
ED-EQPT::OPT-a:<ctag>:::FRAMING=b,ALMOUT=c;
a = T1 output module port (a = 1 to 8)
b = framing format (b = ESF or D4)
c = T1 output during alarm (c = AIS, SQUELCH, or SSM) (for SSM, framing form at must be ESF)
24 If not using performance monitoring, skip to S t ep 25. Use the Initialize Register comman d to
reset the performance monitoring data to zero for all input spans.
INIT-REG-EQPT::ALL:<ctag>::ALL;
84 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
25 If the results of Step 18 indicate the antenna cable delay and elevation mask set are as
desired, skip to Step 26. Use the Edit Equipment command to set the length of cable
between the antenna and the TimeSource 3000 Shelf. This number should have been
recorded during installation. Use the same command to set the antenna elevation mask
angle.
ED-EQPT::GPS:<ctag>:::ANTCBLDLY=x,ANTELEVMASK=y;
x = antenna cable delay in meters (x = 0 to 330)
y = antenna elevation mask angle in degrees (y = 0 to 45) (see note below)
Note: The antenna elevation mask is that portion of the sky from which the T imeSource 3000
masks out satellite signals, measured from the horizon to the desired angle of ele vation. For
example, if the sky is obstructed below 20° elevation, signals received from below that
elevation may have reflections or other anomalies. Masking those signals may allow the
receiver to acquire GPS signals more quickly and accurately. Factory setting is 0.
26 If not using the TOD output, skip to Step 27. Use the Edit Equipment command to set the
TOD output.
ED-EQPT::TS3000:<ctag>:::TOD=y;
y = TOD format (y = Cisco or NTP4)
2
3
3
27 Use the Edit Equipment command to allow or inhibit alarm conditioning on the outputs.
Inhibiting the alarm conditioning forces the TimeSource 3000 to continue to output valid
timing signals while in alarm. This may be useful when testing, troubleshooting, or in
installations where the outputs generated by the TimeSource 3000 may be better than the
alternative (for example, offices without additional holdover clocks in a distribution shelf).
ED-EQPT::TS3000:<ctag>:::ALMCOND=y;
y = alarm conditioning of the outputs (y = ALW or INH)
28 If not using Ethernet, go to Step 32. Use the Edit Equipment command while connected to
COM1, COM2, or the CRAFT port to set the IP address, subnetwork mask, and gateway
address for the current TimeSource 3000 unit, as required for proper operation in the
managed element network. (These parameters affect all Ethernet ports. The Ethernet port
should be closed and all users logged off before issuing this command.)
ED-EQPT::TS3000:<ctag>:::IPNE=a,IPSUBNET=a,IPGATE=a;
IPNE=a This unit's IP address in the form a.a.a.a (each a is an independent value of 0
to 255)
IPSUBNET=a Subnet mask in the form a.a.a.a (each a is an independent value of 0 to 255)
IPGATE=a Gateway IP address in the form a.a.a.a (each a is an independent value of 0
to 255)
5
TimeSource 3000 85
Installation
097-72000-02 Issue 6: October 2003
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
29 Ports 5001, 5002, 5003 and 5004 on the TimeSource 3000 are used as though they were
serial TL1 communication ports. The following values are set at the factory and appear at
reset:
MONMSG=INH (monitors only the current port for messages)
KEEPALIVE=0 (does not send a COMPLD message to keep connection open)
ENDOFTEXT=0 (does not include an end-of-text code with a TL1 message)
ECHO=ALW (echoes characters back to the sending terminal)
COMPRI=ALW1 (normal communication, including autonomous messages)
AUTOLOGOFF=20 (does not log off the user during inactivity)
SWCONTROL=INH (uses no flow control)
If these values require change, use the Edit Communication command to set
communications parameters for TL1 communications.
ED-COM::COM-a:<ctag>:::[MONMSG=b[,]][KEEPALIVE=c[,]]
[ENDOFTEXT=d[,]][ECHO=b[,]][COMPRI=e[,]][AUTOLOGOFF=c[,]]
[SWCONTROL=b];
COM-a User IP port (a = 5001, 5002, 5003 or 5004)
MONMSG=b Monitors messages on all ports (b = ALW), or current port (b = INH)
KEEPALIVE=c Inactive minutes until the unit sends a COMPLD message to keep the
connection from being closed (c = 0 to 255)
ENDOFTEXT=d Hex code added to responses before semicolon (d = 0 (disabled) to 9F)
ECHO=b Echoes characters received so they appear on the user's screen as typed
(b = ALW), or inhibits echo (b = INH)
COMPRI=e Sets the communication port capabilities as follows:
ALW0= normal communication, no autonomous messages
ALW1= normal communication, autonomous messages
ALW2= autonomous messages received, logged on or not
INH closes connection and keeps port from use (command must go to another
port) (if the port is in use, this command also logs off the user)
AUTOLOGOFF=c Inactive minutes until the unit logs off the user, keeping the connection
open (c = 0 to 255)
SWCONTROL=b uses software (XON/XOFF) flow control (b = AL W), or no flow control (b =
INH)
86 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
30 If not using an Element Manager, skip to Step 32. If not using a separate port to send
autonomous messages to an Element Manager, skip to Step 31. Use the Edit Equipment
command to set the IP address and port address of the Element Manager. Port 5550
connects to this address when the T imeSource 3000 develop s a TL1 autonomous message ,
sends any messages, and closes the connection. An alternate Element Manager may be set
up in case port 5550 cannot make a connection to the primary Element Manager.
ED-EQPT::TS3000:<ctag>:::IPEM1=a,IPEM1PORT=b[,IPEM2=a]
[,IPEM2PORT=b][,IPINACT=c];
IPEM1=a Primary Element Manager's IP address in the form a.a.a.a (each a is an
independent value of 0 to 255)
IPEM1PORT= Primary Element Manager's Ethernet port address (b = 0 to 65535)
IPEM2=a Alternate Element Manager's IP address in the form a.a.a.a (each a is an
independent value of 0 to 255)
IPEM2PORT=b Alternate Element Manager's Ethernet port address (b = 0 to 65535)
IPINACT=c Disconnects from the Element Manager if an autonomous message is not
developed during this number of 100-ms units of inactivity (0 to 10,000,
where 0 deactivates the timer)
2
3
3
5
TimeSource 3000 87
Installation
097-72000-02 Issue 6: October 2003
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
31 Use the Edit Communications command to set the communications parameters of port 5551.
An Element Manager connects to port 5551 for TL1 command and respon se messages. The
following values for port 5551 are set at the factory and appear at reset:
MONMSG=INH (monitors only the current port for messages)
KEEPALIVE=0 (does not send a COMPLD message to keep connection open)
ENDOFTEXT=0 (does not include an end-of-text code with a TL1 message)
ECHO=INH (does not echo characters received)
COMPRI=ALW1 (normal communication, including autonomous messages)
AUTOLOGOFF=20 (does not log off the user during inactivity)
SWCONTROL=INH (uses no flow control)
If these values require change, use the Edit Communication command to set
communications parameters for TL1 communications.
ED-COM::COM-5551:<ctag>:::[MONMSG=b[,]][KEEPALIVE=c[,]]
[ENDOFTEXT=d[,]] [ECHO=b[,]][COMPRI=e[,]][AUTOLOGOFF=c[,]]
[SWCONTROL=b];
MONMSG=b Monitors messages on all ports (b = ALW), or current port (b = INH)
KEEPALIVE= Inactive minutes until the unit sends a COMPLD message to keep the
connection from being closed (c = 0 to 255)
ENDOFTEXT=d Hex code added to responses before semicolon (d = 0 (disabled) to 9F)
ECHO=b Echoes characters received so they appear on the user's screen as
typed (b = ALW), or inhibits echo (b = INH)
COMPRI=e Sets the communication port capabilities as follows:
ALW0 = normal communication, no autonomous messages
ALW1 = normal communication, autono mous messa ges
ALW2 = autonomous messages received, logged on or not
INH closes connection and keeps port from use (command must go to
another port) (if the port is in use, this command also logs off the user)
AUTOLOGOFF=c Inactive minutes until the unit logs off the user, keeping the connection
open (c = 0 to 255)
SWCONTROL=b uses software (XON/XOFF) flow control (b = AL W), or no flow control (b
= INH)
32 Use the Copy Memory command to copy the database from volatile to nonvolatile memory
within the TimeSource 3000.
CPY-MEM:[tid]:TS3000:<ctag>::WKG,,AUX:DATA;
Note: Although the database is automatically copied to nonvolatile memory once per hour,
it is recommended that the Copy Memory command be executed each time the database is
changed.
88 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure F. Power-Up (continued)
Step Procedure
33 When the GPS signals have been acquired and the outputs are stable enough to output a
signal, the TimeSource enters a settling period. During the settling period, the following
conditions exist:
• Status GPS lamp is green
• Status SYS lamp is green
• Any Span or Remote Oscillator lamp is green when its input is connected, entered,
contains valid framing, and is usable for ensembling.
• All outputs are functioning according to specifications or in a slightly degraded mode.
• A TL1 autonomous “settling period” event message exists.
Notes:
1. The nominal time to reach the beginning of the settling period is 20 min. If this state has not
been reached after 40 min., refer to the Troubleshooting chapter.
2. The settling period is the condition where this clock is beyond the warm-up state but not
yet in steady state operation. Steady state operation is indicated by the clearing of the
“settling period” event.
3. The TimeSource 3000 develops and sends timing within the PRS specification during
steady state operation and during any event (other than settling period) or minor alarm,
but not during a major or critical alarm.
2
3
3
End of Procedure
5
TimeSource 3000 89
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
TimeWizard
The TimeWizard Software Installation application was created to facilitate installing
software upgrades for the TimeSource 3000. Procedure G shows how to install the
TimeWizard application and how to use TimeWizard to download software
upgrades.
3
Procedure G. TimeWizard Installation and Operation
Step Procedure
Use this procedure to install the firmware in the TimeSource 3000 to configure the GPS and
Holdover alarms, using the TimeWizard application.
Requirements:
1. A PC running Windows 95/98/NT 4.0/2000/XP.
2. The TimeSource 3000 CD labeled 992-72010-06 Rev. B, Version 1.06.04.
1 Connect the TimeSource 3000 to the PC with a serial cable.
2 Insert the TimeSource 3000 CD labeled 992-72010-06 Rev. B Version 1.06.04 into
the PC’s CD-ROM drive.
If AutoRun is enabled on the PC, the CD should automatically launch the Install
Shield wizard for installation of the TimeWizard application. If Install Shield
launches, continue with Step 5. If Install Shield does not automatically launch,
continue with the next step.
3 The Windows Explorer, double-click “setup.exe” in the root directory of the CD to
start the Install Shield wizard.
Hardware Installation
Install the TimeWizard Software
4 Follow the prompts in the Install Shield wizard to install TimeWizard in the
preferred directory.
Continue with the next step after the TimeWizard installation is complete.
90 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
5 From the Windows desktop, click Start ⇒ Programs ⇒ TimeWizard to start the
TimeW izard application. When TimeW izard starts, the “TimeW izard” main screen
appears:
2
3
The version of TimeWizard that is installed is indicated at the top right of the
screen. The progress indicator at the bottom of the screen shows which of the
seven screens you are currently viewing.
Note that the factory default TimeSource username of “telecom” and password of
“TS3000!!” appear in the Login Information area of the screen.
6 If the user name or password of the TimeSource have been changed, enter the
proper user name or password, otherwise, continue with the next step.
3
5
TimeSource 3000 91
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
7 To select the high-speed download option, in which the firmware download takes
place at approximately 12 times the default speed of 9600 baud, select the Use
High Speed (115K baud) check-box, then click the Next>> button to progress to
the next screen.
If you do not wish to use the high-speed download option, leave the Use High
Speed (115K baud) check-box unselected and click the Next>> button.
Note: In most cases, it is desirable to proceed with the Use High Speed (115K
baud) check-box selected. In certain instances, as when the PC’s communications
port does not support a 1 15K baud rate, de-select the Use High Speed (1 15K baud)
check-box before proceeding.
3
92 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
Download the GPS.hex Firmware
Note: If you are not downloading GPS.hex firmware, click the Next>> button again to
advance to the “Download TS3000.hex” screen, then skip to Step
8 After the Next>> button is clicked in the previou s st ep, the “Download GPS.hex”
screen appears:
13.
2
3
The versions of the GPS.hex and TS3000.hex firmware that are currently installed
in the TimeSource are shown in the GPS.hex Ver and TS3000.hex Ver fields.
Current satellite information is shown in the GPS Status field.
3
5
TimeSource 3000 93
Installation
097-72000-02 Issue 6: October 2003
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
9 Click the ver Unknown button to open the Load GPS File dialog box:
10 In the Load GPS File dialog box, navigate to the GPS.hex firmware file to be
downloaded, then click the Open button.
After the Open button is clicked, the message “Verifying version for
C:\directory\Gps.hex (approx 10 secs)” appears in the Command
area of the screen. Once TimeWizard has verified that the version of the firmware
is correct, the text on the ver Unknown button changes to show the version of the
firmware to be downloaded.
After TimeWizard verifies the firmware version, select the Download GPS.hex
check-box, then click the Next>> button to start the firmware download operation.
94 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
11 When the firmware download operation starts, the Download Progress dialog box
appears:
2
As the download operation proceeds, the value in the Packet field increases, and
the Progress bar shows the progress of the operation. When the firmware
download is complete, the Download Progress dialog box closes.
3
After the Download Progress dialog box closes, continue with the next step.
Notes:
1. The firmware download operation can be aborted at any time by clicking the
Cancel button in the Download Progress dialog box.
2. If the download fails for any reason, a screen appears with instructions to
contact Symmetricom. If this happens, exit the application, check the cable
connections, and restart TimeWizard.
12 After the Download Progress dialog box closes, continue to monitor the messages
reported in the Commands area of the screen.
After the firmware file finishes downloading from the PC to the TimeSource, the
TimeSource requires more time to complete the firmware upgrade process. During
this time, it should not be interrupted. When the firmware upgrade is fully
complete, TimeWizard automatically advances to the next screen.
After the screen automatically advances, continue with the next step.
Download the TS3000.hex Firmware
Note: If you are not downloading TS3000.hex firmware, click the Next>> button again,
then skip to Step
13 The “Download TS3000.hex” screen appears very similar to the “Download
GPS.hex” screen shown in Step
8, and contains the same information.
18.
3
5
14 Click the ver Unknown button to open the Load TS3000 File dialog box, which
appears very similar to the dialog box shown in Step
TimeSource 3000 95
Installation
097-72000-02 Issue 6: October 2003
9.
3
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
15 In the Load TS3000 File dialog box, navigate to the TS3000.hex firmware file to
be downloaded, then click the Open button.
After the Open button is clicked, the message “Verifying version for
C:\directory\ts3000.hex (approx 30 secs)” appears in the
Command area of the screen. Once TimeWizard has verified that the version of the
firmware is correct, the text on the ver Unknown button changes to show the
version of the firmware to be downloaded.
After TimeW izard verifies the firmware version, select the Download TS3000. hex
check-box, then click the Next>> button to start the firmware download operation.
16 When the firmware download operation starts, the Download Progress dialog box
appears.
As the download operation proceeds, the value in the Packet field increases, and
the Progress bar shows the progress of the operation. When the firmware
download is complete, the Download Progress dialog box closes.
After the Download Progress dialog box closes, continue with the next step.
Notes:
1. The firmware download operation can be aborted at any time by clicking the
Cancel button in the Download Progress dialog box.
2. If the download fails for any reason, a screen appears with instructions to
contact Symmetricom. If this happens, exit the application, check the cable
connections, and restart TimeWizard.
17 After the Download Progress dialog box closes, continue to monitor the messages
reported in the Commands area of the screen.
After the firmware file finishes downloading from the PC to the TimeSource, the
TimeSource requires more time to complete the firmware upgrade process. During
this time, it should not be interrupted. When the firmware upgrade is fully
complete, TimeWizard automatically advances to the next screen.
Note: After the TS3000.hex download operation successfully completes, the
TimeSource reboots so that it can use the newly installed firmware. Upon
rebooting, the system’s output might enter the degraded region of the PRS mask
for up to one hour.
After the screen automatically advances, continue with the next step.
96 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
Verify the Firmware Versions
18 The “Status Information” screen appears as follows:
2
3
Verify that GPS.hex Ver and TS3000.hex Ver fields show that the correct versions
of the GPS.hex and TS3000.hex firmware are now installed, then click the Next>>
button.
3
5
TimeSource 3000 97
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
Setup the Alarm Parameters
3
19
When the Next>> button is clicked, the “Set the Alarm Parameters” screen appears:
The Load and Save buttons allow a file to be generated that saves the alarm parameters in
a file called TS3Kconf.sym as default. The file name for a configuration can be saved by
selecting the Save button and providing a file name. The Load button allows the user to
load a saved file that will automatically configure the Alarm Parameters screen.
This screen allows the parameters for GPS and Holdover alarm conditions to be modified.
If you do not want to modify any of the alarm parameters, click the Next>> button and
continue with Step
21. Otherwise, continue with the next step.
98 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
20 Choose the alarm parameters as desired. A description of each setting follows:
Setting Description
Severity 1 The initial severity of the alarm.
Service Affecting 1 The initial service affecting status of the alarm condition.
Time to Severity 2 If the Escalate Alarm check-box is selected, the alarm will
be escalated to the severity and service affecting status
selected under Severity 2 and Service Affecting 2, after the
time period selected under Hours and Mins has been
reached. If the Escalate Alarm check-box is not selected,
the alarm will not be escalated.
Severity 2 The severity of the alarm after it has been escalated.
Service Affecting 2 The service affecting status of the alarm condition after the
alarm has been escalated.
When you are finished modifying the alarm parameters, click the Next>> button.
2
3
3
5
TimeSource 3000 99
Installation
097-72000-02 Issue 6: October 2003
SSSSSSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS S
Procedure G. TimeWizard Installation and Operation (continued)
Step Procedure
21 When the Next>> button is clicked, the “View the Alarm Parameters” screen
appears:
3
This screen confirms the alarm parameter settings from the previous screen.
If the settings are correct, click the Next>> button to continue. If the settings are
not correct, click the <<Back button to return to the “Set the Alarm Parameters”
screen, and correct the settings.
100 TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
Loading...