Microsemi SyncSystem 4380A User manual

SyncSystem
4380A
Operations and Maintenance
Manual
Ju1 2017
Part Number: 098‐00723‐000
Manual updates are available at: www.microsemi.com/ftdsupport

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Manufacturer Information:
Microsemi, Inc
4775 Walnut Street
Suite 1B
Boulder, CO 80301-2579
www.microsemi.com/time
Where to Find Answers to Product and Document Questions
For additional information about the products described in this guide, please contact your Microsemi
representative or your local sales office. You can also contact us on the web at:
www.microsemi.com/ftdsupport.
When this manual is updated the updated version will be available for downloading from Microsemi’s
internet web site. Manuals are provided in PDF format for ease of use. After downloading, you can view
the manual on a computer or print it using Adobe Acrobat Reader. Manual updates are available at:
www.microsemi.com/ftdsupport
What’s New In This Guide
This is the first release of this document.
Related Documents and Information
See your Microsemi representative or sales office for a complete list of available documentation. To order
any accessory, contact the Microsemi Sales Department. See www.microsemi.com/salescontacts/ for sales
support contact information. If you encounter any difficulties installing or using the product, contact
Microsemi Frequency and Time Division (FTD) Services and Support:
U.S.A. Call Center:
including Americas, Asia and Pacific Rim
Frequency and Time Division
3870 N 1st St.
San Jose, CA 95134
Toll-free in North America: 1-888-367-7966
Telephone: [phone]
Fax: [phone]
email: [email protected]m
Internet: www.microsemi.com/ftdsupport
Europe, Middle East, and Africa (EMEA)
Microsemi FTD Services and Support EMEA
Altlaufstrasse 42
85635 Hoehenkirchen-Siegertsbrunn
Germany
Telephone: [phone]
Fax: [phone]
E-mail: [e-mail]
[e-mail]
SyncSystem 4380A Operations and Maintenance Manual
Copyright © 2016 Microsemi
Microsemi is a trademark of Microsemi, Inc.
Other product and company names may be trademarks of their respective owners.

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Revision History
Revision
Description
Date
Approved
1.0
Initial Release
Feb 2016
KWM
2.0
Updated performance specifications & CE Documentation
May2016
KWM
3.0
Updated safety and fuse rating information
Jun 2016
KWM
4.0
Software Version 1.1
Jul 2017
KWM

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Table of Contents
1General Information .........................................................................................................1
1.1 Introduction.......................................................................................................... 1
1.2 Ordering Information ........................................................................................... 1
1.3 Safety Information................................................................................................ 2
2Installation........................................................................................................................4
2.1 Powering on the 4380A........................................................................................ 4
2.2 Application Start Up............................................................................................. 5
2.3 Communicating with the 4380A .......................................................................... 5
2.3.1 DHCP............................................................................................................ 5
2.3.2 Static IP Addresses ....................................................................................... 5
2.3.2.1 Network..................................................................................................... 5
2.3.2.2 Console Cable ........................................................................................... 5
2.3.3 Setting a Static IP Address............................................................................ 6
2.3.4 USB Ports...................................................................................................... 7
2.4 Antenna Installation ............................................................................................. 7
2.4.1 Antenna Location.......................................................................................... 7
2.4.2 Setting the Antenna Voltage......................................................................... 9
2.4.3 Outdoor Antenna Grounding ...................................................................... 10
2.4.4 Antenna Mask Angle .................................................................................. 10
2.4.5 Positioning Modes ...................................................................................... 10
2.4.5.1 Dynamic Position Mode.......................................................................... 10
2.4.5.2 Auto Position Mode ................................................................................ 11
2.4.5.3 Manual Position Mode............................................................................ 12
2.5 4380A Installation.............................................................................................. 14
2.5.1 Chassis Grounding...................................................................................... 14
2.5.2 Power Supplies............................................................................................ 14
2.5.3 Input/Output Cards...................................................................................... 15
2.5.4 4394A (PPS/DC IRIG) ............................................................................... 15
2.5.5 4376A RS-422 PPS..................................................................................... 17
2.5.6 4394A-ECL (PPS-ECL).............................................................................. 18
2.5.7 4395B-10 (10MHz)..................................................................................... 19
2.5.8 4395B-5 (5MHz)......................................................................................... 20
2.5.9 4395B-1 (1MHz)......................................................................................... 20
2.5.10 4387A Series (Modulated IRIG/NASA36)................................................. 20
2.5.11 4396A/4397A 2MHz Output Card.............................................................. 22
2.5.12 4374A T1 (1.544MHz) Output Card .......................................................... 22
2.5.13 4393A Time Interval Counter (TIC) Card.................................................. 23
2.5.14 4383A IRIG Input Card.............................................................................. 24
2.6 Antenna Delay Calibration................................................................................. 24
2.7 On Time Point (OTP)......................................................................................... 25
2.8 Using an External Frequency Reference:........................................................... 26
2.9 Setting the System Time Manually.................................................................... 28
2.9.1 Force Time.................................................................................................. 28
2.9.2 External Reference...................................................................................... 28

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2.9.3 Disable the GPS Tracking Alarms.............................................................. 29
2.10 User Configuration Files ................................................................................ 29
2.10.1 Factory / Default User Configuration Files ................................................ 29
2.10.2 Diff Command ............................................................................................ 30
2.10.3 FTP and Real-Time (rt) Configuration Files .............................................. 30
2.10.4 System Configuration Files (Syscfg).......................................................... 32
2.11 Powering the System Off................................................................................ 33
3. Operations ......................................................................................................................34
3.1 Front Panel ......................................................................................................... 34
3.1.1 Power Supply Indicators................................................................................. 34
3.1.2 Alarm Indicator............................................................................................... 34
3.1.3 SYNC Indicator.............................................................................................. 34
3.1.4 Outputs Indicator............................................................................................ 35
3.1.5 Fans................................................................................................................. 35
3.1.6 Status Pushbutton ........................................................................................... 36
3.2 Rear Panel .......................................................................................................... 36
3.3 Software ............................................................................................................. 37
3.3.1 Current Version .............................................................................................. 37
3.3.2 Software Updates............................................................................................ 37
3.3.2.1 Flash Card Replacement............................................................................. 37
3.3.2.2 Remote Software Update............................................................................ 38
3.3.3 GPS Firmware Updates .................................................................................. 39
3.4 User Interfaces.................................................................................................... 39
3.4.1 Telnet.............................................................................................................. 39
3.4.1.1 Real Time Data Port (1135)........................................................................ 40
3.4.1.2 Command Port (1700)................................................................................. 40
3.4.1.3 Diagnostic Port (1800)................................................................................ 42
3.4.1.4 Status Port (1900) ....................................................................................... 43
3.4.1.5 Average TIC Data Port (2100).................................................................... 43
3.4.1.6 Raw TIC Data Port (2101).......................................................................... 44
3.4.2 File Transfer Protocol (FTP) .......................................................................... 44
3.4.3 Network Time Protocol (NTP)....................................................................... 45
3.4.4 Simple Network Management Protocol (SNMP)........................................... 45
3.5 Status Command ................................................................................................ 45
3.6 GPS Data Logging ............................................................................................. 46
3.6.1 FTP Data Logging .......................................................................................... 46
3.6.2 Real Time Data Logging ................................................................................ 48
3.7 WAAS Satellites ................................................................................................ 49
3.8 System Verification............................................................................................ 49
4Theory of Operations......................................................................................................58
4.1 Generation of Timing Signals ............................................................................ 58
4.2 GPS..................................................................................................................... 58
4.3 Output Signals.................................................................................................... 58
4.4 GPS Data Collection .......................................................................................... 59
4.5 Startup Sequence................................................................................................ 59
5Maintenance ...................................................................................................................61

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5.1 Fan Filter ............................................................................................................ 61
5.2 Antenna and Antenna Cable Inspection............................................................. 61
6Troubleshooting..............................................................................................................62
6.1 Front Panel Indications....................................................................................... 62
6.2 Alarm Light........................................................................................................ 62
6.3 Power Supplies................................................................................................... 62
6.4 Outputs Indicator................................................................................................ 63
6.5 GPS Performance............................................................................................... 65
6.5.1 Poor GPS Receiver Performance.................................................................... 65
6.5.2 GPS Not Tracking .......................................................................................... 66
6.6 Internal Clocks ................................................................................................... 67
6.7 External Reference............................................................................................. 68
6.8 PTD Value is Noisy............................................................................................ 70
6.9 Over Temperature and Fans............................................................................... 70
6.10 PPS Outputs.................................................................................................... 71
6.11 IRIG Outputs .................................................................................................. 72
6.12 NASA36 Outputs............................................................................................ 72
6.13 TIC Measurements ......................................................................................... 73
6.14 Software Update Failure................................................................................. 73
6.15 Configuration Not Readable........................................................................... 73
6.16 Communication Problems .............................................................................. 74
6.16.1 LAN................................................................................................................ 74
6.16.2 USB-to-Serial Adapter (94000-115200) (Command Port) ............................ 74
6.16.3 External Reference Adapter (94001-5071A).................................................. 74
6.17 Syslog Command............................................................................................ 74
6.18 System Configuration Issues (syscfg) ............................................................ 75
Appendix A System Specifications................................................................................................76
A.1 Environmental.................................................................................................... 76
A.2 Physical .............................................................................................................. 76
A.3 10 MHz Sinewave Input..................................................................................... 76
A.4Timing Performance........................................................................................... 76
A.5 Ethernet Interface............................................................................................... 76
A.6 USB Command Port Cable (94000-115200) ..................................................... 77
A.7 USB External Reference Port Cable (94001-5071A) ........................................ 77
A.8 GPS Receiver ..................................................................................................... 77
A.9 PPS / DC IRIG Module (4394A) ....................................................................... 77
A.10 PPS ECL (4394A-ECL).................................................................................. 77
A.11 RS-422 PPS Module (4376A) ........................................................................ 78
A.12 10 MHz Module (4395B-10).......................................................................... 78
A.13 5 MHz Module (4395B-5).............................................................................. 78
A.13 1 MHz Module (4395B-1).............................................................................. 79
A.14 Amplitude Modulated (AM) IRIG Module (4387A, 4387A-6V, 4387A-1V)79
A.15 1.544 T1 Module (4394A).............................................................................. 79
A.16 2.048MHz Module (4396A)........................................................................... 80
A.17 2.048MHz Module (4397A)........................................................................... 80
A.18 Time Interval Counter (4393A)...................................................................... 80

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A.19 IRIG Input Card (4383A) ............................................................................... 80
A.20 AC Power Supply (4385B)............................................................................. 81
A.21 DC Power Supply (4386A)............................................................................. 81
A.22 Power Consumption ....................................................................................... 81
A.23 Replacement Fuses ......................................................................................... 81
Appendix B CE Declaration...........................................................................................................82
Figures
Figure 1 Safety Symbols..................................................................................................... 3
Figure 2 Antenna Location ................................................................................................. 8
Figure 3 Antenna Cable ...................................................................................................... 9
Figure 4 Chassis Ground Connection............................................................................... 14
Figure 5 Rear Panel Output Card Locations..................................................................... 15
Figure 6 Input/Output Cards............................................................................................. 15
Figure 7 Timing System Diagram..................................................................................... 26
Figure 8 External Frequency Reference ........................................................................... 26
Figure 9 4380A Front Panel.............................................................................................. 34
Figure 10 4380A Rear Panel............................................................................................. 36
Figure 11 4380A Rear Panel Connections........................................................................ 37
Figure 12 AC Power Input................................................................................................ 81
Figure 13 DC Power Input................................................................................................ 81
Tables
Table 1 Power Supply Indicator Status............................................................................. 34
Table 2 Alarm Indicator.................................................................................................... 34
Table 3 Sync Indicator...................................................................................................... 35
Table 4 Outputs Indicator ................................................................................................. 35
Table 5 System Command List......................................................................................... 42
Table 6 Maintenance Schedule......................................................................................... 61

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1 General Information
1.1 Introduction
The 4380A Sync System is a state-of-the-art GPS disciplined time and frequency reference. The low noise
synthesizer (LNS), in conjunction with GPS measurements and the Rubidium option, provide outputs that
are characterized by the short-term stability of the OCXO and the long-term stability of the GPS
constellation. Additionally, it provides the user with the capability to enhance the frequency stability and
holdover performance of the unit by using an external cesium (Cs) clock as the reference. This provides a
scalable architecture that allows users to fulfill a wide range of current and future requirements with a
single unit. The 4380A is suitable for a variety of precise time and frequency applications.
The 1 Pulse per Second (1 PPS) accuracy and frequency stability of the 4380A is further enhanced by using
a dual-frequency (L1/L2) GPS receiver. The dual-frequency receiver applies corrections to the GPS timing
signals that remove a significant portion of the errors due to ionospheric delay.
In applications where reliability is a must, the 4380A is capable of operating from an AC (100 –240VAC,
50-60 Hz) or DC Power 48 VDC (22 to 60 VDC) source and comes with two fully redundant hot
swappable power supplies. The unit is capable of operating from a single supply in the event one of the
two power supplies fails.
1.2 Ordering Information
4380A (Sync System): Standard dual frequency GPS time and frequency standard. Dual AC input
supplies included. Requires external frequency reference, fiber reference, or internal Rubidium (RB). The
unit does not include any daughter cards (see below) or fiber SFP modules.
4830A-ACAC-G1R: Two AC Input power supplies. 100-240VAC, 50/60Hz with GPS and internal
Rubidium.
4830A-ACDC-G1R: One AC Input power supply, 100-240VAC, 50/60Hz and one DC input power supply
(22 to 60 VDC) with GPS and internal Rubidium.
4830A-DCDC-G1R: Two DC Input power supplies, (22 to 60 VDC) with GPS and internal Rubidium.
Input/Output Cards: The 4380A has a wide selection of input/output cards available:
1. 4376A RS-422 4 Output 1PPS Card
2. 4395B-10 Four Low Phase Noise 10 MHz Sinewave Outputs
3. 4395B-5 Four Low Phase Noise 5 MHz Sinewave Outputs
4. 4395B-1 Four Low Phase Noise 1 MHz Sinewave Outputs
5. 4394A: Programmable PPS and DC IRIG Module. Users can define the signal types and
operating parameters. Default set up is two 1PPS Outputs (Ports 1 and 2) and two DC IRIG
Outputs (Ports 3 and 4) (Default Timecode = B000)
6. 4394A-ECL Two Programmable differential PPS-ECL Outputs
7. 4387A Four Modulated IRIG Outputs (Default Timecode = B120) or NASA36.
8. 4387A-1V Four 1V Modulated IRIG Outputs (Default Timecode = B120) or NASA36

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9. 4387A-6V Four 6V Modulated IRIG Outputs (Default Timecode = B120) or NASA36
10. 4396A/4397A Four 2.048MHz (E1) outputs that comply with ITU-T Rec. G.703
11. 4372A-T Four input/output single mode fiber optic module for supplying signals to a TSC-4340
or 4380A
12. 4393A Four Channel TIC Card. Users can measure the 1PPS of up to four different devices
relative to the internal clock and obtain these measurement results in real time.
13. 4383A IRIG Input Card. Users can set the system time manually using an IRIG Time Source.
Ports 1 and 2 support DC IRIG and Ports 3 and 4 support AM IRIG.
Options:
94000-115200 USB Console Cable: Allows users to connect to the system Command Port via a serial
cable.
94001-5071A USB External Reference Communication Cable: Provides a serial communications port
to an external frequency reference (i.e. 5071A).
94020: Rail Kit for Racks 20” to 32” deep
94021: Rail Kit for Racks 24” to 30” deep
92001: Widebaand GPS Antenna
9200-12: 12dB inline amplifier
9200-21: 21dB inline amplifier
9201-TT: Lightning Arrestor
Notes:
1. Antenna cables sold separately.
2. All units include the antenna, USB dongles, 94020 Rail Kits, network time protocol (NTP),
Ethernet control, and data logging capabilities.
3. Contact Microsemi (www.microsemi.com) for current pricing and availability.
4. The 94000-115200 and 94001-5071A USB Dongles are DTE devices; this may require the use of
a null modem serial cable.
1.3 Safety Information
The following symbols are used in this manual to point out personnel hazards and safety issues when
operating and maintaining this unit.