Brandywine PTP-800 User manual

User Manual
Quad Port PTP Time Server
PTP-800
For Brandywine Communications and Time &
Frequency Solutions Part Number:
050600XXX
900600200 Rev. A
June, 2023

Revision History
REVISION DATE COMMENTS ECO NUMBER
A 2023/06/08 Initial Release ECO12629
ii

Safety Warnings
WARNING:
The lightning flash with an arrowhead inside of an
equilateral triangle is intended to alert the user to
the presence of uninsulated “dangerous voltage”
within the product’s enclosure. The “dangerous
voltage” may be of sufficient magnitude to con-
stitute a risk of electrical shock to people.
WARNING:
This unit contains dual power supplies. Isolate
BOTH power supplies from power before remov-
ing the top cover.
CAUTION:
Observe all necessary precautions for handling
electrostatic discharge sensitive devices when
handing component modules. Improper handling
will damage internal circuitry.
iii

Contents
1 Overview 1
1.1 Introduction................................ 1
1.2 SystemOverview ............................. 2
1.3 Specifications ............................... 4
1.3.1 ReferenceInputs ......................... 4
1.3.1.1 GNSS .......................... 4
1.3.1.2 Outputs......................... 4
1.3.1.3 Connections . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.1.4 Interface Standards . . . . . . . . . . . . . . . . . . . 5
1.3.1.5 Configuration and Status . . . . . . . . . . . . . . . 5
1.3.1.6 Physical......................... 6
1.3.1.7 Environment ...................... 6
1.3.1.8 Input Synchronization Accuracy . . . . . . . . . . . . 6
1.3.1.9 Frequency Stability . . . . . . . . . . . . . . . . . . . 7
2 Quick Start Guide 9
3 Installation 11
3.1 SitePreparation.............................. 11
3.1.1 Antenna.............................. 11
3.1.1.1 Power .......................... 12
3.1.1.2 Network......................... 12
3.1.1.3 Reference Sources . . . . . . . . . . . . . . . . . . . 12
3.1.1.4 Power .......................... 13
3.1.1.5 Antenna......................... 13
3.1.1.6 Ethernet......................... 13
v

4 Setup 15
4.1 AccessingthePTP800 .......................... 16
4.2 Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3 SourcesandNTP............................. 19
4.4 PTPConfiguration ............................ 20
5 Connections 21
5.1 Input Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1.1 GNSS Antenna Connections . . . . . . . . . . . . . . . . . . . 22
5.1.1.1 Standard GPS Antenna . . . . . . . . . . . . . . . . 22
5.1.1.2 Long Reach GPS Antenna . . . . . . . . . . . . . . . 22
5.1.2 IRIG B Time Code Input . . . . . . . . . . . . . . . . . . . . 23
5.1.3 ASCII Serial Time Of Day Input . . . . . . . . . . . . . . . . 23
5.1.4 1PPSInput ............................ 24
5.1.5 10MHzInput........................... 24
5.2 OutputConnections ........................... 25
5.2.1 1PPSOutput ........................... 25
5.2.2 IRIG Time Code Output . . . . . . . . . . . . . . . . . . . . . 26
5.2.3 Time of Day Output . . . . . . . . . . . . . . . . . . . . . . . 27
5.2.3.1 NMEA0183 Message format GPZDA . . . . . . . . . 28
5.2.3.2 TFS Message1 . . . . . . . . . . . . . . . . . . . . . 29
5.2.4 10MHzOutput.......................... 29
5.3 NetworkPorts............................... 30
5.4 PowerConnection............................. 31
5.5 Default Setting / IP Button . . . . . . . . . . . . . . . . . . . . . . . 32
6 Web Configuration 33
6.1 SystemSecurity.............................. 35
6.1.1 Login Credentials . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.1.2 Remote Configuration Access . . . . . . . . . . . . . . . . . . 37
6.1.3 SNMP v3 Credentials . . . . . . . . . . . . . . . . . . . . . . . 38
6.1.4 NTP Aunthentication . . . . . . . . . . . . . . . . . . . . . . . 38
6.2 Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.3 Configure ................................. 44
6.3.1 NTP................................ 44
6.3.1.1 STATS ......................... 45
6.3.1.2 AUTO-OFF / Holdover . . . . . . . . . . . . . . . . 45
6.3.1.3 Leap Second . . . . . . . . . . . . . . . . . . . . . . 45
vi

6.3.1.4 SignalMask....................... 46
6.3.1.5 Elevation Mask . . . . . . . . . . . . . . . . . . . . . 46
6.3.1.6 CableDelay....................... 46
6.3.1.7 Mode .......................... 46
6.3.1.8 IRIGyear........................ 47
6.3.1.9 AC/DCLS........................ 47
6.3.1.10 LocalTime ....................... 47
6.3.1.11 CableDelay....................... 47
6.3.1.12 TimeofDay ...................... 48
6.3.1.13 Localtime........................ 48
6.3.1.14 Peer Servers 1-4 . . . . . . . . . . . . . . . . . . . . 48
6.3.1.15 Mulitcast (or Broadcast) Address . . . . . . . . . . . 49
6.3.1.16 Local Time Zone . . . . . . . . . . . . . . . . . . . . 49
6.3.2 Outputs .............................. 50
6.4 Status ................................... 51
6.4.1 Status ............................... 51
6.4.2 PTPStatus ............................ 53
6.5 Events................................... 54
6.5.1 SystemEvents .......................... 55
6.5.2 GPSEvents............................ 55
6.5.3 NTP Server Events . . . . . . . . . . . . . . . . . . . . . . . . 56
6.6 RemoteRestart.............................. 57
7 Precision Time Protocol 59
7.1 WhyUsePTP?.............................. 59
7.2 PTPHeirarchy .............................. 61
8 Maintenance 63
8.1 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 63
8.2 Uploading New Firmware . . . . . . . . . . . . . . . . . . . . . . . . 64
9 Frequently Asked Questions 65
10 Troubleshooting 67
10.1StatusLEDMeanings .......................... 68
10.2 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11 Updating Firmware and FPGA 71
vii

A Support Information 73
B Network Time Protocol 75
B.1 Why use the Network Time Protocol . . . . . . . . . . . . . . . . . . 75
B.2 UnderstandingNTP ........................... 76
B.3 NTPHierarchy .............................. 77
C SNMP MIB Format 79
C.1 Brandywine Common MIB . . . . . . . . . . . . . . . . . . . . . . . . 79
C.2 TFSCommonMIB............................ 91
D TFS Message4 Format Definition 101
Front Panel Drawing 103
Rear Panel Drawing 105
Parts List 107
viii

List of Figures
1.1 BlockDiagram .............................. 3
2.1 QuickSetupGuide ............................ 10
4.1 PTP800FrontPanel ........................... 15
4.2 StatusWebPage ............................. 16
4.3 Network Setting Web Page . . . . . . . . . . . . . . . . . . . . . . . . 18
4.4 NTP Configuration Web Page . . . . . . . . . . . . . . . . . . . . . . 19
4.5 PTP Configuration Web Page . . . . . . . . . . . . . . . . . . . . . . 20
5.1 RearPanelDrawing ........................... 21
5.2 1PPSOutput ............................... 25
5.3 Configuring IRIG B Output Format . . . . . . . . . . . . . . . . . . . 26
5.4 Baud Rate Selection for Time of Day Output . . . . . . . . . . . . . 27
6.1 NavigationMenu ............................. 33
6.2 SystemScreen............................... 35
6.3 Web Security Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4 SNMP v3 Credentials Input Area . . . . . . . . . . . . . . . . . . . . 38
6.5 NTP Authentication Key Input . . . . . . . . . . . . . . . . . . . . . 38
6.6 Network Settings Screen . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.7 Network Screen Showing Configuration Changes . . . . . . . . . . . . 42
6.8 Network Screen After IP Address Change . . . . . . . . . . . . . . . . 43
6.9 NTP Configuration Screen . . . . . . . . . . . . . . . . . . . . . . . . 44
6.10 PTP800 Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.11EventLogScreen............................. 54
6.12 Detail View of Remote Restart Option . . . . . . . . . . . . . . . . . 57
6.13 Remote Restart Complete . . . . . . . . . . . . . . . . . . . . . . . . 58
ix

7.1 PTPProtocolDiagram.......................... 60
7.2 PTP Heirarchical Structure . . . . . . . . . . . . . . . . . . . . . . . 61
B.1 NTP Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . 76
B.2 NTP Stratum Structure Diagram . . . . . . . . . . . . . . . . . . . . 77
D.1 FrontPanelDrawing ........................... 103
D.2 RearPanelDrawing ........................... 105
x