hopf 8029NTS-V2/GPS User manual

_____________________________________________________________
Technical Manual
GPS - NTP Time Server with LAN Interface
Model 8029NTS-V2/GPS
For DIN Rail Installation
(DIN EN 60715 TH35)
ENGLISH
Version: 08.00 - 28.08.2018
_____________________________________________________________
SET
IMAGE (8029)
FIRMWARE (8024)
Valid for
Version: 08.xx
Version: 08.xx
Version: 01.xx
Industriefunkuhren

2 / 121 GPS - NTP Time Server with LAN Interface 8029NTS-V2/GPS - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]

INPORTANT NOTES
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hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
Version Numbers (Firmware / Description)
THE TERM SET DEFINES THE FIXED RELATIONSHIP BETWEEN THE IMAGE VERSION
AND THE ASSOCIATED H8 FIRMWARE VERSION.
THE FIRST TWO DIGITS OF THE TECHNICAL DESCRIPTION VERSION NUMBER,THE
SET VERSION AND THE IMAGE VERSION MUST BE THE SAME!THEY DESIGNATE THE
SHARED FUNCTIONAL IDENTITY BETWEEN DEVICE,SOFTWARE AND TECHNICAL
DESCRIPTION.
THE VERSION NUMBER OF THE IMAGE AND THE H8 SOFTWARE CAN BE READ IN THE
WEBGUI OF TIME SERVER 8029NTS/GPS (SEE CHAPTER 7.3.5.1 DEVICE
INFORMATION AND CHAPTER 7.3.5.2 HARDWARE INFORMATION).
THE TWO DIGITS AFTER THE DOT IN THE VERSION NUMBER DESIGNATES
CORRECTIONS TO THE FIRMWARE AND/OR DESCRIPTION WHICH HAVE NO EFFECT ON
FUNCTIONALITY.
Downloading Technical Manuals
All current manuals of our products are available free of charge via our homepage on the
Internet.
Homepage: http://www.hopf.com
E-mail: [email protected]om
Symbols and Characters
Operational Reliability
Disregard may cause damages to persons or material.
Functionality
Disregard may impact function of system/device.
Information
Notes and Information.

SERVICE RELIABILITY
4 / 121 GPS - NTP Time Server with LAN Interface 8029NTS-V2/GPS - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
Safety regulations
The safety regulations and observance of the technical data serve to
ensure trouble-free operation of the device and protection of persons and
material. It is therefore of utmost importance to observe and compliance
with these regulations.
If these are not complied with, then no claims may be made under the
terms of the warranty. No liability will be assumed for any ensuing
damage.
Safety of the device
This device has been manufactured in accordance with the latest
technological standards and approved safety regulations
The device should only be put into operation by trained and qualified staff.
Care must be taken that all cable connections are laid and fixed in position
correctly. The device should only be operated with the voltage supply
indicated on the identification label.
The device should only be operated by qualified staff or employees who
have received specific instruction.
If a device must be opened for repair, this should only be carried out by
employees with appropriate qualifications or by hopf Elektronik GmbH.
Before a device is opened or a fuse is changed all power supplies must
be disconnected.
If there are reasons to believe that the operational safety can no longer
be guaranteed the device must be taken out of service and labelled
accordingly.
The safety may be impaired when the device does not operate properly
or if it is obviously damaged.
CE-Conformity
This device fulfils the requirements of the EU directive 2014/30/EU
"Electromagnetic Compatibility" and 2014/35/EU "Low Voltage Equipment".
Therefore the device bears the CE identification marking
(CE = Communautés Européennes = European communities)
The CE indicates to the controlling bodies that the product complies with the requirements of
the EU directive - especially with regard to protection of health and safety for the operator and
the user - and may be released for sale within the common markets.

TABLE OF CONTENTS
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hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
Contents Page
1GPS - NTP Time Server 8029NTS/GPS ........................................................................9
2System Structure........................................................................................................12
2.1 Housing...................................................................................................................12
2.2 Power Supply..........................................................................................................12
2.3 Functional Overview of the Front Panel Elements ...................................................12
2.3.1 Reset-(Default) Button ....................................................................................................... 12
2.3.2 NTP Status LEDs (NTP/Stratum/Accuracy)....................................................................... 13
2.3.3 USB-Port............................................................................................................................ 13
2.3.4 LAN Interface ETH0........................................................................................................... 13
2.3.4.1 MAC-Address for ETH0.............................................................................................................. 14
2.3.5 Sync Status Optical Coupler.............................................................................................. 14
2.3.6 Sync Status LEDs.............................................................................................................. 14
2.3.7 GPS Antenna Input............................................................................................................ 15
3Function Principle.......................................................................................................16
3.1 Block Diagram.........................................................................................................16
3.2 Function 8029NTS (WebGUI: Device).....................................................................17
3.3 Function 8024GPS (WebGUI: Sync Source) ...........................................................17
4System Behaviour.......................................................................................................18
4.1 Boot Phase..............................................................................................................18
4.2 NTP Adjustment Process (NTP/Stratum/Accuracy) .................................................18
4.3Reset-(Default) Button.............................................................................................18
4.4 Firmware Update.....................................................................................................19
4.4.1 Firmware Update 8029NTS (WebGUI: Device)................................................................. 19
4.4.2 Firmware Update 8024GPS (WebGUI: Sync Source)....................................................... 20
4.5 Activation of Functions (Activation Key)...................................................................21
5Installation...................................................................................................................22
5.1 Installation/Dismounting of the DIN Rail Housing.....................................................22
5.1.1 Mounting ............................................................................................................................ 22
5.1.2 Dismounting ....................................................................................................................... 22
5.2 Protective Earth Conductor (Grounding)..................................................................23
5.3 Power Connection...................................................................................................23
5.3.1 AC Power Supply............................................................................................................... 23
5.3.1.1 Safety and Warning Instructions................................................................................................. 23
5.3.1.2 Connection to various Power Networks...................................................................................... 24
5.3.1.3 Power Cable Connection............................................................................................................ 24
5.3.1.4 Voltage Input / Fuse Protection................................................................................................... 25
5.3.1.5 Power Supply Specifications....................................................................................................... 25
5.3.1.6 Power LED.................................................................................................................................. 25
5.3.2 DC Power Supply............................................................................................................... 25
5.3.2.1 Power Supply Unit Specifications ............................................................................................... 26
5.3.2.2 Fuse Protection........................................................................................................................... 26
5.4 Connection GPS Antenna System...........................................................................26

TABLE OF CONTENTS
6 / 121 GPS - NTP Time Server with LAN Interface 8029NTS-V2/GPS - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
5.5 Connection LAN Interface ETH0..............................................................................27
5.6 Connection Sync Status Optical Coupler.................................................................27
6Commissioning...........................................................................................................28
6.1 General Procedure..................................................................................................28
6.2 Switching on the Operating Voltage.........................................................................29
6.3 Establish the Network Connection via Web Browser ...............................................29
6.4 Network Configuration for ETH0 via LAN through hmc ..........................................29
7HTTP/HTTPS WebGUI –Web Browser Configuration Interface...............................33
7.1 Quick Configuration.................................................................................................33
7.1.1 Requirements..................................................................................................................... 33
7.1.2 Configuration Steps............................................................................................................ 33
7.2 General –Introduction.............................................................................................34
7.2.1 LOGIN and LOGOUT as User ........................................................................................... 35
7.2.2 Navigation via the Web Interface....................................................................................... 36
7.2.3 Enter or Changing Data ..................................................................................................... 37
7.2.3.1 Changing of Data in 8029NTS (WebGUI: Device)...................................................................... 37
7.2.3.2 Changing of Data in 8024GPS (WebGUI: Sync Source) ............................................................ 38
7.2.4 Plausibility Check during Input........................................................................................... 39
7.3 Description of the Tabs............................................................................................40
7.3.1 GENERAL Tab................................................................................................................... 40
7.3.2 NETWORK Tab.................................................................................................................. 42
7.3.2.1 Host/Nameservice ...................................................................................................................... 42
7.3.2.1.1 Hostname .......................................................................................................................... 42
7.3.2.1.2 Use Manual DNS Entries................................................................................................... 43
7.3.2.1.3 DNS Server 1 to 3.............................................................................................................. 43
7.3.2.1.4 Use Manual Gateway Entries ............................................................................................ 43
7.3.2.1.5 Default Gateway IPv4........................................................................................................ 43
7.3.2.1.6 Default Gateway IPv6........................................................................................................ 43
7.3.2.1.7 Network Interface ETH0..................................................................................................... 44
7.3.2.1.8 Default Hardware Address (MAC) ..................................................................................... 44
7.3.2.1.9 Customer Hardware Address (MAC) ................................................................................. 45
7.3.2.1.10 DHCP ................................................................................................................................ 45
7.3.2.1.11 IPv4 Address ..................................................................................................................... 45
7.3.2.1.12 IPv4 Network Mask............................................................................................................ 45
7.3.2.1.13 Operation Mode................................................................................................................. 46
7.3.2.1.14 Maximum Transmission Unit (MTU) .................................................................................. 46
7.3.2.1.15 IPv6 ................................................................................................................................... 46
7.3.2.1.16 DHCP-IPv6........................................................................................................................ 46
7.3.2.1.17 IPv6 Address ..................................................................................................................... 47
7.3.2.1.18 IPv6 Subnet Prefix Lengh.................................................................................................. 47
7.3.2.1.19 VLAN (Activation Key necessary)...................................................................................... 47
7.3.2.2 Routing (Activation Key necessary)............................................................................................ 48
7.3.2.3 Routing File................................................................................................................................. 49
7.3.2.4 Management (Management-Protocols –HTTP, SNMP etc.)...................................................... 50
7.3.2.4.1 SNMPv2 / SNMPv3 (Activation Key required) ................................................................... 51
7.3.2.5 Time............................................................................................................................................ 52
7.3.2.5.1 Synchronization Protocols (Time Protocols –NTP, SNTP etc.)......................................... 52
7.3.2.5.2 SINEC H1 time datagram (Activation Key necessary)....................................................... 53
7.3.3 NTP Tab............................................................................................................................. 54
7.3.3.1 System Info................................................................................................................................. 55
7.3.3.2 Kernel Info .................................................................................................................................. 55
7.3.3.3 Peers .......................................................................................................................................... 56
7.3.3.4 Server Configuration................................................................................................................... 57

TABLE OF CONTENTS
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7.3.3.4.1 Synchronization Source (General / Synchronization source)............................................. 57
7.3.3.4.2 NTP Syslog Messages (General / Log NTP Messages to Syslog) .................................... 57
7.3.3.4.3 Crystal Operation............................................................................................................... 58
7.3.3.4.4 Broadcast / Broadcast Address ......................................................................................... 59
7.3.3.4.5 Broadcast / Authentication / Key ID ................................................................................... 59
7.3.3.4.6 Additional NTP SERVERS................................................................................................. 59
7.3.3.5 Extended NTP Configuration...................................................................................................... 60
7.3.3.5.1 Suppression of unspecified NTP Outputs (Block Output when Stratum Unspecified)........ 60
7.3.3.5.2 NTP Timebase................................................................................................................... 61
7.3.3.6 Restart NTP................................................................................................................................ 62
7.3.3.7 Configuring the NTP Access Restrictions................................................................................... 63
7.3.3.7.1 NAT or Firewall.................................................................................................................. 63
7.3.3.7.2 Blocking Unauthorised Access .......................................................................................... 64
7.3.3.7.3 Allowing Client Requests................................................................................................... 64
7.3.3.7.4 Internal Client Protection / Local Network Threat Level..................................................... 64
7.3.3.7.5 Addition of Exceptions to Standard Restrictions................................................................ 65
7.3.3.7.6 Access Control Options ..................................................................................................... 66
7.3.3.8 Symmetric Key............................................................................................................................ 67
7.3.3.8.1 Why Authentication?.......................................................................................................... 67
7.3.3.8.2 How is Authentication used in the NTP Service?............................................................... 67
7.3.3.8.3 How is a key created? ....................................................................................................... 68
7.3.3.8.4 How does authentication work?......................................................................................... 68
7.3.3.9 Autokey....................................................................................................................................... 69
7.3.4 ALARM Tab (Activation Key necessary)............................................................................ 70
7.3.4.1 Syslog Configuration................................................................................................................... 70
7.3.4.2 E-mail Configuration................................................................................................................... 71
7.3.4.3 SNMP Configuration / TRAP Configuration ................................................................................ 72
7.3.4.4 Alarm Messages......................................................................................................................... 73
7.3.5 DEVICE Tab....................................................................................................................... 74
7.3.5.1 Device Information...................................................................................................................... 74
7.3.5.2 Hardware Information ................................................................................................................. 74
7.3.5.3 Restoring the Factory Defaults Settings ..................................................................................... 75
7.3.5.4 Restarting the Module (Reboot Device / Hardware Reset)......................................................... 76
7.3.5.5 Image Update for Module 8029NTS (WebGUI: Device) ............................................................. 77
7.3.5.5.1 Select Image Update......................................................................................................... 78
7.3.5.5.2 Installation Image Update.................................................................................................. 79
7.3.5.1 Upload von Anwender SSL-Server-Zertifikat (Upload Certificate) .............................................. 79
7.3.5.2 Customized Security Banner ...................................................................................................... 80
7.3.5.3 Product Activation....................................................................................................................... 81
7.3.5.4 Diagnostics Function .................................................................................................................. 82
7.3.5.5 Passwords (Master/Device)........................................................................................................ 82
7.3.5.6 Downloading Configuration Files / SNMP MIB............................................................................ 83
7.3.6 GPS SYNC SOURCE Tab................................................................................................. 84
7.3.6.1 Time and Status.......................................................................................................................... 84
7.3.6.2 Set Sync Source Time................................................................................................................ 85
7.3.6.3 Time Zone Offset........................................................................................................................ 86
7.3.6.4 Daylight Saving Time (DST) ....................................................................................................... 87
7.3.6.5 Receiption Quality....................................................................................................................... 88
7.3.6.6 Reception Mode.......................................................................................................................... 89
7.3.6.7 Receiver Position........................................................................................................................ 89
7.3.6.8 SyncON / SyncOFF .................................................................................................................... 90
7.3.6.9 Module Info................................................................................................................................. 91
7.3.6.10 Module Reset.............................................................................................................................. 91
7.3.6.11 Factory Default ........................................................................................................................... 92
7.3.6.12 H8 Firmware Update (Sync Source)........................................................................................... 93
7.3.6.13 Sync Source Errors..................................................................................................................... 94
7.3.6.14 Sync Status OC.......................................................................................................................... 96
8SSH and Telnet Basic Configuration.........................................................................97
9Fault Analysis / Troubleshooting...............................................................................98

TABLE OF CONTENTS
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hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
9.1 Error Patterns..........................................................................................................98
9.1.1 Complete Failure................................................................................................................ 98
9.1.2 No GPS Reception / No Synchronization .......................................................................... 98
9.1.3 No Daylight Saving Time / Summer Time Switchover..................................................... 100
9.2 Support by Company hopf ...................................................................................100
10 Maintenance..............................................................................................................101
10.1 General Guidelines for Cleaning............................................................................101
10.2 Cleaning the Housing............................................................................................101
11 Technical Data ..........................................................................................................102
11.1 General –8029NTS/GPS......................................................................................102
11.2 Module 8029NTS ..................................................................................................103
11.3 Module 8024GPS..................................................................................................104
11.4 Power Supplies .....................................................................................................105
11.5 Dimensions –DIN Rail Housing.............................................................................107
12 Factory Defaults of Time Server 8029NTS/GPS......................................................108
12.1 Factory Default Values of Module 8029NTS (Device)............................................108
12.1.1 Network............................................................................................................................ 108
12.1.2 NTP.................................................................................................................................. 109
12.1.3 ALARM............................................................................................................................. 110
12.1.4 DEVICE............................................................................................................................ 110
12.2 Factory Default Values of Module 8024GPS (Sync Source)..................................111
13 Glossary and Abbreviations ....................................................................................112
13.1 NTP-specific Terminology......................................................................................112
13.2 Tally Codes (NTP-specific)....................................................................................112
13.2.1 Time-specific expressions................................................................................................ 113
13.3 Abbreviations.........................................................................................................114
13.4 Definitions .............................................................................................................115
13.4.1 DHCP (Dynamic Host Configuration Protocol) ................................................................ 115
13.4.2 NTP (Network Time Protocol).......................................................................................... 115
13.4.3 SNMP (Simple Network Management Protocol).............................................................. 116
13.4.4 TCP/IP (Transmission Control Protocol / Internet Protocol) ............................................ 116
13.5 Accuracy & NTP Basic Principles..........................................................................116
14 List of RFCs...............................................................................................................118
15 List of Open Source Packages Used.......................................................................119

GPS -NTP TIME SERVER 8029NTS/GPS
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hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
1 GPS - NTP Time Server 8029NTS/GPS
By GPS time synchronization and the worldwide used time protocol NTP (Network Time
Protocol) the Time Server 8029NTS/GPS turns into a highly accurate NTP Stratum 1 Time
Server. It is used for the synchronization of computers and industrial networks.
The Time Server supports the following synchronization protocols:
•NTP (incl. SNTP)
•Daytime
•Time
•SINEC H1 time datagram (Activation Key necessary)
The Time Server is integrated into a compact DIN Rail housing and is characterized by its
easy and simple operation, although it offers a broad range of functions. Some of the
practice-oriented functionalities are:
•Complete parameterisation via protected WebGUI access
All required settings for operation can be executed via a password proteded WebGUI
also giving an overview of the status of the Time Server 8029NTS/GPS.
•Monitoring of GPS antenna circuit
An error message is generated when there is a short circuit in the GPS antenna circuit
or an open antenna input.
•Automatic switch-over of summer/winter time (initial setting required)
After initial commissioning there is no user intervention for a correct summer/winter
time changeover for the following years required.
•Automatic handling of the leap second
Insertion of a leap second in UTC time is automatically recognised and executed by
the the Time Sever 8029NTS/GPS.

GPS -NTP TIME SERVER 8029NTS/GPS
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A superior security is guaranteed via available coding procedures such as symmetric keys,
autokey and access restrictions and deactivation of non-used protocols.
Diffferent Managemenet and Monitoring Functions are availabe as options (e.g. SNMP,
SNMP-Traps, E-mail notification, Syslog-messages including MIB II and private Enterprise
MIB).
Currently the Time Server 8029NTS/GPS offers following unlockable functions:
•SINEC H1 time datagram
•Static Routing Table
•Alarming and management features
•IEEE 802.1Q Tagged VLAN
A few other basic functions of the Time Server 8029NTS/GPS:
•The Time Server 8029NTS/GPS operates as NTP Server with Stratum 1
•Easy operation via WebGUI
•Status LEDs on the front panel
•Sync status output via optical coupler
•High freewhell accuracy provided by GPS-supported regulation of the internal quartz
basis
•Completely maintance-free system
•SyncOFF Timer (reception failure bypassing) for operation free of fault messages
even based on difficult reception conditions
•Redundant multiple validation of the synchronization signal for an error-free and
leapfree signal evaluation
•Maintefnace-free, buffered backup clock for at least three days
Software supplied:
• hmc Remote Software for the operating systems:
oMicrosoft® Windows® NT/2000/XP/VISTA/7 (32/64 Bit)
oMicrosoft® Windows® Server 2003/2008 (32/64 Bit)
oLinux® (32/64 Bit)
oOracle® Solaris SPARC/x86
oIBM AIX® (ab Version 5.2)
oHP-UX 11i (RS232 support only for PA-RISC architecture)

GPS -NTP TIME SERVER 8029NTS/GPS
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Overview of the functions of the network Time Server 8029NTS/GPS:
Ethernet Interface
•Auto negotiate
•10 Mbps half-/full duplex
•100 Mbps half-/full duplex
Time Protocols
•NTPv4 Server
•NTP Broadcast Mode
•NTP Multicast Mode
•NTP Client for additional NTP Servers (redundancy)
•SNTP Server
•NTP Symmetric Key Encryption
•NTP Autokey Encryption
•NTP Access Restrictions
•PPS Time Source
•SINEC H1 time datagram (Activation Key necessary)
•RFC-867 DAYTIME Server
•RFC-868 TIME Server
Network Protocols
•HTTP/ HTTPS
•DHCP
•Telnet
•SSH
•SNMPv3, SNMP Traps (MIB II, Private Enterprise MIB) (Activation Key necessary)
•NTP (including SNTP)
•SINEC H1 time datagram (Activation Key necessary)
Configuration Channel
•HTTP/HTTPS WebGUI (browser-based)
•Telnet
•SSH
•External LAN configuration tool ( hmc –Network-Configuration-Assistant)
• hmc Remote connection
Additionally Freatures
•E-mail notification (Activation Key necessary)
•Syslog messages to external syslog server (Activation Key necessary)
•Routing (Activation Key necessary)
•Update via TCP/IP
•Fail-safe
•Watchdog circuit
•System management
•Customized security banner

SYSTEM STRUCTURE
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2 System Structure
Views of the Timer Server 8029NTS/GPS with AC and DC power supply.
2.1 Housing
The Time Server 8029NTS/GPS is built into a closed aluminium profile housing for DIN Rail
mounting according to DIN EN 60715 TH35.
2.2 Power Supply
Currently the following types of power supplies are available:
•AC/DC wide range power supply 100-240V AC / 110-250V DC
Type: AC-M05-D
•DC power supply 18-36V DC (nominal voltage 24V DC)
Type: DC24-M15-D
•DC power supply 36-76 VDC (nominal voltage 48V DC)
Type: DC48-M15-D
2.3 Functional Overview of the Front Panel Elements
This chapter describes the individual front panel elements and their functions.
2.3.1 Reset-(Default) Button
The Reset-(Default) Button is accessible with a thin object through the
small drilling in the front panel next to the "Reset" inscription" (see
Chapter 4.3 Reset-(Default) Button).

SYSTEM STRUCTURE
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2.3.2 NTP Status LEDs (NTP/Stratum/Accuracy)
NTP-LED (Green)
NTP sewrvice of the Time Server 8029NTS/GPS
On
Standard, running
Off
Not running
Stratum1-LED
(Green)
The NTP service of the Time Server 8029NTS/GPS
works with:
On
Stratum 1
Flashes
Stratum 2-15
Off
Stratum 16 (no synchronization of NTP Clients)
Accuracy-LED
(Green)
The NTP service of the Time Server 8029NTS/GPS
works with accuracy of:
On
high
Flashes
medium
Off
low
2.3.3 USB-Port
On specific problems the USB connection can be used for a system recovery
after consulting the hopf Support.
2.3.4 LAN Interface ETH0
10/100-LED
(Green)
Description
Off
10 MBit Ethernet detected
On
100 MBit Ethernet detected
lnk/act-LED
(Yellow)
Description
Off
No LAN connection to a network
On
LAN connection available
Flashes
Network activity at ETH0 (transmission / reception)
Pin No.
Assignment
1
Tx+
2
Tx–
3
Rx+
4
Not in use
5
Not in use
6
Rx–
7
Not in use
8
Not in use

SYSTEM STRUCTURE
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hopf Elektronik GmbH
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2.3.4.1 MAC-Address for ETH0
Each LAN interface is clearly identifiable on the Ethermet via a unique MAC Address
(hardware address).
The MAC address given for the LAN interface ETH0 can be read in WebGUI of the appropriate
board or be evaluated via the hmc Network Configuration Assisant. The MAC address is
uniquely assigned for each LAN interface by the company hopf Elektronik GmbH.
The factory set MAC address for the Time Server 8029NTS/GPS is stated
on a sticker laterally positioned on the exterior of the housing of the device.
hopf Elektronik GmbH MAC addresses begin with 00:03:C7:xx:xx:xx.
2.3.5 Sync Status Optical Coupler
Sync Status Optical Coupler
3-pole pluggable Connector
Pin
Signal
1
Collector
2
n.c.
3
Emitter
2.3.6 Sync Status LEDs
Sync Status LEDs
LED
Meaning
RD
Status LED red
GN
Status LED green
The Status LEDs on the front panel signal the current (synchronization) status of the Sync
Source (here Module 8024GPS). The meanings of the LEDs are as follows:
LED RD
- Red
LED GN
- Green
Status
STATUS
Code
Off
ON
Sync (radio-synchronous) with quartz regulation
SYNC
Off
Flashes
Sync (radio-synchronous) - SyncOFF timer running
SYOF
Flashes
ON
Sync (radio-synchronous) - simulation mode
SYSI
Flashes
Flashes
Quarz - SyncON timer running
QUON
ON
ON
Quarz - time was set via synchronization source
QUEX
ON
Flashes
Quarz - time set manually or after reset
QUSE
ON
Off
No valid time
INVA
Off
Off
No operating voltage / faulty
---
3Hz
Off
General Module Error (PCID)
INVA
3Hz
Invert
3Hz
User-Settings missing
(Difference time / ST-WT changeover)
INVA

SYSTEM STRUCTURE
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2.3.7 GPS Antenna Input
GPS Antenna
BNC connector
GPS
Antenna input
The antenna input provides an internal monitoring for “short-circuit“and
“open input“.

FUNCTION PRINCIPLE
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3 Function Principle
This chapter describes the function principle of the Time Server 8029NTS/GPS and the
internal relations between the different functional groups.
3.1 Block Diagram
•Internal Supply Voltage
The individual functional components are supplied with the required operating voltage
via the implemented power supply unit.
•Firmware Update
A H8 firmware update of the Sync Souce (here Module 8024GPS) is completey
controlled by Module 8029NTS.
The update file for Module 8024GPS is loaded into Module 8029NTS via LAN through
the WebGUI. Then Module 8029NTS performs the update of the Sync Source (here
Module 8024GPS) independently.
•Management
The entire control of the Sync Source (here Module 8024GPS) is done by Module
8029NTS. All data of the Sync Source, indicated via WebGUI, are demanded cyclically
by Module 8029NTS from the Sync Source (here Module 8024GPS) or if necessary.
These data are then prepared for the display in WebGUI. After activation settings for
the Sync Source are transferred to the Sync Source immediately.
•High Precision Time
The Sync Source provides a high-precision time information and the according
synchronization status to Module 8029NTS. This time and status information is used
for synchronization of the NTP service and if applicable other signal generations
running on 8029NTS.

FUNCTION PRINCIPLE
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3.2 Function 8029NTS (WebGUI: Device)
The Module 8029NTS is the "heart" of the Time Server 8029NTS/GPS. A complete LINUX
operating system is running on this Module providing all functions such as NTP, WebGUI etc.
The Module also controls the connected Sync Source (here Module 8024GPS). Using the
high-precise time information of Module 8024GPS the NTP service running on Module
8029NTS is also adjusted with high-precision. Thus the Module 8029NTS is a very precise
NTP STRATUM 1 - Time Server.
3.3 Function 8024GPS (WebGUI: Sync Source)
The Module 8024GPS is in principle an independent Module with GPS receiver and its own
µProcessor. In synchronous status it provides a high-precise time information to the Module
8029NTS. The control of Module 8024GPS in this system is completely done via Module
8029NTS. Parameters required by Module 8024GPS or provided are entered into WebGUI of
Module 8029NTS or rather be output.
The Module 8024GPS has an own failsafe memory in which all required data for operation
after generation via WebGUI are stored.
As the data of the Sync Source for the WebGUI indication need to be received by the Module
8029NTS at first, it is no real-time indication in WebGUI.

SYSTEM BEHAVIOUR
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4 System Behaviour
This chapter describes the behaviour of the system in special operational phases and
conditions.
4.1 Boot Phase
The boot process of the Time Server 8029NTS/GPS starts after turning on the system or a
reset.
During the boot process the Module 8029NTS boots its LINUX operation system and is
therefore not available via LAN.
The end of the boot process is reached when the green NTP LED is shining and thereby
indicates that the NTP service on Module 8029NTS has been started and enabled. The boot
process lasts approx. 1-1.5 minutes.
4.2 NTP Adjustment Process (NTP/Stratum/Accuracy)
NTP is a regulation process. After start of the NTP services, automatically processed during
booting, the Time Server 8029NTS/GPS requires approximately 5-10 minutes after
synchronization of the Sync Source (Status "SYNC") until NTP is set to the high accuracy of
the Sync Source (here Module 8024GPS) and reaches the optimized operation condition of
STRATUM = 1 and ACCURACY = High.
The decisive factors here are accuracy of the synchronization source and the appropriate
synchronization condition of the Sync Source.
4.3 Reset-(Default) Button
The Time Server 8029NTS/GPS can be reset by the Reset-(Default) Button behind the front
panel of the board. The Reset-(Default) Button is accessible with a thin object through the
small drilling in the front panel.
The button triggers different functions depending on how long it is pressed:
Duration
Function
< 1 sec.
No action
1 - 9 sec.
After releasing a systemwide hardware reset is triggered
>= 10 sec.
After releasing a FACTORY DEFAULT followd by a REBOOT is
triggered after approx. 10 seconds

SYSTEM BEHAVIOUR
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4.4 Firmware Update
The Time Server 8029NTS/GPS is a multi processor system. For this reason a firmware
update always consists of a so called Software SET including up to three (3) program releases
defined by the SET version needed to be loaded into the board.
ATTENTION
In order to select the correct image update, Chapter 7.3.5.5.1 Select
Image Update must be checked!
An update is a critical process.
The device should not be turned off during the update and the network
connection to the device not be interrupted.
All programs of a SET needed to be uploaded to ensure a defined
operation condition.
The progam releases assigned to a SET version may be taken from the
release notes of the software SETs of the Time Sever 8029NTS/GPS.
4.4.1 Firmware Update 8029NTS (WebGUI: Device)
The general process of a software update of Module 8029NTS is described below:
For selection of the correct update set the identifier 8029NTS-V2 has to be
observed obligatory. The extension V2 describes a hardware version of
8029NTS.
8029NTS-V2 can be recognized:
•By the imprint stated on the front panel " hopf 8024GPS / 8029NTS"
•By the label on the housing cover "8029NTS-V2"
•In WebGUI at the Web-banner "8029NTS-V2"
The firmware update 8029NTS-V2 has to be performed as a SET.
The software package contained in the ZIP archive has to be unpacked. The following steps
have to be executed in the following sequence:
1. Image Update 8029NTS-V2
2. H8 Firmware Update 8029NTS-V2 (optional)
3. H8 Firmware Update 8024GPS

SYSTEM BEHAVIOUR
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Image Update
1. Log in as Master in WebGUI of the board.
2. Select in Device tab the menu item Image Update.
3. Select the file with the file .img via the selection window.
4. The selected file is shown in the selection window.
5. The update process is started with the button Upload now.
6. In WebGUI the successful file transfer and writing to the Module is indicated.
7. In WebGUI the successful update is indicated after 2-3 minutes with the request to
release a reboot of the board.
8. After activation and successful reboot of the board the image update process is
finished.
H8 Update (Optional –only when in WebGUI available)
9. Log in as Master in WebGUI of the board.
10. Select in the Device tab the menu item H8 Firmware Update.
11. Select the file with the file extension .mot for Module 8029 via the selection window.
12. The selected file is shown in the selection window.
13. The update process is started with the button Upload now.
14. In WebGUI the successful file transfer to the Module is indicated.
15. Now the update of the board automatically starts after a few seconds.
16. After successful update the board automatically reboots.
17. After approx. 2 minutes the H8 update process is finished and the board is again
accessible via WebGUI.
4.4.2 Firmware Update 8024GPS (WebGUI: Sync Source)
H8 Firmware Update 8024GPS
1. Log in as Master in WebGUI of the board.
2. Select in the GPS SYNC SOURCE tab the menu item H8 Firmware Update.
3. Select the file with the file extension .mot for Module 8024 via the selection window.
4. The selected file is shown in the selection window.
5. The update process is started with the button Upload now.
6. In WebGUI the successful file transfer to the Module is indicated.
7. Now the update of the board automatically starts after a few seconds.
8. After successful update the board automatically reboots.
9. After approx. 2 minutes the H8 update process is finished and the board is again
accessible via WebGUI.