hopf Elektronik GmbH 7273RC User manual

_____________________________________________________________
Technical Manual
NTP/SINEC H1 LAN Board
Model 7273 and 7273RC
for housing versions
1U / 3U / DIN-Rail
ENGLISH
Version: 08.00 - 01.08.2018
_____________________________________________________________
SET
IMAGE
FIRMWARE
Valid for
Version: 08.xx
Version: 08.xx
Version: 02.xx
Industriefunkuhren

2 / 113 7273 and 7273RC NTP/SINEC H1 LAN Board - 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
7273 and 7273RC NTP/SINEC H1 LAN Board - V08.00 3 / 113
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 BOARD 7273 AND BOARD 7273RC (SEE CHAPTER 6.3.5.1 Device
Information AND CHAPTER 6.3.5.2 Hardware Information).
THE TWO DIGITS AFTER THE DOT IN THE VERSION NUMBER DESIGNATE
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 / 113 7273 and 7273RC NTP/SINEC H1 LAN Board - 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
7273 and 7273RC NTP/SINEC H1 LAN Board - V08.00 5 / 113
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
Contents Page
1Board Description 7273 and 7273RC...........................................................................9
1.1 Differences between the Boards 7273 and 7273RC................................................12
1.2 Overview of Assembly of Boards 7273(RC).............................................................12
1.2.1 DIP Switch DS1.................................................................................................................. 13
1.2.1.1 Functions of the DIP Switch DS1 for Board 7273....................................................................... 13
1.2.1.2 Functions of the DIP Switch DS1 for Board 7273RC.................................................................. 13
1.2.2 MAC Address for ETH0 ..................................................................................................... 13
1.3 Front Panels of Boards for the Different Housing Versions......................................14
1.3.1 Overview of Functions of the Front Panel Elements.......................................................... 14
1.3.1.1 SEND LED (not at DIN-Rail)....................................................................................................... 14
1.3.1.2 Reset Button (and Default Button).............................................................................................. 14
1.3.1.3 NTP Status LEDs (NTP/Stratum/Accuracy)................................................................................ 14
1.3.1.4 USB Female Connector (Host)................................................................................................... 15
1.3.1.5 RJ45 Socket (ETH0)................................................................................................................... 15
1.3.1.6 Board Status LEDs (Operation/ERROR/Status last 24h)............................................................ 15
1.3.1.6.1 General Function ............................................................................................................... 16
1.3.1.6.1 Function by Pressing the Reset Button.............................................................................. 16
1.3.1.6.2 Special Function for Update and Hardware Problems....................................................... 17
1.3.1.7 Option: Active 12V DC PPM (Minute Pulse)............................................................................... 17
1.3.2 Front Panel of Boards 7273 and 7273RC for 3U / 19" Racks ........................................... 18
1.3.3 Front Panel of Board 7273 for 1U / 19" Racks (Slim Line) ................................................ 19
1.3.4 Front Panel of Board 7273 for DIN Rail Mounting............................................................. 20
2System Behaviour of the Board 7273(RC).................................................................21
2.1 Boot Process...........................................................................................................21
2.2 NTP Regulating Phase (Stratum/Accuracy).............................................................21
2.3 Reset- (Default) Button............................................................................................21
2.3.1 Board Reset....................................................................................................................... 22
2.3.2 Set Board to Factory-Default-State (incl. LAN Parameter)................................................ 22
2.4 Firmware Update.....................................................................................................23
2.5 Board ERROR.........................................................................................................24
2.6 Activation of Functions (Activation Key)...................................................................25
3Implementing Board 7273(RC) in a modular hopf 19" Base System .....................26
3.1 Handling of Board / ESD Protection.........................................................................27
3.2 General - Setting the Board Number for the Use in Base System............................27
3.3 hopf Base Systems 6844, 6844RC, and 6855 –Only Board 7273 ........................28
3.3.1 Setting the Board Number for Base Systems 68xx ........................................................... 28
3.4 hopf Base System 7001 –Only Board 7273..........................................................29
3.4.1 Setting the Board Number for Base System 7001............................................................. 29
3.5 hopf Base System 7001RC –Only Board 7273RC................................................30
3.5.1 Setting the Board Number for Base 7001RC..................................................................... 30
3.5.2 NTP Accuracy Notification for Status- and Error Messages in System 7001RC............... 31
3.6 Creating the Network Connection............................................................................31

TABLE OF CONTENTS
6 / 113 7273 and 7273RC NTP/SINEC H1 LAN Board - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
4Network Configuration for ETH0 via LAN Connection through hmc ......................32
5Network Configuration for ETH0 via the Base System.............................................35
5.1 Input Functions of Base Systems 6844, 6844RC and 6855 (Board 7273 only)........37
5.1.1 Entry the Static IPv4 Address / DHCP Mode..................................................................... 37
5.1.2 Entry the Gateway Address ............................................................................................... 38
5.1.3 Entry the Network Mask..................................................................................................... 38
5.1.3.1 Entry the Network Mask - Systems 6844 and 6844RC............................................................... 38
5.1.3.2 Entry of Network Mask - System 6855........................................................................................ 38
5.1.4 Entry the Control Byte........................................................................................................ 39
5.1.4.1 Bit 7-0 - No function at present................................................................................................... 39
5.2 Base System 7001 Input Functions (Board 7273 only)............................................40
5.2.1 Entry the Control Byte........................................................................................................ 40
5.2.1.1 Bit 7-0 - No Function at Present.................................................................................................. 40
5.2.2 Entry the Static IPv4 Address / DHCP Mode..................................................................... 41
5.2.3 Entry the Network Mask..................................................................................................... 42
5.2.4 Entry the Gateway Address ............................................................................................... 42
5.3 Input Functions of Base System 7001RC (Board 7273RC only)..............................42
5.3.1 Entry the Static IPv4 Address / DHCP Mode..................................................................... 43
5.3.2 Entry the Gateway Address ............................................................................................... 43
5.3.3 Entry the Network Mask..................................................................................................... 44
5.3.4 Entry the Control-Byte........................................................................................................ 44
5.3.4.1 Bit 7-0 - No Function at Present.................................................................................................. 44
5.3.5 Entry the Parameterbyte 01 (no function at present)......................................................... 45
5.3.6 Entry the Parameterbyte 02 (no function at present)......................................................... 45
5.4 Configuration in DIN Rail Modules...........................................................................45
5.5 Configuration via hmc ( hopf Management Console) Remote Access..................45
6HTTP/HTTPS WebGUI –Web Browser Configuration Interface...............................46
6.1 Quick Configuration.................................................................................................46
6.1.1 Requirements..................................................................................................................... 46
6.1.2 Configuration Steps............................................................................................................ 46
6.2 General –Introduction.............................................................................................47
6.2.1 LOGIN and LOGOUT as a User ........................................................................................ 48
6.2.2 Navigation via the Web Interface....................................................................................... 49
6.2.3 Entry or Changing Data ..................................................................................................... 50
6.2.4 Plausibility Check during Input........................................................................................... 51
6.3 Description of the Tabs............................................................................................52
6.3.1 GENERAL Tab................................................................................................................... 52
6.3.2 NETWORK Tab.................................................................................................................. 53
6.3.2.1 Host/Nameservice ...................................................................................................................... 54
6.3.2.1.1 Hostname .......................................................................................................................... 54
6.3.2.1.2 Use Manual DNS Entries................................................................................................... 54
6.3.2.1.3 DNS Server 1 to 3.............................................................................................................. 54
6.3.2.1.4 Use Manual Gateway Entries ............................................................................................ 55
6.3.2.1.5 Default Gateway IPv4........................................................................................................ 55
6.3.2.1.6 Default Gateway IPv6........................................................................................................ 55
6.3.2.2 Network Interface ETH0.............................................................................................................. 56
6.3.2.2.1 Default Hardware Address (MAC) ..................................................................................... 56
6.3.2.2.2 Customer Hardware Address (MAC) ................................................................................. 56
6.3.2.2.3 DHCP ................................................................................................................................ 57
6.3.2.2.4 IPv4 Address ..................................................................................................................... 57

TABLE OF CONTENTS
7273 and 7273RC NTP/SINEC H1 LAN Board - V08.00 7 / 113
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
6.3.2.2.5 IPv4 Network Mask............................................................................................................ 57
6.3.2.2.6 Operation Mode................................................................................................................. 58
6.3.2.2.7 Maximum Transmission Unit (MTU) .................................................................................. 58
6.3.2.2.8 IPv6 ................................................................................................................................... 59
6.3.2.2.9 DHCP-IPv6........................................................................................................................ 59
6.3.2.2.10 IPv6 Address ..................................................................................................................... 59
6.3.2.2.11 IPv6 Subnet Prefix Lengh.................................................................................................. 59
6.3.2.2.12 VLAN (Activation Key necessary)...................................................................................... 60
6.3.2.3 Routing ....................................................................................................................................... 61
6.3.2.4 Routing File................................................................................................................................. 62
6.3.2.5 Management-Protocols –HTTP, SNMP etc. .............................................................................. 63
6.3.2.5.1 SNMPv2 / SNMPv3 ........................................................................................................... 64
6.3.2.6 Time............................................................................................................................................ 65
6.3.2.6.1 Time Protocols –NTP, SNTP etc. ..................................................................................... 65
6.3.2.6.2 SINEC H1 time datagram .................................................................................................. 65
6.3.2.6.3 Transmission point of SINEC H1 time datagram ............................................................... 66
6.3.3 NTP Tab............................................................................................................................. 66
6.3.3.1 System Info................................................................................................................................. 67
6.3.3.2 Kernel Info .................................................................................................................................. 68
6.3.3.3 Peers .......................................................................................................................................... 68
6.3.3.4 Server Configuration................................................................................................................... 69
6.3.3.4.1 General / Synchronization Source..................................................................................... 69
6.3.3.4.2 General / Log NTP Messages to Syslog............................................................................ 69
6.3.3.4.3 Crystal Operation............................................................................................................... 70
6.3.3.4.4 Broadcast / Broadcast Address ......................................................................................... 71
6.3.3.4.5 Broadcast / Authentication / Key ID ................................................................................... 71
6.3.3.4.6 Additional NTP SERVERS................................................................................................. 71
6.3.3.5 Extended NTP Configuration...................................................................................................... 72
6.3.3.5.1 Suppression of unspecified NTP outputs (Block Output when Stratum Unspecified) ....... 72
6.3.3.5.2 NTP Timebase................................................................................................................... 72
6.3.3.6 Restart NTP................................................................................................................................ 74
6.3.3.7 Access Restrictions / Configuring the NTP Service Restrictions................................................. 74
6.3.3.7.1 NAT or Firewall.................................................................................................................. 75
6.3.3.7.2 Blocking Unauthorised Access .......................................................................................... 75
6.3.3.7.3 Allow Client Requests........................................................................................................ 76
6.3.3.7.4 Internal Client Protection / Local Network Threat Level..................................................... 76
6.3.3.7.5 Addition of Exceptions to Standard Restrictions................................................................ 77
6.3.3.7.6 Access Control Options ..................................................................................................... 78
6.3.3.8 Symmetric Key and Autokey....................................................................................................... 79
6.3.3.8.1 Why Authentication?.......................................................................................................... 79
6.3.3.8.2 How is Authentication used in the NTP Service?............................................................... 80
6.3.3.8.3 How is a key created? ....................................................................................................... 80
6.3.3.8.4 How does authentication work?......................................................................................... 80
6.3.3.9 Autokey / Public Key Cryptography ............................................................................................ 81
6.3.4 ALARM Tab........................................................................................................................ 82
6.3.4.1 Syslog Configuration................................................................................................................... 82
6.3.4.2 E-mail Configuration ................................................................................................................... 83
6.3.4.3 SNMP Configuration / TRAP Configuration ................................................................................ 84
6.3.4.4 Alarm Messages......................................................................................................................... 85
6.3.5 DEVICE Tab....................................................................................................................... 86
6.3.5.1 Device Information...................................................................................................................... 86
6.3.5.2 Hardware Information ................................................................................................................. 86
6.3.5.3 Restoring the Factory Settings - Factory Defaults ...................................................................... 87
6.3.5.4 Restarting the Board (Reboot Device / Hardware Reset) ........................................................... 88
6.3.5.5 Image Update & H8 Firmware Update........................................................................................ 89
6.3.5.5.1 Select Image Update......................................................................................................... 90
6.3.5.5.2 Start Image Update............................................................................................................ 91
6.3.5.6 Upload SSL-Server-Certificate.................................................................................................... 92
6.3.5.7 Customized Security Banner ...................................................................................................... 92
6.3.5.8 Option FG7273/PPM: Minute Pulse Length (PPM)..................................................................... 93
6.3.5.9 Product Activation....................................................................................................................... 94
6.3.5.10 Diagnostics Function .................................................................................................................. 95
6.3.5.11 Passwords (Master/Device)........................................................................................................ 95

TABLE OF CONTENTS
8 / 113 7273 and 7273RC NTP/SINEC H1 LAN Board - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
6.3.5.12 Downloading Configurations / SNMP MIB .................................................................................. 96
7SSH and Telnet Basic Configuration.........................................................................97
8Technical Data ............................................................................................................98
9Factory Defaults of Board 7273(RC)........................................................................100
9.1 Network.................................................................................................................100
9.2 NTP.......................................................................................................................101
9.3 ALARM..................................................................................................................102
9.4 DEVICE.................................................................................................................102
10 Glossary and Abbreviations ....................................................................................103
10.1 NTP-specific terminology.......................................................................................103
10.2 Tally Codes (NTP-specific)....................................................................................103
10.2.1 Time-specific expressions................................................................................................ 104
10.3 Abbreviations.........................................................................................................105
10.4 Definitions .............................................................................................................106
10.4.1 DHCP (Dynamic Host Configuration Protocol) ................................................................ 106
10.4.2 NTP (Network Time Protocol).......................................................................................... 106
10.4.3 SNMP (Simple Network Management Protocol).............................................................. 107
10.4.4 TCP/IP (Transmission Control Protocol / Internet Protocol) ............................................ 107
10.5 Syslog Messages..................................................................................................108
10.6 Accuracy & NTP Basic Principles..........................................................................108
11 List of RFC.................................................................................................................110
12 List of Open Source Packages used .......................................................................111

BOARD DESCRIPTION 7273 AND 7273RC
7273 and 7273RC NTP/SINEC H1 LAN Board - V08.00 9 / 113
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
1 Board Description 7273 and 7273RC
The LAN Boards 7273 and 7273RC are Network Time Server (abbreviation NTS) for the use
in the modular hopf Systems 7001RC, 7001, 6844, 6844RC and 6855 and also in the non
modular DIN Rail Systems such as GPS Module 6875.
Generally the NTP/SINEC H1 LAN boards 7273 and 7273RC provide
functions and fields of applications completely backward compatible to the
boards 7271 and 7271RC.
The boards 7273 and 7273RC can be used as direct replacements for
already supplied boards 7271 or rather 7271RC. The successor boards
provide all functions, adjustment options and protocols as offered by the
boards 7271 and 7271RC.
The successor boards are suitable for extensions of hopf Clock Systems,
already operating boards 7271 or rather 7271RC (mixed operation) without
problems.
The boards 7273 and 7273RC are equipped with Ethernet interface (ETH0) 10/100 Base-T
(autosensing).
The boards 7273 and 7273RC supports operation in IPv4 and IPv6
networks.
The boards 7273 and 7273RC can be used by networks for highly accurate synchronisation
over NTP (Network Time Protocol) which is available worldwide.
The following synchronisations protocols are available:
•NTP (including SNTP)
•SINEC H1 time datagram
•Daytime
•Time
The network connection of the LAN boards 7273 and 7273RC can be installed at any desired
point on the network. Each board 7273/7273RC is a completely independent NTP Time
Server.
Depending on the respective hopf system, a number of these LAN Boards can be
implemented (even subsequently) in the Base System on a modular basis.
A variety of management and monitoring functions are available (e.g. SNMP traps, E-mail
notification, Syslog messages).
Increased security is freely available via optional encryption methods such as symmetric keys,
Autokey and access restrictions and the disabling of unused protocols.

BOARD DESCRIPTION 7273 AND 7273RC
10 / 113 7273 and 7273RC NTP/SINEC H1 LAN Board - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: in[email protected]
Extensive parameters are provided to suit the conditions of individual applications by means
of a variety of access / configuration channels.
•Depending on the clock system the accessibility of the LAN boards 7273 or 7273RC
can be adjusted in the network via the keyboard of the hopf base system or via a
hmc remote connection.
•The boards are completely configured over Ethernet by means of a web browser:
oHTTP/HTTPS WebGUI (Graphical User Interface)
oOr text-based menus over Telnet and SSH
•Various protocols (e.g. IPv4, http, https, Telnet etc.) are available for the Ethernet
connection.
The Board 7273(RC) currently has unlockable features that are described in Chapter 2.6
Activation of Functions (Activation Key):
•IEEE 802.1Q Tagged VLAN
Some basic features of the boards:
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
•RFC-867 DAYTIME Server
•RFC-868 TIME Server
Network Protocols
•HTTP/ HTTPS
•DHCP
•Telnet
•SSH
•SNMPv2 / SNMPv3, SNMP Traps (MIB II, Private Enterprise MIB)
•NTP (including SNTP)
•SINEC H1 time datagram