Meinberg LANTIME/GPS Manual de usuario

Technical Information

Operating Instructions

LANTIME / GPS

ETX 1HE

Contact Information

Meinberg Funkuhren GmbH & Co KG

Auf der Landwehr 22

D-31812 Bad Pyrmont

Telephone: +49 (0) 52 81 / 9309-0

Telefax: +49 (0) 52 81 / 9309-30

Internet: http://www.meinberg.de

E-Mail: info meinberg.de

Bad Pyrmont, 7 Februar 2007

Table of Contents

Quick Start 8

Network Timeserver with GPS synchronized time base 9

The Modular System LANTIME 10

Supported Network Services 11

Additional Features and Options 12

User Interface 12

Options 12

Why to use a Network Timeserver 13

Network Time Protocol (NTP) 13

NTP Target 14

NTP-Client Installation 14

GPS satellite controlled clock 16

GPS167 Features 17

Time Zone and Daylight Saving 17

Mounting the GPS Antenna 18

Assembly with CN-UB/E 19

Antenna Short-Circuit 19

Booting the GPS receiver 20

Booting the Single Board Computer 20

Configuration User Interface 22

The Front Panel Layout 23

FAIL LED 23

LOCK LED 23

LC Display 23

MENU Key 23

CLR/ACK Key 23

NEXT Key 23

INC Key 23

Configuration via LC Display 24

The menus in Detail 25

Root Menu 25

Menu RECEIVER POS 26

Menu SV CONSTELLATION 26

Menu SV POSITION 27

Menu SETUP 27

SETUP LAN PARAMETERS 28

ENABLE OUTPUTS 28

SETUP TIME ZONE 29

SETUP DAYLIGHT SAV ON/OFF 30

SETUP SERIAL PORT 31

SETUP SERIAL STRING TYPE 31

SETUP IRIG SETTINGS (option) 32

SETUP INITIAL POSITION 33

SETUP INITIAL TIME 33

IGNORE LOCK 33

INITIATE COLD BOOT 34

INITIATE WARM BOOT 34

ANTENNA CABLE 34

Resetting Factory Defaults of the GPS 34

The LANTIME configuration interfaces 35

The WEB interface 36

Configuration: Main Menu 38

Configuration: Ethernet 39

Network interface specific configuration 41

IPv4 addresses and DHCP 41

IPv6 addresses and autoconf 41

High Availability Bonding 42

Additional Network Configuration 43

Configuration: Notification 44

Alarm events 45

E-mail messages 45

Windows Popup Messages 46

SNMP-TRAP messages 46

VP100/NET wall mount display 46

User defined Alarm scripts 47

NTP Client Monitoring 47

Alarm messages 48

Configuration: Security 49

Password 50

HTTP Access Control 50

SSH Secure Shell Login 51

Generate SSL Certificate for HTTPS 52

NTP keys and certificates 53

SNMP Parameter 53

Configuration: NTP 54

NTP Authentication 57

NTP AUTOKEY 59

Configuration: Local 62

Administrative functions 63

User Management 64

Administrative Information 65

Software Update 67

Automatic configuration check 68

Get Diagnostics Information 69

Web interface language 69

Configuration: Statistics 70

Statistical Information 71

Configuration: Manual 72

The Command Line Interface 74

CLI Ethernet 75

CLI Notification 78

Alarm events 78

E-mail messages 79

Windows Popup Messages 79

SNMP-TRAP messages 80

VP100/NET wall mount display 80

NTP Client Monitoring 81

CLI Security 82

Password 82

SSH Secure Shell Login 82

Generate SSL Certificate for HTTPS 83

NTP keys and certificates 83

CLI NTP Parameter 84

CLI NTP Authentication 85

CLI NTP Autokey 85

CLI Local 86

Administrative functions 86

User Management 87

Administrative information 87

Software Update 89

SNMP Support 90

Configuration over SNMP 92

Examples for the usage of the SNMP configuration features 93

Further configuration possibilities 94

Send special timeserver commands with SNMP 94

Configuration of the timeserver with SNMP: Reference 96

SNMP Traps 99

SNMP Trap Reference 100

Attachment: Technical Information 101

Skilled/Service-Personnel only: Replacing the Lithium Battery 101

Technical Specifications LANTIME Multipac 101

Safety instructions for building-in equipment 102

CE-Label 102

Rear Panel Connectors 103

SUB-D Connector Assignments 103

Time Sync Error Relay 104

Technical Specification 104

Rear View LANTIME 105

Technical Specifications GPS167 106

Accuracy of frequency TCXO quartz (standard) 107

Technical Specifications GPS167 Antenna 108

Signal Description GPS167 109

Rear Connector Pin Assignments GPS167 110

Technical Specifications LAN CPU 111

Rear Connector Pin Assignments LAN CPU 112

VGA, Keyboard Connector Pin Assignments 112

Technical Specifications Power Supply 113

Timecode (option) 114

Abstract 114

Principle of Operation 114

Block Diagram Timecode 114

IRIG Standard Format 115

AFNOR Standard Format 116

Assignment of CF Segment in IEEE1344 Code 117

Generated Time Codes 118

Selection of Generated Time Code 118

Outputs 119

AM - Sine Wave Output 119

PWM DC Output 119

Technical Data 119

USB Stick 120

Menu Structure 120

Menu Configuration Files 121

Menu Script Files 122

Keypad locking 122

Time Strings 123

Format of the Meinberg Standard Time String 123

Format of the GPS167 Capture String 124

Format of the SAT-Time String 125

Format of the Uni Erlangen String (NTP) 126

Format of the NMEA 0183 String (RMC) 128

Format of the ABB SPA Time String 129

Format of the COMPUTIME Time String 130

Menu Quick Reference 131

Declaration of Conformity 132

Manual VP100/NET Display configuration 133

Global Configuration File 135

Global Option File 136

Third party software 137

Operating System GNU/Linux 137

Samba 137

Network Time Protocol Version 4 (NTP) 138

mini_httpd 138

GNU General Public License (GPL) 139

Reference 143

Quick Start

- Approximately 30 seconds after power up the lower display line shows "NTP: not

sync" instead of "NTP: not ready"

SERVER NOT READY Wed, 18.11.1998

NTP: Not Ready UTC 10:03:30

==>

NORMAL OPERAT ON Wed, 18.11.1998

NTP: not sync UTC 10:04:10

- If the GPS receiver remains asynchronous (FAIL LED is still on after 12 minutes)

the number of satellites in view and the good satellites are to check (press

MENU twice) The antenna has to be installed without any obstructions to the

sky

SATELL TE CONSTELLAT ON

n view: 9 Good: 8 Sel: 3 19 26 13

- Enter TCP/IP address, netmask and default gateway:

- Press Menu four times to enter the LAN PARAMETERS setup menu

- Press CLR/ACK to see the TCP/IP address first

SETUP: LAN PARAMETERS

TCP/ P ADDRESS: DHCP 172.16.3.40

- Press CLR/ACK once again to be able to enter the IPv4 TCP/IP address

- With NEXT the respective digit is to select while INC is used to set the value

- To take over the changes it is necessary to press CLR/ACK again

- A wildcard '*' is displayed to confirm the changes

- Pressing NEXT, the netmask and the default gateway can be entered in the

same way

- Pressing MENU following by INC causes the changes to become active

Are you sure ? Press ...

NC -> YES MENU -> NO

NOTE: All settings are related to the first Ethernet connection (ETH0)

After this all further settings can be done via network interface, either by using a

WEB browser or a Telnet Session

Default user: root

Default password: timeserver

Network Timeserver with GPS synchronized time base

LANTIME (Local Area Network Timeserver) provides a high precision time base

to a TCP/IP network (Stratum-1-Server) The NTP (Network Time Protocol) is used

to synchronize all NTP clients with the reference The several LANTIME variants

differ from each other by the time reference A GPS receiver, a DCF77 receiver or an

IRIG time code receiver can be integrated as an internal reference as well as a

combination of these references (hybrid system) External references are also

possible LANTIME/GPS is a set of equipment composed of a satellite controlled

clock GPS167, a single-board computer with integrated network board and a power

supply, all installed in a metal 19" modular chassis and ready to operate A simplified

LINUX operating system is installed on the single-board computers flash disk Four

push buttons and a 2 x 40 character LC display can be used to configure and monitor

the time server After the network connection has been established the time server can

also be configured and monitored remotely from a workstation via TELNET or FTP

An integrated HTTP server enables access to the LANTIME by using an ordinary

WEB browser

The Modular System LANTIME

LANTIME is a set of equipment composed of a satellite controlled clock GPS167,

a single-board computer SBC GEODE 266 MHz with integrated network card, and a

power supply unit T60B, all installed in a metal desktop case and ready to operate

The interfaces provided by LANTIME are accessible via connectors in the rear panel

of the case Details of the components are described below

LOC K

C LR /A C K N EXT IN C

FA I L

M EN ULI GH T

LANTI ME

satellite controlled NTP time ser er

USB

Front View LANTIME/GPS

The implemented NTPD distributes the reference time from the GPS receiver cyclic

in the network Information on the NTPD is monitored on the LC display or can be

inquired via the network

The installation of LANTIME is very easy for the system/network administrator The

network address, the netmask and the default gateway have to be configured from the

front panel of LANTIME The network address or the equivalent name of LANTIME

has to be shown to all NTP clients in the TCP/IP network

As well as NTP the Linux system also supports a number of further network

protocols: HTTP(S), FTP, SSH and Telnet Because of this remote configuration or

status requests can come from any WEB browser This access via the network can be

deactivated Changes in the receiver status, errors or other important events are

logged either on the local Linux system or on an external SYSLOG-Server In

addition messages can be sent to a data center via SNMP traps or automatically

generated e-mails where they can be recorded Furthermore all alarm messages can be

displayed by the large display VP100/20/NET that is accessed via network

connection In order to avoid a service interruption several LANTIME NTP servers

can be installed in the same network to obtain redundancy

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