Meinberg LANTIME M600 Technical Information Page 128
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Generated Time Codes
Besides the amplitude modulated sine wave signal, the board also provides
unmodulated DC-Level Shift TTL output in parallel. Thus six time codes are
available.
a) B002: 100 pps, PWM DC signal, no carrier
BCD time-of-year
b) B122: 100 pps, AM sine wave signal, 1 kHz carrier frequency
BCD time-of-year
c) B003: 100 pps, PWM DC signal, no carrier
BCD time-of-year, SBS time-of-day
d) B123: 100 pps, AM sine wave signal, 1 kHz carrier frequency
BCD time-of-year, SBS time-of-day
e) AFNOR: Code according to NFS-87500, 100 pps,
AM-Sine wave signal, 1kHz carrier frequency,
BCD time-of-year, complete date, SBS time-of-day,
Signal level according to NFS-87500
f) IEEE1344: Code according to IEEE1344-1995, 100 pps,
AM sine wave signal, 1kHz carrier frequency,
BCD time-of-year, SBS time-of-day, IEEE1344
extensions for date, timezone, daylight-saving
and leap second in control functions (CF) segment.
also see table 'Assignment of CF segment in IEEE1344 mode'
Selection of Generated Time Code
The time code to be generated can be selected by Menu Setup IRIG-settings or the
GPS Monitorprogram. DC-Level Shift Codes (PWM-signal) B00x and modulated
sine wave carrier B12x are always generated simultaneously. Both signals are
provided at the VG64-Connector, i.e. if code B132 is selected also code B002 is
available. This applies for the codes AFNOR NFS 87-500 and IEEE1344 as well.
The TFOM field in IEEE1344 code is set dependent on the 'already sync'ed' character
('#') which is sent in the serial time telegram. This character is set, whenever the
preconnected clock was not able to synchronize after power up reset. The 'time figure
of merit' (TFOM) field is set as follows.
Clock synchronized once after power up: TFOM = 0000
Clock not synchronized after power up: TFOM = 1111
For testing purposes the output of TFOM in IEEE1344 mode can be disabled. The
segment is set to all zeros then.
128
- Technical Information 1
- Operating Instructions 1
- M300 / GPS 1
- Bad Pyrmont, 16. Juli 2008 2
- Table of Contents 3
- Quick Start 8
- The Modular System LANTIME 10
- Supported Network Services 12
- User Interface 13
- Network Time Protocol (NTP) 14
- NTP Target 15
- GPS170 Features 16
- Time Zone and Daylight Saving 16
- Mounting the GPS Antenna 17
- Assembly with CN-UB/E 18
- Booting the GPS receiver 19
- are +-5 ms after 20
- Configuration User Interface 21
- The menus in Detail 22
- Root Menu 22
- Menü: Reference Time 24
- Setup GPS Receiver Parameters 25
- Set Antenna Cable Length 25
- Init GPS Receiver 26
- Init GPS Position 27
- Init GPS Time 27
- Info GPS 28
- GPS Status & Version 28
- GPS Receiver Position 28
- GPS Satellite Constallation 29
- Setup GPS Outputs 29
- GPS Enable Outputs 29
- Serial Outputs 30
- for DAYLIGHT SAV 31
- Menu: Time Service 32
- Menu: external NTP 32
- Menu: Stratum of local clock 32
- Menu: Restart NTP 33
- Programmable pulse (Option) 34
- SETUP POUT X 34
- Timer mode 35
- Single Pulse 35
- Cyclic mode 36
- PPS, PPM, PPH Modes 36
- Menu: TIME CODE IRIG (Option) 37
- Menu: Network 38
- Setup Global Configuration 39
- Setup Network Interfaces 40
- Setup Network Ipv4 Parameter 40
- Menu: Setup Ipv6 Parameter 41
- Menu: Link Mode 41
- Menu: Setup Services 42
- Menu: System 42
- Set time zone 42
- left part of 43
- The WEB interface 45
- Configuration: Main Menu 47
- Configuration: Ethernet 48
- IPv4 addresses and DHCP 50
- IPv6 addresses and autoconf 50
- High Availability Bonding 51
- Configuration: Notification 53
- Alarm events 54
- E-mail messages 54
- Windows Popup Messages 55
- SNMP-TRAP messages 55
- VP100/NET wall mount display 55
- User defined Alarm scripts 56
- NTP Client Monitoring 56
- Alarm messages 57
- Configuration: Security 58
- Password 59
- HTTP Access Control 59
- SSH Secure Shell Login 60
- NTP keys and certificates 62
- SNMP Parameter 62
- Configuration: NTP 63
- LANTIME/GPS : 96 h 65
- LANTIME/PZF : 0,5 h 65
- LANTIME/RDT: 0,5 h 65
- LANTIME/NDT: 96 h 65
- NTP Authentication 66
- NTP AUTOKEY 68
- Configuration: Local 71
- Administrative functions 72
- User Management 73
- Administrative Information 74
- Software Update 76
- Automatic configuration check 77
- Get Diagnostics Information 78
- Web interface language 78
- Configuration: Statistics 79
- Statistical Information 80
- Configuration: Manual 81
- The Command Line Interface 83
- CLI Ethernet 84
- CLI Notification 87
- CLI Security 91
- CLI NTP Parameter 93
- CLI NTP Authentication 94
- CLI NTP Autokey 94
- CLI Local 95
- Administrative information 96
- SNMP Support 99
- Configuration over SNMP 101
- SNMP Traps 109
- SNMP Trap Reference 110
- CE-Label 112
- Connector Assignments 113
- Rear Panel Connectors 113
- RS232 TERMINAL 114
- Time Sync 115
- Oscillator options 117
- Signal Description GPS170 119
- Tastatur 122
- Timecode (option) 124
- Abstract 124
- Principle of Operation 124
- Block Diagram Timecode 124
- IRIG Standard Format 125
- AFNOR Standard Format 126
- Generated Time Codes 128
- AM - Sine Wave Output 129
- PWM DC Output 129
- Technical Data 129
- Time Strings 130
- Format of the SAT-Time String 132
- Konformitätserklärung 140
- Lantime M300/GPS 140
- Global Configuration File 143
- Global Option File 144
- Third party software 145
- Operating System GNU/Linux 145
- Reference 151
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