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Version: 1.06
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11.4. NTP Server
NTP stands for Network Time Protocol, an Internet standard protocol (built on top of
TCP/IP) that assures accurate synchronization to the millisecond.
The NTP Server represents a server dedicated to time synchronization.
First,
TB
OX
MS
connects to Internet (through an ISP connection) and then to the NTP
Server.
Example with a connection to Windows server through Ethernet
Examples of Servers:
time.windows.com
europe.pool.ntp.org
You will find valuable information, like lists of Servers with open access at:
www.ntp.org
public time server list
The organization pool.ntp.org proposes servers using DNS round robin, which make a
random selection from a pool of open access time servers. This is good enough when
working with
TB
OX
MS
.
Round Robin DNS technique is used when the number of access to a server is unpredictable,
to balance the use of IP addresses (load balancing technique).
11.4.1. Time
accuracy
When setting time,
TB
OX
MS
takes into account the propagation delay. This is particularly
important when connecting to the server via modem.
The precision is of 1 second.
Содержание TBOX MS
Страница 1: ...A Remote Terminal Unit User s Guide Technical specifications cabling...
Страница 7: ...Version 1 06 7 P P PR R RE E ES S SE E EN N NT T TA A AT T TI I IO O ON N N...
Страница 13: ...Version 1 06 13 H H HA A AR R RD D DW W WA A AR R RE E E...
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Страница 116: ...Version 1 06 116...
Страница 119: ...Version 1 06 119 18 2 Power Supplies References MS PS230V MS PSDCN MS PS48VN 230 V 48 24 VDC 48 VDC...
Страница 164: ...Version 1 06 164 Cabling to Current actuator Cabling to Voltage actuator OUT Actuator Feedback OUT 24 V OUT Actuator OUT...
Страница 165: ...Version 1 06 165 18 12 8 x Relay Outputs References MS RELAY 8 relay outputs isolated one by one...
Страница 168: ...Version 1 06 168 18 13 4 x Analog inputs isolated References MS 4AI420 4 analog inputs isolated one by one 4 20 mA...
Страница 177: ...Version 1 06 177...
Страница 178: ...Version 1 06 178 18 17 Serial Ports Reference MS SERIAL 2 x Serial Ports each port RS232 or RS485...
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Страница 183: ...Version 1 06 183 A A AP P PP P PE E EN N ND D DI I IX X XE E ES S S...
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