GPS NTP Time Servers

IRIG-B to NTP Converter

IRIG-B to NTP/SNTP & Serial RS232 Converter

IRIG-B:

Inter-range instrumentation group time codes, commonly known as IRIG timecodes, were created by the TeleCommunications Working Group of the Inter-Range Instrumentation Group, the standards body of the Range Commanders Council. Work on these standards started in October 1956, and the original standards were accepted in 1960.

The original formats were described in IRIG Document 104-60, later revised and reissued in August 1970 as IRIG Document 104-70, upgraded later that year as the IRIG Document to the status of a Standard, IRIG Standard 200-70. The latest version of the Standard is IRIG Standard 200-04.

The different time codes defined in the Standard have alphabetic designations. A, B, D, E, G, and H are the standards currently defined by 200-04.C was in the original specification, but was replaced by H.

The main difference between codes is their rate, which varies between one pulse per second and 10,000 pulses per second.

IRIG time code

Code

Bit rate

Bit time

Bits per frame

Frame time

Frame rate

A

1000 Hz

1 ms

100

100 ms

10 Hz

B

100 Hz

10 ms

100

1000 ms

1 Hz

C

2 Hz

0.5 s

120

1 minute

1/60 Hz

D

1/60 Hz

1 minute

60

1 hour

1/3600 Hz

E

10 Hz

100 ms

100

10 s

0.1 Hz

G

10 kHz

0.1 ms

100

10 ms

100 Hz

H

1 Hz

1 s

60

1 minute

1/60 Hz

NTP(Network Time Protocol):

Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.

A less complex implementation of NTP, using the same protocol but without requiring the storage of state over extended periods of time, is known as the Simple Network Time Protocol (SNTP). It is used in some embedded devices and in applications where high accuracy timing is not required.

In operation since before 1985, NTP is one of the oldest Internet protocols in use. NTP was originally designed by David L. Millsof the University of Delaware, who still develops and maintains it with a team of volunteers.

Product Description(IRIG-B to NTP Converter):

SY-B-N-01 Irig-B to NTP Converter can transform IRIG-B DC(B002) to NTP/SNTP  time code and finally to the server to synchronize the time.

Time input: BNC or RS-485/422 block terminal

Time output: NTP/SNTP(RJ-45 connector IEEE 802.3 - shielded data line) & RS-232(DB9 Connector)

Time accuracy: LAN: ±1ms

iIRIG-B Time Format Support: IRIG-B DC(B002)

WAN: ±1~10ms

The maximum servers it can support: 22nos

Power input: 24V DC

Fuse: - 1 electronic

Output: - +5V / 3A

Total load ≤15 Watt

Other specs of IRIG-B to NTP Converter:

Work Temperature: –20~ 70℃
Storage:  -40~ 125℃
Humidity:  85% max.

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* You can also contact us for a quote by E-mail: sales@buenoptic.net

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