COM0 / COM1 S
ERIAL
I
NTERFACES
6842 GPS Slim Line System - V09.01
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hopf
Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]
5.3.3 NTP (Network Time Protocol)
NTP or also xNTP is a batch of programs to synchronize different computers and operating
systems with network support. It is the standard for the Internet Protocol TCP/IP (RFC-
1305). Source code and documentation are available as freeware in the internet under the
following address:
The data string must be set in mode byte 2 / Bit2-Bit0 as
hopf
standard
string (see
chapter 5.1.2.9
).
Source code and documentation are available as freeware under:
http://www.ntp.org
5.3.3.1 Specified Settings
Automatic:
no
Required:
The following values have to be entered:
parameter of transmission:
•
baud rate 9600
•
8 data bit
•
parity no
•
1 stop bit
mode of transmission:
•
hopf
Standard String
•
UTC as time base
•
output with second advance
•
control character (STX...ETX) enabled
•
with control character at second change
•
output time and date
•
output every second
Blocked:
no
5.3.3.2 Structure
NTP is according to the
hopf
Standard String (6021), (see
Chapter 5.3.2
).
5.3.3.3 Status
The Status is according to the
hopf
Standard String (6021), (see
Chapter 5.3.2
).
5.3.3.4 Example
See
Chapter 5.3.2.4
hopf
Standard String (6021) with UTC as Time Base (3. ASCII
character)
