Format of the sysplex-1 time string – Meinberg PZF600 User Manual
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Format of the SYSPLEX-1 Time String
The SYSPLEX1 time string is a sequence of 16 ASCII characters starting with the SOH
(Start of Header) ASCII controll character character and ending with the LF (line feed,
ASCII Code 0Ah) character. The format is:
<SOH>ddd:hh:mm:ssq<CR><LF>
The letters printed in italics are replaced by ASCII numbers whereas the other characters
are part of the time string. The groups of characters as defined below:
<SOH>
Start of Header (ASCII control character)
ddd
day of year (001..366)
hh:mm:ss the current time:
hh
hours
(00..23)
mm minutes
(00..59)
ss
seconds
(00..59, or 60 while leap second)
q
Quality indicator
(space) Time Sync (GPS lock)
(?) no Time Sync (GPS fail)
<CR>
Carriage-return (ASCII code 0Dh)
The start bit of carriage-return is transmitted synchronous with the
rising edge of the PPS pulse.
<LF>
Line-feed (ASCII code 0Ah)