Bbc Message Formats - Spectracom SecureSync User Reference Manual

HH Hours (00-23)
MM Minutes (00-59)
SS Seconds (00-59) (00-60 for leap second)
Q Time Sync Status [as INPUT]
space = SYNC
'.' = SYNC
'*'=NOT IN SYNC
'#' = NOT IN SYNC
"?" = NOT IN SYNC
Q Time Sync Status [as OUTPUT]
space = Time error is less than time quality flag 1's threshold (TFOM < or = 3)
"." = Time error has exceeded time quality flag 1's threshold (TFOM = 4)
"*" = Time error has exceeded time quality flag 2's threshold (TFOM = 5)
"#" = Time error has exceeded time quality flag 3's threshold (TFOM = 6)
"?" = Time error has exceeded time quality flag 4's threshold OR a reference source is unavail-
able (TFOM >=7)
CR Carriage Return (ASCII Character 13)
LF Line Feed (ASCII Character 10)
The leading edge of the first character (
8.1.13

BBC Message Formats

8.1.13.1 Format BBC-01
This format is based on string ASCII characters, and is sent once per second. It provides year,
month, day, day of week, day of month, hours, minutes, and seconds.
Number of characters: 24 (including CRLF and '.')
E x a m p l e m e s s a g e :
T:ye:mo:da:dw:ho:mi:sc
Where:
T Indicates the synchronous moment for the time setting.
ye Year (00-99)
mo Month (01-12)
da Day of month (01-31)
SecureSync User Reference Guide
) marks the on-time point of the data stream.
CR
APPENDIX
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