9.2 Command Set 67
Broadcast Mode – EXT. ASCII
Command: B5, O5
B5 configures the clock to broadcast from the main RS-232C port, the time-of-day as ASCII data
using an extended format prefaced with a time quality indicator (Q). O5 configures the clock to
broadcast the same data from the option RS-232C port. The start bit of a carriage-return is
transmitted on time. EXT. ASCII (or Extended ASCII) and adds a time quality indicator to the
end of the Standard ASCII time string.
Response:
C
Q yy ddd hh:mm:ss.000
Format: Q = Time quality indicator, and may be represented by:
= (a space, ASCII 32) meaning it is locked with maximum accuracy.
? = (ASCII 63) unlocked, accuracy not guaranteed
= (underline) graphically represents the location of an ASCII space
and is used for clarity only.
Broadcast Mode – ASCII plus QUAL
Command: B6, O6
B6 configures the clock to broadcast from the main RS-232C port the time-of-day as ASCII data
appended with a time quality indicator. O6 configures the clock to broadcast the same data from
the option RS-232C port. ASCII plus QUAL means Standard ASCII plus Time Quality Indicator.
Response: <soh>yyyy:ddd:hh:mm:ssQ
C
Format: soh = Hex 01 – the start bit of the soh character is transmitted on time.
Q = Time quality indicator. may be represented by:
= (a space, ASCII 32) locked, maximum accuracy
. = (ASCII 46) Error < 1 microsecond
* = (ASCII 42) Error < 10 microseconds
# = (ASCII 35) Error < 100 microseconds
? = (ASCII 63) Error > 100 microseconds