Arbiter Systems 1200B, Operation Manual

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90 RS-232C Command Set
Broadcast Mode: EXT. ASCII
Command: B5, O5
Starts the time-of-day broadcast using an extended format prefaced with a time quality indicator (Q). B5
= COM1. O5 = COM2.
The start bit of a carriage-return is transmitted on time.
Response:
< CR >< LF > Q yy ddd hh:mm:ss.000
Where: < CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A
Q = quality indicator (with indicators shown below)
space = Hex 20, locked, maximum accuracy
?
= Hex 3F, unlocked, accuracy not guaranteed
yy = year
ddd = Julian day-of-year
hh = hour
mm = minute
ss.000 = second
= represents the location of an ASCII space, used for clarity only
Broadcast Mode: ASCII + QUAL
Command: B6, O6
Starts time-of-day broadcast appended with a time quality indicator. B6 = COM1. O6 = COM2.
Response:
< SOH > ddd:hh:mm:ssQ < CR >< LF >
Where: < SOH > = Hex 01 – the start bit of the SOH character is transmitted on time.
ddd = Julian day-of-year
hh = hour
mm = minute
ss = second
Q = quality indicator (with indicators shown below)
space = Hex 20, locked, maximum accuracy
.
= Hex 2E, Error < 1
µ
s
* = Hex 2A, Error < 10
µ
s
# = Hex 23, Error < 100
µ
s
? = Hex 3F, Error > 100
µ
s
< CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A