Arbiter Systems 1200B, Operation Manual, Page: 106 / 218

88 RS-232C Command Set
11.2.1 Installing Custom Broadcast Strings
The clock allows the user to construct and install two custom strings: Custom string A from COM 1 and
Custom String B from COM 2. For information on constructing, installing and using a custom broadcast
string, please see Section 11.3.
11.2.2 Broadcast Mode Commands
Broadcast Mode: INTERROGATE (Broadcast OFF)
Command: B0, O0
Stops the serial broadcast. B0 = COM1. O0 = COM2.
Response: < CR >< LF >
Where: < CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A
Broadcast Mode: ASCII STD
Command: B1, O1
Starts the time-of-day serial broadcast. B1 = COM1. O1 = COM2.
Response: < SOH > ddd:hh:mm:ss < CR >< LF >
Where: < SOH > = Start Of Header = Hex 01
ddd = Julian day-of-year
hh = hour
mm = minute
ss = second
< CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A
Broadcast Mode: VORNE STD
Command: B2, O2
Starts the Vorne Standard large format display serial broadcast. B2 = COM1. O2 = COM2.
Data is transmitted ahead of time and the BEL character is transmitted on time. The Vorne displays update
simultaneously upon receipt of the BEL character. Refer to Arbiter Systems Application Note 103 for more
information on using large format displays.
Response: 44hhmmss < CR >< LF >
55ddd < CR >< LF >
11nn < CR >< LF >
< BEL >< CR >< LF >
Where: 44hhmmss = Address 44 UTC/Local time (hour:minute:second)
55ddd
= Address 55 Julian day-of-year
11nn = Address 11 out-of-lock time in minutes
< BEL > = BEL = Hex 07; the on time mark
< CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A
The Vorne output changes depending upon installed options. One example: Power System Time, Frequency
and Phase Monitor (Appendix B.9)