2-8 800TCU User’s Guide 800gench2.fm Rev. A
Installation and Operation
The time data is transmitted in ASCII in the following format:
DDDHHMMSSmmm<LT>
where
DDD is day of year
HH is hours
MM is minutes
SS is seconds
mmm is milliseconds
<LT> is the selected line terminator
The time data is transmitted immediately after receipt of the Time command. The data is
transmitted hundreds of days through milliseconds, followed by the line terminator if
required.
LINE TERMINATOR COMMAND: This command allows the user to choose the end of
transmission character(s). The choices are: “Carriage Return”, “Line Feed”, “Carriage
Return”, “Line Feed” and “No line terminator”. The selection is made by sending an
ASCII “L” followed by a number to the Model 800. The following table shows the line
terminator choices and the selection codes.
AUTO COMMAND: This command will place the unit in the automatic time output mode
and is not valid in translator mode. Time of year will output once per second. The output
string format is:
<SOH>DDD:HH:MM:SSQ<CR><LF>
where
<SOH> is start of header (Hex 01)
DDD is day of year
HH is hours
MM is minutes
SS is seconds
: is colon (Hex 3A)
Numeric Code Line Terminator Selection
0None
1 Carriage Return only
2 Line Feed Only
3 Carriage Return & Line Feed