Symmetricom Time Server Serial or Telnet I/O Functions, Overview and Format, Func#, Field

4

Serial or Telnet I/O Functions

4.1Overview and Format

Shortly after power-up, the utility port will be ready to receive commands. To ensure the unit receives data input accurately, wait until the message Searching for Satellites... has been on the front panel before entering any serial or Telnet commands.

You can send data to, or request data from, the unit by sending serial or Telnet commands using ASCII character strings. The general form of these commands is:

F<FUNC#><Enter>
where:
F	=	ASCII character F
<FUNC#>	=	two-digit function number
<Enter>	=	input line terminator

More specifically, the data input and output formats are:

F<FUNC#>[<SP><FIELD>]<Enter> (input)

or

F<FUNC#>[<SP><FIELD>]<CR><LF> (output)

where:
F	=	ASCII character F
<FUNC#>	=	function number
<SP>	=	space
<FIELD>	=	data entry or request
<CR><LF>	=	output line terminator
[ ]	=	encloses a phrase that is repeated as often as
		necessary

Output strings are kept to fixed lengths whenever possible. This means that numeric values often contain many leading blanks. This user’s guide represents output strings in a fixed font. For example:

F60 prn 14 good enabled sig level= +21.37<CR><LF>

6000-100Ch4.fm Rev. D TimeVault™ User’s Manual 4-49