Comtech EF Data DT-4500 Series - Confirmation Response; Error Response; End of Message; Command Ending

DT-4500 Series C- and Ku-Band Down Converters MN/DT4500.IOM
Serial Interface Operation Revision 2
8–8
8.6.4 Confirmation Response
A confirmation will change the start character, and echo the Device Address and
Command. Any requested data is appended to the Command.
• EXAMPLE: >DEV/COM_xxx{cr}{lf}]
8.6.5 Error Response
If a converter cannot execute a Command or detects a protocol violation, an
error response is generated. An error is flagged by changing the “/” command
designator in the response to a "?".
Following the "?" error symbol are two characters which are unique error
symbols useful for computer analysis. The two error symbols are followed by a
text string explaining the error for the convenience of a human operator. This
document uses “ER” for the generic case examples response.
• EXAMPLE: >DEV?COM ER Error Message {cr}{lf}]
8.6.6 End of Message
End of message strings were devised in such a way that an orderly screen
presentation would result when converters are controlled by simple ASCII
terminals.
8.6.6.1 Command Ending
The end of message for a command is a carriage return. This document uses
“{cr}” for the carriage return.
• EXAMPLE: <DEV/COM_{cr}
8.6.6.2 Response Ending
End of message for a response is a carriage return ({cr}), line feed ({lf}), and a
right bracket (]): “{cr}{lf}]”
• EXAMPLE: >DEV/COM_{cr}{lf}]