Comtech EF Data SLM-7650 Installation And Operation Manual page 145

SLM-7650 Satellite Modem
Remote Control Specifications
A.6 Command/Response
The command/response portion of the message contains a variable-length character
sequence that conveys command and response data.
If the modem receives a properly formatted message (command), which is addressed to it
with valid parameters, the message will be echoed back in the response as defined by the
protocol.
If the modem receives a message addressed to it, which does not match the established
protocol or cannot be implemented, a negative acknowledgment message is sent in
response. This message is:
(Error message for a recognized command, which cannot be implemented or has parameters, which
(Error message indicating that the parameter is hardware dependent and may not be changed remotely.)
A.7 End Character
Each message is ended with a single character, which signals the end of the message:
•
•
>add/?ER2_invalid parameter'cr''lf']
>ADD/?ER3_UNRECOGNIZABLE COMMAND'CR''LF']
(Error message for unrecognizable command or bad command syntax.)
>ADD/?ER4_MODEM IN LOCAL MODE'CR''LF']
(Modem in local error; send the REM command to go to remote mode.)
>ADD/?ER5_HARD CODED PARAMETER'CR''LF']
"cr"
Carriage return character for commands
"]"
End bracket for responses
are out of range.)
A–3
Revision 4
MN/SLM7650.IOM