A.2.3 command/response, A.2.4 end character – Comtech EF Data KST-12025 User Manual
Page 113

KST-12025 Ku-Band Satellite Terminal
Remote Control Operation
Rev. 1
A–3
A.2.3 Command/Response
The command/response portion of the message contains a variable length character
sequence which conveys command and response data.
If the RFT-1225 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:
•
>add/?ER1_PARITY ERROR’cr’’lf’]
(Error message for EV, OD, or No parity errors.)
•
>add/?ER2_INVALID PARAMETER’cr’’lf’]
(Error message for a recognized command which cannot be implemented or has parameters
which are out of range.)
•
>add/?ER3_UNRECOGNIZABLE COMMAND’cr’’lf’]
(Error message for unrecognizable command or bad command syntax.)
•
>add/?ER4_CONVERTER IN LOCK MODE’cr’’lf’]
(Controller in Lock mode. Must go to Enable mode first.)
•
>add/?ER5_NOT SUPPORTED BY HARDWARE’cr’’lf’]
(Command is a valid command. However, it is not supported by the current hardware
configuration.)
Notes:
1. “add” is used to indicate a valid 1 to 3 character device address in the range
between 1 and 255.
2. Global address “*” is reserved for external keypad commands (i.e., for the
KP-10).
A.2.4 End
Character
Each message is ended with a single character which signals the end of the message:
•
“cr”
Carriage return character for commands
•
“]”
End bracket for responses
Note: For the external keypad (i.e., the KP-10), the end of message character is:
•
“cr]”
Carriage return and end bracket for commands
•
“]”
End bracket for responses