Comtech EF Data HPCST-5000 - Manual (Page 155)

High-Power TWTA Satellite Terminals Programming Guide for Redundant Controller
Rev. 1 A–7
A.2.2.6 Parity
The parity and number of bits per character are the same for the response messages as
are those in the command messages.
A.2.2.7 Command Reject Argument
When a command is transmitted, the controller responds within 100 milliseconds to
indicate that one of the following has occurred:
•
Command was accepted and its execution has begun
•
Command was rejected
If a command is not accepted, a reject code is returned. Defined reject codes are listed in
Table A-2.
Table A-2. Command Not Executed Codes
ASCII Command Definition
a Command byte not recognized
b Illegal parameter or parameter out of range
c System in local mode
d Slow command being executed
e Hardware or software failure
f High voltage is off
g RF is Inhibited
h Reserved
i Invalid key or key sequence
j Change in setting can only be made locally
k A fault condition exists
l to z Reserved