Comtech EF Data KP-10 - Manual (Page 28)

KP-10 External Keypad Revision 1
Operation MN/KP10.IOM
18
CAUTION
Do not use any global address when accessing the RSU unit with the KP-10.
3.1.6 E
ND
C
HARACTER
As stated previously, each message on the remote link begins with a start character and
ends with an end character
. The start and end characters are different for commands and
responses.
The end characters are as follows:
! Commands “cr”] (carriage return and end bracket)
! Responses ] (end bracket)
3.1.7 N EGATIVE R ESPONSES
If the terminal receives a message which does not match the established protocol or
cannot be implemented, a negative acknowledgment is sent in response.
Examples of negative responses include:
! >add/?ER1_PARITY ERROR'cr''lf']
(Error message for received 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']
(The command is a legal command, but is not supported by the current hardware
configuration.)