Comtech EF Data KP-10 - Manual (Page 26)

KP-10 External Keypad Revision 1
Operation MN/KP10.IOM
16
3.1.1 C HARACTER F ORMAT
The ASCII character format used requires 11 bits/character:
! 1 start bit
! 7 information bits
! 1 parity bit
! 2 stop bits (Note: Default is “7e2”.)
3.1.2 S
TART
C
HARACTER
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 start characters are as follows:
! Commands: <
! Responses: >
3.1.3 D
EVICE
A
DDRESSES
The device address is the address of the specific device that is designated to receive or
respond to a transmitted command.
Table 8. Device Addresses
Valid Device Addresses
Length 1 to 3 characters
Range 1 to 255
When using the KP-10 external keypad, the global address “*” is used to create a string
output response displayed on the external keypad. This KP-10 global address causes the
accessed device to respond, regardless of its specific address.
CAUTION
Do not confuse the KP-10 global address (*) with the global address of zero referred to
in the M&C System Monitor Software User’s Guide. The zero global address causes
the accessed device to accept commands without responding.