Optional Message Arguments; End Of Packet - Comtech EF Data CDM-800 Installation And Operation Manual

CDM-800 Gateway Router
Serial-based Remote Product Management
Character
!
(ASCII code 33)
*
(ASCII code 42)
#
(ASCII code 35)
6.2.2.6

Optional Message Arguments

Arguments are not required for all messages. Arguments are ASCII codes for the characters '0' to '9' (ASCII codes 48 to 57), period '.'
(ASCII code 46), and comma ',' (ASCII code 44).
6.2.2.7

End of Packet

Controller‐to‐Target: This is the 'Carriage Return' ([CR]) character (ASCII code 13).
Target‐to‐Controller: This is the two‐character sequence 'Carriage Return', 'Line Feed' ([cr][lf]) (ASCII codes 13 and 10). Both indicate
the valid termination of a packet.
Definition
If the Controller sends an instruction code that the Target does not recognize, the Target responds by echoing the invalid
instruction, followed by !
Example: CMD!
If the Controller sends the command to set a parameter to a particular value, and the value sent is valid BUT the router will
not permit that particular parameter to be changed at present, the Target acknowledges the message and responds with,
for example, CMD* (with message arguments).
If the Controller sends a correctly formatted command, BUT the unit is not in Remote Mode, it does not allow
reconfiguration and responds, for example, with CMD#.
6–7
Revision 1
MN-CDM800