Comtech EF Data CDM-840 - Manual (Page 151)

CDM-840 Remote Router Revision 2
Serial-based Remote Product Management MN-CDM840
7–5
The ‘<’ and ‘>’ characters indicate the start of packet. They may not appear anywhere else within the body of the message.
7.2.2.2 Target Address
Up to 9,999 devices can be uniquely addressed. In both EIA-232 applications, the permissible range of values is 1 to 9999. The target
addess is programmed into a target unit using the remote control port.
The controller sends a packet with the address of a target - the destination of the packet. When the target responds, the
address used is the same address, to indicate to the controller the source of the packet. The controller does not have its
own address
7.2.2.3 Address Delimiter
This is the “forward slash” character '/ ' (ASCII code 47).
7.2.2.4 Instruction Code
With the exception of the PING command (see Sect. 6.3.12), this is a three-character alphabetic sequence that identifies the message
subject.
Wherever possible, each instruction code is named to serve as a mnemonic for its intended operation – e.g., MLC for Management Link
Configuration, IPA for Management IP Address, etc. This aids in the readability of the message, should it be displayed in its raw ASCII
form.
Only upper case alphabetic characters may be used (‘A’ to ‘Z’, ASCII codes 65 - 90).