Comtech EF Data CDM-570A Installation And Operation Manual page 382

CDM-570A/570AL Satellite Modem with Optional Packet Processor
CDM-570A/570AL ODU (Transceiver, BUC, LNB) Operation
In this context, the Carriage Return and Line Feed characters are considered printable. With one
exception, all messages from Controller-to-Target require a response – this will be either to return
data that has been requested by the Controller, or to acknowledge reception of an instruction to
change the configuration of the Target.
Start of
Packet
<
ASCII code 60
(1 character)
Example: <0135/TFQ=70.2345{CR}
Start of
Packet
>
ASCII code 62
(1 character)
Example: >0654/RSW=32{CR}{LF}
Target Address
Address Delimiter
/
ASCII code 47
(4 characters) (1 character)
Target Address
Address Delimiter
/
ASCII code 47
(4 characters) (1 character)
Controller-to-Target
Instruction Code
Code Qualifier
= or ?
ASCII codes
61 or 63
(3 characters)
(1 character)
Target-to-Controller
Instruction Code
Code Qualifier
=, ?, !, or *
ASCII codes
61, 63, 33, or
42
(3 characters)
(1 character)
10–4
MN-CDM570A
Revision 3
Optional
End of Packet
Arguments
Carriage
Return
ASCII code 13
(n characters)
(1 character)
Optional End of
Arguments Packet
Carriage
Return, Line
Feed
ASCII codes
(From 0 to n
13,10
characters)
(2 characters)