Comtech EF Data CDM-570A - Manual (Page 378)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
CDM-570A/570AL ODU (Transceiver, BUC, LNB) Operation Revision 2
10–4
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.
Controller-to-Target
Start of
Packet
Target
Address
Address
Delimiter
Instruction
Code
Code
Qualifier
Optional
Arguments End of Packet
<
ASCII code 60
(1 character) (4 characters)
/
ASCII code 47
(1 character) (3 characters)
= or ?
ASCII codes
61 or 63
(1 character)
(n characters)
Carriage
Return
ASCII code 13
(1 character)
Example: <0135/TFQ=70.2345{CR}
Target-to-Controller
Start of
Packet
Target
Address
Address
Delimiter
Instruction
Code
Code
Qualifier
Optional
Arguments
End of
Packet
>
ASCII code 62
(1 character) (4 characters)
/
ASCII code 47
(1 character) (3 characters)
=, ?, !, or *
ASCII codes
61, 63, 33, or
42
(1 character)
(From 0 to n
characters)
Carriage
Return, Line
Feed
ASCII codes
13,10
(2 characters)
Example: >0654/RSW=32{CR}{LF}