Comtech EF Data CSAT-5060 - Page 41

CSAT-5060 C-Band Transceivers Revision 1
Appendix A MN/CSAT5060.IOM
A–3
A.3 Packet Structure
Table A-3. Master-to-Slave:
Start
of Packet
Device
Address
Address
Delimiter
Instruction
Code
Code
Qualifier
Optional
Arguments
End
of Packet
Character
< / = or ? Carriage Return
ASCII
Code
60 47 61 or 63
13
# Characters
1 4 1 3 1 n 1
Example: <0135/UAT=12.25{CR}
Table A-4. Slave-to-Master:
Start
of Packet
Device
Address
Address
Delimiter
Instruction
Code
Code
Qualifier
Optional
Arguments
End
of Packet
Character
> / =, ?, !, or * Carriage Return, Line Feed
ASCII
Code
62 47
61, 63, 33 or 42 13, 10
# Characters
1 4 1 3 1 From 0 to n 2
Example: >0135/UAT=07.75{CR}{LF}
A.3.1 Start Of Packet
Because this is used to provide a reliable indication of the start of packet, these two characters may not appear anywhere else within the
body of the message.
• Master to slave unit: This is the character: < = (ASCII code 61)
• Master to slave unit: This is the character: > = (ASCII code 62)