1 packet structure, Packet structure, Start of packet – Comtech EF Data CSAT-5060 User Manual
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C-Band Transceiver
Revision 1
Remote Control
MN/CSAT5060.IOM
6–3
6.2.1
Packet Structure
Table 6-3. 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 6-4. 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}
6.2.1.1
Start Of Packet
Master to Slave: This is the character:
< = (ASCII code 61)
Master to Slave: This is the character:
> = (ASCII code 62)
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.