Comtech EF Data CSAT-5060 - Packet Structure; Start of Packet; Table 6-3. Master-To-Slave; Table 6-4. Slave-To-Master

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.