Comtech EF Data XSAT-7080 - Manual (Page 39)

XSAT7080 X-Band Transceiver Revision 0
Remote Control MN/XSAT7080.IOM
4-3
4.2.1 P
ACKET
S
TRUCTURE
Table 4-3. 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 4-4. 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}
4.2.1.1 S
TART
O
F
P
ACKET
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.