1 start of packet – Comtech EF Data LBC-4000 User Manual
Page 76
LBC-4000 L-Band Up/Down Converter System
Revision 4
Serial-based Remote Product Management
MN/LBC4000.IOM
6–4
Controller-to-Target (Issued Command or Query)
Start of Packet
Target Address
Address Delimiter
Instruction Code
Code Qualifier
Optional Arguments
End of Packet
<
ASCII code 60
(1 character)
0000 (default)
(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)
Packet Example:
<0000/RSH=30[cr]
Target-to-Controller (Response to Command or Query)
Start of Packet
Target Address
Address Delimiter
Instruction Code
Code Qualifier
Optional Arguments
End of Packet
>
ASCII code 62
(1 character)
0000 (default)
(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)
Packet Example:
>0000/BBU=107[cr][lf]
Detailed description of the packet components follow.
6.2.2.1 Start of Packet
• Controller‐to‐Target – This is the character ‘<’ (ASCII code 60).
• Target‐to‐Controller – This is the character ‘>’ (ASCII code 62).
The ‘<’ and ‘>’ characters indicate the start of packet. They may not appear anywhere else within the body of the message.