Comtech EF Data LPOD Series - Start of Packet; Target Address; Address Delimiter

Low Power Outdoor (LPOD) Amplifier/Block Up Converter (BUC)
Revision 15
Serial Interface Operation 5–7 MN-LPOD
Target-to-Controller
Start of Packet Target Address Address Delimiter Instruction Code Code Qualifier
Optional
Arguments
End of Packet
>
ASCII code 62
(1 character)
0-9
ASCII codes 48-57
(4 characters)
/
ASCII code 47
(1 character)
A-Z, a-z
ASCII codes 65-90, 97-122
(3 characters)
=, ?, !, or *
ASCII codes
61,63,33, or 42
(1 character)
(From 0 to n
characters)
Carriage Return {CR},
Line Feed {LF}
ASCII codes 13,10
(2 characters)
Target-to-Controller example: (QUERY RESPONSE) >0135/MUT=1{CR}{LF}
5.3.5.1 Start of Packet
These characters are used to provide a reliable indication of the start of packet. They must not appear anywhere else in the body of the
message:
• Controller-to-Target: This is the “<” character (ASCII code 60). It is also known as the “less than” character.
• Target-to-Controller: This is the “>” character (ASCII code 62). It is also known as the “greater than” character.
5.3.5.2 Target Address
The Controller sends a packet with the address of a Target – the destination of the packet. When the Target responds,
the address used is the same address, to indicate to the Controller the source of the packet. The Controller does not
have its own address.
5.3.5.3 Address Delimiter
This is the forward slash character: / (ASCII code 47)