Comtech EF Data LPOD - 5.1.4.1 Start of Packet; 5.1.4.2 Target Address; 5.1.4.3 Address Delimiter

LPOD Outdoor Amplifier / Block Up Converter (BUC) Revision 9
Serial-based Remote Product Management MN-LPOD
5–7
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,
Line Feed
ASCII codes
13,10
(2 characters)
Example: >0412/MUT=1{CR}{LF}
5.1.4.1 Start of Packet
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:
 Controller-to-Target: This is ‘less-than’ the character '<' (ASCII code 60).
 Target-to-Controller: This is the ‘greater-than’ character '>' (ASCII code 62).
5.1.4.2 Target Address
Up to 9,999 devices can be uniquely addressed. In EIA-232 applications this value is set to 0. In EIA-485 applications, the permissible
range of values is 1 to 9999.
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.
6B
5.1.4.3 Address Delimiter
This is the ‘forward slash’ character ' / ' (ASCII code 47).