Start Of Packet; Target Address; Address Delimiter; Instruction Code - Comtech EF Data LPOD PS 1.5 Installation And Operation Manual

LPOD C-, X-, or Ku-Band Outdoor Amplifier / Block Up Converter (BUC)
Serial Interface Operation

Start of Packet

Target Address

> 0-9
ASCII code 62 ASCII codes 48-57
(1 character) (4 characters)
Target-to-Controller example:
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)

5.3.5.4 Instruction Code

This three-character alphabetic sequence is intended to be a mnemonic of its operational function. This aids in the readability of the
message, should you display it in its raw ASCII form. For example, "GAC" means "Global Amplifier Configuration"; "IPA" means "IP
Address", etc. Both upper case and lower case alphabetic characters may be used (A-Z and a-z, ASCII codes 65-90 and 97-122).
Target-to-Controller
Address Delimiter Instruction Code
/ A-Z, a-z
ASCII code 47 ASCII codes 65-90,
(1 character) (3 characters)
(QUERY RESPONSE) >0135/MUT=1{CR}{LF}
5–7
Code Qualifier
=, ?, !, or *
ASCII codes
97-122 61,63,33, or 42
(1 character)
MN-LPOD
Revision 14
Optional Arguments End of Packet
Carriage Return {CR},
Line Feed {LF}
(From 0 to n ASCII codes 13,10
characters) (2 characters)