4 packet structure, 1 start of packet – Comtech EF Data LPOD-R User Manual

Page 115

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LPOD-R Outdoor Amplifier / Block Up Converter (BUC)

MN-LPODR

Optional Serial-based Remote Product Management

Revision 1

5–5

5.3.4

Packet Structure

Controller-to-Target

Start of Packet

Target Address

Address Delimiter

Instruction Code

Code Qualifier

Optional Arguments

End of Packet

<

ASCII code 60

(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 or 63

(1 character)

(n characters)

Carriage Return

ASCII code 13

(1 character)

Example: <0412/MUT=1{CR}

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}

5.3.4.1 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: < (ASCII code 60)

• Target-to-Controller: > (ASCII code 62)

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