Comtech EF Data CLC-10 - Manual (Page 39)

CLC-10 Comtech LPOD Controller Handheld Terminal M&C Accessory Revision 3
Serial-Based M&C using the CLC-10 MN-CLC10
3–7
3.4.4 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}
3.4.4.1 Start of Packet
 Controller-to-Target: This is ‘less-than’ the character '<' (ASCII code 60).
 Target-to-Controller: This is the ‘greater-than’ character '>' (ASCII code 62).
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.
3.4.4.2 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.