Extron Electronics SMD 101 User Guide - Manual (Page 68)

The Command and Response tables list valid ASCII (for Telnet or RS-232) command codes,
the corresponding URL (uniform resource locator) encoded (for Web browsers) command
codes, the SMD 101 responses to the host, and a description of the command function or
the results of executing the command.
Symbol definitions
] = CR/LF (carriage return/line feed) (hex 0D 0A )
} =
Carriage return (no line feed, hex 0D )
(for URL-encoded commands, use the pipe
character, | , instead)
• = Space character ( %20 for web browser)
| = Pipe (vertical bar) character
*
= Asterisk character (which is a command character,
not a variable)
E = Escape key (hex
1B )
(use W instead of Esc for Web browsers)
NOTE: For web encoding only: data is directed to the specified port and must be
encoded (URL encoding) if it is non-alphanumeric. Change any non-alphanumeric
character (%, +, }) within the data section into the corresponding hexadecimal
equivalent, %xx, where xx represents the two-character hex byte. For example, a
space (hex: 20 ) is encoded as %20, and a plus sign (hex: 2B) is encoded as %2B.
Error Responses
When the SMD 101 is unable to execute the command, it returns an error response to the
host. The error response codes and their descriptions are as follows:
E10 Unrecognized command E24 Privilege violation
E12 Invalid port number E25 Device is not present
E13 Invalid parameter (number is out of
range)
E26 Maximum connections
exceeded
E14 Not valid for this configuration E28 Bad filename or file not found
E17 System timed out E30 Hardware failure
E22 Busy E31 Attempt to break port pass-
through when not set
62 SMD 101 • Remote Communication and Control