DXP HD 4K PLUS Series • SIS Configuration and Control
37
Error Responses
When the switcher receives a valid command, it executes the command and sends a
response to the host device. If the unit is unable to execute the command, it returns an error
response to the host.
Error codes
E01
— Invalid input number
E10
— Invalid command
E11
— Invalid preset number
E12
— Invalid output number
E13
— Invalid parameter
E14
— Not valid for this configuration
E17
— Invalid command for signal type
E18
— System or command timed out
E21
— Invalid room number
E22
— Busy
E24
— Privilege violation
E25
— Device not present
E26
— Maximum number of connections
exceeded
E27
— Invalid event number
E28
— Bad filename or file not found
Error response references
These references in the command and response tables note particular error responses to
that command. For example:
24
= Commands that give an
E24
(privilege violation) error if not administrator level
Connection Timeouts
An Ethernet link disconnects after a designated period of no communications. By default,
this timeout duration is 5 minutes (see the
this value).
NOTE:
Extron recommends periodically issuing query commands (see the
commands, beginning on page 52) to keep the connection active. If
there are long idle periods, Extron recommends disconnecting and reopening the
connection when another command must be sent.
Number of Connections
A DXP HD 4K PLUS Series switcher can have up to 200 simultaneous TCP connections,
including all http and Telnet connections. When the connection limit is reached, the switcher
accepts no new connections until some have been closed. No error message or indication
is given that the connection limit has been reached. To maximize performance, keep the
number of connections low and close unnecessary ones.
