Extron electronics DXP 1616 HD 4K, Руководство пользователя, Страница: 67 / 116

DXP HD 4K Series • SIS Configuration and Control 59
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
— Timeout (caused only by direct write
of global presets)
E21
— Invalid room number
E22
— Busy
E24
— Privilege violation
E25
— Device not present
E26
— Maximum number of connections
exceeded
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.
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
Port timeout commands on page 78 to change
this value).
NOTE:
Extron recommends periodically issuing query commands (see the Information
requests commands on page 77) 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 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.