Remote Control; Establishing A Network (Ethernet) Connection; Connection Timeouts; Sis Commands - Extron electronics DXP 44 HD 4K PLUS Setup Manual

DXP HD 4K PLUS Series • Setup Guide (Continued)

Remote Control

You can send SIS commands over an Ethernet link (rear panel RJ-45 LAN port), USB (front panel Config port), or a serial
connection (rear panel Remote RS-232 port). The network connection procedure is described below. For information about the
serial and USB connections, as well as a complete list of the available SIS commands, see the DXP HD 4K PLUS Series User
Guide, available at www.extron.com.

Establishing a Network (Ethernet) Connection

To establish a network connection:
Open a TCP socket to port 23 using the switcher IP address.
1.
NOTE:
The factory default IP address is 192.168.254.254.
The switcher responds with a message consisting of the copyright date, the name of the product, firmware version, part
number, and the current date and time. For example, with an internet connection:
(c) Copyright 20
,
Ddd DD Mmm YYYY HH
NOTES:
• If the switcher is not password-protected, the device is now ready to accept SIS commands.
• If the switcher is password-protected, a password prompt appears.
If the switcher is password-protected, enter the password.
2.
If the password is accepted, the switcher responds with Login User or Login Administrator.
3.
If the password is not accepted, the Password prompt reappears (see your network admin for the assigned password).
4.

Connection timeouts

The Ethernet link times out and disconnects after a designated period of no communications. By default, this timeout value is set
to 5 minutes but the value can be changed.
NOTE:
Extron recommends leaving the default timeout at 5 minutes and periodically issuing the Query (Q) command to keep
the connection active or disconnecting the socket and reopening the connection when necessary.
Number of connections
A switcher can have up to 200 simultaneous TCP connections, including all HTTP sockets 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 of your switcher, keep the number of
connections low and close unnecessary open sockets.

SIS Commands

The switchers have SIS commands that you can use for operation and configuration. You can issue these commands from
a PC connected to the DXP serial port, USB port, or Ethernet port (see
information).
Host-to-switcher instructions
The switcher accepts SIS commands through the LAN port, the Remote (RS-232) port, or the front panel USB Config port. SIS
commands consist of one or more characters per command field. They do not require any special characters to begin or end
the command character sequence. Each switcher response to an SIS command ends with a carriage return and a line feed
(CR/LF = ), which signals the end of the response character string. A string is one or more characters.
]
NOTE:
Input and output numbers in commands can be entered as one-digit, two-digit, or three-digit numbers. All input and
output numbers are reported as two-digit numbers in the response.
Verbose mode
Telnet connections to a switcher can be used to monitor for changes that occur on the switcher, such as front panel operations
and SIS commands from other Telnet sockets or a serial port. For a Telnet session to receive change notices from the switcher,
the Telnet session must be in verbose mode 1 or 3 (see the
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