Extron electronics CrossPoint 450 Plus 2412 HV, User Manual

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A-5
CrossPoint / MAV Matrix Switchers • Ethernet Connection
Local echo
Once connected to the CrossPoint or MAV switcher, by default, Telnet does not
display your keystrokes on the screen. SIS commands are typed in blindly and
only the SIS responses are displayed on the screen. To command Telnet to show
keystrokes, at the Telnet prompt, type
set local_echo
and then press [Enter] before
you open the connection to the switcher.
With local echo turned on, keystrokes and the switcher’s responses are displayed
on the same line. For example: 1*1!In1 Out1 All, where 1*1! is the SIS command
and In1 Out1 All is the response.
With local echo turned on, all keystrokes are displayed, even those that should be
masked, such as the password entry. For example, when entering a password with
local echo turned on, you see a display such as a*d*m*i*n* , where admin is the
keyed in password and ***** is the masked response.
You can turn off local echo by typing unset local_echo and then pressing [Enter]
at the Telnet prompt. If you are connected to the CrossPoint or MAV switcher and
need to access the Telnet prompt to turn local echo off, type the Escape character
(
Ctrl
+
]
).
Set carriage return-line feed
Unless commanded otherwise, Telnet transmits a line feed character only (no
carriage return) to the connected switcher when you press the
Enter
key. This is
the correct setting for SIS communication with the switcher. The Telnet set crlf
command forces Telnet to transmit carriage return and line feed characters when
Enter
is pressed, but if crlf is set, the SIS link with the switcher does not function
properly.
Close
To close the link to the switcher, access the Telnet prompt by typing the Escape
character (
Ctrl
+
]
). At the Telnet prompt, type
close
and then press [Enter].
Help
For Telnet command definitions, at the Telnet prompt, type ? and then press [Enter].
Quit
Exit the Telnet utility by typing quit and then pressing [Enter] at the Telnet prompt.
If you are connected to the CrossPoint or MAV switcher, access the Telnet prompt
by typing the Escape character (
Ctrl
+
]
).