A-5
CrossPoint / MAV Matrix Switchers • Ethernet Connection
Escape character and Esc key
When Telnet is first started, the utility advises that the Escape character is ‘Ctrl+]’.
ManySIScommandsincludethekeyboard
E
key. Consequently, some confusion
may exist between the Escape character and the Escape key.
The Telnet Escape character is a key combination, the
key and the
key
pressed simultaneously, that returns you to the Telnet prompt while leaving the
connectiontotheCrossPointorMAVswitcherintact.
The Escape key is the
E
key on the computer keyboard.
Local echo
OnceconnectedtotheCrossPointorMAVswitcher,bydefault,Telnetdoesnot
displayyourkeystrokesonthescreen.SIScommandsaretypedinblindlyand
onlytheSISresponsesaredisplayedonthescreen.TocommandTelnettoshow
keystrokes, at the Telnet prompt, type set local_echoandthenpress[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!
istheSIScommand
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
andthenpressing[Enter]
attheTelnetprompt.IfyouareconnectedtotheCrossPointorMAVswitcherand
need to access the Telnet prompt to turn local echo off, type the Escape character
(
+
).
Set carriage return-line feed
Unlesscommandedotherwise,Telnettransmitsalinefeedcharacteronly(no
carriage return) to the connected switcher when you press the
key. This is
thecorrectsettingforSIScommunicationwiththeswitcher.TheTelnet set crlf
command forces Telnet to transmit carriage return and line feed characters when
ispressed,butifcrlfisset,theSISlinkwiththeswitcherdoesnotfunction
properly.
Close
To close the link to the switcher, access the Telnet prompt by typing the Escape
character (
+
). At the Telnet prompt, type closeandthenpress[Enter].
Help
For Telnet command definitions, at the Telnet prompt, type ?
andthenpress[Enter].
Quit
Exit the Telnet utility by typing quit
andthenpressing[Enter]attheTelnetprompt.
IfyouareconnectedtotheCrossPointorMAVswitcher,accesstheTelnetprompt
by typing the Escape character (
+
).
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