Extron Electronics MGP Pro Series User Guide - Manual (Page 115)

MGP Pro Series • Reference Information 109
2. If necessary, enter the password at the password prompt.
Connection to the MGP Pro via the Ethernet can be password protected. There are two
levels of password protection: administrator and user.
• A person logged on as an administrator has full access to all MGP Pro capabilities
and editing functions.
• Users can select test patterns, mute or unmute the output, select a blue screen,
and view all settings with the exception of passwords. By default, the MGP Pro is
delivered with both passwords set to the carriage return character.
When you are logged in, the MGP Pro returns either Login Administrator or Login
User . No further prompts are displayed until you disconnect from the MGP Pro.
Escape character and <Esc> key
Many SIS commands include the keyboard <Esc> key. Consequently, some confusion may
exist between the
Escape character and the <Esc> key.
When Telnet is first started, the utility advises that the Escape character is “ Ctrl+] .” This
means that the Telnet Escape character is a key combination: the <Ctrl> key and the <]>
key pressed simultaneously. Pressing these keys displays the Telnet prompt while leaving
the connection to the MGP Pro intact.
Local echo
Once your computer is connected to the MGP Pro, by default Telnet does not display your
keystrokes on the screen. SIS commands are entered blindly, and only the SIS responses
are displayed on the screen. To command Telnet to show all keystrokes, enter
set local_
echo at the Telnet prompt before you open the connection to the MGP Pro.
With local echo turned on, keystrokes and the MGP Pro responses are displayed on the
same line.
Example:
1*1!In1 Out1 All ,
where 1*1! is the SIS command and In1 Out1 All is the response.
Note that 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.
Local echo can be turned off by entering
unset local_echo at the Telnet prompt. If your
computer is connected to the MGP Pro and you need to access the Telnet prompt to turn
local echo off, enter the
Escape sequence (<Ctrl + ] > ).
Setting carriage return-line feed
Unless commanded otherwise, Telnet transmits a line feed character only (no carriage
return) to the connected MGP Pro when you press the <Enter> key. This is the correct
setting for SIS communication with the MGP Pro. The Telnet
set crlf command forces
Telnet to transmit carriage return and line feed characters when <Enter> is pressed.
However, if
crlf is set, the SIS link with the MGP Pro does not function properly.
Closing the link to the MGP Pro
To close the link to the MGP Pro, access the Telnet prompt by entering the escape
sequence (<Ctrl + ]> ). At the Telnet prompt, enter close .
Help
For Telnet command definitions, enter ? at the Telnet prompt.