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WindoWall Pro Series • Reference Information 73

2. If necessary, enter the password at the password prompt.

Connection to the WindoWall 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 WindoWall 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 WindoWall

Pro is delivered with both passwords set to “carriage return.”

When you are logged in, the WindoWall Pro returns either Login Administrator or

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 WindoWall Pro intact.

Local echo

Once your computer is connected to the WindoWall 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 WindoWall

Pro.

With local echo turned on, keystrokes and the WindoWall 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 WindoWall 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 WindoWall Pro when you press the <Enter> key. This is the correct

setting for SIS communication with the WindoWall 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 WindoWall Pro does not function properly.

Closing the link to the WindoWall Pro

To close the link to the WindoWall Pro, access the Telnet prompt by entering the escape

sequence (<Ctrl +

]

). At the Telnet prompt, enter close.

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Extron electronics MGP Pro Series Guía de usuario Pagina 79

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