Extron electronic USP 507 Ethernet Connection, cont’d, Telnet tips, Escape character and Esc key

Ethernet Connection, cont’d

Telnet tips

It is not the intention of this manual to detail all of the operations and functionality of Telnet. However, some basic level of understanding is necessary for operating the USP 507 via Telnet.

Connecting to the USP 507 (Open command\⤀

You connect to the USP 507 using the Open command. Once your computer is connected to the unit you can enter the SIS commands the same as you would if you were using the RS-232 link.

Connect to the device as follows:

1.	At the Telnet prompt, enter open IP address.
	If the processor is not password protected, no further prompts are displayed
	until you disconnect from the USP 507.
	If the processor is password protected, Telnet displays the password prompt.
2.	If necessary, enter the password at the password prompt.
	Connection to the processor 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 the processing 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 processor is delivered with both passwords set to carriage return.

Once you are logged in, the processor returns either Login Administrator or Login User. No further prompts are displayed until you disconnect the from the USP 507.

Escape character and Esc key

When Telnet is first started, the utility advises that the Escape character is ‘Ctrl+]’. Many SIS commands include the keyboard Esc key. Consequently, some confusion may exist between the Escape character and the Esc key.

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 USP 507 intact.

The Escape key is the Esc key on the computer keyboard.

Local echo

Once your computer is connected to the USP 507, 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 processor.

With local echo turned on, keystrokes and the processor’s responses are displayed on the same line. Example: 1*1*1!01Out01 In01 All where 1*1*1! is the SIS command and 01Out01 In01 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.

B-4 USP 507 • Ethernet Connection