3Com CM 4000 Manual

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Control Panel Operation

CP 3808

6−73CM 4000 Installation and Operating Manual

The “low” green level is used for normal button lighting. “High” green and “high” red are also used, but these are not adjust-

able.

Note: The amber color, which is presently used only for a CP 3830 dedicated output panel, is created by combining

low green and low red.

For each setting, use the UP and DOWN buttons to change to the desired brightness and press TAKE. Press CLEAR to exit.

Burn In

This test rotates through the button lamp and Display tests continually. Press CLEAR to cancel.

Key test

This diagnostic displays the number of each button as it is pressed. Pressing the CHOP key will change the lamp color. Press-

ing CLEAR twice exits.

Display test

This test cycles through and displays all legal characters. The test will stop after one cycle. Pressing CLEAR exits. (On the

CP 3809, press the lower right button to exit.)