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The front panel buttons are also used for Alarm Cutout. When an alarm condition occurs, the External Alarm Output contacts close. This typically actuates external alarm indicators such as bells or alarm lights. Pressing any of the four front panel buttons clears the condition, and turns off the external bell or light.
Exit Button
The EXIT button is used to cancel operations or exit to a higher level menu loop from a submenu loop. This button doubles as a left arrow button in a few situations.
UP ARROW and DOWN ARROW Buttons
The UP ARROW button is used to move to the previous menu item or configuration option.
The DOWN ARROW button is used to move to the next menu item or configuration option.
Pressing both the UP ARROW and the DOWN ARROW buttons simultaneously (the End Test combination), terminates all active tests on the local unit and brings the front panel menu to the TEST MENU showing the test that has just been terminated. If no tests are active, pressing the End Test combination has no effect.
Enter Button
The ENTER button is used to select a submenu loop or configuration option. This button doubles as the right arrow button in a few situations.
DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 |
