About the EU24/EU24BL Expansion Module
8 EU24/EU24BL Expansion Module User Guide
Although the EU24/EU24BL Expansion Module supports an additional 24 Call Appearance/
Feature buttons, it displays only the button labels for one column of 12 buttons at a time. A
dotted line separates the left column from the right column. When you view the labels and icons
for the left column, the icons for any active or selected right column features display to the right
of the dotted line. To view the column not currently displayed, press the Alternate Display
button. You can alternately press any Call Appearance/Feature button on the column not
currently displayed. Doing so displays that column and selects the line/feature associated with
the button you pressed.
Selecting a Call Appearance/Feature ButtonTo select an available call appearance or feature, press the button next to the appropriate label
in the column currently displayed. If you select a button not programmed as a Call Appearance
or a Feature button, an error tone sounds.
If the desired call appearance or feature is not currently displayed, use the Alternate Display
button to access the additional Call Appearance/Feature button labels. See Viewing the
Alternate Display for more information.
Changing the EU24/EU24BL ContrastOn first-time startup, the display area contrast is set to a mid-level. To adjust it to better suit your
work environment and lighting, 15 contrast levels are available.
Note:
Note: You might not be able to distinguish between all 15 contrast level settings.
Some of the upper and/or some of the lower contrast level settings might appear
identical to adjacent settings. This is normal.
Changing the Display Contrast Using a 2420 Digital Telephone
1. With the EU24 attached to your phone, press the telephone’s Option softkey.
2. Select the Contrast Line/Feature button.
3. Press the Line/Feature button on either side of the line in which you see EU24. Doing so
identifies that you want to adjust the display contrast and highlights that line.