ADTRAN ESU 120e user manual Peration, Front Panel

Chapter 3 O peration

FRONT PANEL

The ESU 120e front panel monitors operation and controls the con- figuration of the unit. The ESU 120e front panel is shown in Figure 3-1. Descriptions of each part of the front panel follow.

Name	Description
LCD Window	Displays menu items and messages in two lines by 16
	characters. It also displays alarm and status information.
Enter Key	Selects active menu items. To select a menu item, press the
	number of the item. The menu item flashes, indicating it is
	activated. Press Enter to select the menu item.
Up and Down	Up and Down Arrows scroll through and activate the
Arrows	submenu items available in the current menu. When the
	submenu items are scrolled, the flashing cursor indicates the
	active parameters.
Cancel Key	Pressing the Cancel key stops the current activity and returns
	to the previous menu. Repeat until the desired menu level is
	reached. When a submenu item is displayed, press Cancel to
	exit the current display and return to the previous menu.
Numeric	The numeric keypad contains the numbers 0 through 9 which
Keypad	are used to activate menu items and enter information (such
	as the IP address).
Shift(entering	Enter special function keys by pressing and holding Shift
special function	before pressing the key representing the desired character. See
keys)	Operation Keys on page 3-4 for a description of the function
	keys. To activate a special function key rather than a number,
	press Shift and then the button. If a key is pressed without
	using Shift, the numbered item becomes active instead of the
	special function key.

61200420L1-1 ESU 120e User Manual 3-1