Front Panel

Standby Switch

This is the switch used for choosing between power-on ( | ) and standby (O) state of E4982A. Do not connect any USB memory at power ON.

To turn OFF the power to the E4982A, be sure to follow the steps described below:

First, press this standby switch or send a shutdown command from the external controller to activate the shutdown process (the processing of software and hardware necessary to turn OFF the power supply). This will put the E4982A into the standby state.
Next, if necessary, turn OFF power supply to the Power Cable Receptacle (to LINE) on the rear panel.

The color on the button indicates the status as shown below:

Indicator Color	Description
Green	Normal power ON status.
Orange	Standby status.
Red	Illegal power ON status.

Under normal use, never directly interrupt the power supply to the power cable receptacle on the rear panel when the power supply is on. Always keep the Line Switch (Always ON) at (|). Never turn it OFF (O).

If you directly interrupt the power supply to the power cable receptacle when the power supply is ON, or turn OFF the Line Switch (Always ON), the shutdown process will not work. This could damage the software and hardware of the E4982A and lead to device failure.

Turning ON the power supply after a faulty shutdown may cause the system to start up in a condition called "safe mode." If this occurs, first shut down the system to put it into the standby state and then turn on the power supply again to start up the system in normal mode.

LCD Screen

The E4982A is equipped with a 10.4-inch TFT color, touch-sensitive LCD screen for displaying measurement value, setup state, result of data processing, result of evaluation, settings, softkeys, indications and other measurement related information. The touch screen LCD allows you to manipulate softkeys by touching the LCD screen directly with a finger. For more information on the LCD screen, see Screen Area.

Do not press the surface of the LCD screen with a sharp object (e.g., a nail, pen, or screwdriver). Pressing the surface with a sharp-pointed object will damage the LCD screen surface or cause the screen to fail.
Valid pixels are 99.998 % and more. Below 0.002 % of fixed points of black, blue, green or red are not regarded as failure.

SETUP Block

A group of keys used to set up the basic measurement conditions of E4982A.

Key Name	Description
Table Prev	Selects the previous table as the active table.
Table Next	Selects the next table as the active table.
Stim Prev	Can be used at single point measurement display and list measurement display to view the previous point as the active point.
Stim Next	Can be used at single point measurement display and list measurement display to view the next point as the active point.
List Meas	Displays list measurement display of all the points in the active table.
Point Meas	Displays single point measurement display of the active point.
Stim Table	Displays four tab: Stimulus, Cal Kit, Compen Kit and Comparator. These four displays can be switched in sequence by repeatedly pressing this key.
Meas Setup	Displays the Measurement Setup softkey menu bar on the right side of the display. These softkeys are used to select the measurement setup parameter. This menu is displayed in either one of these two types of measurement displays:single point measurement display and list measurement display.

MEASUREMENT Block

A group of keys used to set up the parameters, display settings, perform analysis function and export data of E4982A.

Key Name	Description
Prmtr	Displays the Parameter softkey menu bar on the right side of the display. These softkeys are used to select the measurement parameter.
Display	Displays the Display softkey menu bar on the right side of the display. This menu is used to specify how to display the measurement results.
Analysis	Displays the Analysis softkey menu bar on the right side of the display. Manipulating this menu is enables you to use the analytical function.
Data Export	Displays the Data Export softkey menu bar on the right side of the display. This menu is used to export image and data as well as to set file utility.

TRIGGER Block

A group of keys used to set trigger mode and trigger E4982A.

Key Name	Description
Trigger	Generates trigger when pressed, if the trigger mode is set to Manual.
Trigger Mode	Displays the Trigger Mode softkey menu bar on the right side of the display. This menu is used to specify the trigger mode, delay and input polarity.

NAVIGATION Block (No Label on the Front Panel)

The keys and knob in the NAVIGATION Block are used to navigate between softkey menus, selected (highlighted) areas in a dialog box as well as to change a numeric value in the data entry area by stepping up or down. When selecting one of two or more objects (softkey menus, data entry areas, etc.) to manipulate with the NAVIGATION Block keys displayed on the screen, first press the Foc key in the ENTRY Block to select the object to be manipulated (placing focus on the object) and then manipulate the NAVIGATION Block keys (knob) to move among selected (highlighted) objects or change numeric values.

The following descriptions show how the NAVIGATION Block keys work both when the focus is on a softkey menu and when the focus is on the data entry area.

When the focus is on a softkey menu (softkey menu is selected)

When the focus is placed on a softkey menu, the NAVIGATION Block keys work as described below.

Key Name	Description
Rotary Knob (turned clockwise or counterclockwise)	Moves the softkey selection (highlighted display) up or down.
Up/Down Arrow	Moves the softkey selection (highlighted display) up or down.
Right Arrow	Displays the softkey menu one layer above.
Left Arrow	Displays the softkey menu one layer below.
Enter or Knob (pressed)	Executes the function of the selected softkey.

After pressing the data entry softkey, the focus automatically moves to the data entry area.

When the focus is on the data entry area (data entry area is selected)

When the focus is placed on the data entry area, the NAVIGATION Block keys work as described below.

Key Name	Description
Rotary Knob (turned clockwise or counterclockwise)	Increases or decreases the numeric value in the data entry area in small steps.
Up/Down Arrow	Increases or decreases the numeric value in the data entry area in large steps.
Left/Right Arrow	Moves the cursor (\|) in the data entry area laterally back and forth. Use it together with the ENTRY Block keys to change data one character at a time.
Enter or Knob (pressed)	Finishes the entry in the data entry area and moves the focus to the softkey menu.

CAL/COMPEN Block

A group of keys used to set up the functions to control and manage calibration and compensation of E4982A.

Key Name	Description
Cal	Displays the Calibration softkey menu bar on the right side of the display. This menu is used to execute calibration.
Compen	Displays the Compensation softkey menu bar on the right side of the display. This menu is used to execute compensation.
Cal Wizard	Displays the Calibration Wizard that guides you step by step in performing calibration.
Compen Wizard	Displays the Compensation Wizard that guides you step by step in performing compensation.

ENTRY Block

A group of keys used for entering numeric data is provided on the front panel of the E4982A.

Key Name	Description
0, 1, 2, 3 ..... 9 , . (numeric keys)	Type numeric characters or a decimal point at the position of the cursor in the data entry area.
+/-	+/- alternately changes the sign (+, - ) of a numeric value in the data entry area.
G/n, M/u, k/m, x1	Adds a prefix to the numeric data typed by using the numeric key and +/- key. One of the two prefixes written on the surface of the key is automatically selected depending on the parameter to be entered. x1 is entered without a prefix.
Entry Off	Turns OFF the data entry bar if it is displayed. If the dialog box is displayed, it cancels the entry and closes the dialog box. If the data entry bar and dialog box are not displayed, it turns the softkey menu display to OFF if it is ON, except for Stim Table softkey.
Bk Sp	Backspace key.
Foc	Changes the selection (focus) among the objects to be manipulated by the NAVIGATION Block keys and ENTRY Block keys. The objects to be manipulated by the NAVIGATION Block keys and ENTRY Block keys include softkey menus, data entry areas, and dialog boxes. When two or more of these are displayed on the screen and need selecting, use this key to change the selection (focus) among the objects to be manipulated. When a softkey menu is selected, the menu name area at the top of the menu is displayed in blue. When a data entry area is selected, the data entry bar is displayed in blue. When a table is selected, the frame of the table window is displayed in light gray. While a dialog box is displayed, the focus is fixed on the dialog box and cannot be changed.
Help	Displays help for E4982A.

FUNCTION Block

A group of function keys with default setting. However, these settings can be changed at System > Misc Setup > F1 Key/F2 Key/F3 Key followed by the setting option. By default, the function keys are set as follows:

Key Name	Description
F1	Capture Image. Captures the image of the current screen display.
F2	File Utility. It pops-up the Windows Explorer window.
F3	Toggle Beeper Warning.

INSTR STATE Block

A group of keys related to the control/management function, and the presetting of the E4982A (returning it to the preset state).

Key Name	Description
Save/Recall	Displays the Save/Recall softkey menu bar on the right side of the display. This menu is used to save the E4982A setup state and measurement data in a storage device of the E4982A and to recall them up when required.
System	Displays the System softkey menu bar on the right side of the display. This menu is used to control and manage the entire measuring instrument.
Preset	Use this key to set the E4982A to an initialized state called the Preset State. Click Undo Preset to return to the setting prior to the preset action.

Test Head Interface

This interface includes the three ports used to connect the test head: RF OUT, PORT 1, and PORT 2. All ports are N-type connectors (female).

Do not apply DC voltage or DC current to the test head interface as this could result in damage.
To prevent the E4982A from malfunctioning, do not apply DC voltage or DC current to the test head’s DUT port. The capacitor in particular could be charged. When you connect a capacitor, discharge it sufficiently before connecting it to the test fixture that is connected to the test head’s DUT port.

Front USB Port

Two USB (Universal Serial Bus) ports are provided that can be used for connecting to USB keyboard, USB mouse, and/or USB memory.

The specifications of this port are identical to those of the Rear USB port.

Ground Terminal

Ground terminal is connected to the chassis of the E4982A and is provided with the E4982A. You can connect a banana-type plug to this terminal for grounding.