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CHAPTER 4: INTERFACES FRONT PANEL INTERFACE

L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-15

Figure 4-17: Enhanced front panel

4.2.1.2 Standard front panel

The standard front panel consists of LED panels, an RS232 port, keypad, LCD display, control pushbuttons, and optional

user-programmable pushbuttons.

The front panel is hinged to allow easy access to removable modules inside the chassis. There is also a removable dust

cover that is to be removed when accessing the keypad. The standard front panel can be horizontal or vertical. The

following figure shows the horizontal front panel.

Figure 4-18: Standard horizontal front panel

The following figure shows the vertical front panel for relays ordered with the vertical option.

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GE L90 Specifications

General