# CX 2000 status indicator LEDs

As shown in the following illustration, the CX 2000 board has LEDs located on the end bracket:

The following table describes each LED:

LED | Description
--- | ---
Board locate | Locates a board using pciscan.
Ring voltage | LED on verifies that a ring signal is available to the board.
Battery | LED on verifies -24 V DC is available to the board.

The fourth LED is not used. It is on when the battery LED is on.