---
title: Jumpers & Indicators
slug: cnc310/jumpers-and-indicators
docTags: 
createdAt: 2023-05-02T12:59:52.000Z
---

## Jumpers

### USBPWR

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/uNBkWI9tW-KMcQyWubdhi_image.png" size="60" width="943" height="810" caption="USBPWR Jumper" position="flex-start" showCaption="true"}

Lower left (USBPWR) should be set if the board is powered by the USB voltage. 

Remove if you want to power externally.
External POWER can be applied on pin, see [Connectors](docId\:qbngED702f7qbhn9nUYk9).

### PRG

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/lKw93vKpqE9FO51TwbYF3_image.png" size="60" width="947" height="799" caption="PRG Jumper" position="flex-start" showCaption="true"}

This jumper forces the board to skip the bootloader. This can always stay on unless a firmware upgrade is needed. Remove this jumper and follow the instructions on the [Firmware upgrade](docId\:pz3XEhfi-LimMFFTi-kyb) page in the USB section to complete this procedure. Afterward, place the jumper again to skip the bootloader on the next boot.

### RDY/PLS

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/bheCch9pYvzA5xQR1AeQS_image.png" size="70" width="1093" height="699" caption="RDY/PLS Jumper" position="flex-start" showCaption="true"}

This jumper is used to set the output signal that is present on the I/O pin ‘WATCHDOG/SYSRDY‘.
For more info see [Outputs](docId:8CYQjPSokWUflZNwYpQZI).

### JP1

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/NtOBpql--jpGKkF3N6ZoN_image.png" size="72" width="1125" height="695" caption="JP1 Jumpers" position="flex-start" showCaption="true"}

This jumper can be used to deactivate the signals on some I/O pins. Currently, make sure that all
jumpers are mounted.

## Indicators

### Power

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/_PID6G0Apk1xw1C3yet2S_image.png" size="70" width="1167" height="863" caption="Power Indicator" position="flex-start" showCaption="true"}

**P** indicates that the power for the processor is available (3.3V)

### Status

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/RTSkg5bfWT3RkhwFDofBQ_image.png" size="70" width="1083" height="926" caption="Status Indicators" position="flex-start" showCaption="true"}

The status LEDs indicate the current mode of the controller. The status LEDs are indicated by L1
through L4.

| Indicator | Color  | Meaning                                                                 |
| --------- | ------ | ----------------------------------------------------------------------- |
| L1        | Orange | Board is starting                                                       |
| L2        | Green  | Indicates ‘Machine On’                                                  |
| L3        | Green  | Controller ‘heartbeat’ indicating the board is active                   |
| L4        | Red    | WATCHDOG charge pump, indicates the operation of the watchdog circuitry |

:::hint{type="info"}
Please note, when in bootloader mode LED2 and LED3 will toggle to indicate this.
:::

### Network

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/8fYrNEZ-UkVMRnQnVq9LX_image.png" size="70" width="1174" height="826" caption="Network Indicators" position="flex-start" showCaption="true"}

The green LINK LED indicates if a network cable is connected. The yellow ACTIVITY LED will blink if there is
network communication.

### LED7

::Image[]{src="https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/3SCUxtMbSf1i2uae6HNIq_image.png" size="60" width="945" height="853" caption="LED7 Indicator" position="flex-start" showCaption="true"}

**LED7** indicates that the SYSRDY is active. For more information on this signal, read the respective chapter in [Outputs](docId:8CYQjPSokWUflZNwYpQZI).