---
title: Jumpers & Indicators
slug: cnc530/jumpers-and-indicators
docTags: 
createdAt: 2023-12-20T14:28:52.977Z
---



## BTL - Force Bootloader 

![](https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/oU-JNTHI4JpLiFrf4RBBZ_bl.png)

Placing the jumper -> Force bootloader 5 seconds on start-up.
Not placing the jumper -> Skip bootloader

## IP - Use Default IP Address

![](https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/AyvWosThqALp6CydhL7Yc_ip.png)

Placing the Jumper -> Use default IP address (172.22.2.100)
Not placing the Jumper -> Use user-set IP address

## PVO - Selectable PWM Pull-up

![](https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/UHN-KnOKt6P7EDe-LA9Vi_pwm.png)

Placing the Jumper on 5v -> The PWM output is connected with an internal (10K) pull-up resistor to +5VDC

Placing the Jumper on 12V -> The PWM output is connected with an internal (10K) pull-up resistor to +12VDC

Not placing a jumper -> The PWM output can be used as desired. 

:::hint{type="warning"}
PWM uses an 'open-collector output'
:::



## AUX E-Stop - Connect E-stop with AUX out

![](https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/IFL4i3zSu_DPRmwIdp6c3_aux-e-stop.png)

Placing the Jumper -> 'AUX out' ignores the E-Stop status.
Not Placing the Jumper -> 'AUX out' will switch off when an E-stop is triggered.

## Relay - +

![](https://api.archbee.com/api/optimize/wP9peVc2bAVBPOh6IboCS/BJDvLyRdPalHxUX9OYSMp_relay.png)

Placing the Jumper on + -> Corresponding Relay 'COM' connected to 'Relay power'.
Placing the Jumper on - ->  Corresponding Relay 'COM' connected to 'Relay ground'.
Not placing a jumper -> Corresponding 'COM' is floating and can be used as desired. An external power source can be used.



## Indicators

The CNC530 features several indicators that show the status of the board. Additionally to these indicators, an extra connector is available to show the status of outputs. An extra board is included for that connector.

### Power

Green LED indicating that 24V is connected to the board.

### Link

This LED indicates that the board is connected by ethernet. Please note this does not mean that communication is also possible. Things like incorrect network settings can prevent communication.

### Activity

When data is transferred through the network interface, this indicator will blink.

### Boot

This indicator is active when in bootloader mode

### Heartbeat

Show the board is active.

### SysReady

Indicate the CNC system is active.