# NWIN004 (4 x 4-20mA ADC)

The NWIN004 node has connectors for up to four 4-20mA sensors and it can be battery or battery and DC powered.

<figure><img src="https://2429681196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0vLm0km8knyJJgcLOzxB%2Fuploads%2FPMox8HHhLLTNuTl3Wa28%2Fimage.png?alt=media&#x26;token=3874a40e-4b5c-456a-b2f1-b29cf8f140b6" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2429681196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0vLm0km8knyJJgcLOzxB%2Fuploads%2FoSgH97pqucAO8GGtpZ8B%2Fimage.png?alt=media&#x26;token=7442a05e-6d65-4f72-ad32-58e9eac8cc2e" alt=""><figcaption></figcaption></figure>

* There are four 4-20mA sensor connectors (1, 2, 3, 4).
* There is a holder for 2 AA batteries.
* A DC jack (7) is used to supply the node and sensors from an external 9-24 V power supply.&#x20;
* There is a green LED (6) that blinks rapidly when the node is unlinked.
* The blue hinge can be removed for easy routing of cables as described in [enclosure-opening](https://help.boomerang3.com/win-gateway-installation-manual/mechanical-installation/enclosure-opening "mention").
* The cable slots (8) are used to route the sensor cables as described in [cables-routing](https://help.boomerang3.com/win-gateway-installation-manual/mechanical-installation/cables-routing "mention").
* The sensor and power cables can be fastened to PCB holders (9) using cable tie wraps as shown in [cables-routing](https://help.boomerang3.com/win-gateway-installation-manual/mechanical-installation/cables-routing "mention").

A single channel sensor connector has 3 pins marked IN, GND and +24V.

On pin marked +24V it provides supply voltage that can be used for sensor supply. This voltage is obtained from a DC jack (7) through a 2 A Schottky diode. As the voltage on DC jack can be in the range from 9-24V the same voltage will be present on sensor connector pin marked +24V.

<figure><img src="https://2429681196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0vLm0km8knyJJgcLOzxB%2Fuploads%2FRjk1hPZCOtitppuXNXKh%2Fimage.png?alt=media&#x26;token=e76be0ad-2808-4d68-b32d-7c647b2b0d45" alt=""><figcaption></figcaption></figure>

If the sensor is supplied from an external power supply, then the connections will look as below.

<figure><img src="https://2429681196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0vLm0km8knyJJgcLOzxB%2Fuploads%2Fr9e0XikUdc5ula1VZo2v%2Fimage.png?alt=media&#x26;token=4b88f0f5-52b2-4238-8be9-15a31a9c3901" alt=""><figcaption></figcaption></figure>