> For the complete documentation index, see [llms.txt](https://help.boomerang3.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.boomerang3.com/win-gateway-installation-manual/infrastructure/win-node-types/nwin004-4-x-4-20ma-adc.md).

# 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="/files/iMxJbMvFYNfcJglc1cp8" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/VN3LjRRvvVIgN6X5T5d4" 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](/win-gateway-installation-manual/mechanical-installation/enclosure-opening.md).
* The cable slots (8) are used to route the sensor cables as described in [Cables routing](/win-gateway-installation-manual/mechanical-installation/cables-routing.md).
* The sensor and power cables can be fastened to PCB holders (9) using cable tie wraps as shown in [Cables routing](/win-gateway-installation-manual/mechanical-installation/cables-routing.md).

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="/files/VnOgm3Tn5XlKuJSPdLXG" alt=""><figcaption></figcaption></figure>

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

<figure><img src="/files/Te5LG0oSeWkRGZ123fEx" alt=""><figcaption></figcaption></figure>


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