# The USB Connector

The USB Connector is a USB Series "B" Receptacle Interface.

<figure><img src="https://1222752003-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FdOw3hdDe6gabAGiQZT7A%2Fuploads%2Fw1fWNmTVuub18yOdOnPx%2Fimage.png?alt=media&#x26;token=cb3a5091-17b6-434f-91ca-518c9d4d5604" alt=""><figcaption></figcaption></figure>

<table data-header-hidden><thead><tr><th width="118"></th><th></th></tr></thead><tbody><tr><td><strong>Pin No</strong></td><td><strong>Pin Function</strong></td></tr><tr><td>Pin 1</td><td>VBUS USB supply voltage 5V</td></tr><tr><td>Pin 2</td><td>Data- line of USB, this signal utilises NRZI line coding</td></tr><tr><td>Pin 3</td><td>Data+ line of USB, this signal utilises NRZI line coding</td></tr><tr><td>Pin 4</td><td>Ground</td></tr></tbody></table>

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#### <mark style="color:red;">WARNING</mark>

DON'T DROP THE LOGGER ONTO THE USB CONNECTOR WITH A USB CABLE PLUGGED IN.
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