DR HDMI 8K
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DR HDMI 8K / Glossary / RJ45
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What is RJ45?

RJ45 is the square-ish eight-pin socket you plug a network cable into. On an AV device it is usually what unlocks everything interesting.

In plain language

RJ45 is the connector; Ethernet is what runs over it. On AV hardware the port is there for control and configuration, not for streaming video.

Why it matters in your setup

Plenty of devices are far more capable over the network than they are from their front panel. Without the cable you have a small display and one control; with it you have a full interface, remote control and firmware updates.

Wired is the right choice in a rack: no wireless setup, no dropouts behind a metal panel, and it works before anything is configured.

What the DR HDMI 8K does with it

On the DR HDMI 8K the RJ45 port is mandatory for the embedded web server and for IP control. Connect it to your router or switch and the unit picks up an address by DHCP, then shows it on the OLED. Without it you can still cycle info pages and use the on-device menu, but the EDID, Dolby Vision and configuration workflows all live in the browser.

DR HDMI 8K in one line: it is a 48Gbps HDMI 2.1 EDID manager, emulator and repeater that sits between your source and the rest of the chain, so you can see what is being negotiated and decide what the source is allowed to see — instead of guessing which device is at fault. What it is and what it solves →

Related terms

embedded web server →DHCP →IP control →MAC address →USB-C power →

Read more

Manual: connecting cables →Manual: web server access →

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