IP control explained

The short explanation

Instead of blinking an infrared code at a device and hoping, a controller opens a network connection and sends text. Two command shapes cover almost everything: set x y writes a value, get x reads one.

Where you run into it

The difference that matters is feedback. Infrared is one-way, so a control system never knows whether the command landed and has to assume. IP control returns the actual state, which is what makes reliable automation possible — a macro can check what happened and react.

It also works from anywhere on the network, through walls and around corners, and it survives a device being placed inside a closed cabinet.

How the DR HDMI 8K handles it

The DR HDMI 8K can be driven entirely over IP, Telnet or HTTP: EDID mode, individual video and audio flags, hot plug, reboot and status reads. Default port 2201, lowercase commands, and an IP interrupts option for control systems that need the device to report changes rather than being polled.