Converters and distribution

HDMI-to-SDI converters, distribution amplifiers and routers for live setups where cameras, switchers and destinations have to match.

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Converters and distribution
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How to choose an HDMI to SDI converter

Direction. Converters are one-way unless they say otherwise. The Micro Converter BiDirectional SDI/HDMI 12G handles both and is worth the small premium purely for not owning two parts.

Rate. 3G-SDI for HD, 6G and 12G for 4K on a single link. Buying below your camera's output rate is the usual reason a converter "does not work".

Power. Micro converters take USB power; a spare USB power supply in the bag prevents the most common on-site failure. Rack converters and Teranex units take mains.

Distribution versus routing. A distribution amplifier copies one input to several outputs. A router (Smart Videohub CleanSwitch 12x12, Videohub 80x80 12G) connects any input to any output under control, and clean-switch models cut without a glitch.

Standards conversion. Teranex Express and Teranex AV convert frame rate and format properly — that is a different job from a simple connector change, and a cheap converter will not do it.

Small converters and micro converters cart normally. Large routers, fibre converters and film scanners are quote-only through the Pro Desk.

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Questions we get asked

Do I need a bidirectional converter?

If you only ever go one way, no. Bidirectional micro converters cost slightly more and remove the risk of owning the wrong direction on a shoot day.

What SDI rate do I need?

3G-SDI for HD. 6G or 12G for 4K, depending on frame rate. Match the converter to the camera's highest output, not to the display.

What is the difference between a distribution amplifier and a router?

A distribution amplifier sends one input to several outputs. A router connects any input to any output and is switched under control.

Will a converter change frame rate?

No. A converter changes the connector and signal type. Changing frame rate or format properly needs a standards converter such as a Teranex.

How are micro converters powered?

Over USB. Keep a spare USB power supply or battery in the bag — a missing power supply is the most common on-site failure with these units.