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What is Ethernet PHY and wired extension

An Ethernet PHY is the physical-layer chip that turns digital data into signals on the cable. With a PHY built into the video module, the same module can run over wireless, Ethernet cable, switches or fiber media converters.Also called: 100M Ethernet PHY, HDMI over IP, HDMI over Ethernet

What an Ethernet PHY is

The PHY is Ethernet's physical layer. It turns data from the chip into differential signals on the cable and recovers them on the way back. A complete port is usually main chip + PHY + magnetics + RJ45. With the PHY already on the module, the carrier only needs magnetics and an RJ45, with no PHY chip to choose or tune.

When to go wired

Between floors or buildings, through reinforced concrete, lift shafts or metal buildings, or at sites crowded with Wi-Fi, wireless rarely reaches its rated distance, and cable is the steadier choice. Over cable the link still carries video, audio and KVM data together, still encrypted, and the receiver works the same way.

Distances for cable, switches and fiber

A single cable segment is limited to about 100 m by the Ethernet standard; switches or routers relay it further. Beyond that, connect a 100M fiber media converter to the port. Fiber distance depends on the converter and fiber type, with common ratings of 10 km and 20 km or more. Fiber is immune to electromagnetic interference, which suits large sites and noisy plants.

On ANLYA modules

All four models, ATE9430T, ATE9430R, ATE9460 and ATE9461, have a built-in 100M Ethernet PHY with its differential pairs on the edge connector (pins 3 / 5 / 7 / 9 on ATE9460, pins 28 / 30 / 32 / 34 on ATE9461). The carrier adds magnetics and an RJ45. Through switches or routers the total is about 500 m; with fiber media converters, 10 km, 20 km or more. Wired latency is TBD.

FAQ

Q1Can the wireless video module run over Ethernet cable?
Yes. All four 4K60 / 4K30 models have a built-in 100M Ethernet PHY. Add magnetics and an RJ45 on the carrier and run it over cable, about 500 m through switches.
Q2How do I build an HDMI-over-fiber extender with these modules?
Bring out an RJ45 on the carrier and connect a 100M fiber media converter. Distance reaches 10 km, 20 km or more depending on the converter and fiber.
Q3Do I need a PHY chip on the carrier?
No. The PHY is already on the module, so do not add another PHY chip on the carrier. Only magnetics and an RJ45 are needed.

Not sure which module fits?

Tell us the resolution, range and interfaces. We reply with the module set and carrier-board documents.

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