Electronics > Projects, Designs, and Technical Stuff

CoaXPress 2.0 Transceiver

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NiHaoMike:

--- Quote from: ali_asadzadeh on September 02, 2020, 06:18:40 am ---I wonder if instead of 24V DC power delivery, I could use 240VAC mains as a power source (or rectified 300V DC), is it possible?

--- End quote ---
The multiplexing is done by a coupling circuit so the answer is yes, if the coupling circuit is designed for it. Getting a cable that is rated for the voltage and is able to carry high frequencies well, at a reasonable cost, is another problem.

For more modest bandwidth requirements, networking over power line products are commonly available.

--- Quote from: bvwj on September 02, 2020, 08:03:42 pm ---The bandwidth is asymmetrical, 1-12Gbps one direction, 21-42Mbps the other.  Mostly useful for cameras.

--- End quote ---
Also useful for displays, although it's more common to use Cat6A for runs too long to use HDMI.

ali_asadzadeh:

--- Quote ---For more modest bandwidth requirements, networking over power line products are commonly available
--- End quote ---
I can work with 500Mbps to 1Gbps, is there any solution?


--- Quote ---Understand you're claiming as digital expert  ::) , suggesting to go back to learn basic electronics, where you can not supply more higher voltage than the specified max. voltage.
--- End quote ---
The data is coupled with caps into the cables, maybe there is a clever way of doing it to give it a higher voltage

OneGeekGuy:
There are already several devices which allow power and data over coax, until now the data rate is slower than 12,5 Gbps, but they are on it... ::)

For example...DS90UB954 with FPDLink and MAXIM with GMSL MAX9276B. They are mainly used in Camera/Radar/Lidar applications.

BR

ali_asadzadeh:

--- Quote ---Read the datasheet. Decoupling is achieved with MLCCs, so if the OP uses higher voltage, safety rated (say, Y caps) capacitors, I can't see why higher voltage is not possible. Just take Y cap leakage into consideration.
--- End quote ---
I think, I should give it a try >:D

NiHaoMike:

--- Quote from: ali_asadzadeh on September 03, 2020, 05:43:14 am ---I can work with 500Mbps to 1Gbps, is there any solution?

--- End quote ---
Look up "Homeplug". It works very well for supplying network connectivity to a test cart over the same extension cord used to power it.

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