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Altera_Forum
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16 years ago

seriallie over coaxial cable

Hi all, I wonder the SerialliteII can transmit data by a coaxial cable? how will be the max length? Thanks....
Altera_Forum's avatar
Altera_Forum
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16 years ago

Belden 7810.

https://edeskv2.belden.com/products/index.cfm?event=showproductdetail&partid=1820

Specs show ~8db of attenuation per 100ft. at 3GHz (your 3Gbps data rate with 8b/10b would actually be lower loss than this. So for 100 meters, loss would be about ~26dB. That's pretty good. However, it requires a fairly good cable equalizer at the other end. Stratix IV GX maximum equalization tops out at 16dB. You'll need an external cable equalizer (which would be wise regardless).

Jake