4K Fiber Transmission Optical Module SFP

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Baz

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4K Fiber Transmission Optical Module SFP

PostFri Jun 06, 2025 12:35 am

I need to fully populate a Blackmagic ATEM Studio Converter with 8 x 12K SPF's and 8 x single Mini Converter Optical Fiber 12G at the camera ends.

I found some 12G-SDI SD-SDI Video Tranceiver 4K Fiber Transmission Optical Module SFP for Blackmagic Design BMD on AliExpress.

https://www.aliexpress.com/item/1005005653766569.html?UTABTest=aliabtest116529_13358&src=google&albch=shopping&acnt=272-267-0231&slnk=&plac=&mtctp=&albbt=Google_7_shopping&gclsrc=aw.ds&albagn=888888&ds_e_adid=738012934484&ds_e_matchtype=search&ds_e_device=c&ds_e_network=g&ds_e_product_group_id=2403836568656&ds_e_product_id=en1005005653766569&ds_e_product_merchant_id=5499831999&ds_e_product_country=AU&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=22318332228&albag=177676186793&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gad_campaignid=22318332228&gclid=Cj0KCQjwgIXCBhDBARIsAELC9ZieFfEHaJj6TPJ2s2OvHWVVqcGdM5nQRoQqeGjqDZ9J8mN-cAxVHiwaAhB2EALw_wcB&aff_fcid=213c173c23dd4783b90b2e4e56600869-1749168971902-03797-UneMJZVf&aff_fsk=UneMJZVf&aff_platform=aaf&sk=UneMJZVf&aff_trace_key=213c173c23dd4783b90b2e4e56600869-1749168971902-03797-UneMJZVf&terminal_id=438cac079096425981efa13fb2735284&OLP=1108200108_f_group2&o_s_id=1108200108&afSmartRedirect=n

But it says "The sfp don't supports Video Pathological Patterns for SD/HD/3G/6G/12G-SDI".
It seems to contradict itself. It specifically mentions "12G SFP for Blackmagic Design you can add a Duplex Singlemode LC fiber optic connection to your Blackmagic Studio Camera, Teranex Converter, ATEM hardware, or any other professional device that supports SFP cages" but DOESN'T support Video Pathological Patterns. Is this another 'beware' product???
Baz

Shitload of blackmagic gear dating back to the DeckLink capture card 2002!
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Gary Adams

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Re: 4K Fiber Transmission Optical Module SFP

PostFri Jun 06, 2025 6:35 pm

Hello Baz. We only qualify SDI SFPs that pass Pathological testing. While others may work some SDI signals may cause bit patterns that might cause the signal to blank out. It is probably best to stay away from those.

Always interesting to see your product offerings.

Gary
Gary Adams
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Xtreemtec

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Re: 4K Fiber Transmission Optical Module SFP

PostTue Jun 10, 2025 7:38 am

Simple said. IF they do not do Pathelogical Pattern for video, they have rebranded 10G network sfp's as 12G Video SFP's.

Yes its cheap. Yes it might work if you have a low budget. But expect situations where you get artifacts, weird glitches or even total non lock of signal depending on what the source signal is.

A video ramp / Pathelogical pattern test will stop these SFP's as the reclockers inside the SFP can't handle the long strings of 11111111 // 000000000 that occure in certain video patterns or if you have some content with a lot of off white / grey content..

SFP's that support pathelogical pattern have video reclockers inside. And these are thus build specific for video.

The reclockers used in network data systems just cant handle that..
Daniel Wittenaar .:: Xtreemtec Multicam Facilities ::. -= www.xtreemtec.nl =-
4K OBV Truck, Dual ATEM 8K, 120x120 Videohub, 12x Hyperdeck 4K Pro, Ursa Broadcast 4K G2, 4K fiber converters with Sony Control and seperate Tally on SMPTE

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