Type A Female to Female cable. Type A cassettes on BOTH ends. (Male pins in the cassettes which is default for FS and most cassettes)
That's it. Not rocket science. On Mon, Apr 6, 2020 at 8:23 AM Josh Baird <joshba...@gmail.com> wrote: > So - I don't think it's possible to use BiDI when using the cassettes as > recommended by FS.. but I'm still trying to wrap my head around it. > > They recommended this: > > * https://www.fs.com/products/70220.html (12fiber, MTP female on both > ends, Type "A" polarity) > * https://www.fs.com/products/57016.html on one end (Type A cassette) > * https://www.fs.com/products/57037.html on the other end (Type AF > cassette) > > They also said that BiDI will not work due to the polarity mis-match on > TX/RX. > > Does this sound right? > > > On Fri, Apr 3, 2020 at 9:20 AM Mark Radabaugh <m...@amplex.net> wrote: > >> In addition to Jared’s comment (don’t mix SM and MM fiber), make sure you >> have the correct connectors at each end. Also make sure when ordering >> BiDi optics that you pair them correctly. Tx on one end needs to match Rx >> on the other. You will need two different part numbers for the SFP’s. >> >> Mark >> >> On Apr 3, 2020, at 9:11 AM, fiber...@mail.com wrote: >> >> I was going to write it'll work just fine, Layer 1 don't care, but you >> linked to a *multimode* MTP casette. This will either fail outright or have >> spectacular losses. Swap the MTP casette for a single mode one and you'll >> be fine. >> >> Jared >> >> >> *Sent:* Friday, April 03, 2020 >> *From:* "Josh Baird" <joshba...@gmail.com> >> *To:* "AnimalFarm Microwave Users Group" <af@af.afmug.com> >> *Subject:* Re: [AFMUG] Fiber Up Tower >> Someone who knows more about fiber, please help me out here.. >> >> Considering buying the 12count SM armored fiber [1] with the duplex >> cassettes [2]. To maximize the usage of the 12ct, I would like to use BiDi >> SFP's so that I can use a single strand of fiber per radio. If I use the >> correct BiDi SFP's, will I have any issues using the duplex cassettes that >> are linked here? I have always just used duplex fiber+SFPs and have no >> experience with BiDi. >> >> [1] https://www.fs.com/products/70220.html >> [2] https://www.fs.com/products/57017.html >> >> On Mon, Mar 30, 2020 at 11:23 PM Kurt Fankhauser < >> lists.wavel...@gmail.com> wrote: >> >>> I have been researching this heavily over the past few days and this is >>> what I am "thinking" about doing for fiber and power up tower. >>> >>> 1. Run a MPT/MPO fiber trunk cable up tower (12 fibers) >>> https://www.fs.com/products/68017.html (indoor version but >>> available immediately in USA shipping)(could use this temporarily) >>> https://www.fs.com/products/70220.html (custom length rugged outdoor >>> version but takes 30 days to get here from Asia) >>> >>> 2. Run each end of the MPT Trunk into a "MPT-12 to 6x LC Duplex >>> Cassette" (tower top this will be in an enclosure) >>> https://www.fs.com/products/57017.html >>> >>> 3. Run custom length FTTA LC connector Patch cables from the Tower Top >>> enclosure to each radio SFP >>> https://www.fs.com/c/ftta-patch-cables-3856 >>> >>> 4. For Power run individual power wires or a combination of >>> multi-conductor wire "cord style." The cord below is 12 guage but has 4 >>> conductors. If wired properly you could individually power 3 radios and use >>> a common ground wire and still be able to power cycle the 3 radios from the >>> ground. If I need 6 radios I will run a second cord. My towers are only >>> 150' tall so I think 12 guage should be more than big enough for me even >>> with Medusa AP's. >>> >>> https://www.ebay.com/itm/250-ft-12-4-SJOOW-SJO-SJ-SJ00W-Black-Rubber-Cord-Outdoor-Flexible-Wire-Cable/143388108175?hash=item216298e58f:g:KSQAAOSwA0JclR2G >>> >>> >>> I would run the power cords and fiber trunks into a common tower top >>> enclosure and wire out from there. I really like this Trunk cable idea with >>> the fiber because If done right there will be absolutely no splicing of >>> fiber at all. If the Trunk cable goes bad just run a new one up and plug it >>> into the Cassettes and everything should keep working. You could >>> standardize on a couple different lengths of the MPT fiber trunk 150' or >>> 250' and just stock those and coil up excess cable outside or something. >>> >>> I was un-aware that Medusa AP's needed 8 gauge wire at 300' but i guess >>> it could make sense. >>> >>> >>> On Mon, Mar 30, 2020 at 9:33 PM Josh Baird <joshba...@gmail.com> wrote: >>> >>>> Would you happen to have a link handy for the specific OFDC that you >>>> are talking about? I'm trying to spec out a similar situation right now. >>>> >>>> On Mon, Mar 30, 2020 at 9:28 PM Adam Moffett <dmmoff...@gmail.com> >>>> wrote: >>>> >>>>> In the past I went with individual pre terminated cable assemblies. I >>>>> went with a "core locked" fiber rather than a loose tube so there wouldn't >>>>> be any icky pick oozing out. The connectors were LC duplex because the >>>>> radio manufacturer's approved SFP's were LC duplex (for both Trango and >>>>> Telrad). I went with individual cables because any tower climber can >>>>> replace a cable, but I don't expect most tower climbers to be able to >>>>> splice or terminate fiber. >>>>> >>>>> Today I'd strongly consider a Commscope OFDC enclosure up on the >>>>> tower. I'd use a 24F and pre-splice all the connectors in the OFDC and >>>>> have the tower guys hang the whole assembly. Then it would be pre >>>>> terminated jumpers from the OFDC to the equipment. >>>>> >>>>> On 3/30/2020 5:34 PM, Matt wrote: >>>>> >>>>> What is everyone using for fiber up tower? What using for connectors? >>>>> >>>>> >>>>> >>>>> -- >>>>> AF mailing list >>>>> AF@af.afmug.com >>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> >>>> -- >>>> AF mailing list >>>> AF@af.afmug.com >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- AF mailing list AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- Carl Peterson *PORT NETWORKS* 401 E Pratt St, Ste 2553 Baltimore, MD 21202 (410) 637-3707
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