People say you need a launch cable but our cheap china OTDRs have no issues seeing the connector at the end of the patch cable and stuff beyond. I bought a big launch cable back in the day and never use it anymore.
Might be different with AE? On Mon, Aug 26, 2024 at 5:16 PM <ch...@go-mtc.com> wrote: > Only minimum length I know of is the OTDR dead zone. If that is a problem > you purposely lengthen the cable with a launch cable. > > *From:* Josh Luthman > *Sent:* Monday, August 26, 2024 1:59 PM > *To:* AnimalFarm Microwave Users Group > *Subject:* Re: [AFMUG] fiber patch cables > > Reddit is wrong. Gasp. > > Connectors are loss, there is more loss in either one of the connectors > than there is the single mode glass. > > Between a switch/router in a rack what I see all the time is long (like > 5/10/15 feet) cables and then put the slack in a loop along the posts. > > On Mon, Aug 26, 2024 at 1:19 PM TJ Trout <t...@voltbb.com> wrote: > >> Patchbox makes some great products, their fiber system is pretty slick >> but expensive. >> >> Cable length is irrelevant it's optical budget / Rx signal strength. >> Normally on 2-20k LR optics you are ok with any length cable, 40km+ needs a >> pad on short spans. (Attenuator) >> >> On Mon, Aug 26, 2024, 8:29 AM Ken Hohhof <khoh...@kwom.com> wrote: >> >>> Is there a minimum length for a single mode fiber patch cable? >>> >>> >>> >>> I have been using 1 meter cables and they are almost always too long, >>> I’m talking about going between routers and switches in a rack, stuff like >>> that. I see that FS sells 0.5 meter cables, but I saw somewhere like maybe >>> on Reddit someone claiming there was a minimum length. Given SM fiber and >>> LR optics, I don’t see how 0.5 or 1.0 meter would be different they are >>> both essentially zero length. >>> >>> >>> >>> Probably there’s some kind of cable tray or cable management solution I >>> could be using but I’ve never liked such things. >>> -- >>> 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 >
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