Re: Optical Connectors
Gair,
A correction to my previous e-mail. The MT-RJ WEB page shows that the
facilities cabling has simple field termination of the jacks. I have been
told that there are also field termination cable connectors available also.
Thank you,
Roy Bynum
At 09:22 AM 8/1/00 -0400, Gair Brown wrote:
>To all,
>
>As a user, I would like to focus the discussions.
>
>Having a large number of connector options is only beneficial in that it
>should allow for the "best" solution to rise to prominence. From my
>perspective this has already occurred, at least for the current round of
>small form factor offerings.
>
>For non small form factor connectors, the SC is obviously the connector.
>
>For small form factor connectors, the LC and the MT-RJ are the leading
>connectors.
>
>You can argue about what the benefits of any of the designs are, but the
>reality is that only the LC and the MT-RJ seem to be capturing the bulk
>of the market. I have seen no market reports that dispute this
>position, or that predict this will change over time.
>
>I would note that between the three connectors (SC, LC, and MT-RJ), I
>believe that a complete solution set exists for all customer
>requirements, in particular,
>
> 1. Installed plant compatibility - SC
> 2. Small footprint - LC and MT-RJ
> 3. Optical performance - I'll just say the three should
> encompass this
>one
> 4. Cost - all are cost effective
> 5. Install flexibility - SC and LC are factory or field installable
> 6. High density capability - MT-RJ
>
>and the list goes on for whatever attributes you want to include.
>
>I think this group should seriously consider acknowledging the state of
>the market. Inclusion of these connectors as preferred within the
>standard will help focus both the customers and suppliers and ultimately
>reduce costs for all.
>
>Gair
>
>
>
>
>
>
>mittalr@xxxxxxxxxx wrote:
> >
> > Roy, I do not believe your assesment is correct. I can give you name of at
> > least 6 other BIG companies who are doing LC. That is more than you can
> > count for MT-RJ, I'm sure.
> >
> > I think it will be instructive to give people a feel of the various
> pros and
> > cons of various small form factor devices. Please let me know if
> anything is
> > amiss. Lets try and mantain objectivity here.
> >
> > LC
> > ---
> > Fiber pitch: 6.25mm (simple and easy to manufacture)
> > Insertion loss 0.1-0.15dbm
> > Return loss: 50-60dbm
> >
> > Mu
> > ---
> > Very similar to LC
> > Only difference is lack of latch which might be
> advantageous/disadvantageous
> > depending upon whom you talk to
> >
> > MT-RJ
> > -----
> > Fiber pitch: 0.75mm(difficult to manufacture)
> > Insertion loss 0.15-0.2 dbm
> > Return loss: ~40dbm
> >
> > VF (volition)
> > ----
> > Fiber pitch: 4.9mm(special cabling reqd.)
> > Insertion loss 0.5dbm
> > Return loss: ~20dbm
> >
> > Thanks
> > Rohit
> >
> > ps: I agree with a lot of people on this reflector that it doesn't make
> > sense to get into these discussions on and on. Everyone has their own
> > favourite connector and the protocol is anyway independent of whether you
> > use SC or LC or MT-RJ.
> >
> > _______________________________________________________
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>
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