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AW: New SFF optical connector

Do we see the same issues with MU ?

-----Ursprüngliche Nachricht-----
Von: Gair Brown [mailto:gdbrown@xxxxxxxxxxxxx]
Gesendet am: Freitag, 11. August 2000 20:01
An: Roy Bynum
Cc: stds-802-3-hssg@xxxxxxxx
Betreff: Re: New SFF optical connector


The use of the LC or the LX.5 should not be coupled with the use of
light weight cordage.  The LC can be terminated with 2.0, 2.5 or 3.0 mm
cordage.  Sounds like your vendor just chose to use the light weight
cordage to save cost.


Roy Bynum wrote:
> All,
> Has anyone seen the LX.5 connector?  I was shown one yesterday by someone
> that is doing connector specifications evaluations for the next generation
> of optical equipment.  It has a more robust latch than is on the LC
> connectors.  It also has integrated covers that protect the ends of the
> fiber plug and in the connector housing.  I have been told that in meets
> the same insertion life as the SC connector.  The company that I work for
> may not use SFF connectors because of the "bubba" factor, but it may be
> worth looking at by the TF.
> Field trials of equipment using LC connectors with 1.6mm fiber jackets are
> having a much higher patch cord failure rate (~30%) than what is normally
> seen with SC connectors with 2mm and 3mm fiber jackets.  These failures are
> fiber breaks within the jacket of the LC patch cord.  The failure mechanism
> is reported as "excessively rough handling", even though the installation
> people took extra care.  It may be that there is a point of diminishing
> returns on small form factor connectors and cabling reliability because of
> the "human" factor involved with installing and maintaining the
> equipment.  The LX.5 connector has a 1.7mm fiber jacket, so it may not be
> any more robust for nominal data room deployment than the LC.
> Thank you,
> Roy Bynum

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