[48714] in North American Network Operators' Group
RE: GigEth regenerators
daemon@ATHENA.MIT.EDU (Daniska Tomas)
Thu Jun 13 08:49:09 2002
Date: Thu, 13 Jun 2002 14:47:32 +0200
From: "Daniska Tomas" <tomas@tronet.com>
To: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
to correct: imcnetworks don't specify, transmode does 3r oeo =
regeneration
--
=20
Tomas Daniska
systems engineer
Tronet Computer Networks
Plynarenska 5, 829 75 Bratislava, Slovakia
tel: +421 2 58224111, fax: +421 2 58224199
=20
A transistor protected by a fast-acting fuse will protect the fuse by =
blowing first.
> -----Original Message-----
> From: Daniska Tomas=20
> Sent: 13. j=FAna 2002 14:30
> To: nanog@merit.edu
> Subject: RE: GigEth regenerators
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> a brief summary of responses up to now:
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> - there are several vendors making some kind of sx-to-zx gbe=20
> converters (they call it gbe extenders), which gives an=20
> equivalent of a device with a zx gbic. these vendors include=20
> jdsu, luxn, extreme etc.
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> - two companies were found making gbe optical regenerators -=20
> imcnetworks and transmode
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> - other solution is to try with edfa
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> mikael: which exact gbic did you use?
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> i was comparing cisco-reselled gbics and their cwdm gbics=20
> seem to be more than 10dB better on power budget... anybody=20
> tried this in real life?
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> thanks again
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> --
> =20
> Tomas Daniska
> systems engineer
> Tronet Computer Networks
> Plynarenska 5, 829 75 Bratislava, Slovakia
> tel: +421 2 58224111, fax: +421 2 58224199
> =20
> A transistor protected by a fast-acting fuse will protect the=20
> fuse by blowing first.
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>=20
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> > -----Original Message-----
> > From: Mikael Abrahamsson [mailto:swmike@swm.pp.se]=20
> > Sent: 12. j=FAna 2002 17:48
> > To: nanog@merit.edu
> > Subject: Re: GigEth regenerators
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> > On Wed, 12 Jun 2002, Daniska Tomas wrote:
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> > > but for gigeth in this case - we need to connect two sites=20
> > about 200km
> > > apart over dark fiber
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> > Check out the 7020 from Transmode=20
> > <http://www.transmode.se/products/sing_dual.htm>
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> > Btw, my personal best so far is 150km over dark fiber using a=20
> > extra long=20
> > haul GBIC, 32dB loss over the fiber and it worked perfectly.=20
> > Only tested=20
> > it for 10 minutes, but there were no CRC errors during that time.
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> > +4dB output from the GGBIC, now we have to worry to not=20
> look into the=20
> > laser :)
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> > --=20
> > Mikael Abrahamsson email: swmike@swm.pp.se
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> >=20
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