POS OC48 interfaces using different wave length

Thu Jun 7 17:08:46 UTC 2001

So I guess the right answer here is that everyone needs to learn how
to use attenuators propperly...

On Thu, Jun 07, 2001 at 05:45:21PM +0100, Simon Lockhart wrote:
> 
> >I am thinking about using different POS interfaces on dark-fibers.
> >
> >On one side, i already have POS-OC48-LR card (Cisco).
> >This card use 1550 nm wave length.
> >
> >We would like to use a POS-OC48-SR (Cisco).
> >This card use 1310 nm wave length.
> >
> >Are 1310 and 1550 optics comptatible ?
> 
> You have to have the same wavelength at both ends, otherwise it won't work.
> 
> >If yes, i guess that there is impact on the power Budget available. How-Much ?!
> 
> LR tends to be 1550nm, because 1550nm has less signal loss over the same 
> length of fiber.
> 
> Simon
> -- 
> Simon Lockhart                       |   Tel: +44 (0)1737 839676 
> Internet Engineering Manager         |   Fax: +44 (0)1737 839516 
> BBC Internet Services                | Email: Simon.Lockhart at bbc.co.uk 
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> 