nanog mailing list archives
Re: POS OC48 interfaces using different wave length
From: Steve Feldman <feldman () twincreeks net>
Date: Thu, 7 Jun 2001 10:40:40 -0700
Are 1310 and 1550 optics comptatible ?Can humans see ultraviolet light? These are two different wavelengths. The equipment is specifically designed and built to _not_ allow interaction between different wavelengths. One can run 1310 and 1550 on the same fiber with WDM, but 1310 and 1550 won't talk to each other.
As someone already pointed out, the receivers are often wide enough to see both wavelengths. (Cheaper to build that way.) So it might work, depending on the loss and dispersion characteristics of the specific fiber installation. But I'd be surprised if Cisco would actually support that configuration... An WDM demultiplexer typically has a passive narrowband optical filter in front of the receiver to allow only the desired wavelength through. Steve
Current thread:
- POS OC48 interfaces using different wave length Vincent Gillet (Jun 07)
- Re: POS OC48 interfaces using different wave length Simon Lockhart (Jun 07)
- Re: POS OC48 interfaces using different wave length Wayne Bouchard (Jun 07)
- Re: POS OC48 interfaces using different wave length Dalvenjah FoxFire (Jun 07)
- Re: POS OC48 interfaces using different wave length John Fraizer (Jun 07)
- Re: POS OC48 interfaces using different wave length Mikael Abrahamsson (Jun 08)
- Re: POS OC48 interfaces using different wave length Steve Schaefer (Jun 08)
- Re: POS OC48 interfaces using different wave length Wayne Bouchard (Jun 07)
- Re: POS OC48 interfaces using different wave length Simon Lockhart (Jun 07)
- Re: POS OC48 interfaces using different wave length Steve Feldman (Jun 07)
- Re: POS OC48 interfaces using different wave length Steve Schaefer (Jun 07)
- <Possible follow-ups>
- RE: POS OC48 interfaces using different wave length pasi . vaananen (Jun 07)