Optics and Optical Networking

Engage with peer and Cisco experts about pluggable optics (Optics) and optical transport networks (Optical Networking).
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Recently we just switch from CES over an ATM backbone to SONET (454s and 327s). We have a requirement for point-to-point T1 circuits. The circuits worked fine over CES and all we did was move the circuits to the SONET. The tail end of the circuit rem...

wgayhart by Beginner
  • 1 replies
  • 0 Helpful votes

I have a slight problem that I need some help on. We just ordered a GIG E connection from our bldg to our Co-Lo facility. The problem we are having is that when it was ordered by the engineer in charge of the project he thought that he could termin...

bolds04 by Beginner
  • 2 replies
  • 0 Helpful votes

Many of my LX fiber connections have been going down recently. When I test the gbic with a light meter I get around -30 to -40 dbm, which is really low. I then replaced them with spares and the link comes back up every time. The new gbic's light le...

joveroc by Beginner
  • 3 replies
  • 0 Helpful votes

When looking at the monitor jack of a 15216 OADM with an optical spectrum analyzer, I am seeing for lack of a better term, negatives spikes (like a relection) there are two of them. These are between the first wavelength, and the second wavelenght. T...

menzelbob by Beginner
  • 4 replies
  • 0 Helpful votes