In this version, I didn’t bother to add labels, etc.–and I might consider putting the two series on slightly separate lines–but I think you get the idea. Again, I used horizontal error bars to link the series together. It might also be worth sorting the data on one of the variables instead of by Channel number, unless it makes particular sense to sort in that way. Here are two posts about dot plots that you might find useful: http://peltiertech.com/Excel/Charts/DotPlot.html and http://thewhyaxis.info/gap-remake/.

Jon

In Excel, I think all you need to do here is to organize your data such that you have a space between categories. Then you can just create two line series that will show the separate segments. I’ve added the breaker lines as you drew them by adding a scatterplot series with the x values set at the basic increments and the y values set at 0. I then added a negative error bar equal to the height of the y-axis (14,000). Note: When you set this up, be careful to extend the series one row above the first number and one row below the last number. This will get you the spacing right.

Jon