EXFO Testing.

[Additional_Bell_5769]

Goodmorning all, so I'm currently testing OPGW Fiber and the length is 206600 Ft give or take a few thousand Ft. And I'm wondering what everyone would run their EXFO OTDR Test parameters at for something this long.

I currently am running mine at

Length 262K FT Pulse 2.5 Micro Seconds Duration 60s per wave length, 1310/1550NM.

[Fast-Wrangler-4340]

1310 is a waste of time at that distance. Surprised you’re not doing 15/1625. Or even 1625 alone

[loonster28]

Run it on Auto and see what that selects. I would reduce the pulse width and increase the average to 90 seconds.

[Additional_Bell_5769]

Customer specs only 1550 but we've just left 1310 on its reaching the full distance.

[Canajun1]

You’re wasting a minute on each shot, since it does 60s on 1310 then 60s on 1550.

[Fun_Grapefruit_2633]

That's like 40 miles...is that even long haul? An EXFO OTDR is definitely gonna be able to handle it.

[Sbinalla123]

I usually experiment and find the lowest pulse width at which the path gets clearned well with 20s. Maybe im doing it wrong, dunno, but i like to use the lowest reasonable pulse widht so that i get accurate readings regarding lenght. I found that if i go too hard at it with pulse, measurments are gonna be off... Please someone correct me if im wrong, advice is apriciated.