[j-nsp] ACX5048 - 40 gbps ER 40 km optic

[Josh Reynolds]

Wrap it around a pencil a few times

On Oct 5, 2017 8:34 AM, "Chuck Anderson" <cra at wpi.edu> wrote:

> Insert a 3dB or 7dB attenuator pad for lab testing.  In a pinch (no pun
> intended) you can take a fiber jumper and bend it tightly into a loop (like
> 1/4" diameter) to attenuate the signal, but I would use a disposable jumper
> for that.  Use a twist tie or similar to hold it in the tight loop.
> Monitor the receive power level while adjusting the tightness of the loop
> until it is lower than -5 dBm but higher than -20 dBm.
>
> On Wed, Oct 04, 2017 at 07:04:05PM -0500, Aaron Gould wrote:
> > Well, when the transport eng I work with found out that I had these two
> 40km optics connected with a 3’ jumper he ran into the lab to disconnect
> it…. So that’s probably why you see no light right now…. Lemme get back
> into the office Monday and we will go from there… yeah, as I mentioned I’m
> working with my Juniper account SE on this, so he may update support matrix
> if he discovers they are good…. I dunno.
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