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Pad 1310nm cross-connects?
- Subject: Pad 1310nm cross-connects?
- From: streiner at cluebyfour.org (Justin M. Streiner)
- Date: Sun, 20 Oct 2013 12:13:06 -0400 (EDT)
- In-reply-to: <[email protected]>
- References: <CAN8DL0XVDUV20-Wk6LYuuuufq22VnNznOVRvwL=_aYt90bagkg@mail.gmail.com> <[email protected]>
On Sun, 20 Oct 2013, joel jaeggli wrote:
> It's a pretty normal situation. even with a 1-2m jumper I see light levels that are well below the maximum rx levels for 10km optics. e.g. the max might be .5 and the actual readings are -1.4 - -2.7. our WDM terminals sit in the the adjacent racks to the pop routers so they're all like that.
>
> ER/ZR is another matter.
Yes, ER/ZR must be attenuated unless the run is sufficiently long. We
have a link that's a bit too long for LR, but we still had to attenuate
because the ER optics were reporting excessively high receive levels.
jms