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Pad 1310nm cross-connects?
- Subject: Pad 1310nm cross-connects?
- From: joelja at bogus.com (joel jaeggli)
- Date: Sun, 20 Oct 2013 12:11:52 -0700
- In-reply-to: <CAN8DL0XVDUV20-Wk6LYuuuufq22VnNznOVRvwL=_aYt90bagkg@mail.gmail.com>
- References: <CAN8DL0XVDUV20-Wk6LYuuuufq22VnNznOVRvwL=_aYt90bagkg@mail.gmail.com>
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.
On Oct 19, 2013, at 7:33 PM, Chris Costa <ccosta92630 at gmail.com> wrote:
> What are the opinions/views on attenuating short, 1310nm LR cross-connects.
> Assume < 20m cable length and utilizing the same vendor optics on each
> side of the link. Considering the LR transmit spec doesn't exceed the
> receiver's high threshold value do you pad the receiver closer to the
> median RX range to avoid potential receiver burnout over time, or just
> leave it un-padded?
>
> Thanks
>
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