[nsp] ONS15454 vs 12000 for the OC-3 demuxing

[Bill Wichers]

> So after having done a bunch of research and having learned quite a bit
> about Sonet vs. SDH, PoS, ATM etc. and realizing the constraints of the
> product we're buying, it seems like if we stay Cisco our two most
> logical choices are the ONS 15454 or a 12000 series.
>
> Right now I'm leaning toward the 12000 mainly because it's a real router
> whereas the ONS 15454 seems like more of an ADM (albeit a fancy one
> that's not limited to a given transport) that's going to leave me still
> needing router interfaces to handle circuits I break down with it.
>
> It certainly looks like this:
>
> CISCO 12000 SERIES 2-PORT CHANNELIZED OC-3/STM-1 (DS1/E1) LINE CARD
> http://www.cisco.com/en/US/customer/products/hw/modules/ps2710/ps189/index.html
>
> ...does exactly what I need. No PoS or ATM on this product, just allows
> me to peel of DS1s and supports "1310 nm single-mode (SM)". I can't tell
> if it's got SC or FC connectors, but I'm starting to suspect this is a
> non-issue (I've found at least two sources of convertors, Qwest says
> they are going to give me FC but most of the Cisco stuff I've seen has
> SC- since I have to have my demarc extended I'm assuming I can have my
> wiring contractors just terminate each end appropriately?)
>
> Anyone using the 12000 channelized OC-3 line card who can verify my
> belief that this is going to do the trick for us? Or any arguments for
> the ONS 15454, given that at most we will have two OC-3s at this
> particular site and nothing else for the foreseeable future since we are
> pushing most of our expansion circuits into a different POP not yet fed
> by an ICDF colo?)
>
> Thanks for all the responses! I received a couple privately that also
> indicated I was SOL for the 75xx/72xx channelized OC-3 options (we do
> have some PA-MC-T3s in service on 75xx and they work great btw :)
>
> Mike
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