[c-nsp] SPA Module compatibility

[Gert Doering]

Hi,

On Thu, Feb 20, 2014 at 11:18:40AM +0300, Alex Nyagah wrote:
> I have Cisco 3900 series routers and i want to get  E3 and DS3 lines from a
> local provider. Which SPA cards are compatible with the 3900 routers. I
> have ordered
> SPA-XT3/E3 but from the various sources am not sure it is compatible with
> the router.
> I will appreciate team advice..

There's good material on www.cisco.com about modules for cisco 3900 series...

  http://bit.ly/1eWROEy

What you need is "NM-" modules.

In any way, I'd avise against going for E3/DS3 - of all line types we had,
those are the worst to troubleshoot, and also having the most weird issues
(like "the signal from the telco to our PA-2T3 being too hot and requiring
6dB attenuation").

*Also* the interfaces are just ridiculously expensive.

I'd go for 100Mbit ethernet (not sub-rate) if possible - in many cases
this is actually cheaper, as carriers who have seen the light are actually
trying to get rid of E3/T3 interfaces as well.

gert
-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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