> I was thinking about an ISDN-only high density dialup solution and I
> came across the PA-MC-8E1. If I put 6 of these cards in a 7206VXR I can
> support up to 1440 ISDN calls at once.
The PA-MC-8E1 only supports 128 channels (B channels or D channels),
so it can only service 4 E1 PRIs. See
http://www.cisco.com/warp/public/cc/pd/ifaa/pa/much/prodlit/portm_ds.htm .
> Does this make sense or is there some reason this wouldn't work? Which
> could the drawbacks be when confronted with a 5400 -or even a 5800-
> without modems? Which would be a reasonable NPE for the box?
> regards,
> Alex
I'd look into a 5350 with 3 8E1 DFCs - this would give you 24 PRIs in 1 RU.
That's a lot of E1s in a rack. The 5400 also supports 24 PRIs but it's 2 RU
so you might as well go with the 5350. (CCO doesn't yet document that
the 5350 supports this configuration, but it does in 12.1(5)XM2.)
If you like big boxes, we've got a 24E1 blade coming for the 5850 which
would be worth looking into. You can put 4 of these blades into a chassis
for 96 E1s in 14RUs (DC). (Our docs say up to 88 E1s but I assume that's
only if you need to support modem traffic.) This will require two RSCs.
Cheers,
Aaron
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