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  From: Andrew Gosling <gossie@pcpro.net.au>
  To  : Andrew Reid <andrew.reid@plug.cx>
  Date: Tue, 22 May 2001 14:29:01 +0930

Re: ISDN PRI capacity

True, but when considering what it is possible to fit, you also need to look
at what is practial and what effect each module has on the overall
performance of the unit, a 3640 is a 100Mhz R4700 with up to 128Mb of RAM, a
3620 is 80Mhz R4700and 64Mb RAM, while a 5300 Access Server is 150Mhz R4700
with up to 128Mb RAM.

Point is that the 5300 is more powerful than all but the 3660, but only
terminate calls. Putting 120 Modems and pulling a 2Mb data link is possible
with a 3600, but it might not give the best performance, hence my comment
that it would only suit a small, ie 30 modem plus data link.

Andrew

> > The 3600 is a module unit, it can have a modem card fitted.
>
> Several, in fact. It depends on which model you buy out of the 3600
> series range, though.
>
> > For a small setup it isn't a bad option, 30 modems in one slot and a
serial
> > WIC to give you MegaLink, frame etc. In bound calls and data feed in one
> > box.
>
> Even for a larger than small setup it's OK. 6 slots gives you the
> ability to have a couple of dual-interface PRI cards and modems. 120
> lines is enough to cater for quite a few users. Obviously not enough for
> service-provider level, but hey, I'm not trying to be Internode here :-)


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