[c-nsp] High Density T1 Question

Tim Franklin tim at colt.net
Tue Jan 23 04:54:27 EST 2007


> I would prefer not to convert from HDLC to something else. I currently
> have DS3 terminating onto 7513s - I am trying to do the exact 
> same thing
> - only maybe at the OC12 level. I currently support over 500 
> T1s on two
> 7513s so overall density of the 7513 platform is not an 
> issue, just the
> lack of line cards capable of terminating more that 28 T1s 
> per card (or
> 56 in the case of the PA-MC-2T3). 

There is a channelised OC12 OSM that channelises all the way down to DS0.
You can run channel-groups (N x 64K) or unframed on each individual T1/E1 (I
believe we've only tested for the latter, but I assume T1 functionality is
equivalent).

It does sound less dense than 4 x (4xCT3 SPA) in a SIP, as proposed
elsewhere, but I don't know how the pricing stacks up.

Prior to that, we've used channelised OC3 PAs in a Flexwan, but I think you
have wisdom in avoiding Flexwan :)

Regards,
Tim.

-- 
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