[c-nsp] T1 crossconnect best practice?

Michael Loftis mloftis at wgops.com
Wed Sep 14 19:17:25 EDT 2005



--On September 14, 2005 11:55:05 AM -0400 Mike Andrews <mandrews at bit0.com> 
wrote:

> We've started getting into some situations where we'd like to sell raw
> point-to-point T1's to customers without Internet access on 'em.  For
> various reasons it's cheaper to run two T1's, one to each end, that come
> back to our central location, and then cross-connect them together,
> rather  than run one line end-to-end.  (Don't ask why.)  :)
>
> We could easily do that with a T1 crossover cable between the jacks, but
> we can't monitor the line for errors then...  plus, at some point soon we
> may bring them in on a channelized DS3 which will make that approach a
> bit  tricky without a mux.

If you want to do TDM, why not use a TDM system...maybe a Total Access 4303 
from Adtran?  Or the mutliservice modules for the Cisco platforms, I'm not 
sure if they're available for 7206's or not.  Not really sure if those 
provide the features you want, or use a DS1 patch bay panel...

Basically you need a frame with Digital Cross Connect capability or Time 
Slot Interchange capability...some M13 or T3 mux's with D&I also have this 
capability.  (and some will call these capabilities synonymous)


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