[c-nsp] PA-MC-E3 7200 Port Adapter

Jon Lewis jlewis at lewis.org
Wed Nov 16 15:28:48 EST 2005


On Tue, 15 Nov 2005, Mark Tinka wrote:

> Searching 'cisco.com' brought me to the PA-MC-E3. Can
> this PA do what I need? I suppose the backbone provider
> would need to be able to present an E3 to my main PoP,
> but carry that and demux it as an E1 and nx64Kbps at each
> of the other sites and customers, or mux multiple site
> E1's into an E3 at the main PoP.

Even if your telco/backbone provider can't/won't provide you with a 
channelized E3 to plug into the PA-MC-E3, you can probably do that 
yourself.  Being in the US, we have T3 rather than E3, and we use lots of 
PA-MC-T3 cards, sometimes doing the T1-T3 muxing ourself using M13 muxes. 
You could do the same using an E1/E3 mux.

In some cases it might be cheaper to buy the mux and make the E3 yourself 
rather than pay the telco for E3 handoff.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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