[c-nsp] PA-POS-1OC3 vs. PA-A3-OC3SMI

[David Aldworth]

Hmm. Okay, so the PA-MC-T3 breaks the DS3 down to individual DS1's  
(T1's). Is there nothing equivalent at the OC3 level?

David

On Sep 18, 2008, at 12:58 PM, Justin M. Streiner wrote:

> On Thu, 18 Sep 2008, David Aldworth wrote:
>
>> We are looking for a fully channelized OC3 interface for a Cisco  
>> 7200 VXR. Something that we can break individual T1's off of. In  
>> researching this there are two routes: PA-POS-1OC3 or PA-A3-OC3SMI.  
>> The first is SONET and the second is ATM.
>>
>> Other than price what is the difference? Which is needed?
>
> I don't believe either interface supports anything other than  
> concatenated operation, i.e. a full 155 Mb/s interface; you can't  
> break the OC3 into its component STS slots to break out DS3, CT3,  
> T1, etc...
>
> Also, the interface you'd buy would be determined by the transport  
> type. A POS OC3 interface might be able to physicall terminate a ATM  
> OC3, but it won't be able do any of the ATM stuff.
>
> jms