[c-nsp] Question for PA OC3 guru?

[Jay Hennigan]

Security Team wrote:
> I have a telco that wants to hand me an OC3 on which there will be 3 DS3's,
> all doing different things. One will be a clear channel (pt-pt) DS3, one
> will contain 28 T1's in the DS1 time slots of the DS3, and one will be
> unused for the time being.
> 
> I want to buy a PA card to use in a 7200VXR and found the single-mode fiber
> one PA-POS-OC3SMI.  My question is will this card allow me to take the T1
> timeslots of the #2 DS3 and use them like I do elsewhere in a PC-MC-T3 card?
> Ala:
> !
> ! 1 Channelized T3 port(s)
> !
> controller T3 1/0/0
>  t1 1 channel-group 0 timeslots 1-24
>  t1 2 channel-group 0 timeslots 1-24
>  t1 3 channel-group 0 timeslots 1-24

No such PA.

Your best bet is a mux of some sort such as Adtran Optimux, and a then 
use a PA-T3 and a PA-MC-T3 in the router.  I believe that the latest 
versions of the PA-MC-2T3 are capable of supporting both a clear channel 
T3 and a channelized one, but if you have an extra PA slot you'll find 
that the cost of a PA-T3 and a PA-MC-T3 will be a lot less than using 
one circuit of a dual PA-MC-T3 for a clear channel circuit.

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV