Originally posted by Silversam:
Dex -
You're right. Many mux's contain "Low Speed" (T-2) cards or segments. It's just that no one orders a T-2 anymore. I don't think it's even an available option on any of the Carriers order forms any more. I would be surprised if anyone had seen a request for one in the last 20 years.
Sam
In the Telco world T2 (TDM) still looks to be an “orderable option.â€Â

(I was surprised to find coding that was still valid for it... Who knew!

LOL ) I’ve NEVER seen an order for a T2 and honestly would not know of a way to even deliver it to a customer/end-user.
The SONET equivalent of T2 is VT6 (virtual tributary) 6.912 Mbs would be a valid option but I'd only expect to see it being used between two carriers (IXC’s, LECs, CLECs etc) … Or as Dex mentioned for internal usage only, in order to drop down a MUX low-speed card (quad-card.)