Internal TDM Specification
This document specifies the I-TDM protocol. New modular architectures and standards (like PICMG 3.x) define communication systems that do not include a TDM backplane or TDM interconnect technology for LAN attached communication modules. TDM traffic has not been eliminated, just the legacy H.1×0 bus in next generation modular systems. Packet back-planes and LANs have replaced legacy physical interconnects, but there still needs to be a standard way of transporting TDM traffic from one module to another.