INCITS 189-1991[S2017]: Information Systems – Interface between Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) for Terminals Operating in the Packet Mode & Accessing a Packet-Switched Public Data Network Through Switched Access (Inactive)

CCITT Recommendation X.32 (1988) (henceforth referred to as CCITT Recommendation X.32 or X.32) specifies the interface between Data Terminal Equipment and Data Circuit-Terminating Equipment for terminals operating in the packet-mode and accessing a packet switched public data network through a public switched telephone network or an integrated
services digital network. Adopts the international X.32
standard, with modifications and extensions to apply to DTE/DCE interfaces.