Te1 definitions

ISDN-compatible equipment. In other words, terminal equipment that can interface directly to an ISDN circuit via a four-wire twisted-pair S or T interface. Switches and routers must be natively ISDN-compatible in order to connect to ISDN circuits, typically at the U reference point on the local loop.Telephone sets and data terminals need not be ISDN-compatible.Those not compatible are classified as TE2 and connect through a terminal adapter (TA). See also compatible, four-wire circuit, ISDN, Reference Point U, router, S Interface, switch, TA, TE2, T Interface, and twisted pair.