Duplex High Speed Data

(DHSD) A term which describes a full-duplex channel that can carry 64 kilobits per second.

This is the kind of service provided by an Inmarsat-B type portable earth station or a leased line (not ISDN).

Nearby terms:
Dungeon « dup killer « duplex « Duplex High Speed Data » dup loop » Durra » dusty deck