Synchronous Data Link Control
<communications> (SDLC) An {IBM} {protocol}.
A discipline conforming to subsets of the {ADCCP} of {ANSI}
and the {HDLC} of the {International Organization for
Standardization}. SDLC manages synchronous, code-transparent,
bit-serial communication which can be {duplex} or
{half-duplex}; switched or non-switched; {point-to-point},
{multipoint}, or loop.
Compare {Binary Synchronous Communication}.
(1995-03-22)