Synchronous Data Link Control (SDLC) is a computer communications protocol.

Synchronous Data Encryption Equipment (SVKC)

Terminals could be connected to a 3274 controller, either channel connected to an IBM mainframe or linked via an SDLC (Synchronous Data Link Control) link.

Synchronous Data Link Control (SDLC)

Synchronous Data Link Control (SDLC) was originally designed to connect one computer with multiple peripherals.

SDTR (Synchronous Data Transfer Request)

Synchronous Data Link Control (SDLC), a protocol which greatly improved the efficiency of data transfer over a single link:

It was derived from IBM's Synchronous Data Link Control protocol, which is the layer 2 protocol for IBM's Systems Network Architecture developed around 1975.

Synchronous Data Link Control (SDLC) high speed wide area networks.

SDF-Domain (Synchronous Data Flow)