# Synchronous Data Link Control

> computer communications protocol from IBM's Systems Network Architecture (SNA)

**Wikidata**: [Q1517778](https://www.wikidata.org/wiki/Q1517778)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Synchronous_Data_Link_Control)  
**Source**: https://4ort.xyz/entity/synchronous-data-link-control