English abbreviations from rs422 to rsc
- RS-422 (Recommended Standard 422 (ANSI/EIA standard for transmitting serial data))
- RS-423 (Recommended Standard 423 (EIA standard for transmitting serial data))
- RS-423A (Recommended Standard 423A2 (ANSI/EIA standard for transmitting serial data))
- RSA (Regimental Support Area)
- RSAA ((organization) Research School of Astronomy and Astrophysics, part of the Institute of Advanced Studies at the Australian National University)
- RSACi (Recreational Software Advisory Council on the Internet)
- RSAF (Royal Small Arms Factory (UK) (now closed))
- RSAI (Regional Science Association International)
- RSAIY (Running Strong for American Indian Youth)
- RSAS (RAND Strategy Assessment System)
- RSAT (Regulatory Sequence Analysis Tools)
- RSB (Railway Shop Battalion)
- RSBP (Recruit School By-Pass)
- RSC (Rotamer Side-Chain)