| Abbreviation | Definition |
|---|---|
| RS | Remote Server |
| RS | Remote Switch |
| RSA | Rivest-Shamir-Adleman |
| RSACi | Recreational Software Advisory Council on the Internet |
| RSAT | Remote Server Administration Tools |
| RSCN | Registered State Change Notification |
| RSF | Redundant Server Facility |
| RSF | Route Switch Feature |
| RSFC | Route Switch Feature Card |
| RSH | Remote SHell |
| RSI | Random Section Interface |
| RSI | Requirements Service Interface |
| RSM | Received Sync Message |
| RSM | Route Switch Module |
| RSN | Regional Service Network |
| RSN | Robust Security Network |
| RSP | Route-Switch Processor |
| RSPAN | Remote Switched Port ANalyzer |
| RSPN | Rural Support Programmes Network |
| RSS | Remote Support Software |