FXS
| Acronym | Definition |
|---|---|
| FXS | Foreign Exchange Subscriber |
| FXS | Foreign Exchange Station |
| FXS | Fragile X Syndrome (aka Martin-Bell syndrome; genetic disorder) |
| FXS | Fax Transmit Format |
| FXS | Foreign Exchange Service |
| FXS | Foundation Express Sales (certification course; Cisco) |
| FXS | WinFax Pro Filename Extension Fax Sent |