| Subject | English | Spanish |
| comp., MS | synchronous data exchange | intercambio de datos síncrono (A style of processing where an application requests that an event occurs and waits for the event to complete, so that the application is certain of the result of its request before it proceeds) |
| commun. | synchronous data link control | control síncrono del enlace de datos |
| commun., IT | synchronous data link control | control de enlace de datos sincrónico |
| IT | synchronous data link control | control sincrónico de enlace de datos |
| commun. | synchronous data network | red síncrona de datos |
| commun. | synchronous data stream | cadena de datos síncronos |
| commun. | synchronous data string | cadena de datos síncronos |
| telegr. | synchronous data transmission | transmisión de datos |
| gen. | user synchronous data channel | canal de datos síncronos de usuario |
| gen. | user synchronous data channel | canal US |