| Subject | English | Estonian |
| commun. | air-ground point-to-point data communication | õhk-maa-andmeside kakspunktkanal |
| commun., transp., avia. | air–ground point-to-point data communication | õhk-maa-andmeside kakspunktkanal |
| IT | data communication | andmeside (andmeedastusega ja selle korraldusega tegelev elektersidevaldkond) |
| comp., MS | Data Communications Equipment | Andmesideseadmed (One of two types of hardware that are connected by an RS-232-C serial connection, the other being a Data Terminal Equipment (DTE) device) |