电传打字通信线路转接器

communication line adapter for teletype (CLAT)

(通信)线路开通(接通)

разблокировка линии (связи)

电传打字机通信线路适配器

communication line adapter for teletype (CLAT)

作用线(传递数据的)热线(不需转接的通信线路)

дейсгвующая линия передачи данных

说明包含或支持（通常理解为在同一地点而不是由通信链路连接）多个终端的设施等。

Including or supporting more than one terminal(usually understood to beat the same location rather than joined by communications links).