Цепь 108/2 в соответствии со стандартом V.24

Цепь 108/2  в соответствии со стандартом V.24

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Цепь 108/2, в соответствии со стандартом V.24

Цепь 108/2, в соответствии со стандартом V.24 - название и назначение этой цепи описано в стандарте V.24 для DTE следующим образом:

“Data terminal ready.

Signals on this circuit indicate the status of the DTE.

The ON condition, indicating that the DTE is ready to operate, prepares the DCE to connect the signal-converter or similar equipment to the line.

The DCE may be connected to the line by a supplementary condition. Examples of such supplementary conditions include, but are not restricted to, the following:

– depression of a push button at the DCE;

– an incoming call in the case of automatic answering;

– a call request command from the DTE in the case of automatic calling.

The DCE maintains the connection so long as the ON condition persists, except that the ON condition shall not prevent the operation of disconnection functions optionally implemented in the DCE. Examples of such disconnection functions are noted in the definition of circuit 108/1.

The DTE is permitted to present the ON condition on circuit 108/2 whenever it is ready to transmit or receive data.

The OFF condition on this circuit causes the DCE to remove the signal-converter or similar equipment from the line when the transmission to the line of all data previously transferred on circuit 103 and/or circuit 118 has been completed. In the case where an intermediate function is Recommendation V.24 (02/2000) 7 implemented in the DCE, the DCE may delay the removal of the signal converter from the line until the protocol requirements of the intermediate function have been satisfied (e.g. outstanding data has been acknowledged or a timeout has occurred).

The OFF condition of this circuit may also be used to direct the DCE to abort or to clear a serial automatic calling operation (see Recommendation V.25 bis)”.

Группа сигналов и направление этого сигнала относительно DCE следующие: Управление, от DCE, выход.

Назначение цепи: терминал данных готов.

Сигналы на этой цепи показывают состояние DCE.

Состояние ON, показывает DTE, что DCE готов к работе.

Например, смотрите рисунок:

https://goo.gl/photos/YubkMvuvNUnUARaq5