National PAD Parameter 70 - Streaming Data Forwarding

National PAD Parameter 70 affects PAD data forwarding timing. When set to value 0, the data forwarding timing is controlled by PAD parameter 4. When set to value 1, streaming mode is set. This parameter, among others, may be set to configure a streaming mode PAD identical to that used in error-control/LAPB connections.

In streaming mode, a character received by the PAD is placed in a packet immediately, instead of being buffered until a time-out occurs. For example, assuming the modem transmitter is idle, a character received by the PAD is forwarded immediately. This packet remains open in case another character is received by the PAD. The additional character can be added while the packet is actually transmitting.

The result is instantaneous forwarding, which generally results in the best interactive performance. This may cause more packet traffic. This is no problem in point-to-point connections, but may be of some concern for networks that charge by the packet.

National PAD Parameter 70 supports the following values:

Values   Description                                   

0        PAD Parameter 4 controls data forwarding      

         time-out (factory setting)                     


1        Streaming data forwarding time-out

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