HP 24SII manual +!+

BETWEEN COMPUTER AND COMPUTER THROUGH MODEL 24SII

When Computer A transmits data to Computer B through the Model 24SII DES, the data is received from Computer A and stored in a

512-character buffer which in turn retransmits it to Computer B. When the buffer fills, the Model 24SII DES will make the DTR line low to Computer A, signaling Computer A that it cannot accept more data.

When the Model 24SII DES retransmits the data to Computer B, the Model 24SII DES will expect to see a high on the CTS line. When Computer B cannot receive any more data, the Model 24SII DES will expect to see a low on the CTS line.

When the buffer of the Model 24SII DES can receive more data, the Model 24SII DES will make the DTR line high to Computer A.

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NOTE: The Model 24SII DES permits XON/XOFF to be enabled or disabled by port independently in the receive and transmit directions. The description of handshaking functions below considers XON/XOFF to be enabled in both directions. If XON/XOFF is disabled in one direction, that direction will support hardware handshaking as described in Section 7.3.1.

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