Pin no use on PCI RS 232 ISOLATE 4 PORT RJ45

j'ai une carte PCI RS 232 isolé, il y a plusieurs signaux non utilisables ou non utilisé en mode isolé (Pin 2,5,7,10=RI,DSR,DTR,DCD) sont ils important au bon fonctionnement de la carte.
De plus le mode DCE est valable que sur les cartes USB 232 equipé de 2 ou 4 PORT. Ma carte PCI supporte elle le mode DCE.

Vous êtes correct - pin 2,5,7,10 n'existe pas sur les cartes PCI-232 isolé. La plupart des applications n'emploient pas ces signaux.
Usb-232 soutient des modes de DTE et de DCI. La plupart des cartes série sont DTE, mais certaines applications telles que la fabrication exigent la capacité d'émuler un dispositif de DCE.

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