PSI 16 PORT FR I/O CARD The programmable serial interface (PSI) I/O card provides 16 ports configurable as V.35, X.21 or V.28/RS-232 physical interfaces. The physical interface is a 26-pin SCSI D-shell, so appropriate adapter cables must be used for V.28,

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Please specify your question about PSI 16 PORT FR I/O CARD The programmable serial interface (PSI) I/O card provides 16 ports configurable as V.35, X.21 or V.28/RS-232 physical interfaces. The physical interface is a 26-pin SCSI D-shell, so appropriate adapter cables must be used for V.28, *

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