DB9 Female-Female Null-Modem Adapter Pass 'Power Pin' 9

DB9 Female-Female Null-Modem Adapter Pass 'Power Pin' 9

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DB9 Female-Female Null-Modem Adapter

Passes all pins including 1 and 9 (commonly used to provide power to RS232 peripheral), get this device:

Swaps:
RxData & TxData lines (PINs 2, 3)
RTS & CTS lines (PINs 7. 8)
DTR & DSR, DCD [CD] lines (PINs 4 & 6,1)