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Atari Portfolio connectors pinout

• PortFolio Credit Card Memory
• Portfolio system expansion connector
• PortFolio Serial Port
• Portfolio Parallel Port

Atari Portfolio serial port (HPC-102)

9 pin canon male at interface side

1	CD	Carrier Detect	6	DSR	Data Set Ready
2	RxD	Data Receive	7	RTS	Request To Send
3	TxD	Data Transmit	8	CTS	Clear To Send
4	DTR	Data Terminal Ready	9	RI	Ring Indicator
5	GND