Macintosh Signal Description | Mac DIN 8 Male | PC DB 25 Female | PC DB 9 Female |
---|---|---|---|
HSKo (Output Handshake) | 1 (OUT) | 5, 6, 8 (CTS, DSR, DCD) | 8, 6, 1 (CTS, DSR, DCD) |
HSKi (Input Handshake) | 2 (IN) | 4 (RTS) | 7 (RTS) |
TxD- (Transmit Data -) | 3 (OUT) | 3 (RxD) | 2 (RxD) |
GND (Signal Ground) | 4 (GND) | 7 (GND) | 5 (GND) |
RxD- (Receive Data -) | 5 (IN) | 2 (TxD) | 3 (TxD) |
TxD+ (Transmit Data +) | 6 (OUT) | - | - |
GPi (General Purpose Input) | 7 (IN) | 20 (DTR) | 4 (DTR) |
RxD+ (Receive Data +) | 8 (IN, GND = RS232 Mode) | 7 (GND) | 5 (GND) |