. . . . . . . . M F 1 - 3 1 2 - 4 2 - 6 3 - 6 3 - 4 4 4 - 8 5 - 8 5 - 1 6 6 7 - 5 7 - 3 8 - 8 8 - 7 20 - 7 20 - 2 serial DIN-8 (Challenge/Onyx) __---__ / 2 \ /4 5\ / \ ( 1 8 3 ) \ / \ 6 7 / ---___--- Pin_|_Name___|_Description________ 1 | DTR | Data Terminal Ready 2 | CTS | Clear To Send 3 | STEREO | Stereo field sync 4 | RD | Receive Data 5 | TD | Transmit Data 6 | SG | Signal Ground 7 | GND | Ground point 8 | V10P | 10V supply Serial DIN-8 Indy/Indigo2 --------- / 8 7 6 \ ( 5 4 3 ) \ 2 1 / --------- 4D Compatible Pin Assignments (RS-232) _________________________________________ _Pin___|_Name____|_Description___________ 1 | DTR | Data Terminal Ready 2 | CTS | Clear To Send 3 | TD | Transmit Data 4 | SG | Signal Ground 5 | RD | Receive Data 6 | RTS | Request To Send 7 | DCD | Data Carrier Detect 8 | SG | Signal Ground Macintosh SE Compatible Pin Assignments (RS-422) _________________________________________________ Pin__|_Name__|_Description_______________________ 1 | HSKo | Output Handshake 2 | HSKi | Input Handshake Or External Clock 3 | TxD- | Transmit Data - 4 | GND | Signal Ground 5 | RxD- | Receive Data - 6 | TxD+ | Transmit Data + 7 | GPi | General Purpose Input 8 | RxD+ | Receive Data + null modem: TD <-> RD RD <-> TD SG <-> SG --- RTS - CTS CTS - RTS DCD