Apple LaserWriter Serial connector

#Computer#Serial Interfaces#Apple
25 pin D-SUB FEMALE connector pin-out & layout

25 pin D-SUB FEMALE connector

PinNameDirDescription
1GND---Ground
2TXD--->Transmit Data
3RXD-<--Receive Data
4RTS-->Request To Send
5CTS<--Clear To Send
6DSR<--Data Set Ready
7GND---Ground
8DCD-->Data Carrier Detect
20DTR--->Data Terminal Ready
22RING<--?
Note: Direction is Printer relative Computer.

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