Apple LaserWriter Serial

It appears that you are using AdBlocking software. The cost of running this website is covered by advertisements. If you like it please feel free to a small amount of money to secure the future of this website.

connector wiring scheme

25 pin D-SUB female connector layout 25 pin D-SUB female connector

25 pin D-SUB male connector diagram 25 pin D-SUB male connector

Pin Name Dir Description
1 GND - Ground
2 TXD- OUT Transmit Data
3 RXD- IN Receive Data
4 RTS OUT Request To Send
5 CTS IN Clear To Send
6 DSR IN Data Set Ready
7 GND - Ground
8 DCD OUT Data Carrier Detect
20 DTR- OUT Data Terminal Ready
22 RING IN ?


  • Direction is Printer relative Computer.


Category:Computer Peripheral Connectors


© 1998-2024 – Nicola Asuni - - All rights reserved.
about - disclaimer - privacy