dec-keyb-mouse-adapter

This document describes a DEC Keyboard & Mouse Adapter that converts a DB15 port to separate DIN and RJ connectors for older DEC peripherals.

Key points:

• Purpose: To allow DEC keyboards (e.g., LK401/LK201) and DEC puck-compatible mice (e.g., VSXXX-GA/VSXXX-AA) to connect to DECstations or DEC 3000 systems equipped with a DB15 keyboard/mouse port.

• Pin Assignments: The core of the document is a table detailing the pin connections from the computer's DB15 socket to:

  • A 7-pin DIN socket for the mouse.
  • A 4-pin RJ "jack" socket for the keyboard.

• Port Information: Diagrams show the pin numbering for the mouse (DIN) and keyboard (RJ) ports, noting that both are socket types (DIN has holes) and should be viewed with the socket facing the viewer. The DB15 connector uses standard pin numbering.