PS/2-to-Serial Mouse Adapters

Kenn's
Tech
Notes

20010304: PS/2-to-Serial Mouse Adapters

March/2001
Tech Note #4

Trevor and Bruce have this interesting information to share. As we all know, there are two standard types of mouse commonly used with PCs these days: PS/2 and serial. Both have been around for many years, but recently the PS/2 variety seems to be supplanting the serial type. New computers these days almost universally ship with PS/2 mice. It is difficult to order serial mice nowadays, although many mice come with a PS/2-to-serial adapter.

Because both the PS/2 connector and the serial connector must conform to long-standing international standards, it stands to reason that any PS/2 mouse can be connected to any serial port using any PS/2-to-serial adapter, right?

Wrong! Much to my surprise, I was shown that a Microsoft PS/2 mouse - which works fine on any PS/2 mouse port - would not work with a generic PS/2-to-serial adapter or with a Dexxa PS/2-to-serial adapter. It worked just fine using a Microsoft PS/2-to-serial adapter, though.

DISCLAIMER: This document is intended for the reference of computer support personnel within Winnipeg School Division No. 1. There is no warranty or liability if procedures recommended here have an adverse affect on any systems. Use them at your own risk. Any trademarks mentioned are the property of their owners, none of whom have certified any information provided here. Opinions expressed here are personal only and do not represent the policy of Winnipeg School Division No. 1 or any other organization anywhere.

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2001 June 9

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