Ref: 20320004
Title: New Version of EtherLink/MC Requires New Option Diskette
Date: 9/28/90

Copyright 3Com Corporation, 1991.  All rights reserved.

A new version of the EtherLink/MC adapter (3C523) and Option Diskette were
released on May 26, 1990.  The new versions can be identified by these
numbers:

  EL/MC Top Assy# 4282-04 (Label outside the box)
        Board Assy# 4233-03 (on board)
        Serial number with prefix 3YA or later (outside the box and on board)

  Option Diskette 4351-04 or 6848-00 or later

The installation diagnostics on Option Diskette 4351-03 and earlier do
NOT work with the new EtherLink/MC adapter.  Also, earlier versions of the
adapter used with either old or current versions of the Option Diskette will
NOT pass diagnostics in a 486-based machine.  You may see "Adapter not found"
or other error messages.

If the adapter is to be used in a high-network load environment, 3Com
recommends using only the newer, faster adapter.

