Ref: 99980130
Title: M3MMON PROM Revision 00B
Date: 7/24/87

Copyright 3Com Corporation, 1991.  All rights reserved.

Enclosed is an M3MMON PROM Rev. 00B, which is installed on the
MCPU20 board in the Series/1 system.  The PROM contains the
diagnostics program and the monitor of the MCPU20 board.

.h1;Installation

The PROM is installed on the MCPU20 board before shipment.  If
for any reason you obtain an M3MMON PROM separately from Bridge
to replace the installed PROM, follow these steps:

1.  If the rows of pins are too far apart to fit into the
sockets, press them closer together by pushing one row of pins
against a flat surface.

2.  Locate component position U27 on the MCPU20 board.  The
socket at this location is larger than the PROM, and the four
leftmost holes of this socket are not used.  Gently push the PROM
into the socket.  Be sure that the notch in the PROM is oriented
in the same direction as the corresponding notch marked on the
MCPU20 board.

.h1;Compatibility

Current software programs that operate with the MCPU board in the
Series/1 system are not compatible with M3MMON PROM Rev. 00B.

If you have any questions, contact an authorized 3Com service
representative for assistance.
