User`s guide

Introduction
MASTER USER’S GUIDE 1/5
Every Security Card has a unique System Identification Number
or SIN programmed into it at the factory. If one Security Card is
removed and replaced by another, the computer will detect the
change and require the user to type in the SINs of both the old card
and new card. (If the new card had already been programmed with a
security configuration, that configuration is erased automatically.)
Important
The SIN is printed on a small label stuck onto the Security Card. To preserve
security, this label must be removed and the SIN recorded in a safe, secure
place together with the serial number of the card and the serial number of the
computer in which the card is installed.
What else is the SIN used for?
In exceptional circumstances it may be necessary to erase the
security configuration held in the Security Card’s memory. This can
be done by removing a jumper on the card (see Appendix A for
details).
Until the jumper is replaced the security system insists that the SIN
is entered whenever the computer is turned on or rebooted. The SIN
therefore provides a “fail-safe” mechanism in case the jumper is
removed maliciously in an attempt to by-pass security.
LOC Saver for Windows
LOC Saver for Windows is an optional software enhancement for
the Microsoft Windows for Workgroups v3.11 operating system.
When leaving the computer unattended for a time, a user can click
the button on his KeyLOC card to obscure the screen and lock the
keyboard and mouse; Windows continues working “behind the
scenes”. When the user returns, another click of the button cancels
unattended mode. See Chapter 4 for more information.
Telling users about the security system
You can photocopy Appendix B of this booklet and give copies to
each of the users of the computer as a Quick Guide To Security. You
may want to back this up by explaining further the terms shown in