9-1
Chapter 9
4105-2 Memory Expansion
module
Description
The 4105-2 Memory Expansion module gives the 4101-2 Controller
sufficient memory to store up to 77,000 cardholder records. (The
Controller can store up to 13,000 cardholder records without a
memory expansion module fitted.) Note: you must not fit a 4105
Memory Expansion module to the 4101-2 Controller.
Installation
A memory expansion module plugs into its own special connector
labelled CONN12 on the 4101-2 Controller motherboard. The position
of CONN12 is shown in the diagram below.
CONN12