User's Manual

2 – 1
C h a p t e r 2
Architectural overview
This chapter describes the ‘big picture’ of the
online B.A.S.I.S.® access control system world
and how the offline B.A.S.I.S. G and V product
fits into that world.
The B.A.S.I.S. product line is composed of two
general architectural models used to address the
security needs of most customer requirements
and applications. These two models can be gen-
erally categorized as
online and offline.
In an online application most access control deci-
sions are performed by a component called an
Intelligent System Controller (ISC) or Access
Panel. The ISC is a circuit board with on-board
memory, and this on-board memory must be
configured by users who understand access con-
trol functions and features.