The AVM ISDN-Controller B1 v3.0
Controller B1 v3.0 – 1 Introduction
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1.1 The AVM ISDN-Controller B1 v3.0
The AVM ISDN-Controller B1 v3.0 constitutes the connection
between the ISDN network and your computer.
Computer with AVM ISDN-Controller B1 v3.0
The ISDN-Controller is simply plugged into a free slot on the
ISA/EISA bus. The controller is connected to the ISDN basic
access over the S
0
interface on the controller. This interface
is connected to the ISDN access using the cable included in
the controller package.
The Active Operating Principle of the Controller
The AVM ISDN-Controller B1 v3.0 is an active controller and
simultaneously processes both B channels of an ISDN basic
access (2 x 64,000 bit/s). It owes its extraordinary capacity
to the high-power processor (Transputer IMS T400) located
on the controller. This processor makes the AVM ISDN-Con-
troller B1 v3.0 the ideal platform for software applications
with high demands on data throughput. The 1 MB RAM mem-
ory expansion makes it possible to load the protocols and
other programs directly on the ISDN-Controller, such that the
main memory and CPU of your computer are spared the com-
putation burden of ISDN communications.
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