Operation Manual

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2 All About FRITZ!Card USB

2.1 What Does the FRITZ!Card USB Require?

To operate the AVM ISDN-Controller

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SB, SB,

SB, you must

meet the following prerequisites:

• Your computer must have an USB port.

• You must have an IBM or 100% compatible computer with a

hard disk drive and a CD-ROM drive.

•

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ITZ!32 requires the Microsoft Windows 98 operating

system.

• If you want to use the

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.42bis features (see next page), we

recommend a Pentium CPU and 16 MB of RAM.

• Find out which ISDN D channel protocol is used on your line.

In Germany, this may be DSS1 or 1TR6. ISDN lines installed

after 1994 generally use DSS1 (Euro-ISDN).

If these requirements are met, you may install the

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SB.SB.

SB.

FRITZ!Card USB and the accompanying software have been developed

for stand-alone PCs, and are intended only to connect a single

computer to ISDN.

2.2 How Does an ISDN-Controller Work?

An ISDN-Controller connects a computer to the ISDN network.

The ISDN-Controller is connected to the S

bus by an ISDN cable.

Data flows from the computer through the ISDN-Controller to

the ISDN BRI (basic rate interface), and vice-versa.

As an integrated services, network ISDN lends itself to a wide

variety of applications, such as Internet access, file transfer, fax

and telephony. Its versatility, high throughput and multiple-

channel design, allowing the simultaneous use of different

services, place high demands on ISDN-Controller hardware and

software.

The driver software for the

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SB SB

SB is loaded from the

host PC’s hard disk when Windows 98 is started. The driver