Adaptec USBConnect2000 User manual

USER’SGUIDE
USBCONNECT 2000

Adaptec, Inc.
691 South Milpitas Boulevard
Milpitas, CA 95035
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© 1999 Adaptec, Inc.
All rights reserved. Adaptec, and the Adaptec logo
are trademarks of Adaptec, Inc. which may be regis-
tered in some jurisdictions.
Printed in Singapore
STOCK NO.: 512323-00, Rev. A MO 7/99

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▼ ▼ ▼ ▼ USBConnect 2000
User’s Guide

iii
▼ ▼ ▼ ▼ Contents
Introduction
Overview 1
Contents of Kit 2
System Requirements 2
Installing the USBConnect 2000 Adapter
Hardware Installation 3
Software Installation 4
Completing the Installation
Installing the Windows 98 Driver 5
Installing Macintosh 6
Understanding SCSI
SCSI IDs 7
Terminating the SCSI Bus 8
Obtaining SCSI Cables 8
Troubleshoting
Contacting Adaptec
Electronic Support 13
Technical and Product Support 14
Sales and Ordering Information 14

1
Introduction
Congratulations on your purchase of Adaptec’s USBConnectTM 2000
adapter. The USBConnect 2000 adapter allows SCSI devices to plug
into the Universal Serial Bus (USB) port of your PC or MAC
computer.
The built-in SCSI controller in the USBConnect 2000 adapter allows
you to connect up to seven SCSI devices to your desktop or portable
PC or MAC. These devices include the Iomega Jaz drive, CD-ROM
drives, hard disk drives, Magneto-optical (MO) drives and most
scanners.
Overview
The USBConnect 2000 adapter is designed as an integrated adapter
and 50-pin high-density (SCSI 2) connector and is available as a
■USB-to-SCSI with a 50 pin Micro-D SCSI-2 type connector
Note: The USBConnect 2000 adapter is designed as a self-
powered device and as such receives it’s power from the ter-
mination power line of the attached SCSI devices. As a
result, all SCSI devices must supply termination power.
Some devices such as the Iomega Zip drive and some
scanners do not provide termination power and therefore
can only be used if they are attached to the SCSI chain with
another SCSI device that provides termination power.

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USBConnect 2000 User’s Guide
Contents of Kit
■USBConnect 2000 adapter
■CD-ROM for Windows®98 and Macintosh OS v8.5
■USBConnect 2000 adapter User’s Guide
■Registration Card
System Requirements
■Macintosh, PC or Portable PC with a USB compliant port
■Windows 98 on PC or Portable PCs or Macintosh v8.5 on iMac,
G3s or PowerBook
■SCSI device such as CD-ROM scanner, hard disk drive, Jaz
drive, MO or other SCSI device with termination power

3
Installing the USBConnect 2000 adapter
Installing the USBConnect
2000 adapter
The following information describes the hardware and software
installation for the USBConnect 2000 adapter.
Hardware Installation
Follow these steps to install the USBConnect 2000 adapter:
1Remove the USBConnect 2000 adapter from its packaging.
2Connect the USBConnect 2000 adapter into the SCSI device
you want to connect.
3Connect the USB connector (small end) into your systems USB
port. (See diagram below.)
4If attaching the USBConnect 2000 adapter through a USB hub,
we recommend using A/C powered hubs.
Note: The USBConnect 2000 adapter receives its +5V
power from the terminator power line of the attached SCSI
device. See Terminating the SCSI Bus, on page 8.
USB Port
USB Connect

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USBConnect 2000 User’s Guide
Note: Do not turn on the power until the SCSI device is
attached to the USBConnect 2000 adapter. Once the attach-
ment is made, you can make the connection with the power
either on or off.
Note: The USBConnect 2000 adapter is hot-pluggable, that
is you can connect and disconnect it from a live system.
This completes the physical installation of your USBConnect 2000
adapter. Next you need to install the installation CD.
Software Installation
Follow these steps for the software installation of the USBConnect
2000 adapter:
1Insert the USBConnect 2000 adapter CD into the CD-ROM.
2Click Run, then type c:setup (or use the appropriate CD-ROM
letter) in the Run dialog box.
3Click OK.
4Follow the instructions on the screen to complete the setup
process.

5
Completing the Installation
Completing the Installation
Installing the Windows 98 Driver
When you attach the USBConnect 2000 adapter, Windows 98 will
automatically detect it. If it is your first time attaching the adapter to
your system, Windows 98 will prompt you to install the driver from
the CD included with your kit. Follow the steps in this section to
install the Windows 98 driver:
1Connect the USBConnect 2000 adapter to the SCSI device(s).
2Power on the SCSI devices.
3Connect the adapter to your system USB port.
4If Windows 98 is not running, start it now.
5If the USBConnect 2000 adapter is not already inserted in the
USB port, insert it now. If no prompt appears, continue with
the next step.
6If a New Hardware Found dialog box appears, insert the
USBConnect 2000 adapter CD-ROM in the CD-ROM drive and
click OK to install the driver. Continue following the instruc-
tions on the screen.
Note: Windows 98 will not recognize the USBConnect 2000
adapter unless it is attached to a SCSI device and it is
powered on.

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USBConnect 2000 User’s Guide
Installing Macintosh
Follow the steps in this section to install the USBConnect 2000
adapter on a Macintosh:
1Power up your Macintosh and insert the enclosed USBConnect
2000 adapter CD-ROM in the CD-ROM drive.
2Double click on the USBConnect 2000 installer application.
3Restart your Macintosh.
4Connect the USBConnect 2000 adapter to the USB port.
5Connect the USBConnect 2000 adapter to the SCSI device(s).
6Power on your SCSI device.

7
Understanding SCSI
Understanding SCSI
SCSI (pronounced “scuzzy”) stands for Small Computer System
Interface. SCSI is an industry standard computer interface for
connecting SCSI devices (such as hard disk drives, CD-ROM drives,
and scanners) to a common SCSI bus.
A SCSI bus is an electrical pathway consisting of a SCSI adapter
(such as the SlimSCSI®Adapter) installed in a computer and one or
more SCSI devices. SCSI cables are used to connect the devices to the
SCSI card. For the SCSI bus to function properly, SCSI IDs must be
assigned to the SCSI devices and the SCSI adapter, and the SCSI bus
must be properly terminated.
SCSI IDs
Each device attached to the USBConnect 2000 adapter, as well as the
adapter itself, must be assigned a unique SCSI ID number from 0 to
6. A SCSI ID uniquely identifies each SCSI device on the SCSI bus
and determines priority when two or more devices are trying to use
the SCSI bus at the same time.
■The USBConnect 2000 adapter is preset to SCSI ID 7, which
gives it the highest priority on the SCSI bus.
■In Windows® 95/98 you can use the Device Manager to view
the SCSI ID and other information about each installed SCSI
device.
■If you installed Adaptec EZ-SCSI®software, you can use the
SCSIExplorer™ utility to view the SCSI ID and other informa-
tion about each installed SCSI device.

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USBConnect 2000 User’s Guide
Terminating the SCSI Bus
To ensure reliable communication on the SCSI bus, terminators must
be installed (or enabled) on the devices at the physical ends of the
SCSI bus. The terminators on all devices between the physical ends
must be removed (or disabled). Termination on the USBConnect
2000 adapter is permanently enabled, since it is always at one end of
the SCSI bus.
There are various methods for terminating hard disk drives and
other SCSI devices. Read the device documentation if you are not
sure how to do this. Here are some general guidelines for termina-
tion:
■Termination is usually controlled by installing or removing a
SCSI terminator. On some SCSI devices, termination is con-
trolled by setting a switch on the back of the device.
■Most SCSI devices come from the factory with termination
enabled.
Obtaining SCSI Cables
You will need additional SCSI cables if you connect more than one
SCSI device to your USBConnect 2000 adapter. It is important to use
high-quality cables to ensure that data is read and written correctly.
Adaptec provides high-quality SCSI cables designed specifically for
use with the USBConnect 2000 adapter. (To order Adaptec SCSI
cables, call 1-800-442-7274, Monday to Friday, from 6 a.m. to 5 p.m.
Pacific Time).

9
Understanding SCSI
Connector Types
Several different types of SCSI connectors are used on SCSI devices,
and each type requires a different kind of cable. The following three
diagrams illustrate the different kinds of SCSI connectors:
The total length of cabling on the SCSI bus should not exceed the
maximum lengths listed in the following table:
Maximum Cable Lengths
Max Devices Supported Data Transfer Rate Max Cable Length
7FastSCSI
(10 MBytes/sec) 3 m (9.8 ft.)
75MBytes/sec
(Asynchronous or Synchro-
nous)
6 m (19.7 ft.)
SCSI-2 High-density 50-pin Connector
Typically used with high-performance CD-ROM drives, hard disk drives, Jaz drives,
and Plug and Play devices.
SCSI-1, Low-density Centronics 50-pin Connector
Used with many CD-ROM drives, hard disk drives, SCSI tape drives, and scanners.
DB25 Connector
Used with Iomega ZIP drives, Syquest EZFlyer, etc.

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USBConnect 2000 User’s Guide
Troubleshooting
If you have problems with the USBConnect 2000 adapter resulting
from errors in preparing and connecting the SCSI devices to it, check
the following troubleshooting tips.
My device is not recognized. How can I get the system to recognize my
device.
1The USBConnect 2000 adapter is designed as a self-powered
device and as such receives it’s power from the termination
power line of the attached SCSI devices. As a result, all SCSI
devices must supply termination power. Some devices such as
the Iomega Zip drive and some scanners do not provide termi-
nation power and as such can only be used if they are attached
to the SCSI chain with another SCSI device that provides ter-
mination power.
2The SCSI devices must be powered on before the system
acknowledges the USBConnect 2000 adapter. Power on all
SCSI devices and plug back into your Macintosh or desktop
PC.
3If you are using a hub, we recommend using powered hubs.
My SCSI peripheral has a different connector than the one provided on
the USBConnect 2000 adapter. How can I correct this problem?
Check the Adaptec online store for the correct cable. Adaptec pro-
vides a wide range of SCSI cable solutions.
The USBConnect 2000 adapter size makes it difficult to daisy chain my
SCSI peripherals. How can I correct this problem?
1Try changing the order of your SCSI peripherals to determine if
one has more working space around the connectors.
2Try attaching the USBConnect 2000 adapter to an external SCSI
cable and then attaching the cable to the device. This
prevents the USBConnect 2000 adapter from competing for
space on your SCSI device.

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Troubleshooting
When I change CDs I don’t see the new one in the drive.
Use the View Menu/Refresh option to refresh your screen.
When I power off/on my SCSI device while still connected to
USBConnect 2000 adapter, the system does not detect the
USBConnect 2000 adapter or the SCSI device appears to be missing.
How can I correct this problem?
Try instead one of the following steps:
1Remove and reinsert the USBConnect 2000 adapter from the
USB port.
2Remove the USBConnect 2000 adapter, power off and on the
SCSI devices and reinsert the USBConnect 2000 adapter.
3Remove and the reattach the USBConnect 2000 adapter from
the SCSI device.
4Restart the system with the USBConnect 2000 adapter attached
and the SCSI devices powered on.
5Shut down the system, remove the USBConnect 2000 adapter,
power off and on all SCSI devices and reinsert the USBConnect
2000 adapter.

13
Contacting Adaptec
If you have questions about installing or using your Adaptec prod-
uct, check this User’s Guide first—you will find answers to most of
your questions here. If you need further assistance, please contact
us. We offer the following support and information services:
Electronic Support
Technical information, including product literature, answers to com-
monly asked questions, information on software upgrades and other
topics is available electronically through the following:
■Adaptec World Wide Web (WWW) site at
http://www.adaptec.com
■File Transfer Protocol (FTP) server at
ftp.adaptec.com
■Adaptec USA Bulletin Board Service (BBS); supports up to
28,800 bps (bits per second), 8 data bits, 1 stop bit, no parity.
No product literature is available on the Adaptec BBS.
USA: [phone]
Belgium: (32) 2-352-3454
Germany: (49) 89-45640618
France: (33) 1-3060-9539
UK: (44) 1276-684184
■Interactive Fax System available 24 hours a day, 7 days a week.
USA: 408-957-7150
Europe: (32) 2-352-3869

14
Technical and Product Support
■For technical support and information about many of
Adaptec’s electronic support services, call 800-959-7274 or
408-945-2550, 24 hours a day, 7 days a week.
■To use the Adaptec Interactive Support System, call
800-959-7274 or 408-945-2550, 24 hours a day, 7 days a week.
The system prompts you with questions regarding your prob-
lem and then provides step-by-step troubleshooting
instructions.
■To speak with a product support representative, call
408-934-7274, M–F, 6:00 A.M. to 5:00 P.M., Pacific Time. After
hours, on weekends, and on holidays, product support is also
available for a fee at 800-416-8066.
■To speak with a product support representative in Europe call:
French: (32) 2-352-3460
English: (32) 2-352-3470
German: (32) 2-352-3480
Sales and Ordering Information
■For sales information, call 800-959-7274 or 408-945-2550, M–F,
6:00 A.M. to 5:00 P.M., Pacific Time.
■To order Adaptec software and SCSI cables, call 800-442-7274
or 408-957-7274, M–F, 6:00 A.M. to 5:00 P.M., Pacific Time.
■To request additional documentation for Adaptec products,
call 800-934-2766 or 510-732-3829, M–F, 6:00 A.M. to 5:00 P.M.,
Pacific Time.
■For sales information in Europe call:
France: (33) 1-34-523434
Germany: (49) 89-4564060
UK: (44) 1276-854500