Adaptec AVA-1505 User manual

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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AVA-1505

AT-to-SCSI Host Adapter

Installation Guide

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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Getting Started

This guide tells you how to install and configure

the AVA™-1505 AT®-to-SCSI host adapter. Installa-

tion instructions are given in Sections 4 through 8.

Board Layout

This figure identifies the major AVA-1505 compo-

nents, and the table describes each component.

Default Settings

The AVA-1505 is designed to operate as shipped in

most AT-class computers. The default settings are

1These values are setby thesoftware (see Section 6,SoftwareInstallation).

2See Section 8,Jumper Block Settings, to learn how to change these settings.

1Pin 1 ismarked by1 on the board.

Location Description

J11Jumper Block

J5150-pin Internal SCSIConnector

J61DB25 External SCSI Connector

F1 Fuse

RN1, RN2, RN31Terminators

U3 AIC-6360 PIO Chip

Parameter Default Setting

SCSIDisconnection1Enabled

SCSIAddress17

SCSIParity1Enabled

Terminators Installed

Terminator Power Supplied by hostadapter

Interrupt Channel 211

AT PortAddress2 340h-35Fh

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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Installing the Host Adapter

Setting Jumpers

If you need to change jumper block settings, do it

now before you replace the chassis cover. See

Section 8, Jumper Block Settings, for details.

In most cases, you do not have to change the default

jumper settings. Here are situations in which you

should change the settings:

■If another Adaptec SCSI host adapter is already

installed in your computer, you may need to

change the interrupt channel of the AVA-1505. If

you change the setting from the default of 11 (pin

pair I11) you may also need to change options in

the software (see Section 6, Software Installation).

■If you change the default port address by install-

ing the extra jumper on pin pair ALT, you may

also need to change options in the software (see

Section 6, Software Installation).

Inserting the Board

WARNING: Turn OFF and disconnect the

power to your computer and attached

devices before you remove the chassis cover.

See your computer’s documentation for

instructions on how to do this.

1Remove the cover of your computer to expose the

AT expansion slots.

2Locate an unused AT expansion slot. AT-type

slots have two edge connectors (one 62-pin and

the other 34-pin) in line with each other.

3Remove the expansion slot cover for this slot.

4Align and insert the host adapter into the AT slot.

Use the expansion slot cover screw to secure the

host adapter to the frame.

Note: Do not replace the chassis cover or

reconnect the power yet!

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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Connecting Peripherals

Setting SCSI IDs

You must assign a different SCSI ID to each device on

the AVA-1505 SCSI bus. See your SCSI peripheral

documentation for directions on how to determine

the ID and change it. The default SCSI ID for

AVA-1505 host adapters is SCSI ID 7.

Connecting Cables

SCSI devices are cabled together in a single, con-

nected series called the SCSI bus. The SCSI bus cables

must run sequentially from one device to the next.

The host adapter is at the end of the SCSI bus if

either the internal or the external SCSI connector is

unused. The host adapter is in the middle of the bus

if internal and external SCSI devices are installed.

Caution: AVA-1505 host adapters support

only single-ended SCSI devices. Differential

SCSI devices may be damaged if connected

to the host adapter. The peripheral docu-

mentation will tell you whether the device

is single-ended or differential.

1Lay out the cables and find the pin-1 element of

each cable and peripheral connector.

On internal cables, pin 1 is usually marked with a

contrasting color on one edge of the ribbon cable,

and a small triangle marks pin 1 on the SCSI con-

nector. External cable connectors can only be

plugged-in one way, so pin-1 orientation is

automatic.

2Attach the SCSI cable(s) to the host adapter and

the peripheral(s), using the internal and/or exter-

nal connector(s).

3Be sure to maintain correct pin-1 orientation

throughout the bus. The AVA-1505 uses a 25-pin

DB25 external connector (Apple compatible), and

a 50-pin flat ribbon-type internal connector.

Terminating the SCSI Bus Cable

The last physical SCSI device on either end of the

SCSI bus must have a set of resistors called termina-

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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tors. Terminators must be removed from, or disabled

on, all other devices on the SCSI bus.

The AVA-1505 and most SCSI peripherals have built-

in terminators that can be enabled or disabled. Termi-

nate only the devices at each end of the SCSI bus.

Terminating the Host Adapter

The three factory-installed terminators on the

AVA-1505 host adapter are located below the internal

SCSI connector, as shown in the diagram on page 1.

You must remove these terminators if you attach

SCSI devices to both the internal and external SCSI

connectors, since the host adapter is then in the

middle of the SCSI bus. Terminators are 8-pin

220/330 ohms resistors.

The table below shows how termination should be

set for the three possible SCSI device and host

adapter configurations.

Terminating SCSI Peripherals

1Check the manufacturer’s documentation to

determine how to enable or disable SCSI bus

termination on your SCSI peripheral device(s).

2Install/enable terminators on SCSI devices at the

ends of the SCSI bus (cable).

3Remove/disable terminators on all other devices

on the SCSI bus.

4Be sure the SCSI cables are connected securely.

They may have been loosened if you changed

jumpers settings on the peripherals.

Reassembling and Starting the System

1Replace the computer chassis cover, following the

instructions in your computer’s documentation.

2Turn all power switches OFF, then reconnect

power cables to your computer.

Devices Connected to Host Adapter AVA-1505 Terminators

Internal devices only(host adapter atend of bus) All three installed

External devices only(host adapter atend ofbus) All three installed

Internal and external devices (hostadapter in the

middle ofthe bus) All three removed

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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3Turn ON the power for the peripheral(s) then for

the computer.

In most cases your computer, host adapter, and SCSI

peripherals are now ready to use.

Booting the Computer

The AVA-1505 does not provide booting capability. If

you want to boot from a SCSI drive installed on the

host adapter, you can install an AVA-1515, which

provides booting capability.

Software Installation

DOS/Windows Platforms

For installing software, insert the software diskette

into a floppy diskette drive, change to the drive letter

of that drive (either Aor B), and type install and press

Enter. Then follow the instructions onscreen or in the

software documentation.

Remember the software and hardware settings for

interrupt channel and port address must match, see

Section 4, Installing the Host Adapter, and Section 8,

Jumper Block Settings.

Note: If you change the interrupt channel or

the port address jumper setting after install-

ing the software, you may need to reinstall

or reconfigure the software. See the software

documentation.

Troubleshooting Checklist

If you have a problem during installation, check

these items first:

■Are all SCSI peripheral devices powered? Did

you power them before system boot?

■Are all SCSI bus cables and power cables properly

connected?

■Do the host adapter and all devices on the SCSI

bus have unique SCSI IDs?

■Are all devices on the SCSI bus terminated prop-

erly? (See Section 5, Connecting Peripherals.)

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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■Do your SCSI devices support parity checking?

■Is the fuse (F1) discolored?

■If your system has multiple host adapters, did

you assign each host adapter a unique interrupt

channel and port address?

If you need replacement components such as a fuse,

jumper shunt, or terminator, see your dealer.

Jumper Block Settings

The AVA-1505 jumper block settings are silk-

screened on the board and are used to configure

user-selectable options. In the diagram on page 1, the

black bar covering both pins represents an installed

jumper. This table below shows all the possible set-

tings for the two jumpers on Jumper block J1.

Default settings are marked with an asterisk (*).

Adaptec Customer Support

■For information on upgrades, utility programs, and technical

advice, call Adaptec’s Electronic Bulletin Board Service

24 hours a day at 408-945-7727. 1200, 2400, 9600, or 14400 baud,

using 8 data bits, 1 stop bit, no parity.

■For the latest online information about Adaptec products and

services, call the Interactive Fax Service 23 hours a day at

408-957-7150.

■For technical assistance, call Adaptec’s Technical Support Hot

Line at 800-959-SCSI (7274), or 408-945-2550.

M–Th: 6:00a.m.–5:00p.m., F: 6:00a.m.–3:00p.m., Pacific Time.

■To order Adaptec software, call 800-442-SCSI (7274) or

818-365-6264. M–F: 5:00a.m.–6:00p.m., Pacific Time.

■To request literature on Adaptec products, call 800-934-2766.

M–F: 5:00a.m.–6:00p.m., Pacific Time.

1Place jumper on only one interrupt channel pin pair.

2An extrajumper is provided if you wantto change the port address.

3Notrecommended with Windows3.x.

Pin Pair1Interrupt Channel ALT2PIO Port Address

I09 093On 140h-15Fh

I10 10 Off 340h-35Fh*

I11 11* On =Jumper

Off = No Jumper

I12 12

Document Title

Part Number: 510533-00, Rev. A

Print Spec Number: 492410-00

Current Date: 1/24/94 ECN Date: 2/1/94

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FCC Compliance Statement

NOTE: This equipment has been tested and found to comply with the limits

for a Class B digital device, pursuant to Part 15 of the FCC rules. These lim-

its are designed to provide reasonable protection against harmful interfer-

ence in residential installations. This equipment generates, uses, and can

radiate radio frequency energy, and if not installed and used inaccordance

with the instructions, may cause harmful interference to radio communica-

tions. However, there is no guarantee that interference will not occur in a

particular installation.

If this equipment does cause interference to radio or television equipment

reception, which can be determined by turning the equipment off and on,

the user is encouraged to try to correct the interference by one or more of the

following measures:

• Reorient or relocate the receiving antenna

• Move the equipment away from the receiver

• Plug the equipment into an outlet on a circuit different from that to

which the receiver is powered

• If necessary, the user should consult the dealer or an experienced radio/

television technician for additional suggestions

CAUTION: Only equipment certified to comply with Class B (computer

input/output devices, terminals, printers, etc.) should be attached to this

equipment, and must have shielded interface cables.

Finally, any change or modifications to the equipment by the user not

expressly approved by the grantee or manufacturer could void the user's

authority to operate such equipment.

Each AVA-1505 is equipped with an FCC compliance label which shows

only the FCC Identification number. The full text of the associated label

follows:

This device complies with part 15 of the FCC rules. Operation is subject to

the following two conditions: (1) this devicemay not cause harmful interfer-

ence and (2) this device must accept any interference received, including

interference that may cause undesired operation.

Adaptec, Inc.

691 South Milpitas Blvd.

Milpitas, California 95035

the Adaptec logo are registered trademarks, and AVA is a trade-

mark of Adaptec, Inc. AT is a registered trademark of Interna-

tional Business Machines Corporation.

Printed in Singapore

Stock No.: 510533-00, Rev. A CV 1/94

Information subject to change without notice.

This manual suits for next models

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