ASUS LS99 User Manual

Introduction

The ASUS LS99 LAN/SCSI card can only be installed on a motherboard with an ASUS proprietary expansion slot. See 2.3 Installing the ASUS LAN/SCSI card for location of this slot.

The ASUS LS99 LAN/SCSI card enables you to connect up to 30 SCSI devices— such as very large arrays of high-performance HDDs, external storage subsystems, clustered configurations, Ultra160 hard disk drives, scanners, and CD-ROM drives. There is also an optional integrated 3Com 3C920 Fast Ethernet controller for connecting your PC to a network.

Ultra160 is a new generation of SCSI technology that increases SCSI performance from 80 MBytes/sec to 160 MBytes/sec. In addition to providing much greater performance, Ultra160 SCSI enables a maximum allowable cable length of 12 meters for optimal connectivity and flexibility.

1. Introduction

1.1 Package Contents

Check that your package is complete. If you discover damaged or missing items, contact your retailer.

(1) ASUS LAN/SCSI card (1) 68-pin internal LVD SCSI cable with terminator (1) 50-pin internal SE narrow SCSI cable

When only one Ultra2 or Ultra160 SCSI device is connected, the cable length can be up to 25 meters (82 feet).

Chapter 1 Introduction 1

1.2 Product Features

1. Introduction

The ASUS LS99 LAN/SCSI card has two independent SCSI channels, each with a maximum throughput of 160 MBytes/sec. SCSI Channel A has two internal connectors (CHA-WIDE and SCSI-50). SCSI Channel B has one internal connector (CHB-WIDE) and one external connector (CHBEXTWIDE).

1.2.1 PCI Interface

• Full 32-bit (33 MHz) DMA bus master

• Zero wait-state bus master data bursts

• PCI 5V bus support

CHBEXTWIDE

RJ45

Connector

External Ultra160

SCSI Connector

(Channel B)

Internal Ultra160 SCSI Connector

(Channel B)

CHB-WIDE

3Com

LAN

Controller

ASUSCONNECT

SCSI_EN LAN_EN

Adaptec

AIC-7899G

SCSI

Controller

Internal Ultra160 SCSI Connector

(Channel A)

CHA-WIDE

SCSI-50

Internal Narrow SCSI Connector

SCSILED

Latch

(Channel A)

LED2 LED1

1.2.2 SCSI Interface

• Two separate SCSI channels

• 16-bit SE/LVD

• One 68-pin external high-density SCSI interface for channel B

• One 68-pin internal high-density SCSI interface for each channel A & B

• One 50-pin fast-SCSI connector for channel A

• Fast, Ultra, and Ultra2 data transfer capability

• SCSI Plug and Play

• SCSI activity LED for each channel

1.2.3 Network Interface

• 3Com EtherLink 10/100 LAN controller

• 32-bit PCI host interface

• One RJ45 LAN connector

• Remote system alert and network keepalive support

1.2.4 LAN/SCSI card Characteristics

• Dimensions: Approximately 6.0 x 4.0 inches (15cm x 10cm)

• ASUS proprietary 32-bit PCI card edge connector

2 Chapter 1 Introduction

Hardware Installation

Discharge any static electricity build-up before handling your LAN/SCSI card by touching a grounded metal object (like the exposed metal parts on the back of your computer). Remove the ASUS LS99 Dual Channel LAN/SCSI card from the packing and check that it is not damaged.

CAUTION: Static charges on your body can damage electronic components. Handle plug-in boards by the edge; do not touch board components or gold connector contacts. The use of a static ground strap is recommended.

2.1 ASUS LS99 LAN/SCSI card Layout

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External Ultra160

SCSI Connector

CHBEXTWIDE

RJ45

Connector

(Channel B)

Internal Ultra160 SCSI Connector

(Channel B)

CHB-WIDE

3Com

LAN

Controller

Adaptec

AIC-7899G

SCSI

Controller

SCSI_EN LAN_EN

ASUSCONNECT

Internal Ultra160 SCSI Connector

(Channel A)

CHA-WIDE

SCSI-50

SCSILED

Internal Narrow

SCSI Connector

(Channel A)

LED2 LED1

Latch

NOTE: Grayed components are available only on certain models at the time of purchase.

Chapter 2 Hardware Installation 3

2.2 LAN/SCSI card Settings

1) SCSI Controller Setting (SCSI_EN)

This jumper allows you to enable/disable the SCSI controller function. The default setting is Enable.

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Enable

123

SCSI_EN

LAN_EN

Disable

123

SCSI_EN

LAN_EN

SCSI Controller Setting

2) LAN Controller Setting (LAN_EN) (only on model with LAN controller)

This jumper allows you to enable/disable the LAN controller function. The default setting is Enable.

123

Enable

SCSI_EN

LAN_EN

Disable

SCSI_EN

LAN_EN

123

LAN Controller Setting

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2.3 Installing the ASUS LAN/SCSI card

1. Locate the ASUS proprietary expansion slot.

2. Remove the expansion slot cover on the

PCI Expansion Slot

back of the computer aligned with the ASUS proprietary expansion slot. Save

ASUS Proprietary Expansion Slot

the slot cover screw.

3. Carefully insert the ASUSCONNECT edge connection of the ASUS LS99 LAN/SCSI card into this slot. Make sure the edge connector is

CHBEXTWIDE

RJ45

Connector

External Ultra160 SCSI Connector

(Channel B)

CHB-WIDE

3Com

LAN

Controller

JP3 JP4

SCSI_EN LAN_EN

Adaptec

AIC-7899G

SCSI

Controller

CHA-WIDE

SCSI-50

SCSILED

Internal Narrow SCSI Connector

(Channel A)

LED2 LED1

properly engaged before pressing the card into

ASUSCONNECT

place.

4. Press down firmly until the latch clicks into place. The latch on the LAN/SCSI card should secure the card into place.

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Latch

5. The bracket around the CHBEXTWIDE connector should fit where you removed the expansion slot cover. Secure it with the slot cover screw before making the internal and external SCSI bus connections.

2.4 Removing the ASUS LAN/SCSI card

Release the latch by inserting a rigid tip between the latch and the connector and pushing the latch outward away from the connector.

To release latch

Chapter 2 Hardware Installation 5

2.5 Setting Up SCSI Devices

There are several things to do before you connect your SCSI devices to the ASUS LS99 LAN/SCSI card:

• Check the SCSI IDs

• Set the termination

• Connect the power cables Since setup can vary from device to device, always refer to the device’s documentation

2. HW Installattion

for specific instructions. Below are some guidelines for setting SCSI IDs and termination on your devices.

Refer to the Appendix for more information on these topics.

2.5.1 Check the SCSI IDs

The ASUS LS99 LAN/SCSI card and each device you connect to it must have a unique SCSI ID number ranging from 0 to 15 on each channel. The peripheral device SCSI IDs are usually set with jumpers or with a switch on the peripheral. Refer to the peripheral manufacturer’s instructions and to the user’s manual for your computer to determine the ID of each device and how to change it. No two devices on the same SCSI channel can have the same SCSI ID.

The ASUS LS99 LAN/SCSI card is preset to ID 7 for each channel and should not be changed. If you boot from a SCSI hard disk, make sure the hard disk SCSI ID is set to 0. (Most SCSI hard disks are preset to SCSI ID 0 at the factory .) The SCSI IDs for internal devices are usually set with jumpers; SCSI IDs for external devices are usually set with a switch on the back of the device.

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Determine the SCSI ID of each device on the SCSI bus. Note any duplications. Make any necessary changes to the SCSI IDs and record the IDs for future reference. The following table is provided as a place to keep this record.

2.5.2 SCSI ID Record

SCSI ID SCSI Device Channel A SCSI Device Channel B

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

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2.5.3 Terminate the Ends

To ensure reliable communication on the SCSI bus, the device at the end of each cable, or the end of the cable itself, must have a terminator installed (or enabled). T erminators must be removed, or termination must be disabled, on devices between the ends of each cable.

NOTE: When connecting Ultra160 or Ultra2 SCSI devices, the SCSI bus must be terminated either on the end of the cable (with a permanent terminator) or with a separate terminating connector. Ultra SCSI and earlier single-ended devices can terminate the bus directly from the device. If you use an Ultra SCSI terminator on an LVD Ultra160 and Ultra2 SCSI bus you will force the bus to Single-ended mode, limiting the speed and cable distance. For this reason be sure that you have the necessary Ultra160 or Ultra2 cable or terminator before installing the Ultra160 SCSI devices.

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2.6 Connecting Devices

Y ou can connect a total of 30 SCSI devices to the ASUS LS99 LAN/SCSI card, with up to 15 devices on each SCSI channel. Before connecting devices, be sure to review

2.5 Setting Up SCSI Devices.

2.6.1 Connecting Internal Ultra160 and Ultra2 Devices

A special 68-pin LVD cable is provided to connect internal Ultra160 or Ultra2 SCSI

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devices. If your cables are not marked, you can identify most LVD cables as having twisted pairs of the flat ribbon cable between the device connectors.

The ASUS LS99 LAN/SCSI card has two separate Ultra160 SCSI channels, as shown in 2.1 ASUS LS99 LAN/SCSI card Layout. Each channel has an internal LVD/SE connector to which you can connect internal SCSI devices. Follow these steps to connect your internal Ultra160 and Ultra2 devices.

NOTE: We recommend that Ultra160 and Ultra2 SCSI devices are kept on a separate SCSI channel from Ultra SCSI devices. This allows the newer Ultra160 and Ultra2 SCSI devices to transfer data at their maximum speed.

Internal Ultra160 and Ultra2 SCSI Connectors

CHA-WIDE

Internal Ultra160

CHB-WIDE

Internal Ultra160

1. Locate the provided 68-pin internal LVD SCSI cable, which has the twisted wires.

2. Plug the non-terminated end of the cable(s) to the internal L VD/SE connector(s). Pin-1 must match on all connections.

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3. Plug additional internal Ultra160 and Ultra2 SCSI devices to the other cable connectors, starting with the connector at the terminated end of the cable. Make sure to match pin-1 on all connections.

NOTE: Internal Ultra160 and Ultra2 SCSI devices come from the factory with termination disabled and cannot be changed. Proper termination is provided by the terminator at the end of the LVD SCSI cable.

4. Connect a power cable from your computer’s internal power supply to each internal SCSI device.

5. Most PC cabinets are designed with a front panel LED, which may already be connected to an existing IDE controller. You may connect this LED cable to your SCSI host adapter . This connection causes the front panel LED to indicate activity on the SCSI bus.

2.6.2 Connecting Internal Wide SCSI Devices

You can connect Wide SCSI devices to the internal LVD/SE connectors. If you do this, we recommend that you connect them to the SCSI channel A L VD/SE connector and that you connect all Ultra160 and Ultra2 devices to the SCSI Channel B connector . Follow these steps to connect Wide SCSI devices:

2. HW Installation

1. Connect one end of a 68-pin internal W ide SCSI cable to the Channel A internal 68-pin connector on the ASUS LS99 LAN/SCSI card.

2. Connect the other end of the cable to a terminated Ultra/Fast W ide SCSI device. Pin-1 must match on all connections.

3. If you have other Ultra/Fast Wide SCSI devices, attach them to the connectors between the two ends of the cable. Be sure these other devices are unterminated.

4. Connect a power cable from your computer’s internal power supply to each internal SCSI device.

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2.6.3 Connecting Ultra/Fast Narrow SCSI Devices

If you have internal Ultra/Fast Narrow SCSI devices with standard 50-pin connectors, you can connect them to the 50-pin internal SE Narrow SCSI connector. Follow these steps to connect the devices:

1. Locate the provided 50-pin internal Ultra/Fast Narrow SCSI cable.

2. Connect one end of the cable to the 50-pin internal SE Narrow SCSI connector .

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Internal Narrow SCSI Connector

3. Connect the other end of the cable to a terminated Ultra/Fast Narrow SCSI device. Pin-1 must match on all connections.

4. If you have other Ultra/Fast Narrow SCSI devices, attach them to the connectors between the two ends of the cable. Be sure these other devices are unterminated.

5. Connect a power cable from your computer’s internal power supply to each internal SCSI device.

2.6.4 Connecting External SCSI Devices

You can connect external Ultra160 and Ultra2 SCSI devices to the 68-pin external L VD/SE SCSI connector . The external devices will require a 68-pin VHDCI external LVD SCSI cable.

SCSI-50

Internal Narrow

NOTE: We recommend that you connect only Ultra160 and Ultra2 SCSI devices to the external SCSI connectors in order to achieve the maximum data transfer rate.

External SCSI Connector

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Follow these steps to connect external SCSI devices:

1. Connect one end of the external SCSI cable to the external Ultra160 connector .

2. Connect the other end of the cable to a SCSI connector on the back of an external device. Pin-1 must match on all connections. If you are installing only one external device, terminate the device and skip to step 4.

3. Connect the other external SCSI devices by linking each device to the previous one. Terminate only the device at the end of the chain.

4. Connect power cables to all external SCSI devices and to the computer.

2.6.5 More Information About Termination

The last SCSI device on the end of each SCSI bus cable must be terminated, and termination must be disabled for all other devices in the middle of the cables. Ultra160 and Ultra2 SCSI devices are automatically unterminated, but Ultra SCSI and Fast/ Wide SCSI devices do have termination that you must check. For more information, refer to the Appendix.

If you are using external Ultra2 or Ultra160 devices, be sure to use an L VD terminator to terminate the last device in the chain. If you use a single-ended, active terminator (sometimes called an Ultra terminator) the SCSI devices will not operate at their maximum speed.

2. HW Installation

2.6.6 Connecting the LED Connector

Most computers have an LED disk activity light on the front panel of the system case. If you choose to disconnect the cable from the LED connector on the motherboard and connect it to the LED connector on the LAN/SCSI card as shown in the diagram below , the LED on the front panel of the computer will light whenever there is activity on the SCSI bus.

NOTE: If you connect the LED cable to the LAN/SCSI card,the LED disk activity light will no longer indicate disk activity on the nonSCSI disk drives.

LED2

GND

LED

GND

(Channel B)

LED1

SCSI Activity LED Connector

(Channel A)

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