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EXPRESSPCI-DC

ATTO TECHNOLOGY, INC.

EXPRESSPCI-DC

Card Type

Hard drive controller card

Processor

RISC

Hard Drives supported

Up to 30 Ultra/Wide SCSI devices

Floppy drives supported

None

Data Bus

32-bit PCI

Card Size

Half-length, full-height card

RAID levels supported

0

CONNECTIONS

Function

Location

Function

Location

68-pin SCSI channel 0 connector - external

J1

68-pin SCSI channel 1 connector - internal

J4

68-pin SCSI channel 1 connector - external

J2

4-pin connector - drive active LED

JP1

68-pin SCSI channel 0 connector - internal

J3

 

 

TERMINATION LEDS

LED

Color

Status

Condition

LED1

Unidentified

On

Low order byte on SCSI channel terminated

LED1

Unidentified

Off

Low order byte not terminated

LED2

Unidentified

On

High-order byte on SCSI channel terminated

LED2

Unidentified

Off

High order byte not terminated

Note: The ExpressPCI-DC automatically configures its own termination and provides feed back via two LEDs located on the top edge of the card. Exceptions to automatic configuration are listed in the Miscellaneous Technical Notes table.

MISCELLANEOUS TECHNICAL NOTES

Termination must be manually configured under two conditions. The ExpressPCI-DC will not automatically configure termination when narrow (8-bit) devices are attached to the internal connector and wide (16-bit) devices are attached to the external connector, or vice-versa. In these cases, the on-board terminators must be set to terminate high-order byte (the ExpressPCI-DC must lies at the end of the high-order bus). Refer to the ExpressPro-Tools Bus Configuration Utilities section in the ExpressPro-Tools Userís Manual for appropriate settings. Active termination is strongly recommended.