B Specifications

Table B-1 A7173A Adapter Features and Specifications

Dimensions (excluding bracket)

6.6 X 4.0 inches (standard bracket)

 

(167.6 X 106.7 mm)

 

 

Bracket

ISA / EISA

 

 

Power Required

15 W

 

 

Operating Temperature Range

0 to 55 degrees C (dry bulb)

 

 

Storage and Shipping Temp. Range

-40 to 105 degrees C (dry bulb)

 

 

Operating, Storage, and Shipping Relative

5% to 90% non-condensing

Humidity

 

 

 

Maximum Dew Point Temperature

32 degrees C

 

 

Processor Type

LSI53C1030

 

 

Data Transfer Rate

Maximum 320 Mbytes/s per channel (Ultra320), as well as Ultra160,

 

Ultra2, Ultra, and Fast

 

Synchronous offsets up to 62

 

 

PCI Interface

— Full 64-bit Direct Memory Access (DMA) bus master

 

— Zero wait-state bus master data bursts

 

— PCI-X Universal 3.3 V / 5 V bus support (133 MHz, 64 bit edge

 

connector adapter)

 

— Compliance with PCI Local Bus Specification, Revision 2.2 and

 

PCI-X Addendum Revision 1.0a.

 

 

PCI-X Bus Connector Type

133 MHz, 64 bit edge connector

 

(universal 3.3 V / 5 V bus support)

 

 

SCSI Standard Compliance

The A7173A adapter and its driver conform to the ANSI T10 SCSI

 

Parallel Interface-4 (SPI-4) standard

 

 

SCSI Connections

— Two 68-pin Very High Density Cable Interconnects (VHDCI)

 

for the two external channels

 

— Two 68-pin High Density (HD) connectors for the two internal

 

channels

 

 

SCSI Channels

Two independent Ultra320 SCSI channels: synchronous or

 

asynchronous, 16-bit (Wide) Single Ended (SE) or 16-bit (Wide)

 

Low Voltage Differential (LVD)

 

 

Maximum SCSI Devices Connected

15 SCSI devices per channel, in addition to the A7173A adapter

 

 

Maximum SCSI Cable Length

— Maximum LVD cable length of 12 meters with multiple SCSI

 

devices (25 meters point-to-point)

 

— Maximum SE cable length of 6 meters with a maximum of 8

 

SCSI devices

 

 

SCSI Bus Termination

— LVD/SE: On-board termination, enabled or disabled with a

 

hardware jumper.

 

— SCSI termination power source with auto-resetting circuit

 

breaker (TERMPWR)

 

 

Signaling

16-bit SE or LVD interfaces

 

 

Flash ROM

Yes, for boot code and firmware

 

 

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