Black Box SC120A-R2 User Manual download pdf (Page 11)

2 X 2 SCSI MATRIX SWITCH

2. Introduction

2.1 About the SCSI Switch

The 2 x 2 SCSI Matrix Switch is a high-performance electronic crosspoint switch

for use with the SCSI (Small Computer System Interface) bus. This product

enables two independent SCSI buses to be selected and electrically connected in

any combination via internal electronic switching circuits. The 2 x 2 SCSI Matrix

Switch eliminates the need to swap and reconfigure SCSI cables and bus

terminators when alternate system configurations are required.

In conjunction with the 2 x 2 SCSI Switch dual RS-232 serial interface, a

Graphical User Interface (GUI) allows the system administrator to remotely

operate and control SCSI-port configuration and termination, report SCSI-bus

activity, gather performance statistics, and set internal temperature points for

alarm notification. Standard DOS or modem software can also be used to control

the switch using simple ASCII control commands.

Up to 32 SCSI Switches can be connected together and controlled by one serial

port.

2.2 Features

• Ultra2, Ultra, and Fast SCSI compatible. SC120A-R2 is also Ultra160 SCSI

(a.k.a. “Ultra3 SCSI”) compatible.

• 80-MBps or (SC120A-R2 only) 160-MBps throughput (LVD).

• Easy-to-use LCD panel.

• Daisychain up to 32 switches.

• Share up to 32 SCSI peripherals.

• SC121A supports differential SCSI. SC120A-R2 supports single-ended or LVD

SCSI.

• Transparent electronic switching.

• LAN port for TCP/IP-based network control, RS-232 ports for serial control.

• Does not require SCSI-bus ID.

• User-installable.

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Black Box SC120A-R2 User Manual Page 11