Black Box SC120A-R2, SC121A manual SET Temp Limit

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2 X 2 SCSI MATRIX SWITCH

SET TEMP LIMIT

SET TEMP LIMIT

MAX +40°C

CURRENT TEMP +26.0°C

DISPLAY BUS ACTIVITY

DISPLAY ACTIVITY

A

B

1

2

FRONT PANEL LOCK

FRONT PANEL UNLOCKED

ENTER PASSWORD

TO LOCK 0 0 0 0

DISPLAY VERSION

BLACK BOX

x

SC121A

 

S/N 2 1 0 0 3 0 3

 

H V D V E R 2 1 1 2 1 2 4 L A N

 

In the DISPLAY VERSION panel:

“HVD,” “LVD,” or “SE” at bottom left indicates the current SCSI-bus interface mode.

“x” at top right indicates that the serial ports are locked.

“LAN” at bottom right indicates that the LAN port is active.

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Image 21 Contents
2 Scsi Matrix Switch European Union Declaration of Conformity 2 Scsi Matrix Switch NOM Statement Trademarks Used in this Manual Contents 2 Scsi Matrix Switch Scsi Interface SpecificationsSingle-Ended SE Scsi SC120A-R2 Only Differential DE Scsi SC121A OnlySerial Interface Low-Voltage Differential LVD Scsi SC120A-R2 OnlyLAN Port Agency ApprovalsPhysical About the Scsi Switch FeaturesIntroduction Introduction Technical DescriptionGeneral Hardware Description SC121A block diagram Typical switch installation Switch Placement InstallationPower Equipment Off What’s Included Scsi Interface Cabling RS-232 Serial Port Cabling Ethernet LAN Port Cabling Operator Controls and Indicators AC Power SwitchLCD Display, Keypad, and Indicators LCD Display Control Menus Display Ports SET Temp Limit Scsi Switch Default Configuration Scsi Switch Port ConfigurationConfiguration and Operation Scsi Cable Interface RequirementsInternal Terminator Selection Termination configuration SC120A-R2 termination example Selecting External Terminator Power Selecting Internal Terminator PowerSerial-Port Pinout Signal Description DB9 Pin DB25 PinLAN/Serial-Port Commands Command Cmd Example Command String Response Expanded List of Commands Configuration and Operation Set Temperature Limit Graphical User Interface GUI Ascii Character Reference for Scsi Switch Box SelectionTypical Application Connecting Multiple Scsi SwitchesNetwork Control of Scsi Switch Apconcfg Utility Apconcmd Utility Scsi Basics Scsi Technical InformationScsi Technical Information Scsi Installation TipsScsi Interface Signal Descriptions Signal Name Pin Number Scsi connector assignments for Scsi connector assignments for Differential 16-bit Scsi wide Low-voltage differential LVD 16-bit Scsi wide +BSY +ACK +RST +MSG Signal Name Pin Number HVD LVD Scsi Switch component placement Troubleshooting Calling Black BoxShipping and Packaging Legal Information Copyright 2002. Black Box Corporation. All rights reserved