Black Box SC121A, SC120A-R2 manual Scsi Switch component placement

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CHAPTER 6: SCSI Technical Information

To access jumper options:

Remove the four screws on the bottom of the unit. Then lift off the cover.

Figure 6-1. SCSI Switch component placement.

•Internal termination jumper block: E13, E14, E19, E20 on SC120A-R2 or E15, E16, E21, E22 on SC121A (see Section 5.3).

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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 Single-Ended SE Scsi SC120A-R2 Only SpecificationsScsi Interface Differential DE Scsi SC121A OnlyLAN Port Low-Voltage Differential LVD Scsi SC120A-R2 OnlySerial Interface Agency ApprovalsPhysical Introduction About the Scsi SwitchFeatures Technical Description IntroductionGeneral Hardware Description SC121A block diagram Typical switch installation Power Equipment Off InstallationSwitch Placement What’s IncludedEthernet LAN Port Cabling Scsi Interface CablingRS-232 Serial Port Cabling LCD Display, Keypad, and Indicators Operator Controls and IndicatorsAC Power Switch LCD Display Control Menus Display Ports SET Temp Limit Scsi Switch Port Configuration Scsi Switch Default ConfigurationInternal Terminator Selection Configuration and OperationScsi Cable Interface Requirements Termination configuration SC120A-R2 termination example Selecting Internal Terminator Power Selecting External Terminator PowerSignal Description DB9 Pin DB25 Pin Serial-Port PinoutLAN/Serial-Port Commands Command Cmd Example Command String Response Expanded List of Commands Configuration and Operation Set Temperature Limit Ascii Character Reference for Scsi Switch Box Selection Graphical User Interface GUIConnecting Multiple Scsi Switches Typical ApplicationNetwork Control of Scsi Switch Apconcfg Utility Apconcmd Utility Scsi Technical Information Scsi BasicsScsi Installation Tips Scsi Technical InformationScsi 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 Shipping and Packaging TroubleshootingCalling Black Box Legal Information Copyright 2002. Black Box Corporation. All rights reserved