Black Box SC120A-R2, SC121A manual Expanded List of Commands

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2 X 2 SCSI MATRIX SWITCH

EXPANDED LIST OF COMMANDS

a. Select SCSI Port Matrix:

example command: <cr>//A1B2K<cr>

report: none

NOTE

K - Connects specified ports, but also breaks former connections and maintains proper termination as per SCSI rules.

N - Connects specified ports without regard for former connections or termination.

F - Disconnects the specified ports.

b. Report SCSI Port Matrix Assignment Status example command: <cr>//S<cr> example report: //A1B2K

c. Select SCSI Terminator Matrix

example command: <cr>//<AB12k><cr>

report: none

d. Report SCSI Terminator Status example command: <cr>//s<cr> example report: //AB12k

e. Lock Front Panel

example command: <cr>//L<cr>

report: none

f. Unlock Front Panel

example command: <cr>//U<cr>

report: none

g. Report Model, Serial Number, and Date of Manufacture: example command: <cr>//?<cr>

example report: //SC121A 21121150 10-15-02 SC121A = model number

21121150 = serial number

10-15-02 = date of manufacture (mm-dd-yy)

h. Report Alarm Status:

example command: <cr>//a<cr>

report format: //axy (x and y = ASCII 1 or 0)

x:0 = OK, 1= Overtemperature

y:0 = OK, 1= Power-supply failure

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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 Differential DE Scsi SC121A Only SpecificationsScsi Interface Single-Ended SE Scsi SC120A-R2 OnlyAgency Approvals Low-Voltage Differential LVD Scsi SC120A-R2 OnlySerial Interface LAN PortPhysical Features About the Scsi SwitchIntroduction Introduction Technical DescriptionGeneral Hardware Description SC121A block diagram Typical switch installation What’s Included InstallationSwitch Placement Power Equipment OffRS-232 Serial Port Cabling Scsi Interface CablingEthernet LAN Port Cabling AC Power Switch Operator Controls and IndicatorsLCD Display, Keypad, and Indicators LCD Display Control Menus Display Ports SET Temp Limit Scsi Switch Default Configuration Scsi Switch Port ConfigurationScsi Cable Interface Requirements Configuration and OperationInternal 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 Calling Black Box TroubleshootingShipping and Packaging Legal Information Copyright 2002. Black Box Corporation. All rights reserved

SC121A, SC120A-R2 specifications

The Black Box SC120A-R2 and SC121A represent the cutting edge of industrial networking devices designed for robust performance and versatility in various environments. These devices are tailored for applications that require reliable data transmission, making them essential in modern automation and control systems.

One of the standout features of the Black Box SC120A-R2 and SC121A is their advanced serial-to-Ethernet conversion capability. This functionality allows users to connect legacy serial devices to Ethernet networks seamlessly. With support for multiple protocols, including TCP/IP and UDP, these converters ensure smooth communication between devices, regardless of their original architecture.

Both models are engineered to withstand harsh industrial conditions. They feature a rugged construction that includes high-quality enclosures designed for durability and protection against dust, moisture, and extreme temperatures. This resilience makes them ideal for use in factories, transportation, and other challenging environments.

In terms of connectivity, the SC120A-R2 and SC121A come equipped with multiple serial ports, enabling simultaneous connections to various devices. The auto-sensing capability of these ports simplifies installation and configuration, making them user-friendly for both technical and non-technical personnel. Users can easily manage and monitor connections through a straightforward web-based interface.

Additionally, these devices incorporate advanced security features, including encryption and authentication protocols, ensuring that data transmission remains secure from potential threats. This focus on security is crucial for industries where sensitive data is transmitted, enhancing overall system integrity.

The SC120A-R2 and SC121A also support a range of network configurations, allowing for flexibility in deployment. Their compatibility with various operating systems ensures that users can integrate them into existing systems without significant modifications.

Moreover, these models offer flexibility in power options, supporting both PoE (Power over Ethernet) and traditional power supply methods. This versatility enables easy installation without the need for additional power infrastructure.

Overall, the Black Box SC120A-R2 and SC121A are sophisticated networking devices that combine advanced technology with rugged design. Their ability to bridge the gap between legacy serial interfaces and modern Ethernet networks, coupled with robust features and security measures, makes them a valuable asset for numerous industrial applications. Whether in a manufacturing plant or a transportation hub, these devices provide reliable, efficient, and secure communication solutions that meet the demands of today's connected world.
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