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1000 Park Drive     •     Lawrence, PA 15055-1018      •     724-746-5500     •     Fax 724-746-0746

© Copyright 1996. Black Box Corporation. All rights reserved.

Summary of Contents for SCSI Switch II

Page 1: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1996 Black Box Corporation All rights reserved...

Page 2: ...E technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail inf...

Page 3: ...SCSI SWITCH II TRADEMARKS USED IN THIS MANUAL UL is a registered trademark of Underwriters Laboratories Incorporated All applied for and registered trademarks are the property of their respective owne...

Page 4: ...erated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measure...

Page 5: ...ato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las in...

Page 6: ...r una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado deb...

Page 7: ...2 3 Caring for the Switch 10 3 Installation 11 3 1 Preinstallation Guidelines 11 3 2 Installing the Switch 11 4 Operation 12 5 Troubleshooting 13 5 1 Common Problems 13 5 2 Contacting Your Supplier 15...

Page 8: ...ection Port A B or C Indicators 1 Power 3 Branch connected LEDs Connectors 1 P5 2 1 mm female power jack 4 high density 68 pin SCSI 3 Enclosure ABS plastic Operating Temperature 32 to 158 F 0 to 70 C...

Page 9: ...ures that data transfer will not be interrupted Its compact size allows the SCSI Switch II to be set up for many different configurations 2 1 The Complete Package You should have received these items...

Page 10: ...is no difference between the main bus and the three branches except for the way they are routed through the Switch Figure 2 1 Routing of Main Bus and Thre Branch Buses The SCSI Switch II supports the...

Page 11: ...or extreme electrical fields Also though the Switch can withstand a lot of heat keeping it away from high temperatures will extend its life When you install the SCSI Switch II as with all computer dev...

Page 12: ...u attach a SCSI adapter cable to the Switch you must make sure that Pin 1 on the cable s connector goes to Pin 1 on the Switch s connector 3 2 Installing the Switch To set up the SCSI Switch II on a d...

Page 13: ...The LED for the last branch connected will light up If it blinks rapidly it s transmitting data If it stays constantly lit there is no data currently transmitting To switch branches push the button l...

Page 14: ...or 12 volts DC 1 amp maximum with the positive terminal on the inside of the connector Also check whether the power supply is connected to a live power outlet Problem 2 Branch indicator LED flashes c...

Page 15: ...Switch or you ve hit a SCSI bug If the communication still fails try these measures Check power to all SCSI devices Check the ID codes of all devices throughout the system and correct any conflicts O...

Page 16: ...re and duration of the problem when the problem occurs the components involved in the problem and their SCSI ID numbers and any particular application that when used appears to create the problem or m...

Page 17: ...ngle ended SCSI The first and last devices on a SCSI bus and only those devices should have terminators installed Thus a SCSI bus should have two terminators one at each end The SCSI Switch II acts as...

Page 18: ...normal termination arrangement with the SCSI Switch II the wedge shapes represent terminators Figure 6 1 Normal Termaination An exception to the illustration above is the case where a branch bus may h...

Page 19: ...tion normally found at the end of the main bus with terminators the top of each branch no farther than another few centimeters another two or three inches from the SCSI Switch II Figure 6 2 Alternate...

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