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Technical Note: Testing SCSI Terminators Using

the Cirris Touch 1 Cable Analyzer

Version 2.1

October, 1999

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Summary of Contents for Touch 1

Page 1: ...1 Technical Note Testing SCSI Terminators Using the Cirris Touch 1 Cable Analyzer Version 2 1 October 1999 ...

Page 2: ...te Testing SCSI Terminators Using the Cirris Touch 1 Cable Analyzer Version 2 1 October 1999 Copyright 1999 by Cirris Systems Corporation 1991 Parkway Boulevard Salt Lake City Utah 84119 2026 United States of America ...

Page 3: ...ors There are files on the floppy disk that the Touch 1 cannot copy Copying the files on this disk to the hard drive will cause operational errors Only the wirelist will be copied Accessing the other files will produce errors We recom mend that you keep the files together on the floppy disk we ve provided What you need to test a SCSI terminator and cable You must install the SCSI Terminator Adapte...

Page 4: ...t section for more details General SCSI Menu Description Using the test files generated by the SCSIMENU script and wirelist you can test several different types of active SCSI terminators The selections you make in a number of different screens will allow you to build the test files eas ily The test files you create will automatically be placed on your Touch 1 s internal hard disk drive Once you v...

Page 5: ...nator or the part number that s been selected to create the test file Remember if you choose to rename the file s to reflect your customer s part number be sure to keep track of which script you ll need the wirelist and the type of terminator it was created for Once you ve noted the infor mation you ll need touch OK SEACT Single ended Active SE ANEG Single ended Active with Active Negation LVDSE S...

Page 6: ...st cases the file will be ready to load and run If the cable length changes or your requirements differ from the default setup in this menu you ll have to modify the wirelist to meet your needs Other tester settings required Now that the adapter the wirelists and the scripts are installed on your Touch 1 you should enter the Digital Input Output Digital I O portion of the Touch 1 software touch Di...

Page 7: ...d in the wire list they are verified After the terminator has passed the wirelist test the script test begins The terminator is powered up and the output voltages for each mode of operation are verified The resistance provided by the termination IC s is measured In each test the measurements are done within the following tolerances Table 1 Tolerances for SCSI Terminator Tests Test Accuracy 1000 Vo...

Page 8: ...e along with the SCSI terminator simply add the connections from J1 the default connector in the wirelist to the connectors where you ll make connections interface cables to the scanner expansion boxes on your Touch 1 If the SCSI terminator you re testing does not have all the pins listed in the ground pin net you may need to edit the wirelist file to remove the pins that are not there One of the ...

Page 9: ...ppens to the original files If you run the SCSI menu a second time to create a test file the existing file is overwritten The system does not check to see if the file already exists Any changes you ve made to the original files will be lost ...

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