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Items you should have to test SCSI terminators

Cirris Touch 1  Cable Analyzer.  1000 volt unit uses software version 2.51 or later.  1500 volt unit uses 
software version 3.01 or later.

 Scripting option installed on your Touch 1.

KSTT-68 SCSI Terminator Adapter Kit (contains adapter with attached cable, floppy disk with soft-
ware, 9-volt DC power supply (RPWR-50).

SCSI Terminator Script Disk.

The SCSI Terminator Test Adapter

This adapter provides the needed operating voltage and connections to test SCSI terminators.  You install it on the 
Touch 1 in the J1-J3 position.

Connect the cable attached to the adapter (it has a 15-pin connector on the end) to the Touch 1’s digital I/O port (see 
your Touch 1 Quick Start Manual, or Touch 1 User’s Guide for details on where the port is located). It’s best to route 
the cable around the back of the Touch 1 to do this.

Next, you must connect power to the SCSI Terminator Adapter.  Plug the DC power supply provided into a standard 
electrical outlet.  Plug the power supply cable into the jack receptacle on the SCSI Terminator Adapter.  

The SCSI Script Disk

On the SCSI Script Disk are several files which are used to generate the test files you’ll need to test SCSI terminators.   
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 Adapter in position J1/J3 on the Touch 1.  Do not install it in any other scanner 
position.  The adapter’s cable should be connected to the Touch 1’s Digital I/O port.  The power supply should be 
plugged into a standard 120-volt wall outlet, and the adapter itself. 

 Important! 

 Only one SCSI Adapter should be 

installed during a test!

If you are planning to test an entire cable assembly with the terminator, you’ll need the standard adapters that match 
the connectors on your cable assembly.  These adapters don’t have to be the SCSI Test Adapter style.  You may install 
as many standard adapters in the Touch 1, as you need to test your cable.  Because the length of the cable(s), and the 
positioning of the connectors vary, you may need to provide a test fixture to connect between the terminator cable and 
the test adapter connection.

What you should know about the SCSI terminator you intend to test

Before you attempt to create a set of test files for testing a SCSI terminator, you must know one or more of these 
things:

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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