Page 48


www.us - tech.com


July 2026


Reducing Human Error When Mapping Custom Cable Test Fixtures


product under test does not match any standard connector interface. A de- fense avionics harness may use a 23- pin circular MIL-spec connector. An industrial PLC cable may be terminat- ed in a proprietary housing. A medical device assembly may include several different connector types on a single harness. At that point, a custom test fix-


E


ture becomes a necessity. The key question is how to map that fixture to the test system accurately, efficiently and with as little opportunity for hu- man error as possible.


When Standard is Not Enough Automated cable and harness


testers can be configured with plug-in connector boards for fast setup and testing of standard cables. Stock fix- tures are available for common inter- faces such as DB9, DB25, RJ45, USB, DVI and HD15. These boards serve many gener- al-purpose testing needs well.


Custom interface fixtures and test cables allow


engineers to connect nonstandard cable and harness assemblies to automated test systems.


engineers encounter in production. When the cable or harness under test includes nonstan- dard connectors, the fixture strategy must


very electronics manufacturer testing cables and wire harnesses eventually encounters the same challenge: the


By the Applications Engineering Group, CAMI Research, Inc. However, the electronics industry uses


an enormous range of connector types, and standard boards cover only a fraction of what


become more flexible. For smaller setups, short pigtail adapter


cables can provide a fast and inexpensive so- lution. These adapters use a custom mating connector on one end and a standard tester interface connector on the other. For more permanent appli- cations, custom connectors can be mounted directly on blank prototyping boards that plug into the tester like a standard board. When connector pin density or


spacing creates additional con- straints, engineers may choose a fully custom PCB designed around the test fixture footprint. For large wire har- nesses spread across a wider physical layout, a dedicated mating harness board can be built as a mirror image of the device under test. In other cas- es, especially when the number or size


of connectors makes board-mounted solutions impractical, a rack- or bench- mounted external connector panel may be the best way to keep the interface


accessible and organized. In practice, many fixtures combine more


Continued on next page


Introducing 2 new models of Sayaka PCB Depaneling Router


Stand-alone/In-line 34XJ model offers flexibility and advanced features


S fl


· Stand-alone or In-line selection


· Robot interface for robot communication · Traceability for managing routing date/status · Automatic router bit changer and confirm bit size · Improved tact time with fast travel


speed (Max 1000mm/sec)


Table-top 23S Model offers a small footprint for limited production space


bl t 23SM d l ff · Competitive price and short lead time e (New inventory arriving!)


· Easy Windows GUI software programming


· Reads QR codes & fiducial · MES interface and more


marks automatically features  Easy Windows GUI software programming


See more information at  Ask for a quote today! 


 21241 S. Western Ave. Suite 140 Torrance, CA 90501 Phone: (310) 540-7310 Fax: (310) 540-7930


 23785 Cabot Blvd. Suite 306


Hayward, CA 94545 Tel: 510-293-0580 Fax: 510-293-0940


Clean depaneling


Automation of PCB loading & unloading


 1580 Boggs Rd. #900


Duluth, GA, 30096 Phone: (770) 446-3116 Fax: (770) 446-3118


· Upgraded dust-collection system


for high quality output · Cut precisely with high


repeatability (±0.01mm/10μm) 


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64