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High-precision side-access probing mechanisms designed to engage edge connectors, side-mounted ports, and lateral test points without interfering with main vertical fixture strokes.
Side Access Customization mechanisms solve one of the most critical structural challenges in modern electronics testing: accessing lateral test points, perimeter connectors, and side-mounted interfaces on complex printed circuit board assemblies (PCBAs). Standard “bed of nails” test fixtures rely primarily on vertical press strokes to engage top and bottom test pads. However, contemporary PCB designs frequently feature edge-mounted USB, HDMI, RJ45, Ethernet, and custom multi-pin connectors that require precise horizontal or angled actuation to establish complete circuit connectivity during testing.
By integrating custom side-access modules into In-Circuit Test (ICT) and Functional Test (FCT) fixtures, manufacturers eliminate the need for manual cable plugging or multi-step test setups. These lateral probing systems actuate automatically during the main fixture clamping cycle—using pneumatic drives, mechanical linkages, or motorized sliders—to extend test probes or connector counterparts directly into the board’s edge interfaces. This ensures comprehensive functional coverage while protecting sensitive perimeter connectors from mechanical wear and pin damage.
Mechanical Precision & Actuation
Custom-engineered horizontal and angled slide mechanisms that engage side connectors, micro-switches, and perimeter test pads simultaneously with main vertical clamping.
Operates via automated pneumatic cylinders or guided mechanical levers synchronized precisely with the primary press stroke to prevent premature probe impact.
Eliminates human error and mechanical strain associated with manual cable insertion, significantly extending the operational lifespan of target board connectors.
Integration & Production Versatility
Modular design allows smooth integration into standard manual, vacuum, and pneumatic fixture frames without expanding the overall bench footprint.
Quick-change lateral probe modules enable fast adjustments to support multiple product variations on the same core testing line.
Ensures full interface verification—confirming both electrical continuity and physical connector alignment—before final product enclosure assembly.
At Fixtronic, we design and manufacture custom bed-of-nails test fixtures tailored to your PCBA testing needs. Combining extreme precision with fast lead times and competitive pricing, we help keep your production running without downtime.
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