The National Instruments SCB-68A (Part Number: 782536-01) is a robust shielded I/O connector block engineered for seamless interfacing with plug-in data acquisition devices equipped with 68-pin connectors. This connector block is particularly suitable for industrial applications where maintaining signal integrity is crucial, thanks to its shielded design that minimizes noise interference. The SCB-68A features an updated mechanical casing with a magnetic removable top for convenient access, DIN-rail mount compatibility for versatile installation, and a resettable fuse that enhances protection against power surges.

Offering extensive connectivity options, the SCB-68A includes 68 screw terminals capable of accommodating wire gauges from 14 to 30 AWG, with secure torque specifications ranging from 0.5 to 0.6 N·m (4.4–5.3 in·lb). Additionally, it integrates two general-purpose breadboard regions to streamline prototyping and modifications. Equipped with an integrated cold-junction compensation sensor, the SCB-68A ensures accurate temperature measurements, boasting an accuracy of ±1.0 °C over a range of 0 to 70 °C. With a modest power consumption of 1 mA and a maximum current draw of 800 mA from the host computer, this connector block is designed with energy efficiency in mind.

Installation is flexible; the device can be mounted on a panel, conventional DIN rail, or utilized in a desktop setting, facilitated by three keyholes on the back for improved mounting ease. The SCB-68A weighs 1 lb 7 oz and has dimensions of 5.8 × 5.8 × 1.2 inches, representing a compact and efficient solution for industrial I/O applications. For further assistance, user and maintenance manuals are available for download, and inquiries regarding pricing can be directed to a National Instruments sales representative.