The new 39170 Series of interface modules is built to serve as a cost-effective method of interfacing field wiring to PLCs and other control devices. These DIN-rail mounted devices connect a high-density cable from a PLC or electronic control system to terminal blocks where wiring from field devices is terminated. The series is said to reduce wiring time, checkout, and troubleshooting time because the connections between the PLC cable and the terminal blocks are prewired on a PC board. In addition, 39170 series interface modules are designed to offer space savings of up to 60 percent compared to standard DIN rail terminal blocks. The modules are well suited for a variety of applications in the industrial control equipment, process control and system, machine building, material handling, power and compressor systems, and transportation industries. The interface modules support from 9 to 50 circuits per module. Engineers can choose from a variety of connection methods as well as fixed or pluggable terminal blocks. The PLC/controller interface is available with a ribbon cable connector or a D-sub connector. Clear terminal markings are designed to help eliminate wiring errors, while rising cage clamp technology helps to ensure reliable connections. The 39170 series interface modules can be customized with specific connectors or components, such as resistors, capacitors, diodes, and LEDs, upon request. Pricing is typically less than $1.20 per circuit for modules with 20 to 50 circuits. Typical lead-time is stock to four weeks.