Allen-Bradley's 42FT fiber optic device is a small, DIN rail-mounted fiber optic device. Part identification, diagnostic, and self-teaching capabilities are provided by this photoelectric sensor with complex capabilities. The diagnostic and alignment information is provided via five LED indicators. When the margin levels fall below a predefined threshold for seven consecutive detections, the output of a dynamic diagnostic signal is generated. The Bulletin 42FT's self-teach function enables it to identify the most appropriate sensitivity and hysteresis settings for a certain application by experimenting with them. Using the remote lockout option, you may prevent unwanted changes to these settings from taking place. A switch-selectable 50ms off-delay is useful in high-speed settings where the output pulse must be delayed to allow time for the machinery logic to respond. The 42FT sensors are meant to be mounted on a DIN rail. A steel mounting bracket is included for independent installation to make it easier to put everything together. The 42FT sensors are intended for use with plastic fiber optic cables having a diameter of 2.2 mm. The sensor comes with an adapter that allows it to be used with plastic fiber optic cables with a diameter of 1.25 mm. A revolving collar secures the fiber optic wires in their position. Fiber optic cables may be attached and removed without the need of any tools. Glass fiber optic cables of a certain design are also available. The following are some of the characteristics: Pico quick-disconnect is offered. The module features five LED indicators with 0.8X to 1.6X margin and output, as well as manual or self-teach sensitivity adjustment features, then manual or self-teach hysteresis modification, stability output, manual or self-teach sensitivity adaption.