Function: 1 Module wiring has common anode signal input, common cathode signal input, and differential signal input. 2. Using advanced production technology, the limit switching frequency can be up to 20KHZ. 3 It can be used for signal isolation, single chip microcomputer, level transformation between PLC and other signals, conversion PNP and NPN signal to NPN signal, converting signal level and voltage 4 Made of high quality materials, this light insulation module is sturdy, durable, and resistant to damage, and has a long life. 5 It has excellent performance, fast and stable signal conversion speed, high work efficiency, and easy operation. Specifications: Item Type: Optical Insulation Module Limiting Switching Frequency: 20KHZ Application: Can be used for signal isolation, single chip microcomputer, level converter between PLC and other signals, PNPN and NPN signal to NPN signal, signal level and voltage conversion etc Size: Approx. 97 x 71 x 16mm / 3.8 x 2.8 x 0.6in Package List: 1 x Optical Isolation Module Note: 1 This model is DST‑1RBP‑N (rail mounting frame is not included). Model Analysis: DST (Digital Signal Converter)‑1R (One-Way Transmission) 8P (8 Channel)‑N (NPN output) 2 The V of the output signal and the amount of V used to power the module