1、This module uses RS485 communication interface, 32‑channel transistor output (non‑isolated), quick response 2、The output response speed <1ms, input refresh rate is 200Hz and baud rate support 600~115200 3、RS485 baud rate is optional 600, 1200, 2400, 4800, 9600, 19200, 38400, 115200 4、High quality engineering plastic material can make sure the durability and stability of the product 5、Great and standard workmanship, adopt rail installation mode, easy and simple to install and remove Item Type: RS485 IO Extension Module Power Supply: 18~28V DC Input Terminal Trigger Mode: Ground Input Port Trigger Current: 2mA Output Terminal Output Mode: Pull down to com Maximum Continuous Sink Current of a Single Output Port: 2A Maximum Instantaneous Current of Output Single Port(≤1ms): 15A Communication Interface: RS485; RTU Material: Engineering Plastic Use Environment and Installation Method: 1. In order to prevent the internal temperature of the machine from overheating, please use the wall-mounted installation. It is required to leave enough space above and below as a heat dissipation space. 3. Avoid dust, oil, and corrosive environments; pay attention to electrostatic protection (avoid direct contact with the circuit board circuit with your hands). Adopt rail installation. 1 x RS485 IO Extension Module 1 x User Manual