TTL RS485 Serial Communication Module DIN-Rail Mount Bidirectional Interconversion with Power Isolation and Digital Isolation SP3485 Chip

Adopting original SP3485, it realises the interconversion of TTL and RS485 signals, no need for ‘receive - send’ control, using this module is as simple as operating your serial port.5.0mm screw-type terminal wiring, the use of the TTL end of the need to access the power supply.The circuit only adopts 5V power supply, the output signal level of TTL signal terminal is 5V (the same as the power supply voltage), the input signal level is 5V (compatible with 3.3V signal input).With independent power supply isolation and signal isolation circuitsThe TTL terminal is equipped with over-current protection and surge protection. It can ensure stable output of current and voltage, and strong anti-shock ability.RS485 terminal with overcurrent protection, surge protection, lightning gas discharge protection circuitryOn-board 120R termination resistor selector toggle switch, which can increase the stability of signal transmission.Baud rate support range: up to 2MbpsOn-board three LED indicators, used to indicate the circuit signal transceiver statusPWR light: red, power indicatorTXD light: green, TTL data transmission indicator, data flow: RS485->TTLRXD lamp: blue, TTL data receiving indicator, data flow: TTL->RS485DIN-rail ABS environmentally friendly housing, compact size, easy to install, cost-effective beauty

• [Industrial chip] Adopting industrial chip SP3485 to realize mutual conversion of TTL level and RS485, high-speed communication, stable and reliable, good compatibility, baud rate support range: ≤ 2M bps (experimental environment).
• [Signal Optimisation] With power isolation to improve the stability of the module's internal power supply, with digital isolation chip to improve the stability of the internal signal transmission, the overall ability to adapt to more complex environments
• [Protection Upgrade] TTL and 485 terminals with overcurrent protection and surge protection to ensure stable current and voltage output, strong shock resistance, additional on-board lightning gas discharge protection circuit.
• [Detailed Optimisation] On-board automatic transmit/receive conversion circuit, no need for ‘transmit/receive’ control. There are three LEDs for power, transmit and receive, which can visually display the circuit status, additional compatibility with 3.3V TTL level inputs
• [High Quality Components] ABS housing, DIN rail mounting, with 120Ω terminating resistor, dialable cut-in/cut-out, 5.0mm screw terminals, easy wiring installation