Main Features: 1. Red PWR power indicator 2. Blue R/T Led indicator, will flash when they are working 3. Bias output, stable signal, can remove background noise efficially 4. 1:1 Electromagnetic isolation 5. High quality TVS, anti-shock, anti-surge current 6. Can connect USB-to-UART or RS232-to-UART chips directly, suitable for making Hart modem 7. Suitable for HART function process control Pin Instruction:1. A and B: No anode and cathode difference, connect to load resistor directly. Or refer to the instruction of other meters. 2. GND: Ground 3. VDD: DC 2V~5.5V input 4. RXD: Modulate output, TTL port, connect to MCU or RXD pin 5. TXD: Demodulate input, TTL port, connect to MCU or TXD pin 6. RTS: High level for demodulate mode, Low level for modulate mode, TTL port 7. OCD: Signal carrier detection, OCD=1 means the input signal > 120mV, OCD=0 means the input signal 8. RST: Rest pin, connect to the power usually. The shipment will be arranged in 1-3 working days( not including customized product), and takes about another 3-9 working days to reach you.
Trustpilot
1 week ago
2 days ago
