Module features:
1.RS422 interface, two-way communication.
2. A B Y Z GND connector (GND can not be used). Ultra-long transmission 1000 meters
3. With 15KV ESD protection.
4. Increase the power 10 Ohm current limiting over-current protection resistor on the board.
5. TVS diodes, anti-lightning, anti-spike voltage.
6. 120 ohm termination resistance, effectively reduce long-distance communication echo interference.
7. There is a power indicator
8.RS485 interface has 2-wire and 3-wire mode, provides GND, you can choose.
9. The RS485 interface uses the conventional 301 terminal, the wiring is simple, the user can also weld 2.54mm pitch pins.
10. TTL side, use 5V DC power supply RXD TXD compatible 5V logic signal.
11. Communication speed 2.5MBPS

Port description:
A=R+
B=R-
Y=T+
Z=T-

Package Included:
1pcs RS422 to TTL Signal Module