Product Name : Industrial Grade UART TTL to RS485 Isolated communication Surge Protection for Arduino MEGA 4 NODEMCU ESP8266

1 pcs RS485 to TTL Isolated communication Surge Protection Module

Features:

RS485 to TTL232 Isolated communication Surge Protection Module

Working voltage: DC 5V (DC 4.5-5.5V)
Working current: <2mA
Communication rate (baud rate): 100-256000BPS
TTL Level: 5V
TVS anti-surge protection
Industrial grade RS485 chip
RX TX Signal 3000V digital isolation
R/D Signal optocoupler isolation
Operating temperature: -40°C to 85°C
Size : 29 x 16 x 7mm
Weight: about 2g

Typical Application:

RS485 TO TTL
for Arduiuo UNO MEGA PRO DUE
for Raspberr Pi 2 3B+
PLC Industrial control equipment




Pin description
S5V : RS485 Power+
SGND: RS485 Power-
A+ : RS485 A+
B- : RS485 B-
T5V : TTL Power+
TGND: TTL Power-
R/D : Data flow control signal,Usually set to low level,
TTL send data is set to high level
RX : TTL RXD(Connect MCU RXD pin)
TX : TTL TXD(Connect MCU TXD pin)



Wiring diagram: