RS485 Isolator Click Board™

Product Code: MIKROE-2673

The RS485 Isolator Click Board™ is a RS485 communication isolator, and carries the ADM2682E, a 5 kV rms signal and power isolated RS-485 transceiver, from Analog Devices. The click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over UART interface, with additional functionality provided by the RST and CS pin on the mikroBUS™ line. Use the click for isolating RS485 communication, and preventing voltage spikes from destroying sensitive equipment. ADM2682EBRIZ Transceiver Features The ADM2682EBRIZ is a fully integrated 5 kV rms signal and power isolated data transceiver with ±15 kV ESD protection that is suitable for high-speed communication on multipoint transmission lines. The ADM2682EBRIZ includes an integrated 5 kV rms isolated dc-to-dc power supply that eliminates the need for an external dc-to-dc isolation block. Specifications Type Isolators,RS485 Applications Isolated RS-485 interfaces, industrial field networks, multipoint data transmission systems On-board modules ADM2682EBRIZ, a 5 kV rms signal and power isolated RS-485 transceiver Key Features fully integrated 5 kV rms signal and power isolated data transceiver with ±15 kV ESD protection, integrated 5 kV rms isolated dc-to-dc power supply Interface GPIO,UART Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V Pinout diagram This table shows how the pinout on the RS485 Isolator Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Pin Notes NC 1 AN PWM 16 NC Receiver Enable RE 2 RST INT 15 NC Driver enable DE 3 CS TX 14 RXD Receiver Output Data NC 4 SCK RX 13 TXD Driver Input NC 5 MISO SCL 12 NC NC 6 MOSI SDA 11 NC Power supply +3.3V 7 3.3V 5V 10 +5V Power supply Ground GND 8 GND GND 9 GND Ground Jumpers and settings Designator Name Default Position Default Option Description JP1 PWR.SEL. Left 3V3 Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V LEDs and buttons Designator Name Type Description TB1 SCREW TERMINAL A and B part of RS485 comm lines. TB2 SCREW TERMINAL Y and Z part of RS485 comm lines