Product Brief

FINCH-CC485 is a multipurpose IoT bridge board that allows edge nodes connected to the cloud platform. This board can be used to acquire data from energy meters, control panels, PLCs, SCADA systems or any other industrial equipment which is having a UART/COM port as communication port. It supports MODBUS communication. It can be interfaced and send data to remote users/servers through Ethernet or Wifi. The device also has the ability to control a load current upto 7A remotely. The PCB layout is shown above.

Specifications

Parameter	Description
Input power	5VDC±5%
CPU	8-bit AVR microcontroller, 16MHz
Memory	Support for 2 Mb flash available
Communication Ports/Interfaces	RS485, RS232, Ethernet, Wifi, Relay
RS485 Interface	1 port 3-pin terminal block connector A(Data+), B(Data-), GND interfacing pins Up to 32 slaves can be connected Communication is half-duplex
RS232 Interface	1 port 3-pin terminal block connector TX, RX, GND interfacing pins
Ethernet Interface	1 port RJ-45 port with integrated magnetics  Supports up to 10Mbps internet speed
Wifi Interface	Transmit power of ~20dBm Max. Sensitivity -98dBm
Weigand	Weigand interface to connect RFID fixed reader
Relay Interface	1 port 2-pin terminal block connector Electro-mechanical relay SPDT with 250VAC@7A rating
LED indications	Power on – RED LED User-defined – BLUE LED, GREEN LED
Protocols	Modbus RTU TCP/IP MQTT Rest APIs Weigand
PCB Size	100 x 60 mm