RainbowLink V2: 4-Ch Isolated USB to Serial Converter with 12V PSU (TEL0190)
USB protocol converter with four isolated channels (1× RS485, 1× RS232, 2× TTL) and a built-in power supply providing 12 V/800 mA, 5 V/2 A, and 3.3 V/200 mA outputs. Isolation protects the host from ground loops in industrial environments.
Pinout
- USB TYPE-C PortOfficial table 2 row 1
Connects to PC for communication and 5V power supply
Type · power - Power Indicator LightOfficial table 2 row 2
3.3V, 5V and 12V power indicator lights
Type · power - Communication Indicator LightOfficial table 2 row 3
4-channel RX and TX communication indicator lights for TTL1, TTL2, RS485 and RS232
Type · uart - PWR OUTOfficial table 2 row 4
Power Output
Type · pin - TTL1, TTL2Official table 2 row 5
Start wiring
Ethernet · UART · SPI · Shield
Confirm the data interface matches your host board.
Module pins: USB TYPE-C Port, Power Indicator Light, GND, ⑩, Communication Indicator Light, RS485(A). Schematik maps them to your board in the app.
Wired comms
115 other optionsW5100/W5500 Ethernet shields, LAN8720 RMII PHY boards, MAX3243 RS-232 level shifters, isolated USB-to-RS485 converters, CAN FD bridges, and passive or active PoE injectors and splitters.
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