RainbowLink 4 Channel USB to Serial Converter (RS485 / RS232 / TTL)
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RainbowLink 4 Channel USB to Serial Converter (RS485 / RS232 / TTL)
RainbowLink is a powerful USB protocol converter built for multi-channel serial communication and power output. With 4 independent channels — RS485, RS232, and two TTL channels, it provides a complete solution for IoT, industrial, and development environments.
It is fully compatible with Windows and Linux systems and supports development platforms like LattePanda and Raspberry Pi. No driver installation required for basic use — just plug and go. Optional drivers enable advanced features like assigning unique device identifiers, ideal for complex configurations.
Key Features
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4 Independent Channels: RS485, RS232, and 2×TTL
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USB Type-C powered, supports up to 5V/2A
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3 simultaneous power outputs: 12V, 5V, 3.3V
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Quick-connect terminals — no tools or soldering required
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Cross-platform: Supports Windows, Linux, LattePanda, Raspberry Pi
Quick-Connect Lever Terminals
Say goodbye to messy jumper wires and unreliable connections. RainbowLink uses lever-style quick-connect terminals that support over 2000 cycles. They are compatible with pin headers and sockets, making it easy to achieve a clean, fast, and secure wiring setup — perfect for lab and field environments.
4 Independent Channels in One Device
RS485, RS232, and 2×TTL channels operate independently, allowing simultaneous control of multiple devices without interference. Ideal for managing complex communication setups across multiple protocols.
Flexible Power Output Options
No more switching between adapters. RainbowLink provides 3 stable voltage outputs for powering sensors and devices directly:
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12V (800mA)
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5V (2A)
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3.3V (200mA)
This makes it easy to work in remote or mobile setups where traditional power sources may not be available.
Applications
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Industrial sensor testing & debugging
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Multi-protocol communication setups
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Development board testing in lab environments
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Field data acquisition systems
Specification
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USB Interface: Type-C
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Input Voltage: 5V
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Baud Rate: 2400 ~ 128,000 bps
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TTL Level: 3.3V
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TTL Channels: 2
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RS485 Channel: 1
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RS232 Channel: 1
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Output Voltage:
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3.3V (200mA max)
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5V (max 2A via USB-C port)
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12V (800mA max)
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System Compatibility: Windows / Linux
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Platform Compatibility: LattePanda, Raspberry Pi
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Driver: Optional for advanced features
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Size: 72mm × 47mm × 23mm
Included in the Box
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RainbowLink 4-Channel USB to Serial Converter (RS485 / RS232 / TTL) ×1
Reference
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
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2. Warranty Policy
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The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
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If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
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