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Industrial USB to RS485/422 Isolated Converter with FT232RL and SP485EEN
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The USB to RS485/422 is an industrial-grade isolated converter designed for reliable and stable communication. Featuring an original FT232RL chipset and SP48...
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The USB to RS485/422 is an industrial-grade isolated converter designed for reliable and stable communication. Featuring an original FT232RL chipset and SP485EEN transceiver, it ensures fast, interference-free data transmission. The unit includes multiple protective circuits such as power isolation, ADI magnetic coupling isolation, TVS (Transient Voltage Suppressor), and ESD protection. It operates seamlessly with automatic data transmission and reception, making it ideal for industrial control applications requiring high communication stability.
Features
- High Performance: Built-in FT232RL and SP485EEN chipset for fast, stable, and reliable communication.
- Power Isolation: Onboard power supply isolation eliminates the need for an extra power source for the isolated terminal.
- Signal Isolation: Digital isolation ensures strong anti-interference capability and low power consumption.
- Surge Protection: Integrated TVS suppressor protects against transient voltage spikes, lightning, and electrostatic discharge.
- Enhanced Safety: Self-recovery fuse and protection diodes safeguard against over-current and over-voltage.
- Industrial Protection: 15KV ESD isolation and 600W lightning-proof design ensure long-term durability.
- Configurable Resistor: Onboard 120Ω termination resistor (disabled by default), configurable via jumper.
- Status Indicators: LED indicators for power, TX, and RX status.
- Durable Enclosure: Compact ABS industrial rail-mount design for easy installation and long-term reliability.
Specifications
- Baud Rate: 300bps ~ 3Mbps
- Host Interface: USB (Type-B connector with self-recovery fuse and ESD protection)
- Device Ports: RS485/RS422 (Screw Terminal)
- Operating Voltage: 5V
- RS485 Interface: A+, B-, PE
- RS422 Interface: TA, TB, RA, RB, PE
-
Transmission Distance:
- USB: ~5m
- RS485/422: Up to 1200m (at low data rates)
- Transmission Mode: Point-to-multipoint (up to 32 nodes; use repeaters for over 16 nodes)
-
Protection:
- 600W lightning-proof, 15KV ESD protection
- Onboard 120Ω termination resistor (configurable)
-
Indicators:
- PWR (Red) - Power status
- TXD (Green) - USB data transmission
- RXD (Blue) - Data reception from RS485/422
- Operating Temperature: -15°C ~ 70°C
- Humidity: 5%RH~95%RH
- Supported OS: Windows 10/8.1/8/7/XP, Mac, Linux, Android, WinCE
- Enclosure: Rail-mount ABS case (81.9 x 54.0 x 32.0 mm)
Software Installation
-
Driver Installation:
- Automatic: Use a driver installation wizard to detect and install the driver.
-
Manual:
- Connect the device via USB.
- Open Device Manager; if a yellow exclamation mark appears, install the driver.
- Download the driver from the official website, extract it, and follow installation prompts.
Hardware Testing
- RS485 Test: Connect two units via RS485 (A+ to A+, B- to B-), open serial debugging software, and verify communication.
- RS422 Test: Cross-connect two units (TA to RA, TB to RB), open serial debugging software, and verify data transmission.
Resources
- Drivers: VCP driver available for Windows, Mac, and Linux (download from FTDI official website)
- Datasheets: FT232RL, SP485EEN
- Software: Serial communication utilities (SSCOM, Putty)
FAQ
-
Q: Does it support Linux?
- A: Yes, it is compatible with Windows, Mac, Linux, and Android.
-
Q: What if RS485 communication is unstable at short distances?
- A: Remove the onboard 120Ω termination resistor.
-
Q: How to confirm the module functions correctly?
- A: Perform an RS422 loopback test.
Support For additional resources, troubleshooting guides, and firmware updates, visit the official support page or contact customer service.
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- ESD protection
- ESD protection helps protect electronics from damage caused by static electricity discharges. It is useful on development boards because cables, sensors and modules are often plugged and unplugged during prototyping.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- RS485
- RS485 is a robust wired serial communication standard often used in factories, farms, and buildings where cables may be long or electrically noisy. It matters because it lets this controller connect to industrial sensors, meters, and control equipment over longer distances than typical hobby serial wiring.
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