FT232RNL USB TO RS232/485/422/TTL Interface Converter

This industrial-grade isolated USB Converter has an onboard original FT232RNL Chip, which provides fast communication, stability, high reliability, and has multi-system support including Mac, Linux, Android and Windows 11 / 10 / 8.1 / 8 / 7. The converter also has multiple conversion support, including USB to RS232, USB to RS485, USB to RS422, USB to TTL

Featuring a safer isolated design with onboard unibody power supply isolation, a stable isolated voltage, and no extra power supply needed for the isolated terminal. With a USB-B port for the power supply, an RS232 Port, and an aluminium alloy enclosure with wall-mount support for easier installation. This device is a great choice when looking for a safe, reliable and easy-to-use converter.

Features

• Original FT232RNL chip, fast communicating, stable and reliable, better compatibility
• Multiple communication interface conversion: USB to RS232, USB to RS485, USB to RS422, USB to TTL
• Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal
• Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
• Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning proof & ESD
• protection
• Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
• Fully automatic transceiver circuit with no delay, ensures the USB port communicates with different interfaces fastly and stably, without interfering with each other
• Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via switch
• 3 LEDs for indicating the power and transceiver status
• High-quality USB-B and RS232 connectors, smoothly plug/pull
• Industrial grade metal case, supports wall-mount and rail-mount installations, solid and beautiful, easy to install

What’s on Board

Specifications

PRODUCT TYPE	Industrial grade digital isolated converter
USB	Operating voltage	5V
	Connector	USB-B
	Protection	200mA self-recovery fuse, isolated output
RS232	Connector	DB9 male
	Protection	TVS diode, surge protection & ESD protection
	Transmission mode	Point-to-point
	Baud rate	300bps ~ 3Mbps
RS485/422	Connector	Screw terminal
	Direction control	Hardware automatic control
	Protection	600W lightningproof and surge-suppress, 15KV ESD protection (reserved two 120R balancing resistors, enabled/disabled via jumper)
	Transmission mode	Point-to-multipoints (485 mode: up to 32 nodes, it is recommended to use repeaters for 16 nodes or more； 422 mode: up to 256 nodes, it is recommended to use repeaters for 16 nodes or more)
	Baud rate	300bps ~ 3Mbps
TTL (UART)	Operating voltage	3.3V / 5V
	Connector	Screw terminal
	Pins	TXD, RXD, GND, 5V/3.3V
	Protection	clamp protection diode, over-voltage/negative-voltage proof, shock resistance
	Transmission mode	Point-to-point
	Baud rate	300 bps ~ 3Mbps
INDICATORS	PWR	Red power indicator, light up when there is USB connection and voltage is detected
	TXD	TX indicator, light up when the USB port sends data
	RXD	RX indicator, light up when the device ports send data back
OPERATING ENVIRONMENT	Temperature	-15℃ ~ 70℃
	Humidity	5%RH ~ 95%RH
OPERATING SYSTEM	Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7

Resources

• Product Wiki

• FT232R.pdf

• SP481E SP485E.pdf

Pinout

Package Contents

• 1x USB TO RS232/485/422/TTL 
• 1x Rail-mount buckle 
• 1x USB type A to type B cable ~1.2m 
• 1x Screwdriver