Name: Predision HEUS-T-028 USB to RS-485/422 Converter
Brand: Predision
Price: 51.00 USD
Availability: OutOfStock

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Predision HEUS-T-028 USB to RS-485/422 Converter

Manufacturer Part Number: HEUS-T-028

Brand: Predision

$ 51.00

Operating Temperature: -20°C to 75°C
±15 kV ESD Protection
Baud Rate: 300 - 921,600 bps

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More stock available: May 29, 2026 (UTC-4)

The HEUS-T-028 is a universal USB to RS-485/422 converter that requires no external power supply. Fully compatible with USB, RS-422, and RS-485 standards, it converts single-ended USB signals into balanced differential RS-422 or RS-485 signals. The device features per-wire surge protection to effectively suppress transient voltages. Its low inter-pole capacitance ensures stable, high-speed data transmission across the RS-485/422 interfaces, which are connected via a standard DB9 male connector. Equipped with a zero-latency automatic transceiver and unique I/O circuitry, the converter automatically manages data flow direction without the need for handshaking signals (such as RTS or DTR). It ensures seamless integration across all modern communication software and interface hardware.

Standard	USB 1.1/2.0; EIA RS-485/422
USB Signals	VCC, DATA-, DATA+, GND, FG
RS-485 Signals	T+, T-, GND
RS-422 Signals	T+, T-, R+, R-, GND
Operating Mode	Asynchronous, Point-to-point or Point-to-multipoint Mode
Direction Control	Integrated Automatic Data Flow Control technology automatically detects and manages the data transmission direction
Baud Rate	300 - 921,600 bps with Auto-Baud Detection
Node Support	Supports connection of up to 32 RS-485 or RS-422 Devices in Point-to-multipoint Mode
Transmission Distance	1,200m for RS-485/422 (at 9,600 bps), 5m for USB
Interface Protection	±15 kV ESD Protection
Interface Connector	USB Type-A Male, DB9 Male Connector for RS-485/422 Port
Transmission Media	Twisted-pair (UTP) or Shielded Cable (STP)
Cable Length	1500 mm
Operating Temperature	-20°C to 75°C
Relative Humidity	5 - 95%
OS Support	Win 98/Win 2000/WinXP/Vista/Win 7/Win 8/8.1/10/Linux

HEUS-T-028

USB to RS-485/422 Converter, Screw-fixed Plastic Housing, 1.5 m Cable, Baud Rate: 300 bps - 921.6 kbps with Auto-Baud Detection, Transmission Distance: 1,200m (at 9,600 bps) for RS-485/422 Port, 5m for USB, ±15 kV ESD Protection, Operating Temperature: -20℃ to 75℃.

HEUS-T-029

USB to RS-485/422 Converter (USB 2.0), Screw-fixed Plastic Housing, 1.5 m Cable, Baud Rate: 300 bps - 921.6 kbps with Auto-Baud Detection, Transmission Distance: 1,200m (at 9,600 bps) for RS-485/422, 5m for USB, Operating Temperature: -40℃ to 85℃.

HEUS-T-033

USB to RS-485/422 Converter, Photoelectric Isolated, Aluminum Enclosure, Baud Rate: 300 - 128,000 bps, Transmission Distance: 5,000m (at 9,600 bps) for RS-485/422 Port, 5m for USB, 1,500 W Lightning and Surge Protection, ±15 kV ESD Protection, Operating Temperature: -40℃ to 85℃.

HEUS-T-034

USB to RS-485/422 Converter (USB 2.0), Plastic Housing, Baud Rate: 300 - 921.6 kbps with Auto-Baud Detection, Transmission Distance: 1,200m (at 9,600 bps) for RS-485/422 Port, 5m for USB, 600 W Lightning and Surge Protection, ±15 kV ESD Protection, Operating Temperature: -40℃ to 85℃.

HEUS-T-036

USB to 8-port RS-485/422 Converter (USB 2.0), Photoelectric Isolated, 1U Enclosure, Baud Rate: 300 - 921,600 bps, Power Input: AC 100-240 V /50-60 Hz, Transmission Distance: 5,000m (at 9,600 bps) for RS-485/422 Port, 5m for USB, Operating Temperature: -25℃ to 70℃.

Driver： Predision_USB_to_Serial_Converter_HEUS-T-028_Driver_EN.zip

Datasheet ： Predision_USB_to_Serial_Converter_HEUS-T-028_DS_EN.pdf

Quick Installation Guide： Predision_USB_to_Serial_Converter_HEUS-T-028_QIG_EN.pdf

LineCard： Predision_Line_Card_M2M_Connectivities.pdf