I-7561 - isolated USB to RS-232/422/485 converter

Industrial USB to RS-232/422/485 Converter

The I-7561 is an advanced isolated USB to RS-232/422/485 converter that enables reliable and stable communication between PCs and industrial devices. With 3000 VDC galvanic isolation, the device effectively protects systems from interference, surges, and potential differences, ensuring secure data transmission even in demanding industrial environments.

The I-7561 converter supports USB 1.1/2.0/3.0, allowing easy connection to computers and control devices without requiring an additional power supply. It is compatible with popular communication protocols RS-232, RS-422, and RS-485, making it a universal solution for various industrial automation, SCADA systems, and energy management applications.

Thanks to automatic transmission direction control, the device eliminates the need for manual signal switching, simplifying configuration and operation. A durable enclosure and the ability to be mounted on a DIN rail make the I-7561 an ideal solution for demanding industrial environments where reliability and ease of integration with existing systems are key.

Key Features and Benefits

• 3000 VDC galvanic isolation – effective protection against surges and electromagnetic interference.
• Supports USB 1.1/2.0/3.0 – broad compatibility with computers and PLC controllers.
• Automatic transmission direction control – built-in Self-Tuner mechanism eliminates the need for manual configuration.
• Three communication interfaces – supports RS-232, RS-422, and RS-485 in a single device.
• Transmission speed up to 115200 bps (921600 bps in the I-7561U model) – fast data exchange.
• Plug & Play – no external power supply required, powered directly from the USB port.
• LED Indicators – transmission and power status indicators facilitate diagnostics.
• Durable enclosure – made of UL94-V0 flame-retardant material.
• DIN rail mounting – quick and hassle-free installation in control cabinets.

By combining high isolation, automatic transmission handling, and universal protocol compatibility, the I-7561 is a reliable solution for professional automation systems, SCADA systems, smart buildings, and energy management applications.

Technical Specifications

The I-7561 is an isolated USB to RS-232/422/485 converter, designed to ensure stable and secure data transmission in industrial applications. With 3000 VDC galvanic isolation, the device effectively protects systems from surges and electromagnetic interference. It supports USB 1.1/2.0/3.0 standards, ensuring broad compatibility.

The I-7561 supports automatic transmission direction control, eliminating the need for manual configuration. The device is ideal for industrial and building automation applications.

Connection Diagram

The I-7561 is easy to connect and does not require an additional power supply, as it draws power directly from the USB port. Depending on the communication standard used, the device can operate in RS-232, RS-422, or RS-485 modes, providing flexibility and easy integration into industrial systems.

RS-232 Connection

• TX (Pin 3) → Data Transmission
• RX (Pin 2) → Data Reception
• GND (Pin 5) → Signal Ground

RS-422 Connection

• TX+ / TX- → Differential Transmitter
• RX+ / RX- → Differential Receiver
• GND → Signal Ground

RS-485 Connection

• Data+ (D+) → RS-485 Positive Signal
• Data- (D-) → RS-485 Negative Signal
• GND → Signal Ground

With automatic transmission direction control, the I-7561 automatically switches between transmission and reception modes in RS-485 mode, eliminating the need for additional RTS/CTS signal control. The device can be easily mounted on a DIN rail, simplifying installation in control cabinets.

Where to Buy I-7561?

The I-7561 is available at CONSTEEL Electronics – an authorized distributor of ICP DAS. We offer fast shipping, professional technical support, and competitive prices. By purchasing from CONSTEEL Electronics, you ensure that you receive an original product with a warranty and expert assistance in integration.