USB to RS485 converter documentation

Product catalog summary

Overview: The LSP-CRS is an electrically isolated USB to RS485 converter designed for industrial applications, providing a half-duplex RS485 connection. It features a robust metal housing suitable for factory environments and other installations.

Key Features:

Optical isolation with 2500 VDC protection.
Input over-voltage and short circuit protection.
USB 2.0 compatibility with virtual COM port functionality.
Visual LED indicators for data transmission (RX-TX).
Powered directly from USB, eliminating the need for an external power supply.
FTDI chip for high reliability and performance.
Wall-mountable aluminum case with plug-and-play capability.

Technical Specifications:

Supply Voltage: 5VDC (USB powered).
Processor: FTDI FT232.
Current Consumption: 200 mA.
Optical Isolation: 500V continuous, 2500V spike.
Electrostatic Protection: 15KV EDS.
Surge Protection: 500W/sec.
Operating Temperature: -20°C to 50°C.
Dimensions: 65 x 40 x 25.5 mm.
Weight: 65g.
Max Cable Length: USB = 2m, RS485 up to 1.2 km at 19200 Bps.
OS Compatibility: Windows XP/7, WinCE, Linux, Mac.
USB Interface: 12Mbps USB 2.0 Full speed.
RS485 Interface Baud Rate: 300 to 115200 Bps.

Installation and Use: The converter is powered via USB, with an AIMTEC DC/DC converter providing 3000V DC isolation. It includes indication LEDs for troubleshooting and uses the FT232 processor for reliable performance. Optical isolation is achieved with ACSL-6310 opto-couplers, offering protection for the PC in case of remote device failure. The converter supports Modbus master functionality for industrial communication and control.

Protection Features: Equipped with a gas discharge tube for over-voltage protection against lightning, power switching, and fault conditions.

Catalog excerpts

Levtech Service & Prodtuction SRL Brief descrip on This electrically isolated USB to RS485 converter is designed for industrial use and it makes a half-duplex Rs485 connec on. With its metal housing this converter is highly recommended for factory environment, but it is also suitable for any other installa ons. Features · Optical isolated · Input over voltage protec on · Short circuit protection · USB 2 compatible · Virtual comport · Visual indicator LED for RX -TX · Supply voltage from the USB · FTDI chip · Wall mountable aluminium case · Plug and Play · 2500 VDC isolation Lueta Nr. 319, Romania +40758576007 oﬃ[email protected] www.

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Levtech Service & Prodtuction SRL Descrip on This converter is powered through the USB plug and no external power supply is required. The power source is also isolated using an AIMTEC DC/DC converter, which ensures 3000V DC isola on. Indica on LED lights for TX and RX clearly indicates when data is transmi ng, which is a great help during troubleshoo ng and also you can see when the converter is turned on and working. A er connec ng the converter to the PC, the driver will be automa cally installed and a virtual COM port will appear which acts the same as a serial COM port interface. In case...

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Levtech Service & Prodtuction SRL Supply voltage

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Levtech Service & Prodtuction SRL Lueta Nr. 319, Romania +40758576007 oﬃ[email protected] www.levtech.ro Found a new serial port: COM

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