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Product description
USB RS-485 converter without galvanic separation. Transmission speed in the range of 300 bps to 115.2 kbps. Software to work with programs communicating over COM serial ports. Three LEDs. Power from USB only. Designed for service work.
Function
Connecting devices equipped with an RS-485 port to a PC with a USB port.
Port RS-485
• Baud rate: 300 bps … 115,2 kbps
• Maximal number of transmitters / receivers: 32
• Short circuit protection: YES
Port USB
• Standard compatible with USB 1.1 and USB 2.0
LED information
• Three LEDs for indication: PWR, TxD, RxD
Other parameters
• Powered from the USB port
• Power consumption (max): 35 mA (without load on RS-485 side)
• No galvanic separation USB / RS485
The drivers and the virtual communication port COM have to be installed (not required for MS WIN7, WIN10).
USB | |
Standard | In compliance with USB 2.0 |
RS-485 | |
Baud rate | 300 bps .. 230.4 kbps |
Maximum number of transmitters / receivers | 32 (limited line length and without terminating resistors) |
Differential output voltage (TxD) | 3.3 V for RL=∞; min.: 1.5 V for RL=54 Ω |
Receiver input resistance (RxD) | 12 kΩ |
Minimum input voltage (RxD) | 0.2 V |
Acceptable voltage on A,B terminals | -7 .. +12 V (max) |
Short-circuit protection | Yes |
Others | |
Intended use | For service purpose only |
Power supply | From USB port |
Rated current | 35 mA (without load on RS-485 side) |
USB / RS-485 galvanic separation | No |
Work temperature | 0 .. +50 °C |
Store temperature | -20 .. +60 °C |
Dimensions (without terminals) l x W x H | 56 mm x 31 mm x 25 mm |
Weight | ca. 25 g |
Operating system | |
For VCP (Virtual COM PORT Drivers) | Windows 10 (32, 64 bit), Windows 8/8.1 (32, 64 bit), Mac OS-X, Linux 3.2 and greater |
For D2XX (USB Direct Drivers) | Windows 10 (32, 64 bit), Windows 8/8.1 (32, 64 bit), Mac OS-X, Linux 2.6 and greater |