USB interface directly connect to computer USB when in use half-duplex 485 bus interface : RS485_A interface, RS485_B interface. There are A (D+) and b (D-) on the wiring to indicate. Some equipment signs D+ means A and D- means B

Specifications

• USB TO RS484 connector
• USB Powered
• Fully compliant USB 2.0 and backwards compatible
• Windows XP, Vista, Windows7, Linux, MacOS and WinCE5.0 drive
• Support baud rate 75bps - 115200bps up to 6Mbps
• work temp -40 +85
• Communication distance 1200m