USB TO RS485 - B CH340 WVS

210.000₫

USB TO RS485 - B CH340 WVS Communication Module Bidirectional Half-Duplex Serial Line Converter Communication Module

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Loại	Mạch Chuyển Đổi USB TO RS485 - B CH340 WVS
IC	CH340
Điện Áp Hoạt Động	5Vdc
Chuẩn Giao Tiếp	USB 2.0
Hổ Trợ	Windows98 / ME / 2000 / XP / WIN7 / Vista, Linux, Mac

USB to RS485/RS232 Communication Module Bidirectional Half-Duplex Serial Line Converter Communication Module

nterface pins: GND, A+ (TXD), B- (RXD)
Direction control: hardware automatically determines and controls the direction of data transmission
Interface protection: Provides 600w surge and 15KV electrostatic protection (onboard 120R balanced resistor)
Transmission distance: RS485 (about 1200 meters), RS232 (about 10 meters) at low speed
Transmission mode: point-to-multiple (up to 32 nodes, it is recommended to add a repeater RS232 for more than 16 nodes (one point-to-point interface can only connect one device, if multiple devices need to be connected, a repeater is required)
Indicator light:
PWR: Power indicator light, when connected to USB, the light turn on when voltage is detected.
TXD: Transmit indicator light, the light turns on when data is sent from the USB port.
RXD: Receiving indicator, lights up when the USB interface receives data.
USB to RS485/RS232 interface description:
GND: Peripheral connection GND
A+TXD: RS485 connects to A, RS232 connects to RXD
B-RXD: RS485 connects to B, RS232 connects to TXD