usb to 485 conveter in Pakistan

Features:

Usb to rs 485 converter

Pin 1 (A) → Connect to the A (D+) terminal of the RS-485 device.

Pin 2 (B) → Connect to the B (D-) terminal of the RS-485 device.

Pin 3 (GND) → Optional signal ground. Connect if your RS-485 device has a GND terminal and communication is unstable.

Pin 4 (GND) → 5V power ground (only if you want to power an external device from the adapter).

Pin 5 (+5V) → 5V output from the USB port (optional, for powering low-power external devices).

Basic connection

USB to RS485 RS485 Device

-----------------------------------

A -----------------> A (D+)

B -----------------> B (D-)

GND (optional) ------> GND

Steps

Plug the adapter into your computer.

Install the USB driver if needed (often CH340, FTDI, or CP2102 depending on the chipset).

Note the COM port assigned in Device Manager (Windows).

Open your serial communication software (such as Modbus Poll, ModScan, or a serial terminal).

Set the correct baud rate, parity, stop bits, and slave address to match your RS-485 device.

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