How to use Barcode scanner ?Many users in the purchase of a barcode scanner does not know how to use, first, we need to understand is that the bar code scanner must be connected to a host computer to operate. The host can be a PC, POS machine, or with a USB, rs232 or PS / 2 interface in any intelligent terminal.

So before we buy barcode scanner, you need to check which ports your host has , what port is convenient for using, then you would buy the appropriate data cables.

There are three data cable we usually use , USB data cable, rs232 data cable and PS/2 cable. Let me introduce the different ways of using the different data cables.

1. USB data cable connection

1) Connect the terminal device interface (RJ 45 1, Interface) of USB cable to bar code scanner;

2) Connect the host interface port (USB interface) of USB cable to the host.

2. RS232 data cable connection (serial port data cable)

1) Connect the terminal device interface (RJ 45 1, Interface) of the RS232 cable to bar code scanner;

2) Connect the host interface port (RS232 interface) of RS232 cable to the host;

3) Then connect the RS232 data cable to Koohii scanner by the power adapter.

3. PS / 2 cable (keyboard Wedge data cable)

1) Connect the terminal device interface (RJ 45 1, Interface) of PS / 2 cable to bar code scanner;

2) Connect the host interface port (PS / 2 interface) of PS / 2 cable to the host;

3) If necessary, please connect the PS / 2 data cable to Koohii scanner by the power adapter;

4) If necessary, please connect a common keyboard to the original interface of PS / 2.