Frequently Asked Questions

How to issue serial commands via USB connection and set power level?
Last Updated 3 years ago

Connecting the USB Cable

STEPS:
1. RFID Reader has a built-in USB port enabling its connection to host computers for configuration and data transmission.
2. Remove the USB port cover.
3. Connect the USB communication cable to USB port. (USB logo shall face down)
4. Connect the other end of the USB cable to the host computer.


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On the host computer:

STEPS:
1. Go to the “Device Manager” on the host computer to confirm the used COM port. For example below, the USB Virtual COM_CDC - COM3 is being used.

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2. Use a terminal emulation program, e.g. HyperTerminal, to confirm the connection between host computer and RFID Reader. Open the HyperTerminal on the host computer.
3. Enter a name and choose an icon for the connection. Click “OK” to continue.

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4. According to the information of Step 1, select the proper connected COM port, e.g. COM3.

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5. Click “OK”.

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6. In the COM3 Properties window, you can click the “Restore Defaults” to use default values for connection. Then, click “OK”.

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7. In the HyperTerminal window, click imageon the tool bar to open Properties configuration window, see below. Click “Settings” tab.

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8. Click [ASCII Setup] to open ASCII Setup window and some check boxes need to be selected for normalized issuing commands, see below. Click "OK".

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9. After finishing ASCII Setup, in the Properties configuration window, click “OK”.

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Configure 1861 parameter

STEPS:
1. Now, you can begin to issue commands between the host computer and RFID Reader. For example, you can issue “#@sys_info?” command for testing. If the connection is successful, the HyperTerminal will display the following response from the reader.

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2. [Power Level]
a. "#@rf_plv?"
This command can check your power level

b. "#@rf_plv=3"
This command can set your 1861 power level.
The level is between 0~3 and 3 is the maximum power.
The default of 1861 is 3; for lower power level, you can set the power by issuing #@rf_plv=1.

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