Programmable keyboard LPOS-064-QUADCOM-USB

Programmable keyboard LPOS-064-QUADCOM-USB

Programmable keyboard LPOS-064-QUADCOM-USB

Programmable keyboard LPOS-064-QUADCOM-USB with 4 virtual COM ports.

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  • MPOS-Master Appendix MPOS-Master is designed for programming the POS-Keyboard series LPOS, LPOSII, MPOS, playing time control for billiard, magnetic card readers MAG, customer display series LPOS. Basic functions: - configuring devices; - creating keymaps; - update firmware of the microcontroller; - print labels for the keys; - creating a custom character generator for display. Version (4 Aug 2017)
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  • Dimensions - W231 mm; H204 mm; D36 mm. Magnetic card reader width: 45 mm
  • Programmable keys - 64
  • Layout levels - 4
  • Key type - Cherry MX1A cross gold contacts (Germany) or analog
  • Resource of clicks - over 50’000’000 on each key
  • Contamination protection - No
  • Additional power supply - 12 V +/- 5% 4A
  • Supply voltage - 5 V ± 10% (PS/2, USB: port powered) or 8...12 V (RS232: port powered)
  • Average current consumption - 20mA (PS/2, USB), 10mA (RS232)
  • Operating temperature - 0°C...+70°C
  • Storage temperature - -40°C ...+70°C
  • Limited warranty period - 1 year

More info

Programmable LPOS-064-QUADCOM-USB keyboard with 4 virtual COM ports

The LPOS-064-USB-QUADCOM keyboard with 64 programmable buttons in 4 levels is designed to work together with modern miniature computers as part of POS systems.
Miniature computers that are so popular in the retail, and most of the system units of other form factors no longer have built-in RS232 ports, and the equipment still uses COM ports. Automators have to use USB-RS232 converters, solve problems with separate power supply of such peripherals, there is a large number of wires and power supplies at the working place.
In view of these features, the USB programmable keyboard construction was developed, with a USB-> 4xRS232 converter with built-in switching of 5V or 12V power supply to one of the pins of the RS232 port connectors.

POS-system with programmable keyboard LPOS-064-QUADCOM-USB-M12 with 4 built-in COM ports (RS232) and additional power supply on the connectors

The possibility of switching one of the voltages to the COM-port sockets eliminates the need to connect a separate power supply to each of the peripherals.

Programmable LPOS-064-QUADCOM-USB-M12 keyboard with 4 built-in COM ports (RS232) and additional power on the connectors

Voltage switching is carried out by switches separately for each COM port.

Switching additional voltages of COM ports (RS232) in a programmable LPOS-064-QUADCOM-USB keyboard

In Fig. Connections of switching contacts are shown:

LPOS-064_QUADCOM-UASB power supply jumpers

PIN1 and PIN9 - pins 1 and 9 respectively on the RS232 connector

Pin assignment of COM port RS232 9 pin

For example, the following combination of switches:

Commutation of RS232 COM port signals in a programmable LPOS-064-QUADCOM-USB keyboard 

will mean that the power to the pins of the connector is not connected, and the standard DCD and RI modem signals are connected to pins 1 and 9, respectively.

Another example:

Switching of supply voltage and signals of COM port RS232 in the programmable keyboard LPOS-064-QUADCOM-USB 
This combination means that the 9 pin of the RS232 connector is connected to + 5V, and the standard DCD modem signal is connected to pin 1.

After installing the switching switches, it is strongly recommended to sign a label or a label on each side of the case underneath each connector, indicating the power supply voltage connected to each connector. This will in the future avoid damage to the equipment due to a mismatch in the supply voltage or confusion when connecting the periphery.

The location of the connectors on the back of the keyboard:
- Connector for power supply 12V
- RS232 port connectors
- connector for connecting a USB cable from a computer to a USB-> 4xRS232 converter
- connector for connecting the USB cable of the programmable keyboard

Typical POS configuration:
- programmable keyboard with integrated magnetic card reader and with built-in USB-> 4xRS232 converter
- One common 12V power supply for all peripheral equipment that connects to RS232 ports
- system unit
- monitor
- Check printer
- customer display
- Barcode Scanner
- scales (optional)

Installing the USB-> 4xRS232 Converter Drivers
1. Before installing the driver, disconnect the USB cable of the converter USB-> 4xRS232 and run exe from the FTDI_uninstall archive to clear all the ftdi drivers (for the restart it will be necessary to restore the file ftdiun2k.ini from the archive)
2. Connect the converter and select the driver installation from the CDM v2.12.28 WHQL Certified folder (or newer ones)

Drivers are compatible with all Windows operating systems, x32, x64, including Windows10. To download other OS drivers, go to


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Programmable keyboard LPOS-064-QUADCOM-USB

Programmable keyboard LPOS-064-QUADCOM-USB

Programmable keyboard LPOS-064-QUADCOM-USB with 4 virtual COM ports.

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