Unitech MS842N, User Manual

Page: 22 / 132

Enter Setup
** Exit Setup 14
Example: Supposing the Emulate Numeric Keypad feature is enabled:
if Num Lock on the Host is ON, “A4.5” is transmitted as “A4.5”;
if Num Lock on the Host is OFF, “A4.5” is transmitted as follows:
1. “A” is sent as is because it is not included in numeric keypad;
2. “4” is sent as the function key “Cursor Move to Left”;
3. “.” is sent as the function key “Delete After the Cursor”;
4. “5” is not sent as it does not correspond to any function key.
USB COM Port Emulation
If you connect the engine to the Host via a USB connection, the USB COM Port Emulation feature allows the Host to
receive data in the way as a serial port does. However, you need to set communication parameters on the engine to match
the Host requirements.
USB COM Port Emulation
HID-POS
The HID-POS interface is recommended for new application programs. It can send up to 56 characters in a single USB
report and appears more efficient than keyboard emulation.
Features:
HID based, no custom driver required.
Way more efficient in communication than keyboard emulation and traditional RS-232 interface.
Note: HID-POS does not require a custom driver. However, a HID interface on Windows 98 does. All HID interfaces
employ standard driver provided by the operating system. Use defaults when installing the driver.
HID-POS