Unitech MS842 Manual do Utilizador descarregar pdf (Página 22)

USB Transmission Speed Parameters

Use the following parameters to speed USB data transmission:

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USB Polling Interval - When using more current USB systems, use this

parameter to set a lower interval in order to increase data transmission speed.

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Fast HID Keyboard - When configured as a USB HID keyboard device, use this

parameter to increase the data transmission speed of printable (7-bit) ASCII

characters.

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Quick Keypad Emulation - When configured as a USB HID keyboard device,

use this parameter to increase the data transmission speed of a mix of both

printable (7-bit) and full (8-bit) ASCII characters.

Note:

Emulate Keypad and Quick Emulation override Fast HID.

USB Polling Interval

This option speeds data transmission for all USB devices except CDC. Scan a

barcode below to set the polling interval. The polling interval determines the rate at

which data can be sent between the scanner and the host computer. A lower

number indicates a faster data rate. The default value is 8 msec.

Changing the polling interval re-initializes the scanner.

CAUTION

Ensure your host machine can handle the selected data rate. Selecting

a data rate that is too fast for the host can result in lost data.

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Unitech MS842 Manual do Utilizador Página 22