Zebra MP6000 Informations techniques Page 63

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USB INTERFACE BAR CODES 1 - 45
USB Transmission Speed Parameters
Use the following parameters to speed USB data transmission:
USB HID Polling Interval - When using more current USB systems, use this parameter to set a lower
interval in order to increase data transmission speed.
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.
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.
USB HID Polling Interval
This option speeds data transmission for all USB devices except CDC. Scan the appropriate bar code 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.
Options:
1 msec
2 msec
3 msec
4 msec
5 msec
6 msec
7 msec
* 8 msec.
Changing the polling interval re-initializes the scanner.
1 msec
NOTE Enabling Emulate Keypad on page 1-32 or Quick Keypad Emulation on page 1-56 overrides Fast HID
Keyboard.
CAUTION Ensure the host 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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