Motorola DS9208 Product Reference Guide

USB Interface 6 - 15
USB Transmission Speed Parameters
Use the following parameters to speed USB data transmission:
• USB 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 Polling Interval
This option speeds data transmission for all USB devices except CDC. Scan a bar code 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.
Changing the polling interval re-initializes the scanner.
NOTE Enabling Emulate Keypad on page 6-11 or Quick Keypad Emulation on page 6-17 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.
1 msec
2 msec

Motorola DS9208 Specifications

General

Drop Specification	Withstands multiple 5 ft./1.5 m drops to concrete
Scanning Technology	Imager
Tilt Angle	± 65°
Skew Angle	± 60°
Connectivity	USB, RS232, Keyboard Wedge
Decode Capability	1D, 2D and PDF417
Light Source	650nm visible laser diode
Operating Temperature	32° to 104° F/0° to 40° C
Print Contrast	25% minimum reflectance
Pitch Angle	60°
Storage Temperature	-40° to 158° F (-40° to 70° C)
Humidity	5% to 95% relative humidity, non-condensing
Electrical Safety	UL
EMC	FCC Part 15 Class B
Cable Length	6 ft (1.8m)
Power Consumption	2.5 Watts (500mA @ 5V)
Scan Pattern	Omnidirectional