User's Manual

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SPR-8695TUH USB 2.0 HUB KBD
1.3.4 Chattering and bounce
Operation force shall be applied according to the normal operating method at 5V DC,
5mA.There shall be no bounce and chattering within 10msec when it is measured using
a specially prepared tester or a synchroscope.
※ Chattering and bounce are defined in the following diagram :
A:Chattering
B: Bounce
A
B
A
1.3.5 “A” plug USB CABLE
1.3.5.1 Contact terminating assignment.
Contact
Number
Signal
Name
1 VBUS
2 D-
3 D+
4 GND
Shell Shield
1.3.5.2 Cable length: Straight 1.6 M
1.3.6 USB Soft Ware I/F
Compliant with USB Serial Bus Specification (Revision 1.1 September 23, 1998)
Low speed USB standard for keyboard interface
1.3.7 USB HUB
Bus powered USB 2.0 high speed HUB functionality
Two internal USB ports are used for keyboard and smart card reader
Two USB 2.0 high speed downstream ports available for external low power USB devices
The external USB devices that attached on the downstream ports must be low power USB
devices which maximum 100mA of power current
1.4 ENVIRONMENTAL CHARACTERISTIC
1.4.1 Operational ambient temperature and humidity
Temperature : 0 ~ 50℃
Humidity: 85%RH (without condensation)
1.4.2 Storage ambient temperature and humidity
Temperature : -20 ~ 60℃
Humidity: 95%RH