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2.2
USB 2.0 Interface
The RTM806X features two USB connectors on the faceplate.
USB features include:
•Capability to daisy chain as many as 127 devices per interface
•Fast bi-directional
•Isochronous/asynchronous interface
•480 MBPS transfer rate
•Standardization of peripheral interfaces into a single format
•Backward compatible with USB 1.1 devices
USB supports Plug and Play and hot-swapping operations (OS level). These features allow USB devices to be
automatically attached, configured and detached, without reboot or running setup.
Table 2-1:USB Connector Pinout
Pin
Signal
1
VCC
2
DATA-
3
DATA+
4
GND
Signal Path:
The USB Ports are available through the RTM face plate (J2).
2.3
SAS
The SAS connections are only offered through the RTM. The controller is located on the front board and sends
the four signals from the PCH to the RTM through the RTM connectors. The SAS signals are accessible
through:
• Two HDD mounted on RTM806X
• Two external links through the mini-SAS connector
8
RTM806X
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