
Advanced System Use & Maintenance
User Manual
ApplianceStor
50
Rev. 1, November 2011
61
Figure 84-SAS connectors
Hard disk activity LED connector (4-pin HDLED1)
This LED connector is for the storage add-on card cable connected to the SATA or SAS add-on
card. The read or write activities of any device connected to the SATA or SAS add-on card causes
the front panel LED to light up.
Figure 85-Hard disk activity LED
USB connector (10-1 pin USB34, USB56; A-Type USB7)
These connectors are for USB 2.0 ports. Connect the USB module cables to connectors USB34
and USB56, then install the modules to a slot opening at the back of the system chassis. These
USB connectors comply with USB 2.0 specification that supports up to 480 Mbps connection
speed.
Figure 86- USB connector