Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 30)

11 NC N/A No connection
12 DDC data out O Monitor detect data
13 HSYNC O Horizontal synchronization
14 VSYNC O Vertical synchronization
15 DDC clock out O Monitor detect clock
Shell N/A N/A Chassis ground
USB Connectors
Your system contains a single USB connector on the front control panel, and two USB connectors on the rear panel for
attaching USB-compliant devices. USB devices are typically peripherals such as mice, keyboards, and system speakers.
NOTICE: Do not attach a USB device or a combination of USB devices that draw a maximum current over 500 mA per
channel on +5 V. Attaching devices that exceed this threshold may cause the USB ports to shut down. See the
documentation that accompanied the USB devices for their maximum current ratings.
If you reconfigure your hardware, you may need pin number and signal information for the USB connectors. Figure B-7
illustrates the USB connector and Table B-6 defines the pin assignments and interface signals for the USB connector.
Figure B-7. Pin Numbers for the USB Connector
Table B-6. USB Connector Pin Assignments
Pin Signal I/O Definition
1 Vcc N/A Supply voltage
2 DATA- I/O Data
3 DATA+ I/O Data
4 GND N/A Signal ground
Integrated NIC Connectors
Your system has two integrated 10/100/1000–Mbps NICs. The 10/100/1000-Mbps NICs provide faster communication
between servers and workstations and efficient utilization of host resources, freeing more of the system resources for other
applications. Both NICs support 10 Base-T, 100 Base-TX, and 1000 Base-T Ethernet standards.
Both NICs include a Wake On LAN feature that enables the system to be started by a special LAN signal from a systems
management console. Wake On LAN provides remote system setup, software downloading and installation, file updates, and
asset tracking after hours and on weekends when LAN traffic is typically at a minimum.
See " Network Cable Requirements " for information on cable, connector, and network requirements.
Embedded Remote Access Ethernet Connector
Your system contains an embedded remote access controller (RAC). The RAC provides remote access management
capabilities for your system and allows you to remotely manage and monitor the system through a network, even when the
system is down. Communication with the RAC is provided through the embedded remote access Ethernet connector.