Dell U2311H User's Guide - Page 11

19 DP_PWR Return 20 +3.3V DP_PWR Plug and Play Capability You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides the computer system with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so the system can configure itself and optimize the monitor settings. Most monitor installations are automatic; you can select different settings if desired. For more information about changing the monitor settings, see Operating the Monitor. Universal Serial Bus (USB) Interface This section gives you information about the USB ports that are available on the left side of your monitor. NOTE: This monitor supports High-Speed Certified USB 2.0 interface. Transfer speed High speed Full speed Low speed Data Rate Power Consumption 480 Mbps 2.5W (Max., each port) 12 Mbps 2.5W (Max., each port) 1.5 Mbps 2.5W (Max., each port) USB Upstream Connector Pin Number 4-pin Side of the Connector 1 DMU 2 VCC 3 DPU 4 GND USB Downstream Connector Pin Number 1 2 3 4 4-Pin Side of the Signal Cable VCC DMD DPD GND USB Ports l 1 upstream - back l 4 downstream - 2 on back; 2 on left side NOTE: USB 2.0 functionality requires a USB 2.0-capable computer NOTE: The monitor's USB interface works only when the monitor is on or in power save mode. If you turn off the monitor and then turn it on, the attached peripherals may take a few seconds to resume normal functionality. LCD Monitor Quality and Pixel Policy