Dell Latitude E7240 Ultrabook Desktop and Notebooks Users Guide - Page 24
eSATA Connector, High Definition Multimedia Interface (HDMI), Network Connectors, 1 Audio
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NOTE: The Low Frequency Effects (LFE) audio channel, found in digital surround sound audio schemes, carries only frequency information (80 Hz and below). The LFE channel drives a subwoofer to provide extremely low bass extension. Systems not using subwoofers can shunt the LFE information to the main speakers in the surround sound setup. Side surround sound connector - Connect additional speakers. RCA S/PDIF connector - Transmit digital audio without the need of analog audio conversion. Optical S/PDIF connector - Transmit digital audio without the need of analog audio conversion. 5.1 Audio The 5.1 refers to the number of audio channels in most surround-sound configurations. A 5.1 audio system uses five main audio channels (front left, front right, center, left surround, and right surround) and one low-frequency audio channel. 7.1 Audio The 7.1 refers to the number of audio channels in high-end surround-sound configurations. A 7.1 audio system uses two additional speakers (rear left and rear right) in combination with the 5.1 audio system. NOTE: The 5.1 or 7.1 audio may not be supported on all computers. NOTE: On computers with a discrete sound card, connect the speakers to the connectors on the card. eSATA Connector eSATA is a bus technology designed to connect external mass storage devices, such as hard drives and optical drives, to your computer. eSATA provides considerably higher throughput as compared to USB 2.0 or FireWire 800. eSATA cables can be up to 2 meters long. eSATA ports can be standalone or can be present in the form of an eSATA/USB combo port. High Definition Multimedia Interface (HDMI) HDMI transmit audio and video signals in a single digital interface. HDMI connects audio and video sources such as set-top boxes, DVD players, Blu-ray Disc players, computers, and video game consoles to compatible digital audio devices, such as computers, monitors, video projectors, and digital televisions. Advantages of HDMI • Delivers high-quality audio and video without the loss in quality due to the conversion or compression of a video or audio signal. • Delivers smoother and sharper pictures with a distinct reduction in video noise. Sound is crisp and distortion free. • Since it is a digital interface, HDMI is compatible with fixed-pixel displays such as LCDs, plasma displays, and projectors. Network Connectors Network connector (RJ-45) NOTE: The network connector is slightly larger than the modem connector. To avoid damaging the computer, do not plug a telephone line into the network connector. Connects the computer to a network. The two lights next to the connector indicate status and activity for wired network connections. 24 Drives and Ports
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