User manual PHILIPS 201B1074

[. . . ] Philips 201B Electronic User's Manual file:///G|/manual/english/201B/index. htm [10/1/1999 4:42:54 PM] Safety & Troubleshooting Safety and Troubleshooting Information Safety Precautions and Maintenance · Troubleshooting · Regulatory Information · Other Related Information Safety precautions and maintenance WARNING: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards, and/or mechanical hazards. Read and follow these instructions when connecting and using your computer monitor: q Disconnect the monitor from the power supply if the monitor is not to be used for an extended period of time. q q q q q Do not attempt to remove the back cover, as you will be exposed to a shock hazard. The back cover should only be removed by qualified service personnel. Do not place objects on top of the monitor cabinet, objects could fall into vents or cover them and prevent proper cooling of the monitor's electronic devices. To avoid the risk of shock or permanent damage to the set, do not expose the monitor to rain or excessive moisture. [. . . ] USB makes necessary resources available without user intervention. q USB eliminates "case angst" -- the fear of removing the computer case to install add-on peripherals. And USB also eliminates adjustment of complicated IRQ settings when installing new peripherals. q USB does away with "port gridlock. " Without USB, PCs are normally limited to one printer, two Com port devices (usually a mouse and modem), one Enhanced Parallel Port add-on (scanner or video camera, for example) and a joystick. More and more peripherals for multimedia computers arrive on the market every day. With USB, up to 127 devices can run simultaneously on a computer. USB permits "hot plug-in. " There's no need to shut down, plug in, reboot and run set-up to install peripherals. And no need to go through the reverse process to unplug a device. q In short, USB transforms today's "Plug-and-Pray" into true Plug-and-Play!Hub A Universal Serial Bus device that provides additional connections to the Universal Serial Bus. Hubs are a key element in the plug-and-play architecture of USB. Hubs serve to simplify USB connectivity from the user's perspective and provide robustness at low cost and complexity. Hubs are wiring concentrators and enable the multiple attachment characteristics of USB. Attachment points are referred to as ports. Each hub converts a single attachment point into multiple attachment points. The architecture supports concatenation of multiple hubs. The upstream port of a hub connects the hub towards the host. Each of the other downstream ports of a hub allows connection to another hub or function. Hubs can detect, attach and detach at each downstream port and enable the distribution of power to downstream devices. Each downstream port can be individually enabled and configured at either full or low speed. The hub isolates low speed ports from full speed file:///G|/manual/english/201B/glossary/glossary. htm (15 of 18) [10/1/1999 4:43:14 PM] Glossary signaling. A hub consists of two portions: the Hub Controller and Hub Repeater. The repeater is a protocol-controlled switch between the upstream port and downstream ports. It also has hardware support for reset and suspend/resume signaling. [. . . ] Industrial Vallejo C. P. 02300, -Mexico, D. F. Phone: (05)-3687788 / 9180050462 Fax : (05)-7284272 PARAGUAY Philips del Paraguay S. A. Avenida Artigas 1519 Casilla de Correos 605 Asuncion Phone: (021)-211666 Fax : (021)-213007 PERU Philips Peruana S. A. Customer Desk Comandante Espinar 719 Casilla 1841 Limab18 Phone: (01)-2412890 Fax : (01)-2412913 URUGUAY Ind. Philips del Uruguay S. A. [. . . ]