Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
Smart Home Automation with Linux- P17:I will end on a note of carefree abandon—learn to steal! Once you’ve learned the pieces of the puzzle and how to combine them, there is very little new to invent. Every new idea you discover is a mere permutation of the old ideas. And ideas are free! Every cool feature discussed on TV shows or presented in the brochures or web sites of commercial HA companies can be taken, adapted, and implemented with the information presented here using very little effort | CHAPTER 4 HOME IS HOME Remember that all cables have different flexibilities so when pulling them it is best to be as careful as possible as if they were all fragile. Cat5 cables as a guide are generally stiffer than stereo AV so try not to bend or kink the cable as you pull it through and do so in a slow methodical manner. Don t jerk the cable because this causes friction on the sheath. You might find it beneficial to use a length of drainpipe or exposed trunking to provide a channel in which cables can move and sit. The use of drainpipe also ensures there are as few corners as possible with sharp corners being the worst offenders. There is no trick to the act of pulling cables although doing so with a partner will more than halve the time taken. You should gather them in bunches and tie the ends together with string that is twice as long as the cables. Tie the cable ends to the string middle which allows you to pull them through en masse. You will then be left with half the string running alongside the cable and both ends of string visible. One end of the run will have half the string and the other will have a small amount but that s OK. With this method you can leave the string in place and tie it to new cables for pulling should you need to add new cables. Note You will always need to add new cables. Next I have two words about documentation do some It is best to label everything cables conduits plugs sockets everything. This is also true of your living room and TV installations since your VCR PVR DVD and TV will generally all sport identical black plugs Use several bands of colored tape at each end to distinguish them such as red-red-green-blue. Begin labeling using the color nearest the cable end. You should document these color codes as you go and reference them by taking photographs of the setup depicting the cables connections and wiring inside each box. Although they do not make for very interesting viewing they will become essential if you ever need to .