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上网电脑除了应按普通电脑的工作环境做好维护工作外,还应重点注意防雷。曾经有一次,经历了一次雷暴雨后,两位同学的Modem和串在Modem上的电话机都被雷击坏了,我串在Modem上的电话机也同时被击坏了。被击坏的Modem的特征是拨号时会出现“no dial tone”的提示,不能拨出,但是硬件检测是正常的。 当你的室外电话线路支路处在雷击区中时,强烈的电磁感应在电话线上感应出一个瞬间的高压,并沿着电话线传入室内,击坏了Modem
Internet computers in addition to ordinary computer work environment should do a good job of maintenance, but also should focus on lightning protection. Once upon a time, after a thunderstorm, the two classmates’ Modems and the telephone sets that were connected to the Modems were struck by lightning and the telephone sets that I had connected to the Modems were damaged at the same time. Defeated Modem is characterized by dialing “no dial tone” prompt, can not dial out, but the hardware test is normal. When your outdoor telephone line branch is in a lightning strike zone, a strong electromagnetic induction induces an instantaneous high voltage on the telephone line, which is transmitted to the room along the telephone line, destroying the Modem