Cisco 3845 Hardware Guide - Page 32
Safety with Electricity - fan replacement
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UPC - 746320981420
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Safety Recommendations Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement 1029 Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030 Warning To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the weight of the unit. Statement 1032 Warning This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260. Incorrectly connecting this equipment to a general-purpose outlet could be hazardous. The telecommunications lines must be disconnected 1) before unplugging the main power connector or 2) while the housing is open, or both. Statement 1043 Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040 Warning To prevent the system from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 40 deg. C Statement 1047 Safety with Electricity Follow these guidelines when working on equipment powered by electricity: Warning Read the installation instructions before connecting the system to the power source. Statement 1004 • Locate the emergency power-off switch in the room in which you are working. Then, if an electrical accident occurs, you can quickly turn off the power. • Disconnect all power before doing the following: - Installing or removing a router - Working near power supplies • Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, frayed power cords, and missing safety grounds. • Do not work alone if hazardous conditions exist. • Never assume that power is disconnected from a circuit. Always check. Preinstallation Requirements and Planning for Cisco 3800 Series Routers 2 OL-5967-01
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