• Evaluated to the TN power system.• Canada—Canadian Electrical Code, Part 1, CSA C22.1.• Locate the emergency power-off switch for the room in which you are working so thatif an electrical accident occurs, you can quickly turn off the power.• Make sure that grounding surfaces are cleaned and brought to a bright finish beforegrounding connections are made.• Do not work alone if potentially hazardous conditions exist anywhere in your workspace.• Never assume that power is disconnected from a circuit. Always check the circuit beforestarting to work.• Carefully look for possible hazards in your work area, such as moist floors, ungroundedpower extension cords, and missing safety grounds.• Operate the J-EX Series switch within marked electrical ratings and product usageinstructions.• To ensure that the J-EX Series switch and peripheral equipment function safely andcorrectly, use the cables and connectors specified for the attached peripheralequipment, and make certain they are in good condition.You can remove and replace many switch components without powering off ordisconnecting power to the switch, as detailed elsewhere in the hardware documentationfor this product. Never install equipment if it appears damaged.RelatedDocumentationGeneral Safety Guidelines and Warnings for J-EX Series Switches on page 207•• AC Power Electrical Safety Guidelines for J-EX Series Switches on page 238Prevention of Electrostatic Discharge Damage on J-EX Series SwitchesSwitch components that are shipped in antistatic bags are sensitive to damage fromstatic electricity. Some components can be impaired by voltages as low as 30 V. Youcan easily generate potentially damaging static voltages whenever you handle plasticor foam packing material or if you move components across plastic or carpets. Observethe following guidelines to minimize the potential for electrostatic discharge (ESD)damage, which can cause intermittent or complete component failures:236Dell PowerConnect J-Series J-EX8208 Ethernet Switch Hardware Guide
