• Replace fuses only with fuses of the same type and rating.• Do not open or remove chassis covers or sheet-metal parts unless instructions areprovided in the hardware documentation for this product. Such an action could causesevere electrical shock.• Do not push or force any objects through any opening in the chassis frame. Such anaction could result in electrical shock or fire.• Avoid spilling liquid onto the J-EX Series switch chassis or onto any switch component.Such an action could cause electrical shock or damage the switch.• Avoid touching uninsulated electrical wires or terminals that have not beendisconnected from their power source. Such an action could cause electrical shock.• Always ensure that all modules, power supplies, and cover panels are fully insertedand that the installation screws are fully tightened.RelatedDocumentationAC Power Electrical Safety Guidelines for J-EX Series Switches on page 238•• General Electrical Safety Guidelines and Warnings for J-EX Series Switches on page 235• Maintenance and Operational Safety Guidelines and Warnings for J-EX Series Switcheson page 226• Laser and LED Safety Guidelines and Warnings for J-EX Series Switches on page 213• Installation Instructions Warning for J-EX Series Switches on page 219• Grounded Equipment Warning for J-EX Series Switches on page 225Definitions of Safety Warning Levels for J-EX Series SwitchesThe documentation for J-EX Series switches uses the following levels of safety warnings(there are two “Warning” formats):NOTE: You might find this information helpful in a particular situation, or youmight overlook this important information if it was not highlighted in a Note.CAUTION: You need to observe the specified guidelines to avoid minor injuryor discomfort to you or severe damage to the J-EX Series switch.WARNING: This symbol alerts you to the risk of personal injury from a laser.WARNING: This symbol means danger. You are in a situation that could causebodily injury. Before you work on any equipment, be aware of the hazards208Dell PowerConnect J-Series J-EX8208 Ethernet Switch Hardware Guide
