Safety Precautions - Dell EMC PowerEdge MX7000 Field Service Manual

9. Management Module 2
11. Slot for Fabric C1
NOTE: For more information about the ports and connectors, see

Safety precautions

Follow the safety precautions that are described in the following sections during an installation or a disassembly/reassembly
procedure:
● Power off the system and all attached peripherals.
● Disconnect the system and all attached peripherals from AC or DC power.
● Disconnect all network cables from the system.
● Use a wrist grounding strap and mat when working inside any system to avoid electrostatic discharge (ESD) damage.
● After removing a system component, carefully place the removed component on an antistatic mat.
● Wear shoes with nonconductive soles or rubber soles to help reduce the risk of electrical shock or seriously injured in an
electrical accident.
Standby power
When applicable Dell products that feature a standby power mode, must be unplugged before the system is serviced.
NOTE: Systems that incorporate standby power, continue to use power even when they are powered off. For example,
standby power enables the system to be powered on remotely with the wake on LAN feature enabled, suspended into sleep
mode, or other advanced power management features.
After you unplug a system and before you remove components, wait approximately 30 to 45 seconds to allow the charge to
drain from the circuits.
Bonding
Bonding is a method of connecting two or more grounding conductors to the same electrical potential. This method requires the
Field Service ESD kit. When connecting a bonding wire, always ensure that it is connected to a bare metal system and never
to a painted or nonmetal surface. The Wrist Strap should be secured to your skin. Ensure that you remove all jewelry such as
watches, bracelets, or rings before bonding yourself and the equipment.
Figure 7. Proper bonding method
Electrostatic discharge
Electrostatic discharge (ESD) is a major concern when you handle sensitive components such as expansion cards, processors,
memory DIMMs, and system board. A slight charge can result in damaging the circuits on these components causing
intermittent problems or shortening the life span.
10. Management Module 1
Technical specifications.
Field service information 13