Netgear RN32263E – ReadyNAS 3220 2U 12-Bay 6x3TB Enterprise Drives Hardware Manual

Installing the on-board battery upside down, which reverses its polarities, creates a
risk of explosion. Take care to install the battery correctly.

Only trained service technicians can replace the self-resetting PTC (positive temperature coefficient)
fuses on the main board, using only new fuses that are the same as or equivalent to the ones being
replaced. Contact technical support for details and support.

Electrostatic discharge (ESD) is generated by two objects with different electrical charges coming into contact
with each other. An electrical discharge is created to neutralize this difference, which can damage electronic
components and printed circuit boards. The following measures are generally sufficient to neutralize this
difference before contact is made to protect your equipment from ESD:

Use a grounded wrist strap designed to prevent static discharge.

Keep all components and printed circuit boards (PCBs) in their antistatic bags until ready for use.

Touch a grounded metal object before removing the board from the antistatic bag.

Do not let components or PCBs come into contact with your clothing, which might retain a charge even
if you are wearing a wrist strap.

Handle a board by its edges only; do not touch its components, peripheral chips, memory modules, or
contacts.

When handling chips or modules, avoid touching their pins.

Put the main board and peripherals back into their antistatic bags when not in use.

For grounding purposes, make sure that your computer chassis provides excellent conductivity between
the power supply, the case, the mounting fasteners, and the main board.

After accessing the inside of the system, close the system back up and secure it to the rack unit with
the retention screws after ensuring that all connections were made.

Follow these rack-mount precautions:

Ensure that the leveling jacks on the bottom of the rack are fully extended to the floor with the full weight
of the rack resting on them.

In single-rack installations, make sure that stabilizers are attached to the rack. In multiple-rack installations,
make sure that the racks are coupled together.

Always make sure that the rack is stable before extending a component from the rack.

Extend only one component at a time; extending two or more simultaneously might cause the rack to
become unstable.

Determine the placement of each component in the rack before you install the rails.