Hitachi GR4000 Series Safety Manual page 13

brownout condition also affects the other equipment besides the GR4000 or
GS4000 if connected to the same power facility.
Before attaching or detaching a power cable, make sure that the switch of the
targeted power supply is turned OFF.
When replacing a fan while powered on, it must be done within one minute after
being detached. If replacement takes more than one minute, the temperature
inside the device will start to rise and could affect other components.
When carrying or packing the device and its optional modules, wear a wrist strap
to prevent static electricity. Without a wrist strap, the device might be damaged
by static electricity.
When installing a Packet Routing Unit
(PRU for the GR4000) or Packet Switching
Unit (PSU for the GS4000) into the
chassis, open its levers as shown in the
figure at the right. If you try to install it
with its levers closed or open too wide, the
levers could be damaged when being
inserted into the slot.
Whenever you use the GR4000 or GS4000
without one or more of its option
modules, attach blank panels in place of
the option modules. Otherwise, air will
not flow properly through the device,
which could cause the temperature inside to rise beyond what its safe operating
limit.
When carrying or packing optional modules, such as NIFs, BCUs, PRUs, PSUs,
memory modules, memory cards, and power supplies, do not touch the electronic
components or circuitry on the solder side. To avoid damage, always store these
boards and components in approved anti-static bags.
The option modules for the GR4000 or GS4000 should be mounted only into
those devices. Option modules marked with "UL Listed Accessory" indicate that
they have won Underwriters Laboratories approval on the condition that they are
mounted into the UL-approved devices.
Do not put objects on a Packet Routing (Switching) Unit.
Doing this might damage the outer frame of the module.
Comply with the instructions written on the label
attached to the module (see right).
Do not hold the area marked with
right when mounting or removing a PRU from the
GR4000 or a PSU from the GS4000. Doing so could
damage the outer frame of the PRU or PSU, and a NIF could be damaged if you
try to insert it into a PRU or PSU with a damaged outer frame.
Do not place the device in direct
sunlight or near other heat sources
that may cause damage.
If the device is placed near a radio or
TV, they might affect each other in
an unfavorable way. If you hear the
burst of noise on a TV or a radio, do
the following:
Place the device as far away from
a TV or a radio as possible.
Adjust the antenna of a TV or a
radio to another direction.
Use a different AC outlet for a TV or radio from that used for the GR4000 or
GS4000.
GR4K-GA-0001
Rev. 1.20
L e v e rs
No Pile Up
Not For Handling
in the figure at
Safety Guide
Caution
9