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•
Always hold the power plug when inserting or removing the power cable into or from the
outlet. Pulling on the cable can cause the wires to break.
•
Be careful with optical network interfaces. The
board with the label (shown at the right) shows
that a laser is used. Never directly look into the
optical ports.
•
The GR4000 or GS4000 contains a lithium
battery for the real-time clock. Mishandling this
battery may cause overheating, damage, or in
an extreme case, explosion or fire. Do not
remove the battery, attempt to disassemble it,
or expose it to temperatures of over 100°C (212°F). Also, do not incinerate or dispose of
this battery in water.
•
Remove dust on or around the device regularly. Accumulated dust can choke off
ventilation to components, causes fans to fail, and could cause a fire or an electric
shock.
•
Once the device is powered up, an inrush of electrical current occurs. Do not operate
this device during a reduced voltage condition (brownout). Similarly, do not allow the
voltage of a power facility under your control to decrease. A 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 (DIMM), 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).
520-10-026-30X
GS4000 Installation Guide Revision 4.00
Do not look directry into the
optical input/output ports
CLASS 1 LASER PRODUCT
xv
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