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To prevent condensation, unpack the device at least half an hour after you move the device from a
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location below 0°C (32°F) to the equipment room, and power on the device at least 2 hours after
you move the device from a location below 0°C (32°F) to the equipment room.
Electrical safety
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Carefully examine your work area for possible hazards, such as moist floors, ungrounded power
extension cables, or missing safety grounds.
Locate the emergency power-off switch in the room before installation. Shut off the power
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immediately if an accident occurs.
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Unplug all the external cables (including power cables) before moving the chassis.
Do not work alone when you operate the device with the device powered on.
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Always check that the power has been disconnected when you perform operations that require the
device to be powered off.
Laser safety
WARNING!
Do not stare into any fiber port when the device is powered on. The laser light emitted from the optical
fiber might hurt your eyes.
Before you disconnect the fiber connector, execute the shutdown command in interface view to
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disable the optical source.
Install the dust covers to the optical fiber connector to avoid connector damage.
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Examining the installation site
The device can only be used indoors. To ensure normal operation and a long lifespan for your device,
the installation site must meet the requirements in this section.
Temperature and humidity
Maintain the temperature and humidity in the equipment room at acceptable levels.
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Continuous high relative humidity can cause poor insulation, electricity creepage, and metal
corrosion and can change the mechanical property of materials.
Continuous low relative humidity can cause washer contraction and ESD and introduce problems
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such as loose captive screws and circuit failure.
High temperature can accelerate the aging of insulation materials and significantly lower the
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reliability and lifespan of the device.
To ensure correct operation of the device, the equipment room must meet the temperature and humidity
requirements listed in
Table
1.
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