Laser safety precautions include two aspects:
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Bodily injury
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Device damage
Human Body Injury
WARNING
The laser sent by the optical interface board is invisible infrared ray. While maintaining the
device, protect your eyes from the laser; otherwise, permanent injury to your eyes may occur.
Device Damage
To prevent damage to the device, pay attention to the following:
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If the optical interface on the device or on the patch cord is not in use, cover the optical
interface with a dust-proof cap.
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When you need to remove the patch cord connecting to the optical interface that is in use,
cover the optical interface and the patch cord connector with dust-proof caps.
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When you perform the loopback test on the optical interface with the patch cord, you must
use an attenuator to protect the optical transceiver from the received optical power.
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When you use the optical time domain reflectometer (OTDR), you need to disconnect the
patch cord between the peer device and the local device to protect the optical transceiver
from the optical power.
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Do not remove or insert unnecessarily the optical transceiver that connects to fibers.
1.4 Using Optical Fibers
You should use optical fibers properly to ensure the normal running of the device; otherwise,
bodily injury or device damage may be caused.
DANGER
The laser beams of the optical interface board or inside the optical fibers may injure your eyes!
When you install and maintain the optical interface board and the optical fiber, keep your eyes
away from, and never stare into the optical interface or the optical fiber connector.
Cleaning Optical Fiber Connectors and Optical Interfaces
The optical fiber connectors and the optical interfaces of the laser must be cleaned with special
cleaning tools and materials listed as follows:
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Special cleaning solvent. Isoamylol is preferred, propyl alcohol is the next, alcohol is not
recommended and formalin is forbidden
1 Safety Precautions
NetBackup 5200
Routine Maintenance
1-4
Symantec Corporation
Issue 01 (2010-08-30)
