S320 OCS Hardware User Guide
Doc. Part No. 460167-00
May 27, 2015
Rev. B7
Page 14 of 46
To reduce the possibility of ESD damage, most equipment racks provide grounding jacks into
which anti-static wrist straps can be plugged. Be sure to observe the following precautions
whenever working with the S320 OCS:
Always wear a tested and verified grounded wrist strap to prevent ESD, making sure
the wrist strap is plugged into a grounding jack.
Observe warning labels on bags and cartons. Whenever possible, do not remove a
module from its antistatic packaging until it is to be installed in the rack.
Always store and transport any module in antistatic packaging.
Keep all static-generating materials such as plastic foil wrappers, other plastics,
Styrofoam and cardboard containers away from the S320 OCS.
Maintain ambient humidity within the 20% to 85% limits specified for operation of
the S320 OCS.
2.3
Optical Connections
2.3.1
Keeping Fiber Connectors Clean
Optical fiber connectors require special handling to mitigate contamination from dust and
debris that could increase insertion loss. Contamination during connection of the connector
surface perpendicular to the light propagation can increase insertion loss and back-reflection.
Once a pair of clean connectors is mated, however, it is unlikely that further contamination will
occur until the next time the fibers are disconnected.
To minimize the effects of particulate contamination, the surface of the connector end must be
cleaned before connection. This cleaning operation is critical, as an improperly prepared optical
surface can cause loss of performance.
2.3.2
Optical Fiber Bend Radius
The Minimum Bend Radius (MBR) for optical fiber cables used on the S320 OCS is 1 inch (25 mm).
An optical fiber or fiber-optic cable should not be bent below the MBR. Bending a fiber below the
MBR can result in damage to the fiber. Improper handling of optical fiber and cables can have
detrimental effects on S320 OCS performance. Observe the following precautions for handling
fiber and cable:
Keep optical surfaces clean; only trained personnel should clean optical cables
and connectors.
