You can use Quad Small Form-Factor Pluggable Plus (QSFP+) transceivers for ports 1 to 56, QSFP+ breakout cables with four
SFP+ transceivers to connect to server hosts for ports 1 to 16. You can use QSFP28 transceivers for ports 57 to 64. For ports
1 to 32, you must install transceivers right-side up (Cisco transceiver labels on the bottom). For ports 33 to 64, which are
upside down, you must install transceivers upside down (Cisco transceiver labels on the top)).
For information about the transceivers currently being used with the switch, use the show inventory all command.
Prevent damage to the fiber-optic cables that can separate from their cables. Keep the transceivers disconnected from their
fiber-optic cables when installing the transceiver in the line card. Before removing such a transceiver from the switch, remove
the cable from the transceiver.
To maximize the effectiveness and life of your transceivers and optical cables, do the following:
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Wear an ESD-preventative wrist strap that is connected to an earth ground whenever handling transceivers. The switch is typically
grounded during installation and provides an ESD port to which you can connect your wrist strap.
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Do not remove and insert a transceiver more often than is necessary. Repeated removals and insertions can shorten its useful
life.
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Keep the transceivers and fiber-optic cables clean and dust free to maintain high signal accuracy and to prevent damage to
the connectors. Contamination causes increased attenuation (loss of light), and should be kept below 0.35 dB.
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Clean these parts before installation to prevent dust from scratching the fiber-optic cable ends.
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Clean the connectors regularly; the required frequency of cleaning depends upon the environment. In addition, clean connectors
if they are exposed to dust or accidentally touched. Both wet and dry cleaning techniques can be effective; refer to your
site's fiber-optic connection cleaning procedures.
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Do not touch the ends of connectors. Touching the ends can leave fingerprints and cause other contamination.
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Inspect routinely for dust and damage. If you suspect damage, clean and then inspect fiber ends under a microscope to determine
if damage has occurred.
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To minimize the chance of damaging transceivers when installing them, slide them gently into their switch slots. Never force
transceivers all the way into the slots. If the transceiver stops part way into the slot, it might be upside down. Remove
the transceiver before turning it over and reinstalling it. If positioned correctly, the transceiver slides all the way into
the slot and clicks when fully installed.
Note |
For slots 1 to 32, position the transceiver right-side up (Cisco transceiver label on the bottom) when sliding it into the
switch slot. For slots 33 to 64, the ports are upside down and you must turn the transceiver upside down (Cisco transceiver
label on top) before installing it into the slot.
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Warning |
Statement 1051—Laser Radiation
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly
with optical instruments.
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Warning |
Statement
1053—Class 1M Laser Radiation
Class 1M laser
radiation when open. Do not view directly with optical instruments.
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Warning |
Statement 1055—Class I and Class 1M Laser
Class I (CDRH) and Class 1M (IEC) laser products.
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Warning |
Statement
1056—Unterminated Fiber Cable
Invisible laser
radiation may be emitted from the end of the unterminated fiber cable or
connector. Do not view directly with optical instruments. Viewing the laser
output with certain optical instruments (for example, eye loupes, magnifiers,
and microscopes) within a distance of 100 mm may pose an eye hazard.
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