Juniper QFX10002 Hardware Manual page 140

• A dust cover to cover the port or a replacement transceiver
The transceivers for Juniper Networks devices are hot-removable and hot-insertable field-replaceable
units (FRUs). You can remove and replace them without powering off the device or disrupting device
functions.
NOTE: After you remove a transceiver, or when you change the media-type configuration, wait
for 6 seconds for the interface to display the operational commands.
Figure 51 on page 132 shows how to remove a QSFP+ transceiver. The procedure is the same for all
types of transceivers except the QSFP28 and CFP transceivers. Note that this procedure is the same for
SFP+ and SFP28 transceivers which will be used in EX4100.
To remove a transceiver from a device:
1. Place the antistatic bag or antistatic mat on a flat, stable surface.
2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end
of the strap to the ESD point on the switch.
3. Label the cable connected to the transceiver so that you can reconnect it correctly.
LASER WARNING: Do not look directly into a fiber-optic transceiver or into the ends
of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected to
transceivers emit laser light that can damage your eyes.
LASER WARNING: Do not leave a fiber-optic transceiver uncovered except when
inserting or removing a cable. The rubber safety cap keeps the port clean and protects
your eyes from accidental exposure to laser light.
CAUTION: Do not bend fiber-optic cables beyond their minimum bend radius. An arc
smaller than a few inches in diameter can damage the cables and cause problems that
are difficult to diagnose.
4. Remove the cable connected to the transceiver (see
transceiver and the end of each fiber-optic cable connector with a rubber safety cap immediately
after disconnecting the fiber-optic cables.
5. If there is a cable management system, arrange the cable in the cable management system to prevent
it from dislodging or developing stress points. Secure the cable so that it does not support its own
Disconnect a Fiber-Optic Cable
131
). Cover the