Juniper QFabric QFX3008-I, Manual, Page: 299 / 472

To interconnect two Virtual Chassis for QFabric system control plane redundancy (see
Figure 80 on page 271 ):
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.
1.
If the fiber-optic cable connector is covered by a rubber safety cap, remove the cap.
Save the cap.
2.
Remove the rubber safety cap from the SFP+ optical transceiver in port 0 on member 0
of the first Virtual Chassis. Save the cap.
3.
Insert the cable connector into the optical transceiver (see Figure 81 on page 273 ).
Figure 81: Connecting a Fiber-Optic Cable to an Optical Transceiver
Installed in an EX Series Switch
g027016
Fiber-optic cable
Transceiver
4.
If the connector at the other end of the fiber-optic cable is covered by a rubber safety
cap, remove the cap. Save the cap.
5.
Remove the rubber safety cap from the SFP+ optical transceiver in port 0 on member 0
of the second Virtual Chassis. Save the cap.
6.
Insert the cable connector into the optical transceiver.
7.
Repeat Step 1 through Step 6 for each uplink module port, following the port
assignments in Table 63 on page 272 .
8.
Secure the cables so that they are not supporting their own weight. Place excess cable
out of the way in a neatly coiled loop. Placing fasteners on a loop helps cables maintain
their shape.
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.
Do not let fiber-optic cables hang free from the connector. Do not allow
fastened loops of cables to dangle, which stresses the cables at the
fastening point.
273 Copyright © 2012, Juniper Networks, Inc.
Chapter 22: Cabling the QFabric Switch