Juniper PTX5000 Quick Start Manual page 23

CAUTION:
smaller than a few inches in diameter can damage the cable and cause problems that
are difficult to diagnose.
CAUTION:
fastened loops of cable to dangle, which stresses the cable at the fastening point.
Figure 12: Connecting PIC Cables
Avoid bending fiber-optic cable beyond its minimum bend radius. An arc
Do not let fiber-optic cable hang free from the connector. Do not allow
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