Extreme Networks BlackDiamond 10K Series Installation Manual page 30

Site Preparation
Figure 6: Properly installed and bundled cable
Cable managers supporting
and directing cables
Proper
bundling
of cables
Adequate
slack, and
bend radius
SPG_008
Fiber Optic Cable
Fiber optic cable must be treated gently during installation. Every cable has a minimum bend radius, for
example, and fibers will be damaged if the cables are bent too sharply. It is also important not to stretch
the cable during installation. We recommend that the bend radius for fiber optic cable equals 2-inch
(5.08 cm) minimum for each 90 degree turn as shown in Figure 7.
NOTE
Kinks and sharp bends can destroy or impair the cable's ability to convey light pulses accurately from
one end of the cable to the other. Use care in dressing the optical-fiber cables: provide satisfactory
strain relief to support the cable and maintain an adequate bend radius at all cable turns, particularly
where the cable connects to the I/O module.
30 Extreme Networks BlackDiamond 10K-Series Switch Installation Guide