Extreme Networks E4G Series, Hardware Installation Manual

Page: 40 / 142

Chapter 2: Site Preparation
E4G Series Routers Hardware Installation Guide
40
Figure 14: Properly Installed and Bundled Cable for an E4G-200 series Router
Fiber Optic Cable
Fiber optic cable must be handled carefully during installation. Every cable has a minimum bend
radius, example, and fibers will be damaged if the cables are bent too sharply. It is also important not to
stretch the cable during installation. Extreme Networks recommends that the bend radius for fiber optic
cable equal 2 inches (5.08 cm) minimum for each 90-degree turn as shown in
Figure 15 on page 40 .
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.
Figure 15: Bend Radius for Fiber Optic Cable
CSR_029
SPG_002
90°
1
1 = Minimum 2-inch (5.08 cm) radius in 90° bend