Fiber Optic Cable; Cable Distances - Extreme Networks Summit X450a-24tDC Hardware Installation Manual

Fiber Optic Cable

Fiber optic cable must be handled carefully 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
equal 2 inches (5.08 cm) minimum for each 90-degree turn as shown in
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 50: Bend Radius for Fiber Optic Cable
Optical fiber cable

Cable Distances

Table 13 shows cable media types and maximum distances that support reliable transmission in
accordance with international standards except where noted.
Table 13: Media Types and Maximum Distances
Standard
1000BASE-SX
(850 nm optical
window)
1000BASE-LX
(1300 nm optical
window)
1000BASE-LX70
(1550 nm optical
window)
Summit Family Switches Hardware Installation Guide
Minimum
2-in. (5.08-cm)
radius
in 90∞ bend
90∞
Media Type
50/125 μm multimode fiber
50/125 μm multimode fiber
62.5/125 μm multimode fiber
62.5/125 μm multimode fiber
50/125 μm multimode fiber
50/125 μm multimode fiber
62.5/125 μm multimode fiber
10/125 μm single-mode fiber
10/125 μm single-mode fiber*
10/125 μm single-mode fiber
Evaluating and Meeting Cable Requirements
Figure 50.
SPG_002
Mhz•Km Maximum Distance
Rating (Meters)
400 500
500 550
160 220
200 275
400 550
500 550
500 550
– 5,000
– 10,000
– 70,000
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