that the bend radius for ber optic cables is equal to at least 5 cm (2 in) for each
90-degree turn as shown in Figure 18.
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 ber 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 18: Bend Radius for Fiber Optic Cable
1 = Minimum 5 cm (2 in) radius in 90° bend
Cable Distances and Types
Table 18 on page 38 shows one example of cable media types and maximum
distances that support reliable transmission in accordance with international standards
(except where noted). Refer to
Extreme Networks Pluggable Transceivers Installation
Guide
for descriptions of optics and cables, as well as a complete list of supported cable
lengths.
Refer to
Extreme Hardware/Software Compatibility and Recommendation Matrices
for
a list of the cable types that are compatible with your equipment.
Table 18: Cable Distances and Types
Standard Media Type MHz•km
Rating
Maximum
Distance (Meters)
1000BASE-SX
(850nm optical window)
50/125 µm multimode ber 400 500
50/125 µm multimode ber 500 550
62.5/125 µm multimode ber 160 220
62.5/125 µm multimode ber 200 275
Install Cable Preparing to Install
38 VSP 4900 Series Switches: Hardware Installation Guide
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