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INSTALLATION REQUIREMENTS/SPECIFICATIONS
REQUIREMENTS/SPECIFICATIONS
This chapter describes cabling requirements, network guidelines, and
operating specifications for the TRFOT-2. Ensure that you read this
chapter before you install the TRFOT-2. Failure to follow these
guidelines could result in unsatisfactory network performance.
2.1 FIBER OPTIC CABLE SPECIFICATIONS
Multimode fiber optic link segments must meet the following
requirements:
Cable Type
The TRFOT-2 requires the following multimode fiber optic media:
•
50/125 m fiber optic cabling.
•
62.5/125 m fiber optic cabling.
•
100/140 m fiber optic cabling.
Attenuation
The fiber optic cable must be tested with a fiber optic attenuation test
set that is adjusted for an 850 nm wave-length. This test verifies that
the signal loss in a cable is within an acceptable level:
•
13.0 dB or less for 50/125 m fiber cable segment.
•
16.0 dB or less for 62.5/125 m fiber cable segment.
•
19.0 dB or less for 100/140 m fiber cable segment.
Fiber Optic Budget
Fiber optic budget is the combination of the optical loss due to the
fiber optic cable, in-line splices, and fiber optic connectors. When
determining the maximum fiber optic cable length, the fiber optic
budget should be calculated and considered before fiber optic cable
runs are incorporated in any network design.
Fiber Length
The maximum allowable fiber optic cable length is 2 km.
CHAPTER 2
INSTALLATION
Page 2-1
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