INSTALLATION REQUIREMENTS/SPECIFICATIONS
Page 2-1
CHAPTER 2
INSTALLATION
REQUIREMENTS/SPECIFICATIONS
This chapter describes cabling requirements, network guidelines, and
operating specifications for the TRFOT-3. Ensure that you read this
chapter before you install the TRFOT-3. Failure to follow these
guidelines could result in unsatisfactory network performance.
2.1
FIBER OPTIC CABLE SPECIFICATIONS
Single mode fiber optic link segments must meet the requirements
listed below:
Attenuation
The fiber optic cable must be tested with a fiber optic attenuation test
set that is adjusted for a 1300 nm wavelength. This test verifies that
the signal loss in a cable is within an acceptable level of 10.0 dB or less
for any given fiber optic cable segment.
Fiber Optic Budget and Propagation Delay
Fiber optic budget is the combination of the optical loss due to the
fiber optic cable, in-line splices, and fiber optic connectors.
Propagation delay is the amount of time it takes data to travel from
the sending device to the receiving device. When determining the
maximum fiber optic cable length, the fiber optic budget (total loss of
10.0 dB or less between stations) and total network propagation delay
should be calculated and considered before fiber optic cable runs are
incorporated in any network design.
Table 2-1. Single Mode Fiber Optic Cable Requirements
Cable Type
Single Mode 8.3/125
µ
m fiber optic
Wavelength
1300 nm Typical
1270 nm Minimum
1330 nm Maximum
Maximum Cable Length
10 km
Fiber Optic Budget Loss
10 db
