EST EST3X - Fiber Optic Cable Worksheet

Appendix A: System calculations
EST3X Technical Reference Manual 255
Fiber optic cable worksheet
The fiber optic cable worksheet should be used to verify that the light attenuation
factors do not exceed the fiber optic budget for any fiber optic cable segment.
Notes
• The contractor installing the fiber optic cable provides items A, B, and D.
• Fiber optic budget must be greater than the total link loss (F).
Fiber o
ptic cable worksheet
Link Name
A
Cable loss
per unit
distance
[ ] dB/Ft
[ ] dB/Km
[ ] dB/Mi
B
Distance
[ ] Feet
[ ] Km
[ ] Miles
C
Cable Loss
A × B
D
Number of
Splices
E
Contingency
Splices
F
Total Link Loss
(dB)
C+2[D+E]