Siemens 7SR23 DAD Manual page 87

The following table can be used to record budget calculations:
A Launch power
B Fibre Type
C Loss (dB/km)
D Length
E Total fibre loss (CxD)
F No. of Splices
G Loss at each splice
H Total loss at splices (FxG)
I No. of connectors
J Loss per connector
K Total loss at connectors (IxJ)
L Total losses (E+H+K)
M Receive power budget (A-L)
N Safety Margin
O Device Receive Sensitivity
©2013 Siemens Protection Devices Limited
Chapter 4) 7SR23 DAD Data Communications
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Chapter 4 Page 9 of 54