Feedback Integrated Solutions
Fiber Optic Link Budget Tool
dB loss by length • connectors • splices • splitters • margin • pass/fail (advisory only)
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Project Information (optional)
Project Name
Owner / Client
Project Address
Core Inputs (required)
Fiber Type
OS2 (Single-Mode)
OM3 (Multi-Mode)
OM4 (Multi-Mode)
Wavelength (nm)
1310
1550
850 (MM)
1300 (MM)
Link Length (m)
Connectors (qty)
Connector Type
UPC (~0.3 dB each)
APC (~0.2 dB each)
MM (~0.4 dB each)
Custom per-connector loss
Custom Connector Loss (dB/each)
Splices (qty)
Splice Type
Fusion (~0.1 dB)
Mechanical (~0.2 dB)
Custom per-splice loss
Custom Splice Loss (dB/each)
Splitters (qty)
Splitter Ratio
1:2 (≈3.5 dB)
1:4 (≈7.0 dB)
1:8 (≈10.5 dB)
1:16 (≈13.5 dB)
1:32 (≈17.0 dB)
Custom (dB each)
Custom Splitter Loss (dB/each)
Design Margin (dB)
Fiber Atten Override (dB/km)
Cleanliness Allowance (dB)
Optical Budget (optional)
Transmitter Power (dBm)
Receiver Sensitivity (dBm)
Data Rate (Gbps)
(dispersion hint)
1G
2.5G
10G
25G
Calculate
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Results
Total Link Loss
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Loss Breakdown
—
Typical Attenuation
—
Budget Check
—
Max Distance @ Budget
—
Dispersion Hint
—
ASCII Link Sketch
(calculate to preview)
Typical α (attenuation):
OS2 0.35 dB/km @1310, 0.22 @1550; OM3 3.5 @850, 1.5 @1300; OM4 3.0 @850, 1.5 @1300. Loss = α·L + (conn × loss) + (splice × loss) + (splitter × loss) + cleanliness + margin. Advisory only; confirm with vendor specs and test results (OTDR/OLTS).
Feedback Integrated Solutions
Fiber Link Budget – Summary Report
Project:
—
Owner:
—
Address:
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Inputs
Type
λ (nm)
Length
Conn
Splice
Splitter
α(dB/km)
Margin
Clean
Tx
Rx
Rate
—
—
—
—
—
—
—
—
—
—
—
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Computed
Total Loss
Breakdown
Budget Check
Max Distance
Dispersion
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—
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Preliminary Estimate Only:
Validate against transceiver datasheets. Clean and inspect connectors; test with OLTS/OTDR. Include patching path losses if intermediate panels are used.