Extech Instruments 1300 OWL Especificações descarregar pdf (Página 23)

Fiber Type

Passive Cable System Attenuation

Fiber Loss at Operating Wavelength (Distance x Fiber Loss)

Connector Loss (Connector Loss x Connector Pairs)

Splice Loss (Splice Loss x Splices)

Calculate Link Loss Budget

Determine System Gain (Avg. Transmitter Power - Receiver Sensitivity)

Power Penalties (Operating Margin + Receiver Power Penalties + Repair Margin # Splices at 0.3dB each)

Determine link Loss Budget (System Gain - Power Penalty)

Verify Adequate Power (Total Link Loss Budget - Total System Attenuation)

Verify Performance

* System Performance Margin must be greater

than 0 dB in order for the system to operate

using the specified electronics.

Operating Wavelength

Appendix H - Link Budget Calculation Worksheet

Total Cable Distance

Individual Fiber Loss (at operating wavelength)

dB/km

Total Fiber Loss dB

Individual Connector Loss

Number of Connector Pairs

Total Connector Loss

Individual Splice Loss

Number of Splices

Total Splice Loss

Other Components

Total System Attenuation

(Fiber Loss + Connector Loss + Splice Loss + Other Components)

Avg. Transmitter Power

dBm

Receiver Sensitivity

-9

dBm @ 10 BER

System Gain

Operating Margin

Receiver Power Penalties

Repair Margin

Total Power Penalty

System Gain

Total Power Penalty

Total Link Loss Budget

Total System Attenuation

System Performance Margin*

4-9

UNIT 3

APPENDICES

APPENDICESUNIT 4

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