Labels:text | screenshot | diagram | number OCR: CALCULATING POWER BUDGET Patch Port of hber cable Patch panel 008 juinber: 2.000 ings optical «İŞitnay 10. BER jumper 500msictual cabid Jonfth 405 / fin loss Figure 1. Your fiber link should have a power margin of at least 3AB ( decibels ) to ensure that it will fimetion reliably and with a low Bit Error Rate (BER), In this example, calculate the power, budget by subtracting optical transmitter sensitivity from optical receiver sensitivity, or (-10dlm) - (-22dBm) - +12B. Total optical loss is the sun of the losses in the cable and jumpers. Calculated optical power margin is power budget minus total optical losses. or { \124B) - (-JaB) - +8B. The calculated power margin (+8dB) is greater than the desired power margin ( + 3dB), therefore, this design is valid.
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