Microtest OMNIScanner LT Guía de usuario descargar pdf (Pagina 102)

OmniScanner User Guide

C - 2

Fiber Channel Data Rate Length

100-M6-SL-I 175m

50-M6-SL-I 350m

25-M6-SL-I 700m

12-M6-LE-I 1500m

Formula 1: 568A Equation for 850nm fiber:

(# of mated connections x 0.75) + (# of splices x 0.3) + (length x 3.75dB/1000m) = OLB*

Formula 2: 568A Equation for 1300nm fiber:

(# of mated connections x 0.75) + (# of splices x 0.3) + (length x 1.5dB/1000m) = OLB*

Formula 3: 11801 Equation for 850nm fiber:

(# of mated connections x 0.75) + (# of splices x 0.3) + (length x 3.5dB/1000m) = OLB*

Formula 4: 11801 Equation for 1300nm fiber:

(# of mated connections x 0.75) + (# of splices x 0.3) + (length x 1dB/1000m) = OLB*

*Optical Link Budget (OLB) is the loss measured in a fiber link. Loss in the

connectors, the splices, and the cable are added up to the total link loss or

OLB.

The TIA 568A Equation and the ISO 11801 Equation specify the OLB. Each

has certain PASS/FAIL criteria based on the number of connectors and

splices located along the cable to be tested. These amounts can be

entered as test limits. OMNI

Scanner

then calculates optical power loss as

follows: Max. Loss (dB) = Cable Loss + Connector Loss + Splice Loss.

The Optical Link Budget (OLB) is the PASS/FAIL point in dB. The number

of connections and splices is entered in the first Autotest screen.

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Microtest OMNIScanner LT Guía de usuario Pagina 102