CORNING EDGE8 LC-MTP 설치 및 테스트 - 페이지 3

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Calculating System Loss Budgets

5.1

This section describes how to calculate the loss budgets of a system using an EDGE8™ Tap

Module. Note that you will need to calculate one loss budget for the LIVE system (Figure 4) and

two different loss budgets for the Tap output (Figure 5 and 6).

Table 1 indicates the system loss values of the system components:

Component

MTP® mated pair loss

LC mated pair loss

Splitter 50/50 (dB)

Splitter 30/70 (dB)

Insertion loss specifications when mated to other system components of a like

performance specification

5.2

To calculate the system losses, add the loss values of the components as illustrated in the

examples shown in Figures 4, 5, and 6.

Budget loss for a LIVE multimode system using OM4 fiber and 50 /50 splitters:

LC mated

pair

0.15

"Near end"

EDGE8 Tap Module

HPA-0825-EDGE8

STANDARD RECOMMENDED PROCEDURE 003-137-AEN | ISSUE 1 | JANUARy 2017 | PAGE 3 OF 8

Multimode Fiber

optimized 50µm

Loss, max (dB)

Table 1: System Loss Values

MTP

50/50

mated pair

splitter

3.70

0.30

OM4

Ultra-bendable

(850 nm)

0.30

0.15

3.7

1.80/5.80

0.15 +3.7 + 0.30 +0.25 + 0.10 = 3.70 dB + fiber loss

Note: Fiber loss

depends on length

of system

Single-Mode Fiber

Bend-improved

single-mode

(1310 nm)

Loss, max (dB)

0.35

0.25

3.5

5.80/2.10

LC mated

MTP

pair

mated pair

0.25

0.10

EDGE8 Module "B"

"Far end"

Figure 4