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Testing the Live Portion of the System

8.1

This section describes how to calculate the loss budgets of the LIVE portion of a system using

an EDGE88 MTP Tap Module and how to test that portion of the system. Note that you will need to

calculate one loss budget for the LIVE system (Figure 9).

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

8.2.

To calculate the system loss for the LIVE system, add the loss values of the components that

are in the system as illustrated in Figure 9.

LC mated

pair

0.10

Tap port

test harness

0.30

MTP

mated pair

"Near end"

HPA-0998-EDGE8

STANDARD RECOMMENDED PROCEDURE 003-139-AEN | ISSUE 1 | JANUARy 2017 | PAGE 6 OF 13

Multimode Fiber

optimized 50µm

Loss, max (dB)

Table 1: System Loss Values

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

MTP

50/50

mated pair

splitter

0.30

3.7

EDGE8 Tap Module "A"

OM4

Ultra-bendable

(850 nm)

0.30

0.15

3.7

1.80/5.80

0.10 +0.30 +3.70 + 0.30 +0.25 + 0.10 = 4.75 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 9