CORNING EDGE8 MTP Встановлення та тестування - Сторінка 9
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9.
Testing the Tap Portions of the System
NOTE: Testing of the TAP portions of a system is not required by Corning to obtain the extended
warranty. The testing of the LIVE link confirms the post-installation condition of the of the trunk since
the module itself is factory-tested and is not deployed like a trunk.
9.1
This section describes how to calculate the loss budgets of the TAP portions 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 two loss budgets for the Tap portion system (Figures 12 and 13).
Table 1 above indicates the system loss values of the system components.
9.2.
To calculate the system loss for the TAP system, add the loss values of the components that are
in the system as illustrated in Figures 12 and 13.
Budget loss for a Tap multimode system using OM4 fiber and 50 /50 splitters:
HPA-1002-EDGE8
Budget loss for a LIVE multimode system using OM4 fiber and 50 /50 splitters:
MTP
mated pair
0.30
+
LC mated
pair
0.10
Tap port
test harness
"Near end"
HPA-1003-EDGE8
STANDARD RECOMMENDED PROCEDURE 003-139-AEN | ISSUE 1 | JANUARy 2017 | PAGE 9 OF 13
LC mated
pair
0.10
Tap port
test harness
Tap port
test harness
LC mated
pair
0.10
MTP
50/50
mated pair
splitter
+
+
0.30
3.7
EDGE8 Tap Module "A"
0.10 +0.30 +3.7 + 0.30 + 0.10 = 4.5 dB
+
0.30
MTP
mated pair
EDGE8 Tap Module "A"
0.30
+
MTP
mated pair
0.10 +0.30 +3.7 + 0.30 +0.25 + 0.10 = 4.75 dB + fiber loss
Note: Fiber loss
depends on length
of system
+
50/50
3.7
splitter
+
Figure 12
LC mated
MTP
pair
mated pair
+
0.25
0.10
EDGE8 Module "B"
"Far end"
Figure 13