STANDARD RECOMMENDED PROCEDURE 003-139-AEN | ISSUE 1 | JANUARy 2017 | PAGE 6 OF 13
8. 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:
Table 1:
System Loss Values
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.
Figure 9
Multimode Fiber
Single-Mode Fiber
OM4
Ultra-bendable
optimized 50µm
(850 nm)
Bend-improved
single-mode
(1310 nm)
Component
Loss, max (dB)
1
Loss, max (dB)
1
MTP® mated pair loss
0.30
0.35
LC mated pair loss
0.15
0.25
Splitter 50/50 (dB)
3.7
3.5
Splitter 30/70 (dB)
1.80/5.80
5.80/2.10
1
Insertion loss specifications when mated to other system components of a like
performance specification
EDGE8 Tap Module “A”
HPA-0998-EDGE8
“Near end”
Budget loss for a LIVE multimode system using OM4 fiber and 50 /50 splitters:
0.30
0.30
0.25
0.10
0.10
3.7
+
+
+
+
50/50
splitter
MTP
mated pair
MTP
mated pair
MTP
mated pair
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
EDGE8 Module “B”
“Far end”
LC mated
pair
LC mated
pair
Tap port
test harness
