Performance Check – TekRanger (serial nos. below B052000)
TFS3031 TekRanger/TekRanger 2 Service Manual
3–13
Multimode Event-Detection and Dead-Zone Test Fixture
Construct the multimode event-detection and dead-zone test fixture as shown in
figure 3–6.
62.5/125
µ
m
multimode
FC connector
Secondary output
1 X 2 multimode
7/93%
splitter
Primary input
Primary
output
62.5/125
µ
m
multimode
ST connector
500 m x 2
62.5/125
µ
m
multimode fiber
Denotes cleaved end
Denotes splice
1
2
3
4
5
700 m
500 m
62.5/125
µ
m
multimode fiber
Figure 3–6: Multimode Event-Detection and Dead-Zone Test Fixture
1. To create non-reflective events, perform multiple arcs on the fusion splice
until the desired loss is obtained for non-reflective events. Measure the splice
loss of the event using an OTDR.
2. To create a repeatable reflective –40-dB event, cleave the 7% leg of the
splitter. Measure the event return loss using an OTDR. The desired event
return loss is –40 dB
2 dB.
To characterize the multimode event-detection and dead-zone test fixture, refer to
the statistical characterization of the singlemode event-detection test fixture, on
page 4–13.
Statistical
Characterization of
Multimode Test Fixture
Summary of Contents for TekRanger 2 TFS3031
Page 5: ......
Page 27: ...Module Level Service 1 4 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 39: ...Battery Recharging and Replacement 1 16 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 129: ...Accessories and Options 1 106 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 133: ...Theory of Operation 2 4 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 265: ...Replaceable Parts 6 14 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 270: ......
Page 271: ......