39 of 49
OP940-SW
Connect the cables as below, leaving the reference connectors disconnected.
Reference return loss as in Example 1 (page 33).
On the second screen of options in RL Ref mode, select the feature to change the
direction of the OP725. Then repeat the RL reference for the B A direction. To return to
the measurement screen, press the Home button.
Connect the two reference
cables and reference Insertion
Loss as in Example 3
(page 37).
Bidirectional IL & RL
Example 4: Referencing Bidirectional IL and RL with an OP725
Page 1
Page 2
A
B
B
A
Stop
Start
RL Ref
RL
1310
RL
1550
Range: 10m - 100m
A - B: No Ref
No RL Reference Taken
CH
24
21.3 °C
B - A: No Ref
AB/CD
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