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Figure D-9
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Appendix D. Performance Test
Test VII. Noise
Test VII. Noise
This parameter ensures the dynamic range of PDL/PDG
measurements, i.e. the Max. insertion loss of a DUT where the PDL
specifications still apply.
1 Set up and switch on the equipment:
a Connect the equipment as shown in Figure D-9.
(If a second HP 81521B #001 Head is part of your OLA
perform the test again with this Head).
HP 8153A
Standard Lightwave Multimeter
Standard Optical Head
Interface Module
HP 81533B
HP 81521B #001
Optical Head
Protective Cap
Noise Test Setup
b Ensure that the instruments have warmed up.
c
Mount the protection cap on the head in order to keep the
light out.
2 Zero the HP 8153A:
a Press M
ENU
b Press Z
ERO
210
to change to Measure Mode.
and wait while zeroing.
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