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EXFO IQS-12004B DWDM Passive Component Test System for IQS-500 User Manual

Page 419

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Definitions and Calculation Methods

DWDM Passive Component Test System

407

Crosstalk

Smallest difference between in-band (BW1) loss and other

channel band (BW1) loss (see Channel Crosstalk (dB) on

page 412).
When PDL is available, this is calculated using the average

attenuation.

Max Crosstalk

Maximum crosstalk value between the current channel and all

channels under test.

Total Crosstalk

Sum of crosstalk from other channels.
When PDL is available, this is calculated using the average

attenuation.

ORL

Lowest ORL (strongest reflection) value within BW1.

Bandpass Filters