EXFO IQS-12004B DWDM Passive Component Test System for IQS-500 - Manual (Page 49)

DWDM Passive Component Test System 37
4 Setting Up the DWDM Passive
Component Test System
The DWDM Passive Component Test System has been designed to let you
define DUTs and optical ports that can be used for future tests.
Configuring DUT Parameters for Pass/Fail
Analysis
Note: You must be working at the Supervisor level to access this window.
The DUT Configuration window allows you to define specific parameters
for the optical ports and DUTs you will be testing. Information entered in
this window is used to construct and maintain two internal lists: one for
port types and one for DUTs. These two lists provide an efficient way of
identifying the Pass/Fail limits for all your commonly tested components.
The relationship between optical ports and DUTs is illustrated below. In this
example, the DUT is a four-channel device with one common port and four
output ports.
To identify the Pass/Fail criteria for this type of component, you must define
the different parameters (IL, PDL, BW, etc.) for each port. In most cases,
the characteristics for all ports will be identical, except for the wavelength.
The most efficient way of describing the above device would be to create a
port (200 GHz bandpass) and define all its Pass/Fail criteria. When you
define the DUT, you simply have to select a port type for each output and
assign a wavelength to the port mask. This 200 GHz bandpass port will also
be used for defining other devices. There is no practical limit to the number
of different ports or DUTs that can be defined.
1x4 Demultiplexer
(DUT)
Port 1 (200 GHz bandpass)
Port 2 (200 GHz bandpass)
Port 3 (200 GHz bandpass)
Port 4 (200 GHz bandpass)