EXFO IQS-1600 High-Speed Power Meter for IQS-500/600 - Manual (Page 71)

Performing Acquisitions
High Speed Power Meter 63
Selecting the Acquisition Mode
Setting Trigger Acquisition Parameters
Conditional data acquisition can be performed using a triggered
acquisition, meaning that data recording begins when a specified
condition is met. Different trigger conditions are available, which are
explained in the following table, where A and/or B represent the channel
on which the condition is to be met, and x and/or y represent the desired
power level threshold.
Trigger Description
A > x Acquisition will start when measured power is greater
than the specified x value.
A < x Acquisition will start when measured power is lower
than the specified x value.
A > x AND A < y Acquisition will start when measured power in
channel A is inside the interval set by the values
x and y.
A or B < x Acquisition will start when power in either channel A
or channel B is lower than the specified x value.
x < A or B < y
(multichannel
power meters
only)
Acquisition will start when measured power in
channel A goes over a specified value (A > x).
OR
Acquisition will start when measured power in
channel B falls under a specified value (B < y).
A < B
(multichannel
power meters
only)
Acquisition will start when measured power of
channel A is lower than measured power of channel B.
External trigger Acquisition in single rate will be triggered by an
external signal, whether on positive or negative TTL
voltage transitions (SeeExternal Trigger on page 82 for
additional information on this feature).