EXFO PM-1600 High-Speed Power Meter - Manual (Page 59)

Programming Acquisitions
High-Speed Power Meter 49
Programming Triggered Acquisitions
Programming Triggered Acquisitions
Conditional data acquisition can be performed by using a triggered
acquisition, where data recording begins when a specified condition is met
and continues until the specified number of points has been acquired or
for the time specified in the duration edit box. If a delay was set in the delay
edit box, the acquisition will not start until
➤
the countdown has expired, and then
➤
the specified condition is met.
Different trigger conditions are available. These conditions are explained in
the following table.
Note: The trigger defines the condition for starting data acquisition. Once
underway, the acquisition will continue until the specified number of points
has been acquired or for the specified duration, regardless of the measured
power.
Trigger Description
Power > Level or
Power < Level
(channel #1 or
channel #2)
Acquisition will start when the measured power is
greater or smaller than the specified power level (in
dBm or W units).
Falling Edge or
Rising Edge
(external trigger)
Acquisition will be triggered by an external signal on
the external trigger port of the power meter, whether
on negative or positive TTL transitions. See also
Using the External Trigger on page 63.
Programming Acquisitions
High-Speed Power Meter 49
Programming Triggered Acquisitions
Programming Triggered Acquisitions
Conditional data acquisition can be performed by using a triggered
acquisition, where data recording begins when a specified condition is met
and continues until the specified number of points has been acquired or
for the time specified in the duration edit box. If a delay was set in the delay
edit box, the acquisition will not start until
➤
the countdown has expired, and then
➤
the specified condition is met.
Different trigger conditions are available. These conditions are explained in
the following table.
Note: The trigger defines the condition for starting data acquisition. Once
underway, the acquisition will continue until the specified number of points
has been acquired or for the specified duration, regardless of the measured
power.
Trigger Description
Power > Level or
Power < Level
(channel #1 or
channel #2)
Acquisition will start when the measured power is
greater or smaller than the specified power level (in
dBm or W units).
Falling Edge or
Rising Edge
(external trigger)
Acquisition will be triggered by an external signal on
the external trigger port of the power meter, whether
on negative or positive TTL transitions. See also
Using the External Trigger on page 63.