EXFO FTB-8500 Series for FTB-500 - Manual (Page 229)

Stream Generation Tabs
Ethernet and Fibre Channel Application 215
Stream Configuration
For Ramp Traffic Shaping
Note: Available for Stream 1 with Ramp and n-Ramp transmit modes.

Number of Steps: Enter the number of steps. Choices are 2 to 100.
The default setting is 10.

Step Time: Enter the time duration of each step. Choices are 100
to 8000 milliseconds. The default setting is 1000 milliseconds.

Unit choices are ms (milliseconds) and s (seconds). The default
setting is ms (milliseconds).

Ramp Cycle Count: Available with n-Ramp transmit mode only.
Enter the number of ramp cycle count. Choices are 1 to 225. The
default setting is 1.