EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 109)

Testing Fibers in Template Mode
OTDR 95
Restrictions of Template Mode
Item To be valid...
Pulse width
³
Must be:
OR
Pulse width
³
This would also be valid:
OR
Fiber types Compare singlemode traces with singlemode traces.
Compare multimode traces with multimode traces.
Number of
events
Traces must have at least two events (span start and span end) and a
fiber section.
Acquisition
mode
Reference trace must not be acquired in Real mode (see Monitoring
Fiber in Real-Time Mode on page 92).
Wavelengths Reference wavelengths and wavelengths of subsequent (or reloaded)
traces must be identical.
Reference trace pulse
4
---------------------------------------------------
⎝ ⎠
⎛ ⎞ Current trace pulse
≤
Reference trace pulse
Current trace pulse
Current trace pulse Reference trace pulse ( 4 ) × ≤ Reference trace pulse Current trace pulse
Current trace pulse
4
------------------------------------------------
⎝ ⎠
⎛ ⎞ Reference trace pulse
≤ Reference trace pulse
Current trace pulse
Reference trace pulse Current trace pulse ( 4 ) × ≤ Reference trace pulse Current trace pulse