Autotest In Loopback Mode - Fluke DTX-1800 Technical Reference Handbook

DTX Series CableAnalyzer
Technical Reference Handbook

Autotest in Loopback Mode

Use Loopback mode to test spools of cable and segments of
uninstalled cable. In this mode, the tester measures loss,
length, and propagation delay at two wavelengths in one
or both directions.
Figure 8-13 shows the equipment required for testing fiber
in Loopback mode.
8-28