Fluke Networks CertiFiber Pro Users Manual - Manual (Page 215)

Chapter 7: How to Certify Fiber Cabling
Autotest in Loopback Mode
193
GPU131.EPS
Figure 86. Connections for Loopback Mode
(1 Jumper Reference, Multimode Fiber)
Test
reference
cord

Caution
Do not disconnect the
output (
) after you set
the reference.
When you use the EF-TRCs, 
DO NOT use other
mandrels.
Fiber
Fiber Test
Reference TRC Verification
*Use the EF-TRCs only with multimode modules.