Fluke DTX-CLT CertiFiber User Manual page 27

The red mandrels included with the DTX-MFM2 are
compliant with ANSI/TIA-568-C for 50 µm fiber with a
3 mm jacket. Mandrels for 62.5 µm fiber are available from
Fluke Networks. Refer to the appropriate standard for
mandrel requirements if you follow other standards. Table
2 shows a partial list of mandrel requirements for TIA
standards.
Fiber
core size Standard
50 µm ANSI/TIA-568-C.0 6.4.2.1
62.5 µm ANSI/TIA-568-C.0 6.4.2.1
Table 2. ANSI/TIA-568-C Mandrel Requirements
Wraps Around
Mandrel
5
5
Essentials for Reliable Fiber Test Results
Figure 10 shows how to wrap the fiber around a mandrel.
Place mandrels on the tester's output fibers, as shown in
Figures 13 through 23.
In the reference and test connection diagrams shown on
the tester, mandrels are indicated by a loop in the fiber.
Mandrel Diameter for
250 µm Buffered Fiber
25 mm (1.0 in)
20 mm (0.8 in)
Mandrel Diameter for 3 mm
(0.12 in) Jacketed Cable
22 mm (0.9 in)
17 mm (0.7 in)
19