Fluke OF-500-01 OptiFiber, Technical Reference Handbook, Page: 164 / 278

OF-500 OptiFiber Certifying OTDR
Technical Reference Handbook
7-12
Table 7-3 shows a partial list of mandrel requirements for
TIA and ISO standards.
Figure 7-4 shows how to wrap the fiber around a mandrel.
Place mandrels on the tester’s output fibers,
as shown in Figures 7-6 through 7-13.
In the reference and test connection diagrams shown on
the tester, mandrels are indicated by a loop in the fiber.
Table 7-3. TIA-568-C.3 Mandrel Requirements
ajt02f.eps
Figure 7-4. Wrapping a Reference Test Cord Around a Mandrel
Fiber
core size Standard
Wraps Around
Mandrel
Mandrel Diameter for
250 µm Buffered Fiber
Mandrel Diameter for 3 mm
(0.12 in) Jacketed Cable
50 µm TIA-568-C.3 7.1 5 25 mm (1.0 in) 22 mm (0.9 in)
62.5 µm TIA-568-C.3 7.1 5 20 mm (0.8 in) 17 mm (0.7 in)