User's Guide

20
IEC Pass/Fail Analysis
Pass/Fail Analysis
Main Menu and Settings
IEC 61300-3-35 denes connector inspection pass/fail criteria.
Pass/Fail criteria depends on:
• Fiber type (SMF or MMF).
• Connector end face regions:
– A region: Core
– B region: Cladding
– C region: Adhesive (between cladding
and ferrule)
– D region: Physical contact area
• Type of end face aw:
– Scratches
– Defects (contamination, particles, chips)
• Size of aw.
IEC 61300-3-35 for multi-ber MPO/MTP connectors only denes the following regions (or zones):
– A region: Core
– B region: Cladding
Core
Failing
Defect
Passing
Defect
Contact
Adhesive
Cladding
Shown below is the display when the IEC rule for single-mode PC connector with return loss ≥ 45 dB is
selected. The table identies the number of scratches or defects of a certain size, which may be allowed
in each of the core, cladding, and contact regions.
Example IEC Rule
Region Scratch Defect
A: Core
>0 µm: 0
No scratches >0 µm
allowed
>0 µm: 0
No defects >0 µm
allowed
B: Cladding
>3 µm: 0
No scratches >3 µm
allowed
2-5 µm: 5
Up to 5 defects 2-5 µm
diameter allowed
>5 µm: 0
No defects >3 µm
allowed
C: Adhesive
Blank
(No limitations on
scratches)
Blank
(No limitations on
scratches)
D: Contact
Blank
No limitations on
scratches
0 ≥ 10 µm
No defects ≥ 10 µm
allowed