Engineering
Report
2.5 mm Connector Adapters
1.
1.1.
INTRODUCTION
Purpose
502-1170
10Dec04 Rev O
EC 0990-1630-04
The purpose of this test was to determine the conformance of 2.5 mm connector adapters, listed in
paragraph 1.4., to the requirements stated within this document.
1.2.
Scope
This report covers the mechanical performance of the listed adapters, manufactured by the Fiber Optics
Business Unit of Tyco Electronics. Testing was performed between 15Sep03 and 09Oct03.
1.3.
Conclusion
All test specimens listed in paragraph 1.4., with the exception of one, passed the test criteria of 0.10 dB
maximum range of optical transmittance at 1310 nm. The outlier contained a flawed component, as
shown in Appendix A, and was removed from the graphs and statistical calculations.
1.4.
Test Specimens
The following specimens were manufactured by Tyco Electronics, Fiber Optics Business Unit, using
normal manufacturing means:
Part Number Quantity
1278348-3
501506-1
2.
300
200
Description
Metal SC/SC Simplex Receptacle with a Ceramic Alignment Sleeve
Metal FC/FC Simplex Receptacle with a Ceramic Alignment Sleeve
SUMMARY OF TESTING
All specimens met the 0.10 dB maximum range of optical transmittance requirement over four alignment
sleeve positions. Optical measurements were recorded at 1310 nm. Refer to Appendix B for data
charts.
Specimen
Description
SC Adapter
FC Adapter
Maximum Range for any Individual Specimen
Requirement
0.10 dB
Figure 1
Actual
0.08 dB
0.06 dB
©2004 Tyco Electronics Corporation
Harrisburg, PA
All International Rights Reserved
* Trademark
| Indicates change
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LOC B
502-1170
3.
METHOD
The following procedure was used to determine the range for each specimen.
3.1.
The adapter under test was unpackaged, the dust caps removed, and the ceramic sleeve blown out
with compressed air.
The test consisted of a 4-point rotation of the ceramic sleeve inside of the adapter. The slot in the
ceramic sleeve was aligned with the slot of the adapter, which corresponds to the key feature of the
connector.
The launch lead and receive lead were cleaned, inspected and mated with the adapter under test. The
initial optical power reading in dBm, recorded at 1310 nm, was taken with the key/ceramic sleeve slot
up, or both at the 12 o'clock position.
The leads were then uncoupled and the sleeve rotated 90 degrees to the 3 o'clock position (with respect
to the side which was coupled to the launch lead). Leads were cleaned, inspected, and re-mated with
the adapter under test.
Paragraphs 3.2. through 3.4. were repeated for both the 6 o'clock and 9 o'clock positions.
The range of optical transmittance was calculated, using all 4 positions, and compared to the criteria of
0.10 dB maximum.
TEST EQUIPMENT
All optical measurements were recorded using the following:
4.1.
Test Equipment
3M Photodyne 17XTF Fiber Optic Power Meter Calibrated February 28,2003, Number E8025-0633
RIFOCS 671R Super Controller, Serial Number 110370
Adapter under test (specimens listed in paragraph 1.4.)
Two (2) SM Reference Quality Leads (one for launch and one for receive)
Adapter Fixturing
Westover Bench top Inspection Microscope
3.2.
3.3.
3.4.
3.5.
3.6.
4.
4.2.
Rev O
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Cleaning Materials
Kim Wipes Lint Free Cloths
Propanol-2
Swabs (to rotate sleeve)
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