YD 1032-2000[YD/T 1032-2000] Limits and Measurement Methods of Electromagnetic Compatibility for 900/1800MHz Digital Cellular Telecommunications System - Part 1: Mobile Station and its Ancillary Equipment (English PDF)

3.1 Type SC optical fiber connector

A plug-in connector based on a single-core plug and an adapter. It is characterized by adopting a rectangular structure AND an elastic clip locking mechanism, including a coupling pin AND a pin with elasticity in the direction of the optical axis. The typical outer diameter of the pin has a nominal value of 2.500 mm.

3.2 Reference plug, adapter

Precision-manufactured or selected plugs and adapters, which are used for measurement.

3.3 Mating face dimensions

The size of parts and components, that determines the mating of a set of optical fiber connector components.

3.4 Concentricity error

The distance, between the fiber core axis and the pin body axis.

3.5 Angular alignment error

The angular offset, between the axis of the excitation beam and the axis of the pin body.

3.6 Physic contact (PC)

The polished front end of the pin has a spherical shape, to ensure that the physical end faces of the fiber are fully contacted, when the two connector end faces are connected, to eliminate the influence of the Fresnel reflection of the fiber end face on the system, thereby making the return loss value reach more than 40 dB.

4.1 Classification

4.1.1 Classification of plugs

Connectors can be classified as follows, according to plugs.

Connectors can be classified as follows, according to adapters.

4.2 Interface graphics and matching dimensions

4.2.1 Type SC/PC connector interface

4.2.2 Type SC/UPC connector interface

SC/PC type connector interface's size is suitable for Type SC/UPC connector.

4.2.4 Type SC connector plug-type active device socket series interface

For Type SC connector plug-type active device socket series interface, see

Appendix B.

4.2.5 Outline drawing and sizes of single-core connector plug and single-

core adapter

4.2.5.1 Outline drawing and size of single-core plug

Figure 5 shows the outline drawing of the single-core plug. BD �� 60 mm; BE size is not specified.

4.2.6 Outline drawing and size of dual-core connector plug and dual-core

adapter

4.2.6.1 Outline drawing and size of dual-core plug

The shape of the dual-core plug is as shown in Figure 8.BD �� 60 mm; the BE size is not specified.

4.4 The end face of connector

4.4.1 End face inspection requirements

Remove the dust cap, which covers the front end of the pin body. Wipe and clean it. Observe the cleanness of the end surface, under a 100X microscope.

It is required that there shall be no obvious oil stains and dirt;

4.4.2 Geometrical size requirements of end face

The end face interferometer can be used, to directly measure the spherical radius of the end face, the deviation of the apex of the spherical face from the center of the pin body, the depression/protrusion of the central fiber, the angle (type APC8��connector), etc. See Table 9 for specific requirements.

4.6 Material

The materials and fiber optic cables, which are used in the connector, shall be guaranteed to be free from aging AND be flame retardant. It can withstand the test conditions, which are required by the connector. The adhesive, which is used to make the connector, has no adverse effect on the structure of the connector. Its physical, chemical, optical characteristics shall match the optical fiber; there shall be no damage to the optical performance of the connector.

4.7 Environmental compliance

The materials and fiber optic cables, which are used in the connector, shall meet the requirements of Table 1 in SJ/T 11363-2006.The limit requirements for toxic and hazardous substances shall be tested, in accordance with the requirements of SJ/T 11365-2006.The results shall meet the requirements of

Table 2 in SJ/T 11363-2006.

5.1 Classification of quality assessment procedures

The quality assessment procedure includes appraisal approval procedure and quality consistency inspection.

5.2 Appraisal approval procedures

5.2.2 Components with similar structure

In order to implement appraisal approval procedure and quality consistency inspection, the components with similar structure are grouped, according to the following limits.

5.2.3 Approval procedures

5.3 Quality consistency inspection

Quality consistency inspection is the product quality inspection, during normal production, including batch-by-batch inspection and periodic inspection.

6.1 Environmental requirements

The measurement and test of the connector shall be carried out, under the following standard atmospheric conditions.

6.2 Visual inspection

Before the optical performance measurement, it shall inspect the appearance of the connector.

6.3 Dimensions

In order to ensure the consistency of the mechanical and optical properties of the product, in the required environment, AND to ensure its versatility and interchangeability, the size of the mating surface of the product shall meet the requirements of this standard.

6.4 Measurement and test conditions

6.5 Measurement of insertion loss

6.6 Measurement of return loss

6.6.1 Benchmark method

The benchmark for measuring the return loss of the type SC connector plug is the directional coupler method. The measurement steps are as follows.

6.7 Test method

6.7.1 High temperature aging test

The test steps are as follows.

6.7.3 Temperature cycle test

The test steps are as follows.

7.1 Inspection responsibilities

The type SC connector shall be inspected by an independent quality inspection department, according to the requirements of this Part, AND issued with a certificate, before leaving the factory.

7.2 Inspection classification

There are two types of inspections for the type SC connectors. Exit-factory inspection (handover inspection) and type inspection.

7.3 Exit-factory inspection

7.4 Type inspection

7.4.1 Inspection conditions

Type inspection shall be carried out for the type SC connectors, in one of the following situations.

7.4.6 Sample processing

7.4.6.1 All samples, that have undergone type inspection, cannot be delivered for use, as qualified products.

7.4.6.2 Under the condition that does not affect the inspection and test results, a group of samples can be used for inspection and test of other groups.

7.4.7 Composition of inspection batch

The batch, which is submitted for inspection, can consist of one production batch OR several production batches that meet the following conditions.

8.1 Marking

8.1.1 Marking content

Each product shall be marked with product model, specification, serial number, batch identification code, safety signs. (If the product is small in size, the marking shall be printed in order of priority).

8.1.2 Marking requirements

After all the tests are carried out, the markings shall remain clear. Products with damaged signs shall be reprinted, to ensure that the markings are clear before shipment.

8.1.3 Pollution control markings

The pollution control marking of the product shall be printed on the packaging box or product, with the pollution control mark of electronic information products, in accordance with the provisions of Chapter 5 of SJ/T 11364-2006.

8.2 Packaging

The product shall have good packaging, to avoid damage during transportation.

The packaging box shall be marked with the product name, model and specification, manufacturer, product implementation standard number, etc.

There shall be a product manual in the packaging box.

8.3 Transportation

When the product needs to be transported over long distances, wooden boxes or cardboard boxes shall be used as outer packaging. The box shall not be thrown, touched or pressed vigorously AND there shall be a rain-proof sign, to avoid damage to the product.

8.4 Storage

The product shall be stored in a warehouse, where the ambient temperature is

-10 ��C ~ +40 ��C, the relative humidity is not more than 80%, there is no corrosive gas or liquid. For products, which have a storage period of more than

12 months, they shall be subject to the test of insertion loss and return loss, in accordance with 6.5 and 6.6, before being shipped out. The test results shall meet the requirements of Table 10, before being shipped out.

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