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NE40E V800R010C10SPC500 Installation Guide

This is NE40E V800R010C10SPC500 Installation Guide
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Checking the Metal Contacts

Checking the Metal Contacts

This section describes how to check the metal contacts to preliminarily determine if an assembled RJ45 connector meets the necessary standards.

Context

  • To ensure proper contact between the crimped parts and core wires, the heights and sizes of the metal contacts must be uniform and standard.
  • The metal contacts must be parallel to each other, with an offset less than 5°. The top margin of a metal contact must be parallel to the axis of the connector, with an offset less than 10°.
  • To ensure proper conduction, the surface of the metal contacts must be clean.
  • The metal contacts must be in good contact with the RJ45 socket. The plastic spacings must remain intact and must be aligned properly.
  • The soldering edge of a metal contact must surpass the ends of the core wires. The ends of the core wires must be in contact with the edge of the RJ45 trough. The distance between them must be less than 0.5 mm (0.02 in.).

Procedure

  1. Hold the crimped connector, with the front side facing you, and check whether the metal contacts are the same height. The height must be 6.02 ± 0.13 mm (0.24 ± 0.005 in.). If a measuring tool is not available, you can visually compare the connector with a standard connector. Figure 4-32 shows a defective connector and Figure 4-33 shows a well-made connector.

    NOTE:

    All defective connectors must be crimped again.

    Figure 4-32 Metal contacts of different heights

    Figure 4-33 Metal contacts of the same height

  2. Hold the RJ45 connector and turn it by 45°. Observe the top edges of the metal contacts. Figure 4-34 shows a defective connector.

    Figure 4-34 Unparallel metal contacts of different heights

  3. Check whether the metal contacts are clean. If they are not clean and the dirt cannot be removed, replace the RJ45 connector. Figure 4-35 shows a defective connector.

    Figure 4-35 Dirt on a metal contact

  4. Check whether the metal contacts and the plastic spacings are intact and stand straight. If a part is skewed and it cannot be fixed, replace the RJ45 connector. Figure 4-36 shows a defective connector.

    Figure 4-36 RJ45 connector with oblique plastic spacings

  5. Hold the connector, with the side facing towards you, and check whether you can see the cross-sections of the core wires. Ensure that the ends of the core wires are in good contact with the edge of the RJ45 trough, and that the soldering edge of the metal contact surpasses the ends of the core wires and is reliably crimped with the core wires. If not, replace the RJ45 connector. Figure 4-37 shows a defective connector.

    Figure 4-37 Core wires not in good contact with the edge of the RJ45 trough

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Updated: 2019-01-03

Document ID: EDOC1100055059

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