请教大神是否RJ45网口需要做ESD接触放电？

jansle_happy

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我们有一款产品WIFI功能产品，是适用RJ45网线供电的，也就这个外接接口，请教大神是否RJ45网口需要做ESD接触放电？如果是怎么测试，是使用尖头放电枪在网口和水晶头接触的那一圈放电？但是按照61000-4-2中豁免的条款，应该是不用做的吧。

$ S% z$ b+ u2 r) l: o8.3.2 Direct application of discharges to the EUT
Unless stated otherwise in the generic, product-related or product-family standards, the electrostatic discharges shall be applied only to those points and surfaces of the EUT which are accessible to persons during normal use. The following exclusions apply (i.e. discharges are not applied to those items):
: d' o9 u% y1 A1 n( q! G8 Ra) those points and surfaces which are only accessible under maintenance. In this case, special ESD mitigation procedures shall be given in the accompanying documentation;
) ]. h" {4 I* U; b: D
b) those points and surfaces which are only accessible under service by the (end-)user. Examples of these rarely accessed points are as follows: battery contacts while changing batteries, a cassette in a telephone answering machine, etc.;
c) those points and surfaces of equipment which are no longer accessible after fixed installation or after following the instructions for use, for example, the bottom and/or wallside of equipment or areas behind fitted connectors;
7 L0 c/ w8 X& B# v. }. W6 j" k3 `d) the contacts of coaxial and multi-pin connectors which are provided with a metallic connector shell. In this case, contact discharges shall only be applied to the metallic shell of these connectors.

e) those contacts of connectors or other accessible parts that are ESD sensitive because of functional reasons and are provided with an ESD warning label, for example, r.f. inputs from measurement, receiving or other communication functions.

花开的时候

看标准条款，对网口应该只做空气放电就可以了。

zihui

接触放电通常是针对金属接口