Colour codes: yellow, brown, violet, white. Consisting of coding clip and coding frame. This coding for RJ45 jacks fits into the coding system Data Safe Lock, protecting electronics and networks against damage and disturbances. The coding provides a mechanical and a visual coding option and can be retrofitted to all Data Safe Lock-capable connection components (jacks as well as patch panels). This individual mechanical coding with individual colour fields effectively prevents that different services be connected by mistake.