Structure of the PCB layers

Requirements of the PCB

A multilayer PCB with at least four Layers is recommended for EJ-Backplane, in order to allow complete covering of the differential pairs with copper (GND net) from both sides of the PCB.

Note

Avoid damage of backplane and components!

Short circuit condition has to be taken into account for cross section configuration.

The snap in mechanism of the EJ-Modules is designed for a PCB thickness of 1.6 mm ±10%.

Structure of the PCB layers 1:
Requirements of the PCB (min. four layers, max. 1.6 mm thickness)

The following chapters show an example for a PCB with four layers with the routing in the individual layers.

Note

Note on routing