EJ8xxx - Signal-Distribution-Board for standard EtherCAT plug-in modules

Module placement

The EJ-Module line shall begin on the left side of the single distribution board with the coupler (or RJ45 connectors) followed by a power supply and IO-modules.

In order to avoid electromagnetical interferences on the E-bus it is not recommended to route IO-connection signals through the E-bus routing area marked in the following figures.

 
Notes for routing
Follow the instructions for routing in chapter Design of power supply and Routing guidelines!

Example with coupler EJ1100

 
 EJ-Design-Guide---Modul-Platzierung-EJ1100
EJ module line starting with coupler EJ1100

Example with coupler EJ1101-0022 and power supply module EJ9400

An additional power supply module (e.g. EJ9400) and RJ45 sockets are required when using coupler EJ1101-0022. The RJ45 sockets should be placed near the coupler.
Crossing the EtherCAT RX/TX lines between the coupler and the modular jacks with signals that may carry electromagnetical interference shall be avoided.

 
 EJ-Design-Guide---Modul-Platzierung-EJ1101-0022
EJ module line starting with coupler EJ1101-0022 (optional RJ45 sockets)
 

Clearances and creepage distances

Between field and E-bus signals clearances and creepage distances have to be taken care of. A Clearence of 1.2 mm is recommended.

Clearance between bus- and field area