SCHNEIDER BMEXBP0400
The BMEXBP0400 module is a 4-module slot backplane designed for DIN rail mounting. It is suitable for the Modicon M340 and M580 series PLC systems. In addition, it has an embedded Ethernet switch and is connected to some slots on the backplane (not all of them have Ethernet connections). X bus functionality is retained on the backplane and conforms to traditional implementations and specifications 1. This module also provides a power supply for Module 1 in all racks.
Product parameters:

Mounting type: DIN rail mounting 1.

Dimensions: 242.4mm x 105.11mm x 19mm (L x W x H) 1.
Number of module slots: 4 12.
Max backplane current: 118mA1.
Operating temperature range: 0°C to +60°C1.
Weight: 0.705kg (unloaded) 1.