Compact Power Supply Unit
The EKE-Trainnet® Compact Power Supply Unit (PSR) is a highly reliable switching mode power supply module. It takes power directly from the train batteries.
The EKE-Trainnet® PSR module is primarily designed to power the EKE-Trainnet® Remote Input Output System, but can also be used for some simple VME Bus systems.
Key Features
The EKE-Trainnet® PSR can be operated with either 24 to 36 V DC (PSR3031) or 48 to 110 V DC (PSR3032) coach supply voltage and provide 5 V DC output power. The input supply is provided directly from the train battery to the PSR module through a 2W2C D-Sub connector.
When the input supply voltage is below the set minimum value, EKE-Trainnet® PSR minimises current consumption to prevent the deep discharge of train batteries.
The EKE-Trainnet® PSR has built-in circuitry to detect and control the input current in the event of a power-up. Controlling the in-rush current prevents component damage.
The EKE-Trainnet® PSR module withstands 10ms input power breaks without disrupting any of the normal operations (Voltage Supply Interruption as per EN50155 Class S2 and Supply change over as per EN50155 Class C1). In case of a longer break in the power supply, the SYSRESET signal is activated to ensure proper shutdown of the systems.
