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I/O Power Output

Specification of the +12V power output of the I/O connector

A non-isolated +12 V power output is available on every I/O connector.

The power originates from an external 12 V power supply plugged into the Auxiliary Power Input connector. It is distributed from a common electronic fuse to all the I/O connectors.

The electronic fuse provides the following protections:

  • Limits the inrush current during power on sequence
  • Protects the Coaxlink card and the power source against overload
  • Protects the Coaxlink card the power source against short-circuits.

The sum of the load currents drawn from all the 12 V outputs of the I/O connectors must be lower or equal to the specified maximum output current.

I/O +12 V power output specification
Parameter Conditions Min. Typ. Max. Units
Aggregated output current Operating temperature range     1.0 A
Voltage drop across the electronic fuse Max. output current     0.2 V
Note: The above specification applies over the whole operating temperature range of the Coaxlink card.