Cockpit Concept recently launched an Analog Voltage Board which is useful for interfacing analog devices on your flight deck.
Cockpit Concept Analog Voltage Interface Board
The board is plug and play and fully compatible with SIOC (IOCP), ProSim (737/A320), JeeHell FMGS, Level-D 767 and FSUIPC. One Airbus gauge confirmed to be compatible with the interface board is the Airbus Triple Pressure Gauge:
More information about Cockpit Concept and their hardware solutions available here.