An endoscope system including an endoscope including an endoscope electro pneumatic connection assembly having a leak test port an endoscope electro optic subsystem which is connectable to the endoscope via the endoscope electro pneumatic connection assembly in a manner which precludes access to the leak test port when the endoscope electro optic subsystem and the endoscope are connected at the electro pneumatic connection assembly and an electro pneumatic adaptor which is connectable to the endoscope at the electro pneumatic connection assembly and includes an adaptor electro pneumatic connection assembly including a leak test port connector for connection to the leak test port of the endoscope an adaptor electrical port assembly to which the endoscope electro optic subsystem is connectable and a pneumatic port.
