A disposable connector apparatus designed for one time use in a bioprocessing assembly, and a method for coupling a piece of bioprocessing equipment to a media source in a sterilized environment. In one described embodiment, each data bit of digital outputs of multiple downhole data sources is multiplied by an orthogonal code unique to each data source. The protector assembly defines a plurality of bores, a first of the plurality of bores being configured to receive a string and a second of the plurality of bores being configured to receive a cable. The auxiliary transistor has a load path connected between the control electrode of the limiting transistor and a reference node, and having a control electrode connected between the first transistor and the limiting transistor.