4HTTPS is an HTTPS proxy to secure communications between flanking systems and the OPDS platform. 4HTTPS terminates the encrypted connection and passes data across the diode in cleartext to facilitate any content filtering required. 4HTTPS then establishes a new HTTPS connection to the destination system, re-encrypting the traffic.
4HTTPS works only on the OPDS platform.
Digital electronics or digital (electronic) circuits are electronics that operate on digital signals. In contrast, analog circuits manipulate analog signals whose performance is more subject to manufacturing tolerance, signal attenuation and noise.