BlackTube E1 Over Ethernet Encryptor by Engage Black is a device designed to encrypt E1 circuits for transport over Ethernet networks. It integrates encryption capabilities into the Engage IP Tube circuit-to-packet product line. BlackTube E1 Over Ethernet Encryptor supports circuit protocols like HDLC, SDLC, PPP, Frame Relay, Conitel, Modbus, DNP, and proprietary protocols.
