TCC-82 is a signal isolator that provides bi-directional serial communication with full electrical isolation between two RS-232 devices. This compact isolator isolates both sides of the connection, providing perfect protection from ground loops, lightning surge coupling, and accidental high voltage shorts. The internal magnetic coupler is tested to ensure that it can withstand more than 4 KV rms input-to-output for 1 minute. This guarantees that the TCC-82 not only meets the requirements of general serial data communications, but also the high standards required by industrial automation and medical applications. In addition to the TxD and RxD data lines, the TCC-82 also protects the RTS/CTS handshake lines on its two D-type connectors.