The XE0002B Data Access Arrangement provides a 'direct connect' telephone line interface. It complies with FCC Part 68 hazardous voltage, surge and leakage current specifications. This component may be used as the direct connect telephone line interface for virtually any application in which voice or data is to be transmitted over the public switched telephone network. The XE0002B provides high voltage isolation, independent on/off hook control, ring detection circuitry and a 2 to 4 wire converter hybrid for use in modem applications. It operated from 5 volt power supplies and occupies 1.25 square inches of board space.