DT Etherlink IV User Manual- 100 -7.2 Connector Description7.2.1 Ethernet Connector Type – RJ-45 (female), 8 pins.Pin No. Description1 Tx+ (transmit data)2 Tx- (transmit data)3 Rx+ (receive data)4 NC (not used)5 NC (not used)6 Rx- (receive data)7 NC (not used)8 NC (not used)7.2.2 SHDSL ConnectorType – RJ-45 (female), 8 pins.Pin No. Description1 NC (not used)2 NC (not used)3 SHDSL interface B4 SHDSL interface A5 SHDSL interface A6 SHDSL interface B7 NC (not used)8 NC (not used)7.2.3 E1 120 Ohm ConnectorType – RJ-45 (female), 8 pins.Pin No. Description1 E1 Input → CH1/2 Wire A2 E1 Input → CH1/2 Wire B3 NC (not used)4 E1 Output → CH1/2 Wire A5 E1 Output → CH1/2 Wire B6 NC (not used)7 NC (not used)8 NC (not used)7.2.4 E1 75 Ohm ConnectorType - BNC 75 Please order SA-ADAPT-E1B/E1U to convert RJ-45 connector to BNC.