Section 2 Engineering Guidelines Total Access 600 Series System Manual34 © 2004 ADTRAN, Inc. 61200624L1-1BLife Line Analog ConnectionThe LIFE LINE analog connection provides assured voice for port 1. If the unit loses power or goes intoalarm, the network voice service is inhibited and the on-board relay opens. The first port of the voiceconnector is provided with analog voice from the LIFE LINE analog connection. A regular POTS line mustbe plugged into the LIFE LINE port. Table 11 provides the LIFE LINE port pinout.DSX-1 InterfaceTable 12 provides the DSX-1 port pinout.The LIFE LINE analog connection is only available on Total Access 600 Series xDSLmodels.Table 11. LIFE LINE Connection PinoutPIN DESCRIPTION1,2 Unused3 Life Line Ring4 Life Line Tip5,6 UnusedThe DSX-1 interface is optional and must be requested at the time of order placement.Total Access 600 Series systems without the DSX-1 interface are not field-upgradeable toadd DSX-1 access.Table 12. DSX-1 Connection PinoutPIN NAME DESCRIPTION1 TX RING Transmit data toward the network (RING)2 TX TIP Transmit data toward the network (TIP)3, 6-8 —––––– Unused4 RX RING Receive data from the network (RING)5 RX TIP Receive data from the network (TIP)