2-13360-A2-GB20-10 June 1996InstallationOverview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Application Examples 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SNMP Connection Examples 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Important Instructions 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Optional Power Sources 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Installing the +24 Vdc Power Supply 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Installing the Single – 48 Vdc Power Supply 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Installing the Redundant – 48 Vdc Power Supply 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cabling Examples 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Power-Up Self-Test 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OverviewThis chapter contains information for installing yourE1 NTU. It includes application examples, cabling, andpower-up information.Application ExamplesThe E1 NTU acts as an interface between a Highbit-rate Digital Subscriber Line (HDSL) network and thecustomer’s equipment.The E1 NTU is connected to the customer’s equipmentthrough one of the synchronous data ports (PORTs 1– 4)or the G.703 DTE port. It is connected to the networkthrough the HDSL Network interface.The E1 NTU normally operates in conjunction with aLine Termination Unit (LTU) that is installed in anACCULINK Access Controller (AAC).Some common applications for the E1 NTU are:• Shared access to network-based services(Figure 2-1).• Point-to-Point LAN interconnection (Figure 2-2).• Fractional E1 network applications (Figure 2-3).NETWORKSERVICESPBXLANROUTER 495-14736NTUParadyneHDSL AACLTUFigure 2-1. Shared Access Application Example2