Cisco 1601 Hardware Installation Guide - Page 110

Using POTS Splitters and Microfilters with an ADSL-over-POTS WIC (WIC-1ADSL) DSL Interface Cards To connect the Cisco HWIC-4SHDSLwith a DSLAM that supports two or four RJ-11 connections, modify the standard RJ-45 cable, using one of the following diagrams as applicable: • Figure 72 shows how to modify the cable and connect the Cisco HWIC-4SHDSL with a DSLAM that supports four RJ-11 cable connections. • Figure 73 shows how to modify the cable and connect the Cisco HWIC-4SHDSL with a DSLAM that supports two RJ-11 cable connections. Figure 72 Pin 8 Pin 7 Pin 6 RJ45 Pin 5 Pin 4 Pin 3 Pin 2 Pin 1 Standard RJ-45 Connector to Four Standard RJ-11 Connectors Pin 4 Pin 3 RJ11 (line 3) Pin 4 Pin 3 RJ11 (line 2) Pin 4 Pin 3 RJ11 (line 0) Pin 4 Pin 3 RJ11 (line 1) 155563 Figure 73 RJ45 Pin 8 Pin 7 Pin 6 Pin 5 Pin 4 Pin 3 Pin 2 Pin 1 Standard RJ-45 Connector to Two Standard RJ-11 Connectors Pin 5 Pin 4 Pin 3 RJ11 Pin 2 155564 Pin 5 Pin 4 Pin 3 Pin 2 RJ11 Using POTS Splitters and Microfilters with an ADSL-over-POTS WIC (WIC-1ADSL) POTS splitters and microfilters apply to the ADSL-over-POTS WIC only. They are used on telephone lines to ensure voice- and data-call quality. POTS splitters result in the best data and voice performance when the router and the telephone are used on the same telephone line. POTS Splitters A POTS splitter (also called a splitter) is installed on a telephone line that is connected to both data (high-frequency) and voice (low-frequency) devices. The splitter routes the high-frequency and low-frequency signals on the telephone line to the correct device. Signals intended for the router can disrupt voice calls; signals intended for voice calls can affect router operation. Most splitters must be installed by the telephone company; however, some splitters can be installed by the customer. If you are not sure what type of splitter to use, contact your service provider. OL-12846-01 14