Installing the IpChannel Bank 30SmartNode 4900 User Manual 3 • Hardware installation3. Select and attach the appropriate twisted-pair from each FXS device on punch-down blocks for connectionto the chosen port on the IpChannel Bank.Connecting the Ethernet portsThe IpChannel Bank has dual 10/100 Ethernet interfaces. One is for the WAN connection. The other is forconnecting to your Ethernet LAN. The Ethernet ports will auto-sense the correct speed of the local LAN andautomatically negotiate to half- or full-duplex operation. This section describes connecting the IpChannelBank to the Ethernet LAN via an Ethernet hub or switch.Connecting the 10/100Base-T Ethernet ports to an Ethernet switch or hub. The 10/100Base-T Ethernetport is designed to connect to an Ethernet switch or hub with a straight-through or cross-over Ethernet cable.The Ethernet RJ-45 pin and signal definitions for the SN4900 or for a NIC card in a workstation/PC areshown in figure 7. Connect a CAT-5 cable (one wired as shown in figure 8 or figure 9) between the SN4900and the hub/switch.Figure 7. Model SN4900 Ethernet portFigure 8. Straight-through RJ-45-to-RJ-45 Ethernet cable diagramFigure 9. Cross-over RJ-45-to-RJ-45 Ethernet cable diagramRJ-45 Jack(TX+) Transmit Data +(TX-) Transmit Data -(RX+) Receive Data +45(RX-) Receive Data -7812345678DirectionSignal Name3126OutputOutputInputInputSN4900RJ-45 Pin No.HubRJ-45 Pin No.(TX+)(TX-)(RX+)(RX-)1236(RX+)(RX-)(TX+)(TX-)1236SN4900 10/100Base-T PortRJ-45 Pin No.PC 10/100Base-T PortRJ-45 Pin No.(TX+)(TX-)(RX+)(RX-)1236(RX+)(RX-)(TX+)(TX-)3612
