2-4  User’s Reference Guide
The following table describes all the Netopia R3100 ISDN Router back panel ports.
Port  | Description  | 
  | 
  | 
  | 
  | 
Power port  | A   | 
Line or Telco port  | A   | 
  | the “Telco 1" or “Line 1" port, NOT “Telco 2" or “Line 2."  | 
  | 
  | 
Console port  | A   | 
  | can use this if you are an experienced user and don’t want to use the preset  | 
  | 192.168.1.1 IP address in the router. See “Connecting a local terminal console  | 
  | cable to your router” on page  | 
  | 
  | 
Auxiliary port  | An   | 
  | AppleTalk kit.  | 
  | 
  | 
Crossover switch  | A crossover switch with Normal and Uplink positions. If you use Ethernet Port  | 
  | #1 for a direct Ethernet connection between a computer and the router, set the  | 
  | switch to the Normal position. If you are connecting the router to an Ethernet  | 
  | hub, use Ethernet port #1 on the router and set the switch to the Uplink  | 
  | position.  | 
  | 
  | 
Eight Ethernet jacks. You will use one of these to configure the Netopia R3100.  | |
  | For a new installation, use the Ethernet connection. You can either connect your  | 
  | computer directly to any of the Ethernet ports on the router, or connect both  | 
  | your computer and the router to an existing Ethernet hub on your LAN.  | 
  | Alternatively, you can use the console connection to run   | 
  | management using a direct serial connection.  | 
  | 
  | 
S/T Termination  | Netopia R3100 S/T models also provide an S/T termination switch. The S/T  | 
switch  | termination switch on the Netopia R3100 back panel must be enabled to  | 
  | terminate the S/T bus. To enable this parameter, the switch must be toggled to  | 
  | the left.  | 
  | 
  |