Managing Dual TCP/IP Connections
Dual TCP/IP is an option that can be purchased for the SL8500 and SL3000. It provides two TCP/IP connections to the libraries. However, you can continue to use the libraries with only one of the two connections operational.
The purpose of dual TCP/IP is to automatically recognize and avoid a failing communication path. Since this is automated, there is no need for you to manually switch from an inoperative connection. For more information, see Dual TCP/IP Support.