The ISDN card (SX2 QuadBRI or SX2-express QuadBRI) has to be configured with jumpers and DIP switches before can be installed into the computer.

The operating mode (TE/NT) and the bus termination must be configured for each line of the SX2 QuadBRI or SX2-express QuadBRI before insertion.

Requirement for further description: Requirement for further description: The SX2 QuadBRI or SX2-express QuadBRI is directly in front of you, with the PCI plug strip facing down and the S0 connections to the left.