How to Change the Topology and Data Transfer RateThe DIP switches located on the controller allow you to change the topology and thedata transfer rate. To change settings, remove the controller from the disk array unitaccording to the instructions provided in Chapter 4. Referring to the figure below,locate the 3 DIP switches A9E2, A9E1 and A9D near the rear connector of thecontroller. Slide the bits using the tip of a ballpoint pen: Slide bit 3 to change the topology. Slide bit B to change the data transfer rate.Refer to Table A-2 on the next page for more information on the function of eachswitch.Rear of the controllerFigure A-1 Location of the Dip Switches on the Controller Board The topology and data transfer rate should be changed appropriatelydepending on connected devices. Ask your service representative toperform the operation. A certain time is required for confirming setting changes. Accordingly, besure to keep enough time for system interruption.A-6 Appendix
