The PCT6200 requires a stacking modules installed in Bay 1 ( XG1/XG2 ) at the rear of the switch. The stacking module uses CX4/Infiniband type cales for stacking. Front panel/user port stacking is not supported
 I am trying to stack two Dell Powerconnect 6248 switches. They are presently daisy chained together, but I have fiber modules for the front sfp ports. Theoretically I should be able to stack them. But when I try: console(config-stack)#stack-port 1/g45 stack Could not set Front Panel Stacking mode.  Any ideas? Thanks!
Powerconnect 6248 Stacking Using Front SFP Ports