HP Switch zl2 Modules Installation Guide

17
Installing the Modules
Operation of these features depend on the port configurations being kept at
Auto. If the configuration is changed to one of the available fixed options (for
example, 100-Full Duplex), the port operates as an MDI-X port. In that case,
to connect the module to another switch or hub, use a crossover cable; to
connect to an end node, use a straight-through cable.