I guess we'll try. Yes HWU doesn't show any type of bidi.
I'm by no means an EMC fan, but they're good to go:
Dell EMC enables cost-savings through the reuse of a legacy 10GbE fiber plant to support new 40GbE
connections with our 40GbE duplex (multimode) fiber solutions. These solutions use wavelength
multiplexing (SM4) and/or directional multiplexing (BIDI) to transport 40GbE over a single (multimode)
fiber pair.
http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/Dell-Networking-Optics-Spec-Sheet.pdf