Can QSFP28 and SFP+ be directly connected over optical fiber? if not, what connection structure is required between Thor EVM and Lattice HSB?

Hello,
I am trying to connect an NVIDIA Thor EVM to a Lattice HSB.
What i want to confirm is whether a QSFP28 port and an SFP+ port can be connected directly over optical fiber.

My main questions are:

  1. Is direct connection possibel between QSFP28(Thor) and SFP+(HSB)?

    • Thor EVM QSFP28
    • Lattice HSB SFP+
    • Using optical transceivers and fiber only
  2. If direct connection is not possible, what is the correct or recommended structure?

If anyone has connected Thor EVM and Lattice HSB successfully, i would appreciate an example connection diagram or module P/N

Thank you