SeeMeCNC Rostock MAX v2 Assembly Manual page 189

Finally, we've got the connector for the Onyx heated bed.
Fig. 18-17:Heat2Bed location.
Bring the 18ga Onyx heated bed wires to the front of the machine and trim the same as the
others. Strip 1/4" off the ends and insert into the terminal block position marked Heat2Bed.
When completed, your terminal block should look exactly like that shown below.
If you've got a Rev5 Onyx heated bed with the hot end power LED, you'll need to insert the
white & green wires from the bed into the Heat 0 position on the terminal block as shown:
Just make sure you do a neater job
of it than I did. :)
Rostock MAX v2 Assembly Guide
Fig. 18-18:Finished terminal block wiring.
Fig. 18-18A: Hot end power LED connection.
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