There are slots located on the rear (all 600 series) and sides (670/675) of the unit where the bracket can be attached using the provided screws (screw directly into the slot).
Below is the mount on the TBL675 rear:
And now on the TBL675 side:
DIN-mounting Bracket (product code TBMBD1) can be used together with Tosibox 610 and Tosibox 650 to mount them sideways on standard DIN rail.
Here is s picture of sideways DIN rail and attached 600 series Tosibox
