[GreenKeys] How to mount reader power pack in ASR33 stand?

[Charles]

I have an ASR33 on a stand, and a separate 183079 reader power
supply (mounted with the 850 ohm resistor in a 182134 bracket).
There is a pictorial (a silver label inside the stand) showing
that the power supply should be located in the stand near the top,
with the Molex connector facing out/rearwards.

The p/s housing only has two #6 tapped holes about 3/4" apart on
the back side as well as a pair of thin slots at each end that
look like they might accept a mounting tab of some kind. But there
is no corresponding pair of holes or tabs anywhere in the stand or
the TTY base casting. How is this unit intended to be mounted? Am
I missing a bracket of some kind, or is this the wrong part?

thanks
Charles