Nellcor N-395 Operator's Manual page 22

GCX Poly-mount (horizontal wall inount with rail adapter)
An optional horizontal wall mount with rail adapter is available
from Mallinckrodt for the N-395.
The horizontal wall inount with rail adapter attaches to the N-395
monitor GCX mounting plate as shown in Figure 5. For further
instructions regarding connecting the horizontal wall mount with
rail adapter, refer to the illustrated directions for use included
with horizontal wall inount with rail adapter.
Figure 5: GCX Poly-mount (horizontal wall mount with
rail adapter)