The setup  in the optics hutch is sketched below. Details of specific elements are available by clicking on the parts. please note, that the x-ray beam is coming from the right from the insertion devices and the front end shutter.
 

safety 
shutter		 wire
monitor		 slit 2  Mirror 2  Mirror 1 Monochromator slit 2
heatload shutt.		 Att.

primary

slit
bst posz
posy		 s2vg
s2vo
s2hg
s2ho		 m2z
m2in
m2m		 m1z
m1in
m1m
m1y
m1yaw		 mono
monoz
monoa
monot1
monot2		 s1vg
s1vo
s1hg
s1hg
heatrot, heatz		   pvg 
pvo
phg
pho