User Manual
- 8 - 
DIN-Rail Mounting 
The aluminum DIN-rail attachment plate should already be fixed to the 
back panel of the EDS when you take it out of the box. If you need to 
reattach the DIN-rail attachment plate, make sure the stiff metal spring is 
situated towards the top, as shown in the figures below. 
STEP 1: 
Insert the top of the DIN
-Rail into 
the slot
 just below the stiff metal 
spring. 
STEP 2: 
The DIN
-Rail attachment unit will 
snap into 
place as shown below. 
To remove the EDS from the DIN-Rail, simply reverse Steps 1 and 2 
above. 
Wall Mounting (optional) 
For some applications, you will find it convenient to mount the 
EDS-205A/208A on the wall, as shown in the following figures. 
STEP 1:   
Remove the aluminum 
DIN
-Rail attachment plate 
from 
the EDS-205A/208A’s 
rear panel, and then attach 
the wall mount plates as 
shown 
in the diagram at the 
right.
STEP 2: Mounting the EDS-205A/208A on the wall 
requires 4 screws. Use the 
switch, with wall mount 
plates attached, as a guide to mark the correct 
locations of the 4 screws. The heads of the screws 
should be less than 6.0 mm in diameter, and the shafts 
should be less than 3.5
 mm in diameter, as shown in
the figure at the right. 
NOTE 
Before tightening the screws into the wall, make sure the screw 
head and shank size are suitable by inserting the screw into one 
of the keyhole-shaped apertures of the wall mounting plates. 
Do not screw the screws in completely—leave about 2 mm to allow room 
for sliding the wall mount panel between the wall and the screws. 










