Emerson 2468CD Manuel D’Utilisation

Opto-isolated Output Board Option  

Hydrastep 2468CB & 2468CD Manual 

The output board is mounted directly on top of the input board.  The input board is supplied 
with three nylon spacers fitted.  The output board is then aligned on its Berg socket/plug 
interconnection (PL1/SK1) and input board-mounted spacers and pressed home on to the 
spacers. 
 

The spacers lit into the holes within the white-bordered areas on the output board (see 
Figure 3c.1 on page 3c-6). 
 
1.  Fit the nylon spacers into their prepared holes on the 

output board and lock in position using the nylon 
washer and M4 nut, see inset diagram. 

 
2.  Fit the output board on to the spacers and check for 

correct alignment and adjust if necessary. 
 

 
 
 
 
 
 

 

WARNING 

Mains voltages are present in this instrument when power 
is connected.  De-energise before opening front cover. 

 
This task can be performed on a mounted 2468 electronic enclosure or the enclosure can be 
removed to a bench for the installation.  Here it is assumed that the enclosure is in its normal 
working location.  The procedure for mounting the output board is as follows: 
 
1.  Isolate the power supply from the 2468 electronic enclosure and open the instrument front 

cover. 

 
2.  If two output boards are to be fitted, make sure that the first output board to be fitted has 

had its nylon spacers fitted before installation.  Also ensure the first output board is fully 
configured before fitting the second output board. 

 
3.  Ease the pins of the Berg plug PL1 of the output board into the Berg socket SK1 on the 

input board, checking that the mounting holes on the output board (the holes which are 
not contained in white bordered areas) are aligned over the fitted spacers and gently 
press the output board ‘home’ until the spring-loaded spigot on each spacer is locked 
firmly on to the output board. 

 
Note:  When fitting a second output board, use the same procedure described in operation 3 

but refer to the components, etc., on the mounted output board. 

 
This concludes the mechanical installation of the output board(s) and should be followed by 
the electrical installation, If the latter is not to be carried out in the immediate future then the 
power supply can be reconnected.