8 U02124ML-01-UK 
SECTION 4 
CONFIGURATION/MECHANICAL INSTALLATION 
 
4.1 AC POWER SELECTION JUMPERS 
 
For 230V AC operation, link W1 should be installed (Remove links W2 and 
W3 if fitted). For 115V AC operation, links W2 and W3 should be installed 
(Remove link W1 if fitted). 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 4-1 Jumper on Power Transformer 
 
AC POWER CONNECTIONS 
 WIRE COLOUR 
AC POWER  EUROPE  USA 
AC POWER HI  BROWN  BLACK 
AC POWER LO  BLUE  WHITE 
AC POWER GBD  GREE/YELLOW  GREEN 
 
4.2 MODULE ADDRESS
 
 
To set module address, baud rate and mode the front lens of the module must 
be carefully removed with a thin bladed screwdriver, to gain access to the DIP 
switches (Figure 4-2) 
 
 
 
 
 
 
 
 
 
 
Figure 4-2 DIP Switches
Note 
For DIP switches 1-8  
UP = 0 
DOWN = 1