Figure 16: Module configuration 
 
“Master” module selection 
Set the module on which the relay alarms are wired in “Master” mode: switch 3 
ON and switch 4 OFF. 
Caution: A column is composed of 1 “Master” module and 1 to 3 “Slave” 
modules. “Master” module can be positioned anywhere within the column: 
position 1, 2, 3 or 4. If “Master” is installed in position 1, it is not possible to use 
the mono-detection of the bottom beam (see “Mono-detection of the bottom 
beam (optional)” on page 20) for more details. 
Figure 17: “Master” mode selection 
 
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SB Series AIR Beam Detectors Installation Manual