Ronan X120 - Manual (Page 8)

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After clearing all the windows, all the bad input channels would be reported (if there is any) only if SW2-7 was set
to the ON position. The alarm summary would be reported next, followed by this data:
4.0 CONFIGURATIONS
The X120 multiplexers can be connected to the X110 system in two different ways (parallel & serial) and J2, J3,
J4, J5 burg jumpers have to be set differently for each X120 in different configurations.
4.1 Parallel Configuration
Only one X120 is connected to the X110(s) in this configuration and J2, J3, J4 and J5 burg jumpers are
used (installed).
4.2 Serial Configuration
Two to thirty-two X120s can be connected together serially in this configuration. Only J2 & J3 on the
first X120 and J4 & J5 on the last X120 are installed. J2, J3, J4 and J5 should not be installed on any
X120 between first and last.
Figure 2 shows how the X120s are connected serially.