Wiring expander
Number Description
1 Previous expander
2 Next expander
3 SPC controller
Most expanders are equipped with additional terminals 3A/3B and 4A/4B for branch expander wiring. See
Wiring of branch expander on page83 for instructions on branch expander wiring.
10.1.1 Loop configuration
NOTICE: The SPC42xx/43xx doesn’t support loop configuration (only 1 X-BUS port).
NOTICE: All expanders/keypads are fitted with a termination jumper by default. In loop configuration
it’s imperative to have these jumpers fitted.
SPC4xxx/5xxx/6xxx – Installation & Configuration Manual Wiring the system
© Vanderbilt 2018 76 A6V10276959-d
11.2018