Siemens SPCK421 Specifiche Pagina 41

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Wiring the system
9
Wiring the X-BUS interface
41
Siemens AB
A6V10276959
Security Products
18.11.2011
2A
2B
1A
1B
2A 2B 1A 1B
1A 1B 2A 2B
1
2
3
Wiring expander
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 page [➙ 49] for instructions on branch expander
wiring.
9.1.1 Loop configuration
NOTICE
4000
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.
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