Rs485 Bus Topologies; System Overview - CDVI A22K Manual Del Usuario

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RS485 BUS TOPOLOGIES

The A22K has an RS485 LOCAL BUS terminal allowing the connection with an ATRIUM expander module. The
RS485 LOCAL BUS communication is up to 1220 m (4000 ft) maximum distance. One A22K can support up to four
A22K expansion modules. Refer to "Module type configuration (controller or expander)" on page <?> to set an
A22K as an expander.
Connect the expander modules using these topologies:
A22K
A22K
A22K
cdvigroup.com
MIXED
DAISY CHAIN/BUS/STAR
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A22K
A22K
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A22K
STAR
High Security Access Control 2-Doors Module
cdvigroup.com
cdvigroup.com
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A22K
cdvigroup.com
A22K
cdvigroup.com
A22K
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A22K
A22K
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A22K
A22K
BUS
A22K
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A22K
A22K
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DAISY CHAIN
A22K
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A22K
A22K
cdvigroup.com cdvigroup.com cdvigroup.com
A22K
A22K
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