EXPANDER MODULES TO THE CONTROLLER
The A22POE has a RS485 LOCAL BUS terminal allowing the connection with the ATRIUM expander module. The
RS485 LOCAL BUS communication is up to 1220 m (4000 ft) maximum distance. One A22POE can support up
to four A22POE expansion modules. Refer to “Module type conguration (controller or expander)” on page 15
to set an A22POE as an expander.
Connect the expander modules using these topologies:
cdvigroup.com
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