Issue
Controller labelling and documentation does not describe how to connect expander modules or which modules are supported.
Product Line
EcoStruxure Security Expert
Environment
- Security Expert
- SP-ACX
- SP-ACX-V2
- SP-O8
- SP-I16
- SP-MRDM2
- SP-RDM2
- SP-I01
- SP-IO84
- SP-MI16
Cause
Documentation is scheduled to be updated but due to UL certifications for some of these documents the process may take some time to complete.
Resolution
- Expander modules are able to be connected to the SP-ACX and SP-ACX-V2 controllers. There is no restriction to the type of Expander Module, all modules are supported unless specifically stated that they are not.
- The Expander Module network is connected to the RS-485 port on the right-hand side of the controller just above the Digital Outputs port. This port should be labelled with N+, N-, NA, NB and is to be wired up as per the below diagram.
Expander Module RS-485 port
