Issue
What are the recommendations/limitations around using RDM2 and mRDM2 Reader Expander Modules on SP-ACX and SP-AC1 controllers?
Product Line
Security Expert
Environment
- SP-ACX
- SP-AC1
- RDM Expander Modules
Cause
The number of RDM2 and mRDM2 modules which can/should be used on an SP-C/SP-C-Web is well documented, but it is not so clear what limitations exist when using these modules on other SP Controllers.
Resolution
While SP-ACXs and SP-AC1s have not historically supported SP_RDM2 modules in the past, it is now supported going forward, as detailed in Architectural Guide Lines Security Expert - 4.3.322 available on The Exchange.
This will also receive an official 'new feature' announcement for Security Expert 2023 when it is released later this year. (Assume controller firmware of 2.08.1320 minimum)
Legacy Continuum AC1 Modules and Security Expert RDM modules have to be used on separate ports and care must be taken when adding new RDM modules as this runs the risk of overtasking the controller, especially when approaching maximum door limits. SP-ACXs and SP-AC1s are primarily designed as transitional controllers to allow Continuum ACXs and Continuum NetControllers to be transitioned smoothly into a new Security Expert system.
