Issue
Understanding the EP1501 and LP1501 downstream device limitations
Product Line
EcoStruxure Access Expert
Environment
Access Expert Hosted V3
Cause
Downstream device limitations determine how many upstream controllers are required when using these controllers
Resolution
When choosing to use the EP1501 or LP1501, knowing the limitations of the downstream devices plays an important part in determining the number of controllers needed for a job.
The limitation is 8 I/O devices, so if the downstream controller is an MR 50 then a total of 9 readers including the onboard reader can be utilized.
Keep in mind that no matter what the mixture is, including MR51e's or MR52's, a total amount of 17 readers can be used or licensed on these controllers
