{}

Our Brands

Search FAQs

Behavior for individual outlet group shutdowns with UPS Interface Expander 2 SmartSlot Card (AP9624)



Issue

The behavior for individual outlet group shutdowns with UPS Interface Expander 2 (AP9624) needs to be understood. This behavior is not currently explained in the Interface Expander 2 User's Guide.



Product Line

Environment
  • All serial numbers
  • UPS types with outlet groups

Cause

There may be some confusion regarding shutting down individual outlet groups in a system where the Interface Expander 2 is installed in the SmartSlot. Note, some configuration information and shutdown scenarios are also documented in knowledge base article ID FA176957.


Resolution

There is no configuration interface for the Interface Expander 2 other than the DIP switches used to set the shutdown mode. Therefore, the Interface Expander 2 cannot be associated with or assigned to a particular outlet group of the UPS. As a result, the design for the Interface Expander 2 behaves as follows:
  • If the entire UPS is shutting down, then the Interface Expander 2 will start its shutdown.
  • If only a particular outlet group is shutting down, the Interface Expander 2 will not start its shutdown.

Thus, outlet groups that have Interface Expander 2 simple signalling clients connected to them should never be controlled individually but should instead be controlled as part of the entire UPS.


APC Belgium

Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.