APC AP9607 User Manual

10

The Interface Expander generates a Low Battery signal 
when it detects a Low Battery condition at the UPS, regard-
less of whether the UPS is on battery. The Interface 
Expander generates a Low Battery signal under certain 
other conditions according to the configured shutdown 
mode (see “Configuring the Interface Expander” on page 
19), when it may force a Low Battery signal and an On Bat-
tery signal, causing the servers to shut down.

When a server connected to the (Advanced) computer inter-
face port on the UPS is running UPS-monitoring software 
such as PowerChute plus, you can execute scheduled or 
supervised UPS shutdowns for the servers connected to the 
Interface Expander. The Interface Expander intercepts the 
shutdown signal and sends the following messages to all 
attached servers or devices:

• On Battery and Low Battery signals (for the low-bat-

tery duration set in the UPS)

• Shutdown commands (e.g., Sleep, Turnoff, etc., as 

requested by PowerChute plus)

The servers connected to the Basic ports to shut down 
gracefully before they lose power when the UPS output is 
turned off—a feature normally available only to servers 
using PowerChute plus and smart signaling.