APC NBRK0550 User Manual

Select a device from the Output Control Configuration window and click External Ports. To modify 
devices connected to your output control devices:

1. Select the output control action to assign to the corresponding port from Relay Output Type.

Note: Output control actions do not apply for devices wired between the NO and NC 
terminals. These devices have an always open state.

The following output control actions are available when the output control device is wired 
between the NO (Normally Open) and COM terminals on the appliance:

None

No output action is associated with this port.

One-Second Button 
(NC)

When activated, a normally closed (NC) relay is switched to an 
open state for 1 second, and then switched back to closed.

One-Second Button 
(NO)

When activated, a normally open (NO) relay is switched to a 
closed state for 1 second, and then switched back to open.

Switch (NC)

When activated, a normally closed (NC) relay is switched to an 
open state.

Switch (NO)

When activated, a normally open (NO) relay is switched to a 
closed state.

Ten-Second Button 
(NC)

When activated, a normally closed (NC) relay is switched to an 
open state for 10 seconds, and then switched back to closed.

Ten-Second Button 
(NO)

When activated, a normally open (NO) relay is switched to a 
closed state for 10 seconds, and then switched back to open.

Reboot Button

When activated, power to the outlet is interrupted for 10 seconds, 
and then restored.