3Com SuperStack II, NETBuilder SI manual Attaching a, Redundant Power System RPS

38CHAPTER 3: INSTALLING THE HARDWARE

Attaching a	You can attach your SuperStack II bridge/router to a SuperStack II
Redundant Power	Redundant Power System (RPS).
System
	SuperStack II bridge/router
Wall outlet
	SuperStack II Redundant Power System
	Power cable

RPS cable

Power cable

For full power supply redundancy, attach one end of the RPS cable to the rear panel on the bridge/router and the other end to the RPS. Then attach one end of the power cord to the rear panel on the bridge/router and the other end to a power outlet.

In this configuration, the internal supply provides power. If the internal supply fails or is switched off, or if there is a power failure, the RPS is activated and the bridge/router reboots.

To reset a bridge/router in this configuration, turn the power off, wait 5 seconds and turn it back on. The bridge/router switches to the RPS, then switches back to the internal supply to reboot.

CAUTION: For system susceptibility protection, always leave the AC cord attached to the bridge/router and to a power outlet.

Internal power supply failure is rare. If it occurs, the power switch on your bridge/router will not operate. To reboot, unplug the RPS cable and then plug it back in. Replace your bridge/router with another bridge/router that has a functioning internal power supply as soon as possible. Contact your 3Com representative to replace your bridge/router.