Attaching a | You can attach your SuperStack II bridge/router to a SuperStack II | |||
Redundant Power | Redundant Power System (RPS). You will need to order the connecting | |||
System | cable (part number 3C8101) from 3Com. The following figure shows | |||
| where to attach this cable. | |||
| Rear panel of unit |
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Attach RPS cable here
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 hardware 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 you will need to 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.