Black Box 1102, 1101 manual Managed UPS Connections, Serial, USB, or Network Connections Managed

Chapter 8: Power Management

LES1102A

Multiple local (serial USB

networked) UPSes

Managed UPS LES1102A

Multiple remote	Remote UPS
UPSes

Figure 8-5. Connecting to remote UPS.

8.2.1 Managed UPS Connections

A Managed UPS is a UPS that is directly connected as a Managed Device to the console server. You can connect it via serial or USB cable or by the network. The console server becomes the master of this UPS, and runs a upsd server to allow other computers that are drawing power through the UPS (slaves) to monitor the UPS status and take appropriate action, such as shutdown when the UPS battery is low.

Serial, USB, or

network

connections

Managed

UPS

Figure 8-6. Managed UPS connections.

The console server may or may not be drawing power itself through the Managed UPS. When the UPS’s battery power reaches critical, the console server signals and waits for slaves to shut down, then powers off the UPS.

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