UPS (Uninterruptible Power Supplies)
CLON cluster equipped with two big UPSes from APC Corporation. These UPSes are multi-battery systems. In case of something wrong with UPSes follow the instruction of UPS Troubleshooting.
Smaller UPSes ...
All UPSes are connected to emergency generator.
All connections (ether via Web interface or SSH) allowed only from local subnet.
web link to http://UPS_CHB1/ (device/apc)
web link to http://UPS_CHB2/ (device/apc)