The 2145 UPS provides a SAN Volume Controller 2145-4F2 node with a secondary power source if you lose power from your primary power source due to power failures, power sags, power surges, or line noise.
The SAN Volume Controller 2145-4F2 node can operate with either the 2145 UPS or the 2145 UPS-1U. For information about the 2145 UPS-1U, see 2145 UPS-1U.