Liebert  PSI  is  a  compact,  line-interactive  UPS  system  designed  especially  for  IT  applications  such  as  network  closets  and  small  data  centers.  It  provides  reliable  power  protection  for  servers,  critical  nodes,  network  workstations,  large  network  peripherals,  network  routers,  bridges,  and  other  electronic  equipment.Line  interactive  design  with  sinewave  output  Up  to  9  battery-backed  sockets  USB  and  network  communications  Advance  early  warning  shutdown  Ample  battery  backup  time  to  grant  orderly  server  shutdown  Configurable  input  voltage  window  (220,  230,  and  240V)  Data-line  surge  protection  Cold-start  on  Battery  Remote  UPS  monitoring  through  SNMP/Web  card  Fully  RoHS  compliantBenefits:Liebert  PSI  is  designed  and  packaged  for  flexibility  and  high  availability  0.9  output  power  factor  for  active  power  maximization  Up  to  4  minutes  backup  time  at  full  load,  more  than  enough  to  grant  orderly  OS  shutdown  User  replaceable,  hot-swap  batteries  for  increased  availability  Versatile  rack-tower  design  which  adapts  to  all  types  of  installations  Rotatable  LED  display  which  adapts  to  both  rack  and  tower  mounting  Mounting  hardware  and  shutdown  software  included  in  UPS  package  for  increased  ease  of  use