Samsung OfficeServ 7200 Installation Manual page 13

OfficeServ 7200 Installation Manual
AC Power
Use the stable power for the AC power of the system.
Temporary power failure caused by the unstable power supply may cause system
fault or battery failure.
Mounting or Dismounting a Board
Before replacing a board which can be mounted or dismounted while the system
is operating, make sure to disconnect the cables connected at the front of the
system. Make sure to mount a new board into the slot 10 seconds after
dismounting the old one.
Caution for PoE Power Supplying When Operating the System with Battery
Power due to a Power Failure
When the system is operated with an external battery power due to a power
failure, the battery voltage drops gradually as time goes on.
If it drops below -45 V, the PoE power supplied to IP phones become blocked. But
other cards operate normally until the battery power drops to -42 V.
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