Grass Valley PFR 500/E Dec 12 2002 - Manual (Page 17)

PFR500/E components
20 September 2002 PFR 500/E Instruction Manual 17
NOTE: Every PFR 500/E RAID controller includes a backup battery so that if
electrical power is lost, data stored in cache memory will be saved. Data store cache
is not used in the PFR 500/E, so the Battery Backup module is not used, even
though it ships as part of the LBB module.
Fan Module A
Chassis
Power Supply A
Fan Module B
Power Supply B
LBB B
LBB A
GBIC
Battery Backup
Unit (BBU)
8136-5