Ricoh B079 - Boards; Fcu

BOARDS
SM 119 B547
Fax Option
B547
4.2 BOARDS
4.2.1 FCU
The FCU (Facsimile Control Unit) controls fax communications, the video interface
to the base copier’s engine, and all the fax options.
FACE (Fax Application Control Engine)
• CPU
• Data compression and reconstruction (DCR)
• DMA control
• Clock generation
• DRAM backup control
• Ringing signal/tone detection
FBI (FACE Bridge Interface)
• Interface between the PCI bus and the FACE
• DMA controll
Modem (R288F-29)
• V.34, V33, V17, V.29, V.27ter, V.21, and V.8
SG3 SG3
SRAM
(512 kB)
Flash ROM
(3 MB)
A
nalog
Circuit
V.34
MODEM
Monitor
Speaker
NCU
Function
Upgrade Unit
(512 kB)
DIMM
(32 MB)
DRAM
(8 MB)
FBI
CPU BUS
DMA BUS
MB VIFDCR
CPU
(RU30)
FACE
B360D510.WMF
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA