Boards
SM 169 D418
Fax Option
Type 9001
D418
5.2 BOARDS
5.2.1 FCU
The FCU (Facsimile Control Unit) controls fax communications, the video interface to the
base copier’s engine, and all the fax options.
FACE3 (Fax Application Control Engine)
CPU
Data compression and reconstruction (DCR)
DMA control
Clock generation
DRAM backup control
Modem (FAME)
V.34, V33, V17, V.29, V.27ter, V.21, and V.8
DRAM
The 16 MB of DRAM is shared as follows.
SAF memory: 4MB
Working memory: 4MB
Page memory: 8MB
The SAF memory is backed up by a rechargeable battery.
Memory Back-up
A rechargeable battery backs up the SAF memory (DRAM) for 1 hour.
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