Gestetner G060, Руководство по обслуживанию

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BOARDS
G307 4-2 SM
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.
FACE2 (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 control
Modem (R288F-29)
•
V.34, V33, V17, V.29, V.27ter, V.21, and V.8
S G 3 ISDN
S R A M
(256 kB)
F l a s h R O M
( 2 M B )
A n a l o g
Circuit
V . 3 4
M O D E M
Monitor
S p e a k e r
N C U
Function
Upgrade
Unit
(512 kB)
D I M M
(32 MB)
D R A M
( 8 M B )
F B I
CPU BUS
DMA BUS
F C U I F V I F D C R
C P U
( R U 3 0 )
FACE2
M B U
G307D510.WMF