1-5. SBU (Sensor Board Unit)
This unit has a CCD which scans the document and detects light path blockage by the document/scan line sensor
actuators.
1-6. OPU (Operation Panel Unit)
This unit receives all keypad input information and indicates instructions for users using LEDs and an LCD
(RF02F/FAX240F). The ten key pad is still available for dialling even if the main power is switched off.
1-7. HSB (Hook Switch Board)
This board has a hook switch and a ringer.
2. Data Flow
2-1. Transmission
Data/Address Bus
AFE
DSP
(Modem)
SRAM
FIFO
Line
Buffer
DRAM
(ECM:128kB)
DRAM
(SAF:128kB)
KFCP
EIO2
DCR
P/S
Digital Video Process
Analog Video Process
SBU
T/H
FCE
FDU
HIC2
AVM ROM
Voice
Processor
LIU
LINE
RF02F/FAX240F only
C-2