User Manual

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18.11 System Operation
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Memory control circuit
Analog unit
（1 unit per 2 ch）
Logic input
（Total 8 probes）
Stored
RAM
(16 M ）
LCD
Pre
amplifier
A/D
Photo
coupler
Pre
amplifier
A/D
Photo
coupler
CH
1
CH
2
Pre
amplifier
A/D
Photo
coupler
Pre
amplifier
A/D
Photo
coupler
CH 3
1
CH 3
2
9599
MEMORY
BOARD
（48 M）
32 bit
CPU
FD
9588
MO UNIT
(Option
)
PC CARD
SCSI
Printer
Control
GP-IB
CARD
RS-232C
CARD
LAN
CARD
(Option
)
(Option
)
Logic probe
Logic probe
LOGIC(CH
)
A
LOGIC(CH
)
H
PRINTE
R
CARD
Block Diagram
1
8.11 System Operation
System operation is explained according to the block diagram.
(1) All system operations are controlled by a 32-bit RISC CPU.
(2) The input units incorporates high-speed 12-bit A/D converters which are
connected to the main unit via a photocoupler integrated in each input unit.
Each channel has its own power supply, to assure electrical isolation from
the main unit.
(3) Measurement data stored in memory are processed by the CPU, displayed
on the LCD screen, and output to the printer. Output to floppy disk, MO
disk, PC card or SCSI is also provided.