CAS PD-II - 4 The Schematics and Diagram; System Block Diagram

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4. The Schematics and Diagram
4.1. System Block Diagram
AC 220V
Transformer
Load
Cell
ADC Circuit
(Dual Sloop type)
KEY
(ZERO,TARE,Kg/Lb ,
POWER ON/OFF KEY)
C P U
ECR , POS System.
Power
Module
ECR Interface Circuit
RS-232C
Serial
Parallel Communication (4-Bit BCD)
25 pin D-SUB Connector
6-Digit VFD
VFD Driver (PT6311)
Wire 길이는 1.5 m 이내로 함
Display 부는 본체 및 Post 에 사용자가
간편하게 설치 하여 사용.
9 pin D-SUB Connector
SANYO,CASIO,ESPER,
SHARP,TEC ...etc