UP-600, UP-700 (serv.man45). Documentation for Software Utilities - Sharp ECR Driver / Update. Page 2

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Outline
This Specification document describes the explanation about 
POSUTILITYTOOL.EXE
and "02FD.exe".
 
POSUTILITYTOOL.EXE
and "02FD.exe" works on Windows 95/98 of PC and they have the following
  Functions by connecting POS with RS232.
POSUTILITYTOOL.EXE :
IPL of POS Program Object
02FD.exe :
All RAM Data Upload/Download
(PC software tool instead of the current ER-02FD.)
Environment
PC and POS are connected by RS232. 
POS must use CH2.
Fig . Connection between PC and POS
  RS232 Cable Connecting:
[PC]
[POS]
3  TXD 
3  TXD
2  RXD
2  RXD
5  S.G.
5  S.G.
RS232
PC
POS
CH2
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