Hitachi IJ UX - Page 116

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[Specification of RS-232C communication connector]
- External equipment is connected to the EZJ129 by serial communication of RS-232C.
-Signal used : RD,SD,DTR,SG,DSR,RTS,CTS
-Wiring ( NC is No connection )
Pin number
Name
Input / Output
Remarks
1
(NC)
-
No connection
2
RD
Input
3
SD
Output
4
DTR
Output
5
SG
-
Ground
6
DSR
Input
7
RTS
Output
8
CTS
Input
9
(NC)
-
No connection
#1
#5
#9
Circuit board side
connector: 9 pin D-sub connector (plug)
#6
Attaching screw: inch screw
External device IJ Printer
SG
#5
SG
#8
CTS
Input
RTS
#7
RTS
Output
CTS
#6
DSR
Input
DTR
#4
DTR
Output
DSR
Input
RD
#2
SD
RD
Output
SD
#3
Cable length : maximum 5m
FG
Send data
Receive data