Hitachi IJ RX2 Service Manual page 100

[External communication (RS-232C)]
- Connector for external communication (RS-232C) is mounted on EZJ127A board.
- Using signals: SD, RD and SG
- Signal specification (NC: Unconnected)
Pin number
1
2
3
4
5
6
7
8
9
Connector on EZJ127 board: 9-pin D-sub connector (Plug)
Send data
Receive data
The control signals
are looped back on
EZJ127 board.
- Connector position: Inside the top cover (upper part of cabinet)
EZJ119A board
(Option)
Name Input/Output
(NC) -
RD Input
SD Output
DTR -
SG -
DSR -
RTS -
CTS -
(NC) -
1#
5#
9#
6#
IJ Printer
Output
SD
#3
Input
RD
#2
Output
DTR
#4
Input
DSR
#6
Output
RTS
#7
Input
CTS
#8
#5
SG
Cable length : maximum 5m
Terminal block
(M4 screw)
TB2 (Option)
3-25
Remarks
Unconnected
Connected to DSR on IJ printer
Ground
Connected to DTR on IJ printer
Connected to CTS on IJ printer
Connected to RTS on IJ printer
Unconnected
Attaching screw: Inch screw
External device
RD
SD
EZJ127 board
Connector for
communication
(RS-232C)
Terminal block
(Push type)
TB1
SG
FG
CN3