Hitachi RX - Page 44

●Input/output (I/O) specifications 4-23
Attachingscrew:inchscrew
ConnectoronEZJ110board:9-pinDsub-connector(plug)
IJprinter
SD
Output
#3
RD Input
#2
Externalunit
RD
SD
Transmission
Reception
SG SG
FG
#5
Cablelength:maximum5m
DTR
DSR
#4
#6
RTS
CTS
#7
#8
ON
1
SW1
ON
OFF
2 3 4 5 6 7 8
4.3.4-6 External communication (RS-232C)
External equipment is connected to the IJ printer by serial communication of RS-232C.
Pin No. Name Input/Output Remarks
1(NC) -
2 RD Input
3 SD Output
4 DTR - Connect with DSR by IJ printer side.
5SG -
6 DSR - Connect with DTR by IJ printer side.
7 RTS - Connect with CTS by IJ printer side.
8 CTS - Connects with RTS by IJ printer side.
9(NC) -
Turn OFF SW1-bit7 on EZJ 110 board.
●Do not bundle it together with heavy-current signals inside and outside the equipment
so that it will not be influenced by noise from a heavy-current signals (a connection
signal to the power supply, etc).
●Use a cable which is as short as possible.
CAUTION