Mitsubishi Electronics SW3D5C-ACT-E ユーザーズマニュアル
APP - 24 APP - 24
MELSOFT
APPENDICES
Appendix 3.3 Q Series
The connector specifications are indicated below.
Pin No.
Signal Code
Signal Name
Signal Direction Q series-
compatible C24 external device
1
CD
Receive carrier detection
2 RD(RXD)
Receive
data
3 SD(TXD)
Send
data
4
DTR(ER)
Data terminal ready
5 SG
Send
ground
6
DSR(DR)
Data set ready
7
RS(RTS)
Request to send
8
CS(CTS)
Clear to send
9 RI(CI)
Call
indication
(1) Connection example which can turn ON/OFF CD signal (No.1 pin)
Q series -compatible C24
Personal Computer
Side
Signal Name
Pin No.
Cable Connection and Signal Direction
(Connection example for full duplex/half
duplex communication)
Signal Name
CD 1
CD
RD(RXD) 2
RD(RXD)
SD(TXD) 3
SD(TXD)
DTR(ER) 4
DTR(ER)
SG 5
SG
DSR(DR) 6
DSR(DR)
RS(RTS) 7
RS(RTS)
CS(CTS) 8
CS(CTS)
RI(CI) 9
(2) Connection example which cannot turn ON/OFF CD signal (No.1 pin)
Connection example for exercising DC code control or DTR/DSR control
Q series -compatible C24
Personal Computer
Side
Signal Name
Pin No.
Cable Connection and Signal Direction
(Connection example for full duplex
communication)
Signal Name
CD 1
CD
RD(RXD) 2
RD(RXD)
SD(TXD) 3
SD(TXD)
DTR(ER) 4
DTR(ER)
SG 5
SG
DSR(DR) 6
DSR(DR)
RS(RTS) 7
RS(RTS)
CS(CTS) 8
CS(CTS)
RI(CI) 9