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APP - 23 APP - 23
MELSOFT
A
PPENDICES
(2) For compact QC24(N)
(a) Example of connection to an external device that allows the
CD signal(No.1 pin) to be turned ON/OFF
Compact QC24(N) Side Personal Computer Side
Signal Name Pin No.
Cable Connection and Signal Direction
(Full-/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)
DC code control or DTR/DSR control is enabled by connecting the
QC24(N) to an external device as shown above.
(b) Example of connection to an external device that dose not
allows the CD signal(No.1 pin) to be turned ON/OFF
Compact QC24(N) Side Personal Computer Side
Signal Name Pin No.
Cable Connection and Signal Direction
(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)
DC code control or DTR/DSR control is enabled by connecting the
QC24(N) to an external device as shown above.