6 - 3
No. 99MBC032A
6. INTERFACE UNIT
6.1.2 Connections
(1) Connecting the RS-232C interface to a device specified as a terminal (DTE)
Example 1
Flow control method (handshake method controlled by CTS, DSR, DTR, and RTS signals)
1
2
5
6
7
8
3
4
9
1
2
5
6
7
8
9
3
4
SG
RI
RxD
DCD
CTS
TxD
DTR
DSR
RTS
SG
RxD
CTS
TxD
DTR
DSR
RTS
Signal name
Pin No.Pin No.
Signal name
LSM: specified as a terminal (DTE)
9-pin D-sub9-pin D-sub
Personal computer (PC-AT compatible)
specified as a terminal (DTE)
Example 2
Flow control method (handshake method controlled by CTS, DSR, DTR, and RTS signals)
1
2
5
6
7
8
3
4
9
1
2
5
6
7
8
20
3
4
FG
SG
TxD
DCD
CTS
RxD
RTS
DSR
DTR
SG
RxD
CTS
TxD
DTR
DSR
RTS
Signal name
Pin No.Pin No.
Signal name
9-pin D-sub25-pin D-sub
LSM: specified as a terminal (DTE)
Personal computer (PC-9801)
specified as a terminal (DTE)
Example 3 3-Wire method (teletype protocol using TxD, RxD and SG)
1
2
5
6
7
8
3
4
9
1
2
5
6
7
8
9
3
4
SG
RI
RxD
DCD
CTS
TxD
DTR
DSR
RTS
SG
RxD
CTS
TxD
DTR
DSR
RTS
Signal name
Pin No.Pin No.
Signal name
9-pin D-sub9-pin D-sub
LSM: specified as a terminal (DTE)
Personal computer (PC-AT compatible)
specified as a terminal (DTE)
