Rs-232 Interface Pin Configuration; Connector Pin Assignment And Signal Description - Toshiba B-EV4 Series Manual

(14) RS-232 Interface pin configuration

Host Function
RxD
TxD
DTR
GND
DSR
RTS
CTS

(15) Connector Pin Assignment and Signal Description

Signal
Pin No.
Name
1 +5V Provide the power of 5V
2 TxD Transmit data
3 RxD Receive data
4 DSR Data set ready
5 GND General Ground
6 RDY Printer ready
7 N/C Not connected
8 RDY Printer ready
9 +5V Provide the power of 5V
9 Pin 25 Pin
2 3
3 2
4 20
5 7
6 6
7 4
8 5
Function
- 5 -
9 Pin Printer Function
1 +5V
2 TxD
3 RxD
4 DSR
5 GND
6 RDY
7 N/C
8 RDY
9 +5V
Signal Direction
Printer →
Printer →
Printer →
← Host
← Host