Epson P07303 User Manual page 10

CN2: RS-232C connects to PC/Host
CN3: Connect to display panel
CN6: Power supply connector
CN1,CN4, CN5: No used
Power Supply Connectors
CN6 / Connector type: DC jack (5.5/2.1)
Pin assignment
No Signal
+ Vin
- GND
RS232C link to PC/HOST connector
CN2 / Connector type: D-sub 9 pin female
Pin assignment
No Signal Direction
2 RXD From PC/Host to display
3 TXD From printer to PC/Host
4 DSR From PC/Host to printer
5 GND -
6 DSR From display to PC/Host
8 DSR From display to PC/Host
RS232C link to printer connector
CN1 / Connector type: Phone-jack 10P/8C
Pin assignment
No Signal Direction
4,5 GND -
6 DTR From PC/Host to printer
7 DSR From printer to display
8 TXD From display to printer
9 RXD From printer to PC/Host
Display penal connector
CN3 / Connector type: Phone-jack 10P/8C
Pin assignment
No Signal Direction
2,3 Vin -
4,5 GND -
6 DSR From Printer to Display
7 DTR From Display to PC/Host
8 RXD From PC/Host to Display
9 TXD From Display to Printer
5 1
6 1
9 6
Function description
Receive data
Printer status data
PC/Host ready signal
Signal ground
Display/printer ready signal
Display/printer ready signal
10
Function description
Signal ground
PC/Host ready signal
Printer ready signal
Printing data
Printer status data
10
Function description
Power 9 – 33 Vdc
Signal ground
Printer ready signal
Display ready signal
Display/Printing data signal
Printer status data signal
6
1
1