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9 pin D-SUB female connector layout
9 pin D-SUB female connector
at the computer
For most of models Epson printers
computer Pin
Name		computer Pin
Number		DirectionEpson printer Pin
Number		Epson printer Pin
Name		Description
Receive Data (RxD) 2 <-- 2 Transmit Data (TxD)  
Transmit Data (TxD) 3 --> 3 Receive Data (RxD)  
Data Terminal Ready (DTR) 4 --> 6 Data Set Ready (DSR)  
System Ground (SG) 5 --- 7 System Ground (SG)  
Data Set Ready (DSR) 6 <-- 20 Data Terminal Ready (DTR)  
Clear To Send (CTS) 8 <-- 4 Request To Send (RTS)  

25 pin D-SUB male connector layout
25 pin D-SUB male connector
at the Epson printer
Pinout status: +9 -1
According to 10 reports in our database (9 positive and 1 negative) the Serial Printer (9-25) Epson cable pinout should be correct.

Is this pinout
NO DIY devices
Serial Printer (9-25) Epson cable visual pinout:click to enlarge
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