for Epson Thermal/Impact Receipt Printer Cable Pinouts
Computer Pin
Name
Computer Pin
Number
Direction Printer Pin
Number
Printer Pin
Name
Description
RXD 2 <-- 2 TXD  RS232
TXD 3 --> 3 RXD  
DTR 4 -?- 6 DSR  
Ground 5 <--> 7 Ground  
DSR 6 -?- 20 DTR  
RTS 7 --- 5 CTS  
CTS 8 --- 4 RTS  

 

9 pin D-SUB female connector layout
9 pin D-SUB female connector
at the Computer
25 pin D-SUB male connector layout
25 pin D-SUB male connector
at the Printer
According to 17 reports in our database (17 positive and 0 negative) this pinout should be correct.

Is this pinout
Epson Serial/RS-232 Cable DB9 to DB25 visual pinout:
Epson Serial/RS-232 Cable DB9 to DB25 diagram
click to enlarge
Source(s) of this and additional information: epson documentation from http://www.epson-pos.com
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