Serial (RS232) printer cable (DB25-DB25). Pinout and signals for building a serial (RS232) printer cable

Use this cable between two a computer (DTE) and a printer (DTE) devices.

D25 pin D-SUB female to the PC DB25 pin D-SUB female to the PC
DB25 pin D-SUB female DB25 pin D-SUB female to the printer

DB25-1 DB25-2
Receive Data 2 3 Transmit Data
Transmit Data 3 2 Receive Data
Clear To Send + Data Set Ready 5 + 6 20 Data Terminal Ready
Carrier Detect + Data Terminal Ready 8 + 20  
Ground 7 7 Ground