RS232 Port Logger Software Our RS232 software allows to capture, log, analyze rs232 data from RS232 ports.
RS232 Port Monitor Software Our RS232 port monitor software allows to capture, analyze and debug rs232 data from RS232 ports. This software can work with ASCII, HEX or binary data

Serial (RS232) printer cable (DB9-DB25). Pinout and signals for building a serial (RS232) printer cable

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

D9 pin D-SUB female to the PC
DB9 pin D-SUB female to the PC
DB25 pin D-SUB female
DB25 pin D-SUB female to the printer

DB9 DB25
Receive Data
3
3
Transmit Data
Transmit Data
2
2
Receive Data
Clear To Send + Data Set Ready
8 + 6
20
Data Terminal Ready
Carrier Detect + Data Terminal Ready
1 + 4
 
Ground
5
7
Ground