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. Pinout and signals for the serial printer connector

DB25 pin D-SUB male at the printer
 DB25 pin D-SUB male (at the printer)

Pin Name Direction Description
1
 SHIELD
Shield Ground
2
 TXD
—»
 Transmit Data
3
 RXD
«—
 Receive Data
4
 n/c
-
 Not connected
5
 n/c
-
 Not connected
6
 DSR
«—
 Data Set Ready
7
 GND
System Ground
8
 DCD
«—
 Data Carrier Detect
9
 n/c
-
 Not connected
10
 n/c
-
 Not connected
11
 ?
—»
 Reverse Channel
12
 n/c
-
 Not connected
13
 n/c
-
 Not connected
14
 n/c
-
 Not connected
15
 n/c
-
 Not connected
16
 n/c
-
 Not connected
17
 TTY-TXD
—»
 TTY Receive Data
18
 n/c
-
 Not connected
19
 n/c
-
 Not connected
20
 DTR
—»
 Data Terminal Ready
21
 n/c
-
 Not connected
22
 n/c
-
 Not connected
23
 ?
—»
 TTY Receive Data Return
24
 ?
«—
 TTY Transmit Data Return
25
 TTY-RXD
«—
 TTY Receive Data