Db25 Male Rs 232; Terminal Block - VSCOM USB-COM PRO User Manual

6 Connector Definitions

6.2 DB25 male RS 232

This connector is only available on the VScom USB-COM 25 model. The pins not mentioned are
a no-connect.
Pin
2
3
4
5
6
Table 8: DB25 male RS232

6.3 Terminal Block

The Terminal Block connector is designed for connecting RS422 or RS485 signals. However it may
be used for RS232, because the most important signals are available here. This type of connector
is only available on some models.
Clamp 1
RS422 Tx
RS485 "4w" Tx
RS485 "2w" Data
RS232 DCD
Table 9: Terminal Block
June 2009
RS232 Pin RS232
TxD 7 GND
RxD 8 DCD
RTS 20 DTR
CTS 22 RI
DSR
2 3
Tx+ Rx+
Tx+ Rx+
Data+
RxD TxD
USB-COM PRO User Manual
Figure 27: DB25 male RS232
4 5
Rx GND
Rx GND
GND
DTR GND
31