Usb-To-Serial Port Converter Modules - Seco SBC Series User Manual

5.2.2

USB-to-Serial port converter modules

Modules with DB-9 connector
Signal RS-232 Signal RS-422
Pin
converter converter
1 DCD# N.C.
2 RX RX-
3 TX TX-
4 DTR# N.C.
5 GND GND
6 DSR# N.C.
7 RTS# TX+
8 CTS# RX+
9 RI# N.C
Ordering Code Description
VA13-0000-1100-C0 USB to RS232 serial port converter with DB9 connector
VA13-0000-1200-C0 USB to RS422 serial port converter with DB9 connector
VA13-0000-1300-C0 USB to RS485 serial port converter with DB9 connector
VA13-0000-2100-C0 USB to RS232 serial port converter with RJ-45 connector
VA13-0000-2200-C0 USB to RS422 serial port converter with RJ-45 connector
VA13-0000-2300-C0 USB to RS485 serial port converter with RJ-45 connector
SBC-A80-eNUC
SBC-A80-eNUC User Manual - Rev. First Edition: 1.0 - Last Edition: 1.2 - Author: S.B. - Reviewed by G.G Copyright © 2017 SECO S.r.l.
This optional module has been designed to convert one of the internal USB ports available on connector CN11 into a serial
port, which can be of RS-232, RS-422 or RS-485 type (fixed configuration).
Depending on the type of serial port needed, different module configurations are available; moreover, the output of the
module can be available on standard DB-9 male connector or on RJ-45 sockets.
All modules type mounts an FTDI FT232R USB-to-Serial UART interface IC; RS-232 converter module then mounts a Serial
Port RS-232 Transceiver with 15kV ESD protection. Instead, the other converters mount and RS-485/RS-422 transceiver.
Signal RS-485 Signal RS-232
Pin
converter
N.C. 1 DTR#
N.C. 2 CTS#
RX- / TX- 3 N.C.
N.C. 4 RX
GND 5 N.C.
N.C. 6 TX
RX+ / TX+ 7 GND
N.C. 8 RTS#
N.C.
Modules with RJ-45 socket
Signal RS-422
converter converter
N.C. N.C.
RX+ N.C.
N.C. N.C.
RX- N.C.
N.C. N.C.
TX- RX- / TX-
GND GND
TX+ RX+ / TX+
In the table on the left are shown
the pinout of DB-9 connector and
Signal RS-485
of RJ-45 socket for all kind of
converter
modules.
120Ω termination
differential pairs are available both
on RS-422
modules.
resistors on
and on RS-485
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