site search by freefind advanced

 

View Basket    Products  Customer Reviews   About Us   Price Lists  How to Buy and Terms   Contact Us

 

When you buy from Roalan you will be treated well, you will get a high-quality product which will not cost you a fortune. And you will get more satisfaction out of your purchase than you expected.

Quad Honestrum.

Join our Many satisfied customers all over the world.

You don't have to buy online. Just call us on +44 (0)1202 861512 to discuss your application.
email

Available Products:

PCI Parallel

PCI-X Parallel

PCI Express

 Parallel

PCI Serial

PCI-X Serial


PCI Express Serial

USB to Industrial Serial RS232/422 Converters

Ethernet to Serial Servers

WLAN to Serial Servers

ModBus Network Gateways

ExpressCard to Seria, Firewire, LAN and Serial

ExpressCard to PCMCIA CardBus

Embedded CPU ARM Modules

GSM Phone Switch

USB to GSM 3G Modem

Multi-Modems

Bluetooth to Serial

PCIe Expansion Box

PCI Gigabit Cards

PCMCIA Card Readers

PCI Express Card Reader

PCI Firewire Cards

Serial to CAN Adapter

USB to CAN Adapter

Network to CAN adapter

PCMCIA Serial and Parallel Cards

PCMCIA Synchronous Serial Cards

GPRS Cellular Serial Modem

 

 

 

 

 

 

 

 

USB to Serial RS232 1 to 4 Port Converters

These industrial converters enable you to add serial COM ports to your PC Workstation or Embedded System, providing the ability to communicate between USB and serial peripherals.
They add Windows serial COM-ports via USB connection and are compatible with new Windows OS and legacy RS232 devices.
This plug and play USB solution is perfect for mobile instrumentation and applications requiring many RS232 devices. USB plug and play allows easy serial port expansion that requires no IRQ, DMA or I/O port resources. Users no longer need to power down the system and open the case, saving time and costs.

USB 4COM-M USB to 4 Port Industrial  Serial RS232 communication Converter 4 X 9 pin male connectors

The high speed serial port with the 128 byte FIFO allow high speed communication, even in heavy loaded systems. Unique features reduce the system load. The serial port also allows unusual speed settings like 500.000bps.

Adds 4 serial RS232 communication ports via USB connection. 
Easy serial communication port expansion with plug&play. 
Requires no IRQ, DMA, I/O port. 
Eliminates IRQ conflict and reserves system resources 
Installed as standard Windows Com port 
Compatible with new & legacy RS-232 devices 
Serial RS232 communication port speed up to 500K bps 
Full RS-232 modem control signals RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND RS-232 Connectors: four DB9 male connectors 
Serial RS232 communication port is individually configurable 
Adds more ports conveniently as needs grow 
USB Powered, no external power supply
Windows 7 32/64, 98, ME, 2000, XP, 2003 Server, Vista 32/64 Linux (Kernel 2.4 and up built-in)
3 year warranty
Operating temperature range 0 to 60oC
Dimensions  172X95X29mm (W×L×H) 184X99X29mm with DB9

USB 4COM-M

£ currency converter

USB 4COM-PRO USB to 4 Port Industrial  Serial RS232/422/485 communication Converter 4 X 9 pin male connectors

The USB-4COM-PRO is completely jumper-less and free of DIP switches, all configuration is done by software. Just press the button and use the configuration program.
Serial ports on USB allow further use of existing devices, even when the computer doesn't offer serial ports. Now the USB-4COM-PRO is extremely flexible in offered communication standards. Besides the classical RS232 and RS422 it offers six variants of the RS485 operation. The often required Termination and Polarization (BIAS) is also provided by built-in hardware, and it is controlled by the same configuration software.
The USB 2.0 interface enables the high speed serial ports (max. 3Mbps, 128 byte FIFO) for high speed communication, even in heavy loaded systems. Unique features reduce the system load. The serial ports also allow unusual speed settings like 500kbps.

Hardware Specifications

Serial interface

RS232/422/485 selected by software

 

Ports

Four

Speed

up to 500kbps RS232, up to 3Mbps RS422/RS485

 

Available Modes

RS232 full duplex
RS422 full duplex
RS485 4 wire, full duplex
RS485 2 wire, half duplex, with echo
RS485 2 wire, half duplex, without echo

Signals

RS232 TxD, RxD, RTS/CTS, DTR, DSR, DCD, RI, GND
RS422 Tx+/-, Rx+/-, GND
RS485 2 wire Data+/-, GND
RS485 4 wire Tx+/-, Rx+/-, GND

 

USB Interface

USB2.0

Power

External power supply 5V DC

 

Driver

Windows 7 32/64, 98, ME, 2000, XP, 2003 Server, Vista
Linux (Kernel 2.4 and up built-in)

Connectors

four DB9 male

 

Dimensions

172×95×29 mm³ (W×L×H)
184×99×29 mm³ with DB9 connector and ears

 

 

Product Name

VScom USB-4COM-PRO

Packing list

VScom USB-4COM-PRO Converter
USB cable 0,9m
Power converter
CD, English Documentation

    

Accessories

DK-35A

DIN-Rail mounting kit

USB 4COM-PRO

£ currency converter

DK-35A 
£ currency converter
 


Customer Reviews

 

USB-S    USB to Serial RS232 Communication Converter/Adapter 9 pin male connectors

USB to Serial providing one RS232 serial port. Up to 500,000 data transfer rates and the 128 byte deep  FIFOS, gives  uncompromising performance on your laptop/PC. Drivers for Windows 32 bit and 64 bit Operating Systems including Windows XP, Server 2003, Vista, Server 2008 and Windows 7.

Adds a serial RS232 ports via USB connection. 
Suitable for Chip and Pin Terminals.
Easy serial communication port expansion with plug&play. 
Requires no IRQ, DMA, I/O port. 
Eliminates IRQ conflict and reserves system resources 
Installed as standard Windows Com port 
Compatible with new & legacy RS-232 devices 
Serial communication port speed up to 500K bps 
Full RS-232 modem control signals RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND RS-232
Serial RS232 communication port is individually configurable 
Adds more ports conveniently as needs grow 
Bus-powered. 
Windows 7 32/64, 98, ME, 2000, XP, 2000 to 2008 Server, Vista 32/64 Linux (Kernel 2.4 and up built-in)
No external power supply needed
EMC and FCC and EC Class A
RoHS
Operating temperature range 0 to 60oC
3 year warranty

USB-S

£ currency converter

USB-DS  USB to 2  Serial RS232 Communication Converter/Adapter 2 X 9 pin male connectors

The serial port also allows unusual speed settings like 500.000bps.

Adds 2 serial RS232 ports via USB connection. 
Suitable for Chip and Pin Terminals.
Easy serial communication port expansion with plug&play. 
Requires no IRQ, DMA, I/O port. 
Eliminates IRQ conflict and reserves system resources 
Installed as standard Windows Com port 
Compatible with new & legacy RS-232 devices 
Serial communication port speed up to 500K bps 
Full RS-232 modem control signals RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND RS-232
Serial RS232 communication port is individually configurable 
Adds more ports conveniently as needs grow 
Bus-powered. 
Windows 7 32/64, 98, ME, 2000, XP, 2003 Server, Vista 32/64 Linux (Kernel 2.4 and up built-in)
No external power supply needed
Operating temperature range 0 to 60oC
3 year warranty

USB-DS

£ currency converter

Roalan delivers products worldwide.
VAT will be added to all UK and EU (without a VAT number) deliveries

home

                    Tel +44 (0) 1202 861512

                    Fax +44 (0) 1202 891454

                    Gleneagles House, 31 Riverside Road, West Moors, BH22 0LG, England, UK

                    Registered in England  4591605   VAT GB 474 4377 22     Member 1408917