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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.

Join our Many satisfied customers all over the world.

If your purchase is not right for the application, just send it back for full refund.

You don't have to buy online. Just call us on +44 (0)1202 861512 to discuss your application.
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Embedded ARM9 CPU Modules
ARM processors boast energy-saving operation while offering very good processing power. Arm 9 processors are ideal for mobile battery powered applications

Serial RS232 Comms Cards 
  PCI Express (PCIe) and u PCI serial 1 to 16 port serial communication adapter cards/boards including  low profile half height

Intelligent Serial Cards
4 to 128  Port  Intelligent Serial RS232 RS422 RS485 

Parallel Printer Cards
Universal PCI and PCIe parallel printer adapter cards/boards including low profile half height

Serial plus Parallel Combo
PCI Express (PCIe) and  PCI-X 133MHz 64bit Dual Serial RS232 and Parallel Adapter                     

Gigabit Ethernet Cards
PCI-X 3.3V (3.3 Volt) 64 bit Network Gigabit Ethernet cards/boards. PCI-Express Gigabit adapter. Copper and fibre

Multi-Modem Cards
PCI/PCI-X 3.3V (3.3 Volt) 64 bit Multi- Modem Adapter cards/boards

RS422 RS485 Cards
PCI Express (PCIe) and universal PCI RS422 RS485 Serial Comms cards/boards

PCI to USB Cards 
PCI, PCI-X PCI Express (PCIe) to USB V2.0 Adapter cards

USB to Serial converters
USB to Serial RS232 RS422/485 1 to 32 Ports Adapters

USB to Serial converters
USB to Serial RS232 RS422/485 8 and 16 Ports Adapters

USB to PCMCIA
USB Adapter for Cardbus Wireless Modem 3G Cards

USB 3G Modem
USB to 3G Wireless Modem for mobile cell phones

ExpressCard to Serial
ExpressCard to Serial RS232 Card

PC Card  to Serial 
PCMCIA Cardbus to Serial RS232  Adapter Cards

PC Card  to Parallel 
PCMCIA Cardbus to Parallel Printer and Dongle Cards

PC Card to Serial RS422/485
PCMCIA Cardbus to Serial RS422 RS485 Adapter Cards

ExpressCard To PCMCIA Adapter
Converts ExpressCard slot to PCMCIA CardBus PC Card

PCI/PCI-X Firewire Cards
PCI PCI-X 64 bit 3.3V (3.3 Volt) to Firewire (IEEE1394) low profile half height  adapter cards/boards,

Ethernet to Serial Servers
Ethernet to Serial RS232 RS422 RS485 1 to 16 Port Converters

Serial to Bluetooth
The Bluetooth Wireless to RS232 Serial Port Converter Adapter 

Wireless Network-based Serial Device Server
Wireless WiFi LAN IEE802.1b to RS232 RS422 RS485 Serial Adapters

GSM to Serial
Mobile Cell Phone to Serial RS232

Quatech Products
Order Quatech products on-line

VSCom Products
Order VScom products on-line

3GWireless Cellular Router
The EA511 wireless router gives you everything you need to set a small to medium network with internet access. Connection to the internet is via an ADSL line or 3G broadband cellular Wireless connection (PCMCIA card and SIM required from your chosen service provider)

CAN-BUS to Ethernet
The VScom NET-CAN 110 provides CAN-BUS communication over Ethernet. It provides completely secured communication for both data transfer and configuration to the attached CAN devices

CAN-BUS to USB
The VScom USB-CAN is an adapter from USB to CAN. It connects a PC via the USB interface to the CAN bus. Since current computers all have several USB ports, the installation is simple

CAN-BUS to Serial
The VScom SER-CAN is an adapter from serial port to CAN. It connects a PC via any serial port to the CAN bus. Many computers still have a serial port, the installation is simple

GSM Cell Phone Mobile Remote Switch
Your mobile cell phone becomes your remote control. You will be able to open barriers and doors, switch on heating and cooling  with your mobile cell phone. Just dial from authorized user number and the barrier and doors are opened, heating switch on, computer powered up, or any electrical device switched on or off

GSM Cell Phone Mobile Controller
The TWCT allows you toPlease pay all invoices over 30 days old.

Best regards

Roger Swabe monitor and control your remote units/equipments. It's a product which not only enables remote monitoring and control but also sends you SMS/Email in case of alarm conditions

VSCom Comparison

NetUSB-400i Ethernet to 4 Port USB Controller

The NetUSB-400i controls four USB 2.0 devices via Ethernet. The four USB ports on NetUSB-400i are seen as installed in the Windows PC. Any devices connected to the ports are detected via Plug & Play. Several PC may use the same devices on a time-sharing base.

USB printers offer an automatic sharing option, to connect them when data is printed. Other PC use the same printer as soon as the previous job has finished printing.

The metal case and the flexible power supply make the NetUSB-400i a good choice in rough office and industrial environments.

The most obvious use of NetUSB is sharing low cost printers via the network. There is even a special configuration for such an installation in the NetUSB. The port with an attached printer is shared by several computers. When one PC is actually printing, the ports in the other PC are put on hold. Application software on these does not recognize that state, it simply sends the data to the printer port. As soon as the first PC finishes the print job, the port becomes available to other computers. The next one gets access, and simply sends the data to the printer. All this integrates seamlessly to the printing system, without noticed by the user. Of course it is also usable the other way, one computer controls up to four printers, remote from the user.

Other types of devices are shared in turns. All computers may use the attached devices, like memory sticks, keyboard, scanner, external hard drives and so on. Even USB adapters for serial ports or Wireless LAN have been installed this way, though there are specialized devices better suited for the typical requirements of such operation.

NetUSB-400i

Optional DK-35A DIN-Rail Mounting Kit

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

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