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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 Comms Cards 
PCI-X 3.3V (3.3 Volt) 64 bit, PCI Express (PCIe) and 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
PCI-X 3.3V (3.3 Volt) 64 bit and PCIe Express 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), PCI, PCI-X 3.3V (3.3 Volt) 64 Bit 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 4 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 Adapters

Serial to Bluetooth
The BT232 supports Bluetooth Wireless Cordless communication between controllers/devices that have a RS232 serial port interface. The BT232 Bluetooth Wireless Cordless to RS232 Serial Port Converter Adapter communicates up to 100 metres/300 feet with up to 115.2Kps speed. 

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

PCI Modem
HSDPA PCI wireless 3G cellular modem card is a perfect solution of wireless internet connectivity for your remote PC based applications such as POS and information terminals or in internet kiosks

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 to 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

GSM Edge 3 G Mobile Cell Phone Camera
The  MVC100 EDGE (3G) Mobile Wireless Cell Phone Camera is a compact Mobile Wireless surveillance CCTV and monitoring system for transmission of high resolution video and single images via GPRS/EDGE network. In places with no land line Internet available

VSCom Comparison

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USB to Serial RS422/485 Converters

These adapters enable you to add serial COM RS422/485 ports to your PC Workstation or Embedded System, providing the ability to communicate between USB (Universal Serial Bus) and serial peripherals.
They add Windows serial COM-ports via USB connection and are compatible with new Windows OS and legacy RS422/485 devices.
This plug and play USB solution is perfect for mobile instrumentation and applications requiring many RS422/485 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-S422 
USB to Serial RS422/485 Communication Converter 1X 9 pin male connector

One RS422/485 port male DB9 connector
Speed up to 921.6K bps
Signals: RS422: TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND RS485: Data+/-, GND
USB bus powered, no external power supply
Windows 7, 98, ME, 2000, XP, 2003 Server, Vista
Linux (Kernel 2.4 and up built-in)

USB-S422

£ currency converter

 

 

USB COM-I-SI-M  
USB to  RS422/RS485 DB9 and terminal block serial adapter to USB isolated, metal case, DIN-Rail

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.

One RS422/485 port, optical isolated
Up to 921.6kbps
RS422 TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND
RS485 Data+/-, GND
Parity None, Even, Odd
Data Bits 7,8
Flow RTS/CTS
Speed 180bps to 921Kbps
Support USB 2.0 and USB 1.1 Full Speed 12MHz
UART has 128 byte FIFO
No IRQ and I/O resource required
Non standard baud rates available
15KV surge protection
2KV optical isolation
USB bus powered, no external power supply
Windows 7, 98, ME, 2000, XP, 2003 Server, Vista
Linux (Kernel 2.4 and up built-in), Mac OSx
One DB9 male and terminal block
57×72×22 mm (W×L×H)
82×77×22 mm with DB9 connector and ears
Operating temperature 0 to 60oC
Approvals: FCC Class A, CE Class A

USB COM-I-SI-M

£ currency converter

DK-35A DIN Rail Mounting Kit

£ currency converter

USB 2COM-I-SI-M  
USB to  2 Port RS422/RS485 DB9 and terminal block serial adapter to USB isolated, metal case, DIN-Rail

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.

Two  RS422/485 port, optical isolated
Up to 921.6kbps
RS422 TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND RS485 Data+/-, GND
Parity None, Even, Odd
Data Bits 7,8
Flow RTS/CTS
Speed 180bps to 921Kbps
Support USB 2.0 and USB 1.1 Full Speed 12MHz
UART has 128 byte FIFO
No IRQ and I/O resource required
Non standard baud rates available
15KV surge protection
2KV optical isolation
USB bus powered, no external power supply
Windows 7, 98, ME, 2000, XP, 2003 Server, Vista
Linux (Kernel 2.4 and up built-in), Mac OSx
Two  DB9 male and terminal block
57×72×22 mm (W×L×H)
82×77×22 mm with DB9 connector and ears
Operating temperature 0 to 60oC
Approvals: FCC Class A, CE Class A

USB 2COM-I-SI-M 

£ currency converter

DK-35A DIN Rail Mounting Kit

£ currency converter

 

USB 2COMI USB to Dual Serial RS422/485Communication Converter 2 X 9 pin male Connectors

two  RS422/485 portsed
Up to 921.6kbps
RS422 TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND RS485 Data+/-, GND
Parity None, Even, Odd
Data Bits 7,8
Flow RTS/CTS
Speed 180bps to 921Kbps
Support USB 2.0 and USB 1.1 Full Speed 12MHz
UART has 128 byte FIFO
No IRQ and I/O resource required
Non standard baud rates available
Windows 7, 98, ME, 2000, XP, 2003 Server, Vista
Linux (Kernel 2.4 and up built-in), Mac OSx
External power supply 5V DC required. Adapter included
Operating temperature 0 to 60oC
Approvals: FCC Class A, CE Class A

USB 2COMI

£ currency converter

USB 4COM-I-SI-M  
USB to  4 Port RS422/RS485 DB9 and terminal block serial adapter to USB isolated, metal case, DIN-Rail

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.

Four RS422/485 port, optical isolated
Up to 921.6kbps
RS422 TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND
RS485 Data+/-, GND
Parity None, Even, Odd
Data Bits 7,8
Flow RTS/CTS
Speed 180bps to 921Kbps
Support USB 2.0 and USB 1.1 Full Speed 12MHz
UART has 128 byte FIFO
No IRQ and I/O resource required
Non standard baud rates available
15KV surge protection
2KV optical isolation
Built in Power supply
Windows 7, 98, ME, 2000, XP, 2003 Server, Vista
Linux (Kernel 2.4 and up built-in), Mac OSx
One DB9 male and terminal block
257×147×44 mm (W×L×H)
277×147×44 mm with DB9 connector and ears
Operating temperature 0 to 60oC
Approvals: FCC Class A, CE Clas

USB 4COM-I-SI-M 

£ currency converter

USB 4COM-I-M
as above less opt-isolation and surge protection

£

USB 8COMI-RM   
USB to Quad  Serial RS422/485Communication Converter 8 X 9 pin male Connectors

Eight RS422/485 port male DB9 connectors
Speed up to 921.6K bps
Signals: RS422: TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND RS485: Data+/-, GND
Built in power supply
Windows 7, 98, ME, 2000, XP, 2003 Server, Vista
Linux (Kernel 2.4 and up built-in)
0 to 60oC
3 year warranty

USB 8COM-I-RM

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

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