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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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GSM Cell Phone Mobile Wireless Control Terminal

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.  Taking advantage of the reliable, widespread GSM networks and the supported GPRS service, TWCT  becomes a remotely accessible unit from any part of the world. Using an embedded feature rich web server interface, you can configure various parameters of TWCT . The inputs present on TWCT can be used for monitoring of external devices or connecting sensors (analog/digital). Alarm conditions can be configured for monitoring of these inputs. Since TWCT supports sms/text and SMTP protocols, the device can be configured to send SMS/Email whenever alarm conditions occur. TWCT also gives you the freedom to control the states of the connected outputs. By sending a simple sms/text you can change/get the status of the outputs.

Given the set of hardware features, software ability and GSM connectivity TWCT is an ideal product for use in wide variety of application areas. With minimal to no effort, TWCT can be easily integrated in an operational system with ease. Some of the application areas could be (the list is however not limited to these application areas)                

Security systems
Irrigation & fire alarm systems
Building surveillance and control
Home & garden automation projects 
Heating, lighting & climate control 
Remote monitoring and device/equipment control

Wide coverage of GSM networks and the provision of GPRS connectivity have made it possible to interconnect systems wirelessly. TWCT exploits the benefits of this wireless technology and gives you control of your remote units from any part of this World. All-in-all TWCT is an advanced, effective and an economical solution for fulfilling your needs of remote monitoring and control applications.

Features:

Quad band: 850/900/1800/1900 MHz, gives worldwide operation. 
7A relay outputs, to drive heavy loads
Surge and reverse voltage protection on all the inputs.
Two Analog inputs with mode selection, voltage mode (0-10V) or current mode (4-20mA)
Turn ON/OFF the outputs by sending sms/text
Alarm message service over sms/text or email
Simple configuration through any web browser
DIN rail mounting, for easy integration in industrial environment
4 LED‘s for input status, 4 LED‘s for output status
Dual colour device status LED
24V power supply, ideal for use in heavy duty vehicles like buses, trucks
Watchdog controller ensures reliable and continuous operation
RS232 hardware interface.
Firmware upgrade possibility

TECHNICAL SPECIFICATIONS

Physical:

Operating temperature range from -20°C to +55°C
DIN Rail Mounting
Dimensions 90x70,5x57,6 (mm)
Interface RS232 (RJ45 connector)
GSM antenna MMCX connector

GSM:

GPRS Class 10: 16-24 Kbps upload, 32-48 Kbps download
SMS: Text mode
Wireless modem: Quad Band GSM (850/900/1800/1900MHz)

Electrical:

Power 24V ±10%  
4 digital inputs (“0” (false) 0 – 2V, “1” (true) 2-24V, terminal blocks)
2 analog inputs. (0 – 10V, 4-20mA, terminal blocks)
4 relay outputs (~250V, 7A, terminal blocks)

Miscellaneous:

RS232 interface, Socket : RJ-45
Alarm message service SMS, EMAIL
Protocol HTTP, SMTP
Configurable with internal WEB server interface
Additional watchdog controller

TWCT 

£ currency converter
 

High Gain External Antennas (optional)

The SO-918-2-M1 is a cost-effective wall mount omni antenna supporting 900/1800/2100 MHz (GSM/3G) frequency bands. The antenna is housed in a fibreglass tube and comes with a wall mount bracket. As standard, the SO-918-2-M1 is supplied with 5M RG58 cable and SMA-Male connector.
Gain 2DBi
Cable length 5 meters
£

 

The SLP is a multi-band base station high gain directional antenna covering 1800/1900 MHz and 2.1/2.4 GHz addressing DCS, PCS, UMTS and WLAN frequency bands.
Frequency: 1800/1900/2100/2400 MHz 
Gain: 11.5 dBi 
VSWR: 2:1 Typical 
Impedance: 50 Ohm 
Cable: None
Connector: SMA-Female
Mount: Mast Mount (wall mount option)
email or call for the price with the length of cable required.
 

In the UK you can find your nearest base station at http://www.sitefinder.ofcom.org.uk/frame_map.htm

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

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