site search by freefind advanced

 

View Basket   About Us  Products Price List How to Buy and Terms Tech Articles  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.

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.
email

 

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

holidayhomeheating

 

 

Wireless RS232/422/485 Servers

WiFi LAN RS232/422/485 Serial Servers

Controls RS232/422/485 device located virtually anywhere (via Wireless LANW(LAN), Ethernet or Internet)
Secure encryption on Ethernet and Wireless LAN (WLAN)
Wireless LAN (WLAN) Interface IEEE 802.11b/g 54Mb/s
Lan interface 10BaseT/100BaseTx Ethernet
Driver automatically finds NetCom devices in the network
Configuration over Driver Panels, serial Port, Telnet, WEB Browser, SNMP
Automatic mode switching between Driver and Raw Mode
Supports TCP/IP, UDP, Telnet, DHCP, ICMP, HTTP, SNMP V1/2c/3, DNS
Supports ART (Automatic Receive Transmit control)
RS232/422/485 interface selectable by Switches and Software
3 year warranty
 

 

NetCom 123 WLAN

1 Port RS232/422/485 via Wireless LAN, Ethernet or Internet
Secure encryption on Ethernet and WLAN
WLAN Interface IEEE 802.11b/g 54Mbps
DIN RAIL mountable

NET123

£ currency converter

NetCom 423 WLAN
4 Port RS232/422/485 via Wireless LAN, Ethernet or Internet
Secure encryption on Ethernet and WLAN
WLAN Interface IEEE 802.11b/g 54Mbps
DIN RAIL mountable

NET423

£ currency converter

NetCom 823 WLAN

8 Port RS232/422/485 via Wireless LAN, Ethernet or Internet
Secure encryption on Ethernet and WLAN
WLAN Interface IEEE 802.11b/g 54Mbps
19" Rackmount and DIN RAIL mountable
built-in power supply

NET823

£

Coming Soon 16 Port

Also see Wireless 3G Modem

 

 Hardware

Processor

ARM 9 166 MHz

 

I/O controller

16C950 or compatible

Memory

16MB SDRAM, 2 MB Flash

 

Connector type

SMA-Reverse for WLAN antenna,
RJ45 for Ethernet,
DSUB 9 male for serial Port

      

  Interface

WLAN interface

Wireless LAN IEEE 802.11b/g, max. 54 Mb/s
Encryption WPA-PSK/TKIP, WEP-128, WEP-64
Infrastructure mode (uses an Access Point)
Ad-hoc mode (direct connection to a PC/Laptop)

 

Ethernet interface

Auto-detecting 10BaseT/100BaseTx

Protocols

TCP/IP, UDP, Telnet, DHCP, ICMP, HTTP, LPD, SNMP V1/2c/3, DNS

 

Serial interface

RS232/422/485 selected by software or DIP-switch

No. of port

1, Speed up to 1.843 Mbps

 

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

 

RS485 Data control

Controlled by ART (Automatic Receive Transmit control) or RTS

  Performance

Speed

RS232: up to 921.6 kbps
RS422/485: up to 1.843Mbps

 

Parity

None, even, odd, space, mark

Data bits

5, 6, 7, 8

 

Stop bits

1, 1.5, 2

IRQ

None

 

I/O address

None

  Operating Modes

Driver mode

VScom Driver for Windows NT 4.0, 2000, XP and 2003
Driver Mode creates virtual Com port.

 

TCP Raw Server

Raw data transfer over TCP/IP. Accepts multiple incoming connections.

TCP Raw Client

Raw data transfer over TCP/IP. Connects to multiple hosts or devices waiting for incoming connections.

 

TCP Advanced Settings

Special settings for user-defined modes

UDP Mode

Raw data transfer by UDP. The NetCom is client and server at the same time. Timeout functionality, maximum packet size and a configurable trigger string define the packets of incoming data to send over UDP

 

Null Modem Tunnel

Connecting two NetCom used as virtual null modem cable.

IP Modem

The serial port emulates a standard modem. Operates by AT-commands, and dials to IP-Addresses instead of phone numbers.
Windows "INF"-Driver provided for installation.

 

Print Server

The NetCom accepts print jobs, and spools them to the attached serial printer. Operates as of RFC1197, similar to the line printer daemon in Unix-systems

Supported Operating Systems Vista, Vista 64, XP, XP 64, W2003, W2000,NY 4.0, Linux and RAW Mode
   

  Power and Environment

Power requirements

9 - 30V DC, 500mA @ 12V

8 Port 100 - 240V AC 47-63 Hz, 25VA

 

Power supply Adapter 1 & 4 Port

12V DC, 1A. Connected by Terminal block

Dimension

 73×115×27 mm³ (W×L×H)
101×121×27 mm³ with DB9 connector and ears

8 Port 258×149×45 mm³ (W×L×H)
278×155×46 mm³ with DB9 connectors and DIN-RAIL ears
19" 1HU Rackmount

 

Operating Temp

0°C - 55°C

Storage Temp

-20°C - 85°C

 

Case

SECC sheet metal (1mm)

Weight

0.2kg 1 port 0.4Kg,  4 port 1.2Kg,  8 port 1.9Kg

 

  Special Features

Installation

Configuration utility automatically finds NetCom devices in the network

 

Operating mode

Automatic mode switching between Driver and TCP RAW mode.
With TCP Advanced settings it is possible to configure the NetCom for using it in multiple modes, so it decides automatically which mode should be used.

Configuration

Configuration over Driver Panels, NetCom Manager, WEB Browser, serial console, Telnet, SNMP

 

SNMP

special VScom MIB included

ART

Automatic Receive Transmit control for RS485

 

DNS

Domain Name Server support

Serial interface

Serial Interface configurable with DIP switch and by software

 

Firewall

Special precautions for Firewall environments

Firmware

Firmware update over WEB Browser, Telnet, ComPort

 

LEDs

LEDs for Power, serial Tx, Rx, Ethernet Link, Speed, WLAN

  

  Security

Password access

Every capabilities of configuration use the same password including SNMP V3

 

Secure communication

OpenVPN™ tunnel provides security on Ethernet and Wireless networks. The tunnel protects the configuration as well as all serial data. It is also usable across the Internet.
Strong encryption by AES up to 256 bit keys.

WEP

Encryption with 64 and 128 bit for compatibility in simple installations

 

WPA

Modern Wireless protection by WPA-PSK/TKIP

Download Manual

 
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