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Roalan Ltd is the source for professional
computer adapter products.
Serial
Comms Cards
PCI-X
3.3V (3.3 Volt)
64 bit and PCI serial 1 to 8 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
Multi-Modem
Cards
PCI/PCI-X
3.3V (3.3 Volt)
64 bit Multi- Modem Adapter cards/boards
RS422
RS485 Cards
PCI/PCI-X 3.3V (3.3 Volt) 64
Bit RS422 RS485 Serial Comms cards/boards
PCI to USB
Cards
PCI to USB V2.0 Adapter cards
USB to
Serial converters
USB to Serial RS232 RS422/485 1
to 16 Port Adapters
USB to
Infra Red
USB to Infra Red (IR) Converter
USB
to PCMCIA
USB Adapter for Cardbus Wireless Modem 3G Cards
USB 3G Modem
USB to 3G Wireless Modem
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 Serial
PCMCIA ExpressCard to Serial RS232
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
Ethernet to Serial RS232 RS422
RS485 1 to 8 Port Adapters
Serial to
Bluetooth
Bluetooth to Serial RS232 Cable
Eliminator
Wireless Network-based
Serial Device Server
Wireless 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
Synchronous
Products
PCMCIA RS232/422/485
PCI
Modem
3GWireless
Cellular Router
Compact
Flash Compact
Flash To Serial Comms RS232/422/485
CardBus
to ExpressCard PCMCIA
CardBus to ExpressCard Adapter PCI
Express SATA PCIe
SATA RAID Controller
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PCI PCI Express and PCI-X RS422/485
Adapter Cards
Single Serial PCI-X 3.3V RS422/485
Single Serial PCI 5V RS422/485
Dual Serial PCI 5V RS422/485
Dual Serial PCI/PCI-X 3.3V/5V RS422/485
Dual Serial PCI Express RS422/485
Quad Serial PCI 5V RS422/485
Quad Serial PCIe RS422/485
Need a PCMCIA RS422/485?
SS400 PCI-X 64 bit 3.3Volt (3.3V) Serial Communication
Adapter Card/Board RS422/485 Galvanically isolated
 | Compatible with 3.3 volt (3.3V) PCI-X 64 bit expansion slots -
Dell, Compaq, IBM, Intel chassis |
| State-of-the-art advanced design permits high baud rates
with ESD protection and Isolation |
| 32 / 64 Bit PCI / PCI-X 64 bit bus slots (3.3 volts (3.3V) only) |
| Low Profile/Half Height and Standard Height Mounting brackets included |
| 2500 volt Isolation with onboard DC-DC isolated converter |
| 15kv ESD Static Protection (25 kv optional) |
| 128 Byte Transmit / Receive Buffers |
| Hardware Auto-Flow Control |
| Full / Half Duplex serial communication
support |
| Maximum serial communication
Baud Rate 15 Megabaud (requires clock change) |
| Supports up to 921k baud serial communication
without clock change |
| Thermal and Current protected transceivers |
| Multiple serial communication
adapter board/cards may be installed for additional serial
ports |
| Device Driver support for: Vista, Win 95/98, Win ME, Win XP/XP Pro,
Win NT/NT Server, Win 2000/2003 32/64 bit Server, Linux (Contact us for details)
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| 5 year warranty |
SS400 
£79.00 (About US$160)
SS500 PCI 5Volt (5V) Serial Communication
Adapter Card/Board RS422/485 Galvanically isolated
| Single High Speed RS422/RS485 PCI compatible Serial Port |
| Low Profile MD1 Size (121.79 mm) |
| Bracket Height 79.2 mm (3.118") |
| Standard & Low Height Brackets included |
| Use in 32 bit 5 volt PCI expansion slots |
| 16C950 UART |
| 128 Byte Transmit / Receive Buffers |
| Slew Rate controlled 10 Mbaud RS422/RS485 Transceiver |
| Maximum Baud Rate 10 Megabaud (requires clock change) |
| Support up to 921k baud without clock change |
| Plug & Play Compatible |
| RS422/RS485 Electrical Interface |
| Full / Half Duplex Support |
| Onboard Power status LED indicators |
| 25 kv ESD + 25 Kv HBM Surge Protection |
| Thermal and Current protected transceivers |
| +5 Volt Only PCI Design |
| 2500 volt Isolation with onboard DC-DC isolated convertor |
| PCI Bus 2.2 Compatible |
| Power Management 1.0 Compliant |
| Compatible with AMD Athlon / Pentium CPU Motherboards |
| Low Noise 4 Layer PCB |
| Device Driver support for: Vista, Win 95/98, Win ME, Win XP/XP Pro,Win
NT/ T Server, Win 2000/2003 32/64 bit Server, Linux |
| 5 year warranty |
SS500
£79.00 (About US$160)
DS460 PCI 5V Dual RS422/485 Serial Communication Adapter
Board/Card
DS460
£79.00 (About US$160)
DS450 PCI-X 64 bit 3.3Volt (3.3V) /5V Dual RS422/485 Serial Communication Adapter
Board/Card
| Universal
PCI Connector, 3.3Volt (3.3V) and 5V |
| MD1
Low Profile/Half Height PCI Board/Card - fits 2U racks without riser cards (Standard height
bracket supplied) |
| Two
independent serial RS422/485 communication interfaces |
| Auto
enable/disable RS-422/485 transmitter |
| Full
Duplex and Half Duplex modes available |
| Speeds
to 460.8 kbps |
| 16550
UARTs with 16-byte FIFOs |
| All
ports share a single PCI interrupt |
| Standard
D9 connectors via included cable |
| Windows
95/98/Me/NT/2000/XP/Vista and Linux supported |
| Five
year warranty |
DS450
£109.00 (About US$221)
QS422 PCI 5V Quad Serial Communications Adapter Board/Card RS422/485 Isolated High Speed
Supports
communication speeds up to 10 Mbps
| Fast speed: Default support upto 460K Galvanic Isolated
RS422/485 interface |
| Maximum serial communication
Baud Rate 10 Megabaud (requires clock change) |
| New State-of-the-art design offers advanced features +
Isolation |
| Low Profile Size |
| Low Profile Bracket Height 79.2 mm (3.118") |
| Standard Height bracket available for standard height PCI
expansion slot |
| Quadplex Cable Included (HD44M to 4 of DB9M) |
| 16C950 UART |
| 128 Byte Transmit / Receive Buffers |
| ISOLATED TX+ and TX- lines |
| ISOLATED RX+ and RX- lines |
| ISOLATED Ground |
| RS422 / RS485 selectable operation modes |
| RS422 Mode |
| TX and RX ACTIVE |
| RS485 Full / Half Duplex support |
| 25kv ESD Surge Protection (IEC-61000-4-5) |
| RS485 Auto-gating of the transmitter via hardware |
| Plug & Play Compatible |
| Onboard 3KV Isolated DC-DC Converter |
| Support for TX and RX line reversals |
| Slew Rate controlled transceivers for Error-free
communications (115k / 500k / 10Mbs |
| Short-Circuit / Thermal and current protected
transceivers |
| Device Driver support for: Vista, Win 95/98, Win
ME, Win XP/XP Pro, Win NT/NT Server, Win 2000/2003 32/64 bit Server |
| Plug & Play in Linux (Call for RS485 info) |
| 5 year warranty |
QS422
£175.50 (About US$357)
DS842 P CI Express 2S Multiport adapter to support 1x,
4x, 8x, 16x Lane bus slots with RS422/RS485 interface
2 (Dual) Serial Port RS422 / RS485 I/O Port Card
for your 1x, 4x, 8x, 16x lane PCI Express expansion slot
Compatible with all PCI Express motherboards
Introducing the industry's most advanced add-on
2 serial (16950) adapter for PCI Express. This cutting edge design permits a
quick installation of 2 of RS422/RS485 serial to any brand of computer system.
This single slot, standard height adapter is provided with support for Microsoft
Windows 9x, ME, 2000, XP, XP64, NT4, 2003-32 bit, 2003-64 bit and Linux (32/64
bit). Furthermore, Linux users will welcome the ease of installation of this
advanced card by not having to recompile kernels, without embedding add-on
device drivers, without inserting add-on modules for RS422 interface. The DS842
card is Plug & Play supported by all current Linux kernels.
| Dual (2) High Speed 16C950 Serial Port for PCIe / PCI
Express expansion slots |
| Bus design compatible with 1x, 4x, 8x, 16x lane expansion
slots |
| Onboard 2 of DB9 Male connectors |
| Standard height mounting |
| Slew rate controlled transceivers |
| CTS+, CTS-, RTS+, RTS- |
| 16C950 UART ( 8x buffer than 16550) |
| 128 Byte Transmit / Receive Buffers |
| RTS / CTS Hardware Auto-Flow Control |
| 10 Megabaud RS422/485 Transceivers |
| Plug & Play Compatible |
| Software Selectable NON-VOLATILE Clock
Divisors |
| RS422/485 Electrical Interface |
| 25 kv ESD Surge Serial Port Protection |
| Short-Circuit / Thermal and current protected RS422 / RS485
transceivers |
| Transceivers contain onboard charge pump |
| Device Driver support for: Vista 32/64, Win 95/98, Win
ME, Win XP/XP Pro, Win NT/NT Server, Win 2000/2003 & 2003 32/ 64 bit
Server, Embedded XP, Plug & Play in Linux (Tested in RH 7.x, 8.x, 9.x,
FC1-FC3, ES and more) |
DS842
£134.10 (About US$272)
QS842 P CI Express 4S Multiport adapter to support 1x,
4x, 8x, 16x Lane bus slots with RS422/RS485 interface
4 (Quad) Serial Port RS422 / RS485 I/O Port Card
for your 1x, 4x, 8x, 16x lane PCI Express expansion slot
Compatible with all PCI Express motherboards
Introducing the industry's most advanced add-on
4 serial (16950) adapter for PCI Express. This cutting edge design permits a
quick installation of 2 of RS422/RS485 serial to any brand of computer system.
This single slot, standard height adapter is provided with support for Microsoft
Windows 9x, ME, 2000, XP, XP64, NT4, 2003-32 bit, 2003-64 bit and Linux (32/64
bit). Furthermore, Linux users will welcome the ease of installation of this
advanced card by not having to recompile kernels, without embedding add-on
device drivers, without inserting add-on modules for RS422 interface. The DS842
card is Plug & Play supported by all current Linux kernels.
| Quad (4) High Speed 16C950 Serial Port for PCIe / PCI
Express expansion slots |
| Bus design compatible with 1x, 4x, 8x, 16x lane expansion
slots |
| Quadplex Cable Included (HD44M to 4 of DB9M) |
| Standard height mounting |
| Slew rate controlled transceivers |
| CTS+, CTS-, RTS+, RTS- |
| 16C950 UART ( 8x buffer than 16550) |
| 128 Byte Transmit / Receive Buffers |
| RTS / CTS Hardware Auto-Flow Control |
| 10 Megabaud RS422/485 Transceivers |
| Plug & Play Compatible |
| Software Selectable NON-VOLATILE Clock
Divisors |
| RS422/485 Electrical Interface |
| 25 kv ESD Surge Serial Port Protection |
| Short-Circuit / Thermal and current protected RS422 / RS485
transceivers |
| Transceivers contain onboard charge pump |
| Device Driver support for: Vista 32/64, Win 95/98, Win
ME, Win XP/XP Pro, Win NT/NT Server, Win 2000/2003 & 2003 32/ 64 bit
Server, Embedded XP, Plug & Play in Linux (Tested in RH 7.x, 8.x, 9.x,
FC1-FC3, ES and more) |
QS842
£195.00 (About US$396)
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