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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.
Quad Honestrum.
Join our Many satisfied customers
all over the world.
You don't have to buy online.
Just call us on +44 (0)1202 861512 to discuss your application.
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Available Products:
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and Parallel Cards
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PCI PCI Express and PCI-X RS422/485
Adapter Cards for Windows 7
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Single Serial Universal
PCI RS422/485 |
2 Port Serial
uPCI RS422/485 |
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| 2 Port Serial PCI Express RS422/485 |
4 Port Serial PCI 5V RS422/485 |
4 Port Serial PCIe RS422 |
Customer
Reviews
SS500 Universal PCI/PCI-X Serial Adapter
RS422/485 Opto Isolated
 | Single High Speed RS422/RS485 PCI/PCI-X 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 |
 | PCI Bus 2.3 Compatible |
 | Power Management 1.0 Compliant |
 | Compatible with AMD Athlon / Pentium CPU Motherboards |
 | Low Noise 4 Layer PCB |
 | Device Driver support for: 7 32/64, Vista 32/64, Win 95/98, Win ME, Win XP/XP Pro,Win
NT/ T Server, Win 2000/2003/8 32/64 bit Server, Linux |
 | 5 year warranty |
SS500
Special Baud Rate up to 10Mbps state what you require in the
comments


DS460 Universal PCI/PCI-X 2 Port RS422/485 Serial Communication Adapter
Board/Card
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Compatible for use in all PCI bus expansion slots (3.3 or 5
volt PCI or PCI-X – NOT for use in PCI Express) |
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Dual 16C550 / 16C650 / 16C750 /
16C950 UART compatible UART |
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Plug & Play
support for Windows and Linux platforms |
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Full / Half Duplex,
RS422 / RS485, With or Without Local Echo operating modes |
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Enhanced drivers for Linux / Windows to support enhanced
features including deeper FIFOs, nonstandard baud
rates |
 | 128 byte deep Transmit and Receive FIFOs |
 | Flexible clock prescalar from 1 to 31.875 |
 | RS485 Full / Half Duplex support |
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15 Mbaud rated RS422 / RS485 transceivers with 25kv ESD and
thermal / short-circuit shutdown protection
(Maxim P/N # MAX3079EESD+) |
 | Maximum baud rate 460k using software
selectable clock multipliers |
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Supported under Windows XP (32/64 bit), 2000, 2003, 2008,
NT4, Vista (32/64 bit), Windows 7 (32/64
bit), Linux (32/64 bit) |
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Linux call for info |
 | 5 year warranty |
DS460


QS422 PCI 5V 4 port Serial Communications Adapter Board/Card RS422/485 Isolated High Speed
Supports
communication speeds up to 10 Mbps
 | Fast speed: Default support up to 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:7 32/64, Vista 32/64, Win 95/98, Win
ME, Win XP/XP Pro, Win NT/NT Server, Win 2000/2003/8 32/64 bit Server |
 | Plug & Play in Linux (Call for RS485 info) |
 | 5 year warranty |
QS422


DS842 PCI Express 2 Port Serial 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: 7 32/64Vista 32/64, Win 95/98, Win
ME, Win XP/XP Pro, Win NT/NT Server, Win 2000/2003 & 2003/8 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
Special Baud Rate up to 10Mbps state what you require in the
comments


QS842 PCI Express 4 Port RS422 adapter to support 1x,
4x, 8x, 16x Lane bus slots
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 4 RS422 serial tports o any brand of computer system.
This single slot, standard height adapter is provided with support for Microsoft
Windows 7 32/64, 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 Transceivers |
 | Plug & Play Compatible |
 | Software Selectable NON-VOLATILE Clock
Divisors |
 | RS422 Electrical Interface |
 | 25 kv ESD Surge Serial Port Protection |
 | Short-Circuit / Thermal and current protected RS422
transceivers |
 | Transceivers contain onboard charge pump |
 | Device Driver support for: 7 32/64, Vista 32/64, Win 95/98, Win
ME, Win XP/XP Pro, Win NT/NT Server, Win 2000/2003 & 2003/8 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
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