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USB adapters
FarSync Flex
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Universal PCI cards
FarSync OEM T2U - 2 port sync / async WAN card
- Overview
- Full details - 2 port, Linux API, Windows API, on card development
FarSync OEM T4U - 4 port sync / async (optional) WAN card
- Overview
- Full details - 4 port, Linux API, Windows API, on card development
FarSync OEM T4E - 4 port sync / async WAN card with clock sourcing options
- Overview
- Full details - 4 port, Windows and Linux API, flexible clock sourcing
FarSync OEM TE1 - T1 / E1 card
- Overview
- Full Details - E1 (G.703) / T1 Windows and Linux API
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PCI Express cards
FarSync T4Ue - 4 port sync / async WAN card
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PCMCIA cards
FarSync OEM M1P
Sync and Async USB, PCIe, PCI, PCI-X and PCMCIA Communications Cards with APIs for OEM development

USB, PCI Express, Universal PCI and PCMCIA bus communications cards with E1, T1, X.21, V.35, RS232C, EIA530, RS422 and RS449 WAN interfaces for synchronous and asynchronous operation
Overview - FarSync Flex
The FarSync Flex - A 1 port USB adapter designed to provide a high performance communications solution for use with TCP/IP and an API for companies who wish to quickly develop their own communications solutions. The API permits HDLC framed and transparent bit stream operation from Linux, Windows Vista, Windows XP and Windows Server 2003. The FarSync Flex SDK provides sample applications, source code, test programs and utilities that allow you to use the API very quickly.
Key Features
- Wide speed range - up to 2 Mbits/s synchronous full duplex
- X.21, V.35, RS232C, EIA530, RS449 WAN interfaces
- Synchronous and Asynchronous support
- internal and external clocks handling
- 1 communication port with ESD protection circuitry
- API for HDLC frame and transparent bitstream modes on Linux, Vista, Windows XP and Server 2003
- NRZ, NRZI, FM0 and FM1 signalling
- USB Bus powered
- USB 2.0 and 1.1 compliant
- CE and FCC class B approval
- SDK - optional Developers Toolkit - includes API documentation, utility applications, sample applications and source code
Further Information: FarSync Flex specification
Overview - FarSync OEM T1U PCI / PCI -X card
The FarSync OEM T1U - 1 port WAN Universal card and software is designed to provide a high performance communications solution for companies who wish to quickly develop their own communications products without incurring the cost of having to develop and approve hardware. There is an API to permit HDLC framed and transparent bit stream operation from Linux, Windows XP, 2000 and Server 2003. Royalty free source code is provided for the executive and synchronous line drivers with sample application, test programs and utilities that allow you to get the card working straight out of the box.
Key Features
- Wide speed range - up to 10 Mbits/s full duplex
- Maximum total bandwidth 20 Mbits/s
- X.21, V.35, RS232C, EIA530, RS449 WAN interfaces
- Synchronous and Asynchronous support
- 1 communication port with ESD protection circuitry
- Developers toolkit - utility applications, sample applications and source code
- API for HDLC frame and transparent bitstream modes on Linux, Windows XP, 2000, and Server 2003
- PCI and PCI-X compatible bus mastering Universal card
- Compatible with 3.3 and 5.0 volt signalling
- Downloadable executive and line drivers
- Powered from PCs 3.3 volt supply
- CE and FCC class B approval
Further Information: FarSync OEM T1U specification
Overview - FarSync OEM T2U PCI / PCI -X card
The FarSync OEM T2U - 2 port WAN Universal card and software is designed to provide a high performance communications solution for companies who wish to quickly develop their own communications products without incurring the cost of having to develop and approve hardware. There is an API to permit HDLC framed and transparent bit stream operation from Linux, Windows XP, 2000 and Server 2003. Royalty free source code is provided for the on board executive and synchronous line drivers with sample application, test programs and utilities that allow you to get the card working straight out of the box.
Key Features
- Wide speed range - up to 10 Mbits/s full duplex
- Maximum total bandwidth 40 Mbits/s
- X.21, V.35, RS232C, EIA530, RS449 WAN interfaces
- Synchronous and Asynchronous support
- Internal and external clocking
- 2 communications port with ESD protection circuitry
- Developers toolkit - utility applications, sample applications and source code
- API for HDLC frame and transparent bitstream modes on Linux, Windows XP, 2000, and Server 2003
- PCI and PCI-X compatible bus mastering Universal card
- Compatible with 3.3 and 5.0 volt signalling
- Downloadable executive and line drivers
- Powered from PCs 3.3 volt supply
- CE and FCC class B approval
Further Information: FarSync OEM T2U Specification
Overview - FarSync OEM T4U PCI / PCI -X card
The FarSync OEM T4U - 4 port WAN Universal card and software is designed to provide a high performance 4 port communications solution for companies who wish to quickly develop their own communications products without incurring the cost of having to develop and approve hardware. There is an API to permit HDLC framed and transparent bit stream operation from Linux, Windows XP, 2000 and Server 2003. Royalty free source code is provided for the executive and synchronous line drivers with sample application, test programs and utilities that allow you to get the card working straight out of the box.
Key Features
- Wide speed range - up to 10 Mbits/s full duplex
- Maximum total bandwidth 64 Mbits/s
- X.21, V.35, RS232C, EIA530, RS449 WAN interfaces
- Synchronous and Asynchronous support
- Internal and external clocking
- 4 communication ports with ESD protection circuitry
- Developers toolkit - utility applications, sample applications and source code
- API for HDLC frame and transparent bitstream modes on Linux, Windows XP, 2000, and Server 2003
- PCI and PCI-X compatible bus mastering Universal card
- Compatible with 3.3 and 5.0 volt signalling
- Downloadable executive and line drivers
- Powered from PCs 3.3 volt supply
- CE and FCC class B approval
Further Information: FarSync OEM T4U Specification
Overview - FarSync OEM T4E PCI / PCI -X card
The FarSync OEM T4E 4 port WAN card and software is designed to provide high performance hardware communications solutions for companies who wish to quickly develop their own communications products without incurring the cost of having to develop and approve hardware.
The T4E is a Universal PCI communications card (PCI and PCI-X compatible) with four independently configurable sync/async serial ports. Sync operation supports both bitsync (HDLC) and transparent bitstream of up to 10 Mbits/s per port with a total card bandwidth of 60 Mbits/s.
The unique feature of the T4E is the huge variety of clocking options. The clock can be:
- Internally generated using a local clock generator
- External from the WAN communications line
- External via a special H.100 clock bus connector
- Sourced on one port then routed to the others
- Multiplied or divided per port to obtain the required rate
- Independently configurable for each line
The product supports the standard Windows SDCI API, providing applications with direct access to the card's communications port/s for asynchronous, bit synchronous (HDLC) framing, and also transparent bitstream operation for video and voice type applications. The special clocking features are all accessible though the SDCI interface.
Support is included for the Linux Raw Sockets API that allows HDLC frames and transparent bitstream data to be sent and received. It also allows selection of the full range of clock modes. Full documentation, source code for the Linux driver and a sample application demonstrating both modes of operation is provided.
Key Features
- Wide speed range - up to 10 Mbits/s full duplex
- Maximum total bandwidth 60 Mbits/s
- X.21, V.35, RS232C, EIA530, RS449 WAN interfaces
- Synchronous and Asynchronous support
- Huge range of clock sourcing and routing options
- 4 communication ports with ESD protection circuitry
- Developers toolkit - utility applications, sample applications and source code
- API for HDLC frame and transparent bitstream modes on Linux, Windows XP, 2000, and Server 2003
- PCI and PCI-X compatible bus mastering Universal card
- Compatible with 3.3 and 5.0 volt signalling
- Powered from PCs 3.3 volt supply
- CE and FCC class B approval
Further Information: FarSync OEM T4E Specification
Overview - FarSync OEM TE1 PCI / PCI -X card
The FarSync OEM TE1 - 1 port E1 / T1 Universal card and software is designed to provide a high performance communications solution for companies who wish to quickly develop their own communications products without incurring the cost of having to develop and approve hardware. There is an API to permit HDLC framed and transparent bit stream operation from Linux, Windows XP, 2000 and Server 2003. Line drivers with sample application, test programs and utilities as supplied that allow you to get the card working straight out of the box.
Key Features
- E1 and T1 interfaces - RJ48 (RJ45) and twin coax connectors
- HDLC and Transparent bitstream support
- Unstructured and fractional support
- 1 communication port with ESD protection circuitry
- Developers toolkit - utility applications, sample applications and source code
- API for HDLC frame and transparent bitstream modes on Linux, Windows XP, 2000, and Server 2003
- PCI and PCI-X compatible bus mastering Universal card
- Compatible with 3.3 and 5.0 volt signalling
- Powered from PCs 3.3 volt supply
- CE and FCC class B approval
Further Information: FarSync OEM TE1 specification
Overview - FarSync T4Ue PCI Express card
The FarSync T4Ue card and software is designed to provide high performance hardware communications solutions for business, government and the military who need a PCIe synchronous communications card. The product includes an API to a low level driver that allows access to the communications features available in the hardware. Alternatively the card can connect to the standard TCP/IP protocol stack to allow access to IP based networks such as the Internet. The FarSync SDK provides a Developers Toolkit for the product.
Key Features
- Wide speed range - up to 10 Mbits/s full duplex
- Maximum total bandwidth 64 Mbits/s
- X.21, V.35, RS232C, EIA530 (RS422), RS449 WAN interfaces
- Synchronous and Asynchronous support
- External and card generated clocking
- 4 communication ports with ESD protection circuitry
- Developers Toolkit - utility applications, sample applications and source code
- API for HDLC frame and transparent bitstream modes on Linux, Windows XP, Vista, Server 2003, Server 2008
- Bus mastering PCI Express card
- CE and FCC class B approval
Further Information: FarSync T4Ue Specification
Overview - FarSync OEM M1P v2 PCMCIA card
The FarSync OEM M1P v2 - 1 port PCMCIA WAN card and software is designed to provide a communications solution for companies who wish to quickly develop their own communications products without incurring the cost of having to develop and approve hardware. There is an API to permit HDLC framed and transparent bit stream operation from Windows XP, 2000 and Server 2003. The product is supplied with a synchronous line driver with sample applications, test programs and utilities that allow you to get the card working straight out of the box.
Key Features
- Wide speed range - up to 512Kbits/s full duplex
- X.21, V.35, RS232C, EIA530, RS449 WAN Synchronous interfaces
- PCMCIA card, 1 communication port
- NRZ, NRZI, FM1 and FM0 plus other special modes
- ESD line protection circuitry
- CE class B approval
- Developers toolkit - utility applications, sample applications and source code
- API for HDLC frame and transparent bitstream modes on Windows XP, 2000, and Server 2003
Further Information: FarSync OEM M1P specification
| FarSync OEM PCI / PCI-X cards comparison overview of specifications | ||||
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For more detailed information about the particular card, click on the product name Note: The FarSync OEM TE1 is not listed in this table as it supports a different type of network interface. |
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| Product Name | FarSync OEM T1U | FarSync OEM T2U | FarSync OEM T4U | FarSync OEM T4E |
| Product Code | FS5140 | FS5240 | FS5440 / FS5441 (with async) | FS5444 |
| Warranty | 5 years | 5 years | 5 years | 5 years |
| Hardware Features | ||||
| Card Bus Type | PCI / PCI-X
32 and 64 bit bus PCI 2.2 compliant Bus Mastering |
PCI / PCI-X
32 and 64 bit bus PCI 2.2 compliant Bus Mastering |
PCI / PCI-X
32 and 64 bit bus PCI 2.2 compliant Bus Mastering |
PCI / PCI-X
32 and 64 bit bus PCI 2.2 compliant Bus Mastering |
| Max Port Count | 1 port | 2 port | 4 ports | 4 ports |
| Multiple Cards in a PC | 1 | 12 or more | 12 or more | 12 or more |
| Network Interfaces | RS232C, X.21, V.35, EIA530, RS449 | RS232C, X.21, V.35, EIA530, RS449 | RS232C, X.21, V.35, EIA530, RS449 | RS232C, X.21, V.35, EIA530, RS449 |
| Async support | yes | yes on 1 port | optional on 4 ports | yes on 4 ports |
| Card Size | Half card | Half card | Half card | Half card |
| Max Line Speed | 10 Mbits/s | 10 Mbits/s | 10 Mbits/s | 10 Mbits/s |
| Max Total Bandwidth | 20 Mbits/s | 40 Mbits/s | 64 Mbits/s | 60 Mbits/s |
| ESD Protection | Yes | Yes | Yes | Yes |
| Approvals | EN55022 class B, CE, FCC class B | EN55022 class B, CE, FCC class B | EN55022 class B, CE, FCC class B | EN55022 class B, CE, FCC class B |
| Line clocking (internal/external) |
Both, internal clock range: 9600, 19200, 38400 and 76800 baud. 2 |
Both, all ports selectable. Internal clock range 9,600 baud to 8Mbits/s. 2 |
Both, all ports selectable. Internal clock range 9,600 baud to 8Mbits/s. 2 |
Both, all ports selectable. Internal clock range 300 baud to 8.192 Mbits/s. 4 |
2 No special cables are required to use internal clocks for RS232C and X.21. For V.35 internal clocking the UX35C DCE cable should be used. Internal clocking is not supported for RS530. 3 No special cables are required to use internal clocks for RS232C and X.21. Internal clocking not supported on V.35 and RS530 connections 4 Uses it's own set of cables, see FarSync OEM T4E cables |
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| Extended clock generation and routing | No | No | No | Yes, external source, clock speed multiplication & division. Clock routing, see card features |
| Power requirements | 850mA @ +3.3 V < 5 mA @ +/-12 V (ESD suppression) 2.8 watts max |
< 1.2 Amp @ +3.3V < 5 mA @ +/-12V (ESD suppression) < 4 watts max |
< 1.75 Amp @ +3.3V < 10 mA @ +/-12V (ESD suppression) < 6 watts max |
< 1.75 Amp @ +3.3V < 10 mA @ +/-12V (ESD suppression) < 6 watts max |
| Loopback test connector | 1 port, supplied with card | 1 port, supplied with card | 4 port, supplied with card | |
| Cables | Order separately, see the FarSync OEM T-Series product range and compatible cables table | Order separately, see FarSync OEM T4E cables | ||
| Software Features | ||||
| Application Interfaces | Windows API - Enhanced SDCI Linux API - Raw Sockets |
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| Example Applications | Linux Raw Sockets sample application; Windows SDCI sample application; Simple on card application, uses the executive and line drivers. All example applications are in C, source provided. |
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| Manuals | ||||
| Programming Manuals | FarSync OEM Linux Raw Sockets Reference Manual, FarSync Windows SDCI SDK Reference Manual, FarSync On Card Programming Reference Manual (not for T4E) | |||
| Other | ||||
| Additional documentation | Specification/Programming Manuals for the major chips, Hardware Technical Reference Manual | |||
| FarSync OEM T-Series Product Range and compatible Cables | |||
|---|---|---|---|
| Product Name | Photo | Description | Product Code |
| Cards, Cables and Software - FarSync OEM TE1 | |||
| FarSync OEM TE1 | ![]() |
Intelligent 1 port Universal PCI / PCI-X OEM card (E1, G.703, G.704, T1) RJ48 (RJ45) and twin Coax connectors. 2 metre cable is included with the product | FS5150 |
| Cards and Software - FarSync OEM T1U and T2U | |||
| FarSync OEM T1U | ![]() |
Intelligent 1 port Universal PCI / PCI-X OEM card (X.21 / V.35 / RS232C / EIA530 / RS422 / RS449) | FS5140 |
| FarSync OEM T2U | ![]() |
Intelligent 2 port Universal PCI / PCI-X OEM card (X.21 / V.35 / RS232C / EIA530 / RS422 / RS449) | FS5240 |
| FarSync T2Ue | ![]() |
Intelligent 2 port PCI Express card (X.21 / V.35 / RS232C / EIA530 / RS422 / RS449) | FS5250 |
| Cables for the FarSync OEM T1U, T2U and FarSync T2Ue | |||
| UCR1 | Single RS232C (V.24, X.21bis) DTE cable, 1.5 metres, see pinouts | FS6061 | |
| UCX1 | Single X.21 (V.11, RS422) DTE cable, 1.5 metres, see pinouts | FS6062 | |
| UCV1 | Single V.35 DTE cable, 1.5 metres, see pinouts | FS6063 | |
| U530 | Single RS-530 (EIA530) DTE cable, 1.5 metres, see pinouts | FS6064 | |
| UX35C | Single V.35 special DCE cable where the DCE generates clocks, female connector, 1.5 metres. Suitable for the T1U, T2U and T4U only. | FS6095 | |
| Cards and Software - FarSync OEM T4U and FarSync T4Ue | |||
| FarSync OEM T4U | ![]() |
Intelligent 4 port Universal PCI OEM card (X.21 / V.35 / RS232C / EIA530 / RS422 / RS449) | FS5440 |
| FarSync OEM T4U+Async | ![]() |
Intelligent 4 port Universal PCI OEM card (X.21 / V.35 / RS232C / EIA530 / RS422 / RS449) supporting Synchronous and Asynchronous operation. | FS5441 |
| FarSync T4Ue | ![]() |
Intelligent 4 port PCI Express card (X.21 / V.35 / RS232C / EIA530 / RS422 / RS449) | FS5450 |
| FarSync T4Ue+Async | ![]() |
Intelligent 4 port PCI Express card (X.21 / V.35 / RS232C / EIA530 / RS422 / RS449) supporting Synchronous and Asynchronous operation. (Async on Windows only currently) | FS5451 |
| Cables for the FarSync OEM T4U and FarSync T4Ue | |||
| MCX4 | Quad X.21 (V.11) cable with male 15 pin D type connectors, 1.5 metres, see pinouts | FS6041 | |
| MCV4 | Quad V.35 cable with standard MRAC-34 (brick) male connectors, 1.5 metres, see pinouts | FS6042 | |
| MCR4 | Quad RS232C (V.24) cable with male 25 pin D type connectors, 1.5 metres, see pinouts | FS6043 | |
| The MTU4 conversion cable (detailed below) is available that allows cables listed above for the FarSync T1U, T2U and T2Ue to also be used | |||
| MTU4 | Quad port conversion cable 0.5 metres, allows UCR1, UCX1, U530 and UCV1 cables to be used | FS6074 | |
| Special Purpose Cables for all T-Series cards and M-series cards | |||
| Null-MX | X.21 double shielded crossover cable, 15 pin D type female connectors, 0.5 metres. Converts the DTE presentation into a DCE. Suitable for FarSync Flex, T-Series and FarSync M-Series cards, see pinouts |
FS6090 | |
| X21-EXT | X.21 double shielded 15 metre extension cable, 15 pin D type female to 15 pin D type male connector | FS6091 | |
| Null-MR3 | V.24 (RS232C) double shielded crossover cable, 25 pin D type female connectors, 0.5 metres. Converts the DTE presentation into a DCE. Suitable for FarSync Flex, T-Series and FarSync M-Series cards, see pinouts |
FS6092 | |
| Null-MR4 | RS530 (EIA530, RS422) double shielded crossover cable, 25 pin D type female connectors, 0.5 metres. Converts the DTE presentation into a DCE. | FS6097 | |
| X.21-449-INT | X.21 to RS449 - conversion cable for use when FarSync card generates the clock, 0.5 metres, see pinouts | FS6093 | |
| X.21-449-EXT | X.21 to RS449 - conversion cable for use when the clock externally generated (DCE Clock), 0.5 metres, see pinouts | FS6094 | |
02-Mar-2010









