FarSync X25 T2U – A 2 port Universal PCI X.25 card
FarSync X25 T2U – A 2 port Universal PCI X.25 card
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The FarSync X25 T2U Universal PCI card provides 2 high performance X.25 communications lines for Linux and Windows systems.
Overview
The FarSync X.25 T2U product is a high quality X.25 solution for business, government and military applications, it has been developed to provide high performance, versatile X.25 connectivity for Linux and Windows systems.
The Universal PCI card will support 2 X.25 lines at speeds to over 2.048 Mbits/s. The highly flexible universal network connector supports RS232, X.21, RS530, RS449 and V.35 network interfaces.
Features under Linux:
The T2U card installs seamlessly as a plug and play device under the popular Linux 32 and 64 bit distributions. The card supports Linux kernel versions 2.6.12 onwards in 32 and 64 bit formats, including the leading distributions supplied by Red Hat, SuSE, CentOS, Ubuntu, Debian, Fedora, Slackware and more. SMP (multi-processor)
systems are supported. Configuration is by a Java based GUI.
There are APIs to the X.25 layer, a Sockets based interface and a Java API. There is also an API to the ISO Transport layers (ISO 8073 – connection oriented).
IP over X.25 support is included permitting TCP/IP operation over an X.25 network.
XOT (X.25 over TCP/IP) support is available as an option, using the same API’s as X.25. XOT can operate at the same time as X.25.
Up to 254 connections per port are supported as standard or up to 4095 connections using the FarSync
X25 High Capacity Pack.
FarSite is committed to supporting the FarSync X25 T2U on new versions of Linux and Linux kernels as they are released. The source code for the driver and the libraries for the API are supplied with the product, allowing rebuilding by the end user for use with almost any of the current or future Linux variants. The driver supports both big-endian and little-endian memory storage formats.
Features under Windows:
The T2U card installs seamlessly as a plug and play device underWindows 10, 8, 7, Vista, Windows Server 2016, 2012 and 2008. 32 and 64 bit Windows operating systems are supported.
The X.25 software has a host of features including ISO Transport (classes 0 to 3), support for OpenFT FTAM, a WinSock2 compliant Sockets API, a Java API, and a COM Port API. The Sockets API is also accessible from .NET applications. Up to 4095 connections can be supported using the FarSync X25 High Capacity Pack or 254 per port as standard.
IP over X.25 support is included permitting TCP/IP operation over an X.25 network.
X.25 Developers Toolkit: A comprehensive Developers Toolkit for development using APIs to X.25 and ISO Transport is included with each product covering Linux and Windows. A multi-port Line Monitor and a Line Statistics application are also supplied.
Watch our informative video about our X.25 products
Typical Applications
The FarSync X25 T2U card is suitable for connection to all types of X.25 networks, X.25 over the ISDN D channel and leased lines. Typical applications include:
Private X.25 networks such as Lottery, Police, Customs, Military, Fishery, Financial, Government and Airline
E-Commerce gateways for credit verification
Mixed X.25 and IP networks
SMS message gateways
Billing and Mediation
FTAM access
ATM connections
Lottery terminals
X.400
PC / Server based X.25 switch with XOT
The card is compatible with all public X.25 networks, such as Datex-P, BT X.25 Direct, Eirpac, Austpac, Transpac and Itapac to name just a few.
FarSync X25 T2U – Hardware Details
The FarSync X25 T2U 2 port card runs an AMD processor with SRAM and an embedded HDLC controller connected to the Server/PC through an Universal PCI bus.
External (line generated) clocking is supported. The T2U also supports card generated clocks speeds from 9600 baud to 8.192 Mbits/s.
PCI Bus Specification
The FarSync X25 T2U card is suitable for systems with a PCI or PCI-X bus, covering single processor systems, multi-processor systems and processors featuring HyperThreading technology. The card is PCI revision 2.2 compliant with support for both 3.3 and 5 volt signalling, the power for the card is taken from the 3.3 volt supply rail.
The FarSync X25 T2U card may be fitted in either 32-bit PCI bus slots or 64-bit PCI-X bus slots as this Universal PCI card will work perfectly well in both.
Multiple Cards
The drivers supplied with Windows and Linux allow large numbers of ports to be supported by the installation of multiple FarSync X25 T2U cards in a Server. Typically 12 or more cards can be supported; the card limit is only dependent on the PCI / PCI-X slot count and resources available in the host Server and the total bandwidth of the PCI bus.
TCP/IP over X.25
The IP over X.25 support is included as part of the FarSync X25 T2U product
and is integrated into Linux and Windows.
Linux Features: IP over X.25 support complies with RFC 1356 (IP over
X.25). Higher level protocols that run over IP including TCP, UDP, HTTP and FTP are supported.
Windows Features: The IP over X.25 support complies with RFC 1356 (IP over X.25), for single and multiple X.25 destinations. Higher level protocols that run over IP including TCP, UDP, HTTP and FTP are supported.
Application developers have a choice of APIs for X.25 and ISO Transport. An API selector guide is provided to assist the developer in choosing the most appropriate interface. The comprehensive Developers Toolkit is included with the product.
For Linux the XOT extension allows applications using the same API to transmit data over XOT (X.25 over TCP/IP). TCP/IP is normally routed over Ethernet on PCs and Servers. The XOT support is compatible with FarSite’s FarLinX X25 Gateway and also other manufacturers XOT products. The XOT and X.25 interfaces can be used simultaneously.
The FarSync XOT Extension for Linux should be ordered at the same time that the FarSync X25 card is purchased, although a retrofit is possible.
For Windows there is FarSync XOT Runtime software for Windows available that allows XOT to run over the PCs standard TCP/IP connection such as an Ethernet card.
FarSync X.25 High Capacity Pack option
An optional high capacity pack is available for the FarSync X25 T2U. The FarSync X.25 High Capacity Pack allows up to 4,095 simultaneous connections to be made; a huge increase from the standard 254 on each line. The expanded capacity applies to SVC, PVC and ISO Transport connections.
Customer applications developed to use the standard X.25 Sockets API are compatible with the FarSync X25 High Capacity Pack.
The FarSync X.25 High Capacity Pack is available for Windows and Linux, it should be ordered at the same time that the FarSync X.25 T2U is purchased although a retrofit upgrade is possible. One FarSync X.25 High Capacity Pack is required per card. See Order Information.
Windows Port Manager showing configuration of a T2U for X.25
Linux Adapter Manager showing X.25 configuration of a T2U
Configuration
For both Windows and Linux configuration is by a GUI configuration application, rapid installation and easy configuration are key features of the product.
The X.25 line can be reconfigured and restarted without reloading the software.
Many of the parameters such as DTE / DCE selection are determined automatically. Selecting the line speed by default automatically sets suitable timer and retry values. An advanced tab permits users to exactly specify the configuration of the line if necessary.
Cables
The cable and connector configurations available for the FarSync X25 T2U are described in the FarSync product range and compatible cables table. Crossover cables or DTE to DCE conversion cables also sometimes referred to as null modem cables, are also available.
Packaging
The X.25 software firmware, drivers, utilities and the X.25 Developers Toolkit are all included on the CD supplied with the FarSync card. Cables are ordered separately.
The CD-ROM supplied with the FarSync X25 T2U includes:
Drivers for Linux, Windows 10, 8, 7, Vista, Windows Server 2016, 2012 and 2008
Numerous example applications with source code
Documentation for all the APIs in Adobe PDF format
Source code for Linux drivers and API Libraries
Network monitor and various useful utility programs
New releases of the software with enhancements and fixes are made available for free download from the Download page in the Support section of this web site.
Software Technical Specifications
Operating Systems supported
Windows 10, 8, 7, Vista, Windows Server 2016, 2012 and 2008. 32 and 64 bit Windows operating systems are supported.
Linux distributions supplied by Red Hat, SuSE, CentOS, Ubuntu, Debian, Fedora, Slackware and others with kernel versions from 2.6.12 onwards
Linux Kernel support
All sub versions of kernel releases from 2.6.12 onwards. The products may operate successfully with earlier or later versions of the kernel but no specific testing has been undertaken by FarSite.
SMP (Multi-Processor Systems)
The software has been designed for and tested on SMP Servers
32 and 64 bit systems
The FarSync X25 T2U can be used on 32 and 64 bit systems under Linux and Windows
X.25 Features
X.25 CCITT compliance
1980, 84 & 88
DTE/DCE operation
Both and Automatic detection and selection
Maximum SVCs (all types)
254 sessions on each line, any mix of bothway, incoming and outgoing
4,095 sessions using the High Capacity Pack,
any mix of bothway, incoming and outgoing
254 connections on each line
4095 connections with the High
Capacity Pack
Data Packet size range
0 to 4096 bytes
Data packets per second throughput
More than 2000 pps
X25 facilities supported
Reverse charging, Closed User Group (CUG), Network User Identifier (NUI), Fast Select, Packet and Windows size negotiation, Extended sequence numbering (128), Throughput Class Negotiation.
Types of network connection
X.25 packet switch, leased line, dial up (X.32 and dial on DTR)
Accessible via API
Four APIs, a Sockets based interface, a Java API, a COM Port API and a legacy NCB API.
IP over X.25
Supported, complies with:
RFC 1356 on Linux and Windows
X.25 switch
X.25 Switch daemon available on Linux for free download for use with the FarSync X25 T2U
XOT Option Features
XOT Specification
Complies with RFC 1613 – X.25 over TCP (XOT)
Maximum XOT connections
4095 on Windows and Linux
Maximum SVCs and PVCs
4095 on Windows and Linux (any mix of SVCs and PVCs)
Data packets size range
0 to 4,096 bytes
OOB (Out of Band) data
Supported for Interrupts, Resets and the D bit
X25 facilities supported
Closed User Group (CUG), Network
User Identifier (NUI), Fast Select, Packet and Windows size negotiation,
Throughput Class Negotiation.
Accessible via API
Two APIs, a Sockets based interface, a Java
API
ISO Transport Features
Supplied with the X.25 software
Included with both the standard product and the High Capacity Pack
RS232: 75 baud up to 128 Kbits/s
X.21, V.35, RS530, RS449, RS422: 75 baud to over 2.048 Mbits/s
ESD protection
Yes, Littelfuse high speed ESD and over-voltage protection
LED line status indicators
2 line status
Approvals
EN55022 class B, CE,
FCC class B
Power requirements
< 1.2 A @ +3.3v, < 5 mA @ +/- 12v (for ESD suppression only), < 4 watts max
Operating Temperature Range
0 to 60°C ambient air temperature.
Note: a higher temperature range version -20 to +60°C ambient air temperature is available as an option, contact us for details.
MTBF
295,857 hours – calculation based on Bellcore Method 1 Case 3, 40 deg.C ambient, 15 deg.C case temperature rise above ambient.
Line clocking
(external and card generated)
Card generated and External supported
Card generated clock range 9,600 baud to 8,192 Mbits/s.
No special cables are required to use card generated clocks on RS232, X.21 and RS530 (RS422).
Card generated clocking is supported on V.35 and RS449 with the use of cables designed for card generated clocks.
