Alfa Test is the XJTAG local partner for the Eastern Europe, providing solutions for boundary scan testing in both stand-alone and integration with other testing application such as functional test.

XJTAG is a leading supplier of IEEE Std. 1149.1 compliant boundary scan development tools. Its JTAG (Joint Test Action Group) development system offers a highly competitive solution for designers and developers of electronic circuits.


XJLink2 is a small, portable, USB hardware devices that provide a high speed interface (480Mbps) to the JTAG chain on a circuit board. The small, lightweight design means the XJLink2 can easily be moved to the Unit Under Test (UUT). Advanced features, like their programmable JTAG signal pin position, switchable power supply and auto signal skew, make it easy to connect to a wide range of circuit boards. Simple to install and use due to the USB plug-and-play ability


XJQuad is a 4-port version of the XJLink2 USB-to-JTAG controller. It is supplied with XJRunner software for running XJDeveloper test systems. With a range of special features it is particularly suitable for manufacturers. Each of the four ports has a high-speed interface which can be connected to up to four TAPs on each Unit Under Test (UUT).


The PXI XJLink2 module allows the integration of XJTAG into PXI-based test systems. PXI XJLink2 has one JTAG controller that can be connected to up to 4 JTAG chains, which are configurable for pinout and voltage. It is easily integrated with LabVIEWTM with a full set of Virtual Instruments (VIs) included.

XJIO Board

The XJIO board is an expansion unit that enables you to improve the test coverage for a Unit Under Test (UUT) by verifying the signals right through to the external connections. It will integrate with your XJTAG test system to provide access to otherwise inaccessible areas of your circuit.

With a range of digital and analogue I/O pins on the board, you can improve fault isolation, verify power rail levels, and dispense with costly custom test jigs – even for non-JTAG boards.


  • 208 digital I/Os with user-configurable voltage range – 1.8V to 3.3V (5V tolerant)
  • On-board 8 channel ADC and DAC, controlled using JTAG
  • Fully expandable to meet your needs
  • Switches and LEDs for user interaction
  • ‘Black box’ testing for non-JTAG boards
  • Reusable, replacing costly custom test jigs
  • Standard IDC connectors
  • USB or 12V power supply
  • RS232 / UART

The XJAccelerator is a multipurpose unit that can be integrated with your XJTAG system to facilitate and accelerate programming functions as well as extending test coverage on a Device Under Test (DUT).


  • Reconfigurable
  • FPGA board
  • Supports SPI, IIC, ICSP, SWD and other protocols
  • Supports NOR and NAND flash devices

XJIsolator provides galvanic isolation between a Device Under Test (DUT) and a JTAG controller. Its small form factor means an XJIsolator board can be easily mounted inside a test fixture.


  • Isolation for voltages up to 443 Vrms
  • Supports TCK clock frequencies, up to 50 MHz
  • Very low uni-directional propagation delay, typically 8 ns
  • Single power supply required, referenced to DUT ground
  • Flexible power supply voltage: 5 V to 15 V
  • Variable I/O voltages from 1.8 V to 3.3 V (set by JTAG controller or DUT)
  • 5 V I/O voltage option available
  • Offers 8 isolated signal channels configured as 6 downlink and 2 uplink

XJExtender is XJTAG’s recommended solution to overcome signal integrity issues when connecting an XJLink or XJLink2 JTAG controller to a remote Device Under Test (DUT). By using differential signalling, XJExtender allows you to work with a DUT up to 10 meters from the XJLink, even in electrically noisy environments.


  • Standard 26-way IDC connectors support cost-effective ribbon cable for board-to-board connection (twisted-pair ribbon cable recommended for best performance)
  • TCK clock frequencies up to 50 MHz
  • Flexible power supply voltage: 5 V to 15 V (2 required, not included)
  • Variable I/O voltage from 1.8 V to 3.3 V (when used with XJLink2)
  • Provides 8 channels configurable as uplink or downlink (default configuration: 6 downlink/2 uplink)
  • Controller unit plugs directly into XJLink2 though standard 20-way IDC interface• Target unit connects directly to DUT using standard 20-way IDC socket
Adaptor Boards

Termination & Protection Board

20-way 0.1” connectors in and out.
Terminal to central ‘test’ GND point.
Pads for termination / ESD protection.

Signal Breakout Board

Allows oscilloscope or test meter access to the signals used when connecting the XJLink2 JTAG Controller to a DUT.

Splitter / Signal Integrity Board

20-way 0.1” into two 20-way 0.1” connectors. Improves signal integrity by putting a ‘hard ground’ between each active signal.

Splitter / Signal Integrity Board SFF

20-way 0.1” into two 20-way 0.1” connectors. ‘Hard grounds’ between active signals. Small Form Factor. Fits XJQuad.

Splitter / Signal Integrity Board PXI

20-way MDR connector into two 20-way 0.1” connectors. ‘Hard grounds’ between active signals. Fits PXI-XJLink2.

Xilinx Adaptor

20-way 0.1” connector to a standard Xilinx 14-way 2 mm connector.

0.1” to 2 mm Adaptor

20-way 0.1” connector to a 20-way 2 mm connector.

0.1” to 1.27 mm Adaptor

20-way 0.1” connector to a 20-way 1.27 mm connector.

2x 10-way 2 mm Adaptor

20-way 0.1” connector into two 10-way 2 mm connectors.

2x 10-way 0.1” Adaptor

20-way 0.1” connector into two 10-way 0.1” connectors.


XJRunner is the specialized run-time environment for executing pre-compiled  XJDeveloper projects. With a range of special features it is particularly aimed at board manufacturers and in-field support. I one package, you have interconnect testing, in-system programming, non-JTAG device testing, serial number handling and configurable log files for your audit trail.


XJAnalyser is a powerful tool for real time circuit visualization and debugging. It provides a graphical view of JTAG chains, giving you complete control, on a pin-by-pin basis, of both pin state (either driven as an output or tristated as an input) and pin value (either high or low when driven), and it has the facility to run SVF and STAPL / JAM files.


XJInvestigator allows you to diagnose manufacturing problems on failing boards. Combining the test capabilities of XJRunner and XJAnalyser with additional diagnostic functionality, XJInvestigator is the boundary scan tool to use at your repair/rework station.


XJDeveloper is a graphical application that allows you to quickly and easily set up and run tests on your circuit. With XJDeveloper you can reduce your time to market by reusing your test scripts all the way through the product design process and then in manufacturing.

XJDeveloper’s built-in connection test, combined with XJEase tests for non-JTAG devices, checks your boards for short-circuit and open-circuit faults. Using XJDeveloper you can easily create or customize tests. The DFT analysis allows you to see your boards’ test coverage while the built-in netlist explorer provides a simple interface for you to view the connectivity between devices.


XJFlash is an FPGA-based advanced and innovative method that uses JTAG for high-speed in-system programming (ISP) of flash memories – all serial and parallel flash devices are supported. The most common use of XJFlash is programming the SPI/QSPI NOR flash used to configure an FPGA.

With XJFlash you can use the FPGA on your board to achieve flash programming speeds up to 50 times faster than those possible using conventional boundary scan techniques, often reaching the maximum speed for the flash memory.


Rent equipment

Renting test and automation equipment is an alternative most don’t consider when they have an immediate or short-term requirement for a certain test or automation application. Short term, immediate requirements for test equipment come up often; instances of equipment failure, project overload, unique testing and many other circumstances make renting test and automation equipment a desired service.