Interconnection


PXI backplane capability extended

22 October 2003 Interconnection Integrated Solutions Security Services & Risk Management

APW Electronics has flattened the PXI development curve by developing an extensive library of modular 3U and 6U standard PXI backplane designs to enable customers to specify their required combination of slot widths and power options.

The PXI backplanes support 33 MHz and 66 MHz clock speeds and 32 bit and 64 bit operation in both 3,3 V and 5 V signalling environments. 33 MHz systems can be up to eight slots wide, 66 MHz systems are constrained to five slots by the specification.

Systems wider than eight slots can be implemented in a monolithic backplane using addressable rear pallet bridges to connect the individual bus segments. The bridge itself spans five slot widths; it can be fitted to the rear of any suitable slots on the two segments and multiple bridges can be used in a single backplane if required.

In addition to the CompactPCI signals on P1/J1 and the 64-bit signals duplicated on P2/J2, the backplane distributes the PXI-specific signals, such as the trigger bus, the reference clock, the user-defined local buses, and the star trigger located on P2/J2. The 10 MHz reference clock achieves less than 1 ns skew required in the specification. Eight bus lines are allocated for inter-module synchronisation and communication; these lines can also be used for the distribution of variable frequency clock transmissions, allowing multiple modules to share a timebase that is not a derivative of the 10 MHz PXI clock.

The modular design approach mirrors the concept of PXI itself, enabling system integrators to benefit from a large library of standard designs from which to construct their robust configurable PXI-based instruments. In addition to the backplane itself, APW also manufacture the subracks conforming to IEEE1101.10 and IEEE1101.11 required to mount the backplane and house the plug-in modules and power converters. All individual elements of the subsystem can be easily configured to the specific requirements of the application.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Digital link 40x faster than broadband Internet
Hiconnex Interconnection
Axon’s AxoMach high-speed links were recently qualified by the European Space Agency to the ESCC 3409/001 standard, and are designed to transmit data at speeds of up to 40 Gbps for space applications.

Read more...
Modular CAT7 inter-car-connection
Hiconnex Interconnection
These modular connectors are particularly suitable for harsh environments, and have a high resistance to industrial vibration and an IP67 protection rating.

Read more...
Multi-channel cable assembly
RFiber Solutions Interconnection
Withwave’s Multi-Channel SMPM Cable Assemblies (WMCM Series) provide a wide range of multiple coax connectors and flexible cable assemblies, with a choice of 26,5, 40 and 50 GHz configurations.

Read more...
Compact power relays
Future Electronics Interconnection
The new HE-R Series power relays by Panasonic Industry are PCB-mounted relays for easy board assembly, with both two- and four-pole contact arrangement options.

Read more...
High-speed AWG generates up to 20 sine waves
Vepac Electronics Test & Measurement
Spectrum Instrumentation has released a new firmware option for its range of versatile 16-bit Arbitrary Waveform Generators, with sampling rates up to 1,25 GS/s and bandwidths up to 400 MHz.

Read more...
High-density multicoax cable assembly
RFiber Solutions Interconnection
Withwave’s high speed and high-density Multicoax Cable Assemblies (WMX Series) provide a wide range of multiple coax connectors and flexible cable assemblies with a choice of 20, 40, 50, 67 or 110 GHz configurations.

Read more...
Centralised distribution for M8 and M12 connectors
Communica Interconnection
Amphenol LTW’s distribution boxes facilitate efficient cable management, easy installation with pre-wired configuration, and provide a centralised distribution point for M8 and M12 connectors.

Read more...
What is an RF connector?
Spectrum Concepts Editor's Choice Interconnection
If you look across the broader electromagnetic spectrum, the selection of the 3 kHz to 300 GHz frequency range for RF signals is a result of a balance between propagation characteristics, data transmission requirements, regulatory allocations, and the compatibility of electronic components and devices.

Read more...
Multi-head battery contacting solutions
Electronic Industry Supplies Interconnection
INGUN has developed contacting solutions which boast low contact resistances, maximum reduced power losses, and stable, durable electrical connections in either single- or multi-head contacting configurations.

Read more...
Deception technology crucial to unmasking data theft
Information Security Security Services & Risk Management
The ‘silent theft’ of data is an increasingly prevalent cyber threat to businesses, driving the ongoing leakage of personal information in the public domain through undetected attacks that cannot even be policed by data privacy legislation.

Read more...