Product category:
Boards and Backplanes
News Release from: Schroff UK | Subject: CompactPCI backplanes
Edited by the Electronicstalk Editorial
Team on 27 October 2005
Backplanes meet latest cPCI
specifications
A new 64bit range of CompactPCI backplanes with rear I/O for CompactPCI systems with horizontal board assembly conform to PICMG 2.0 Rev 3.0.
Schroff has developed a new 64bit range of CompactPCI backplanes with rear I/O for CompactPCI systems with horizontal board assembly that conform to PICMG 2.0 Rev 3.0 The backplanes for 6U CompactPCI hot-swapable boards are available as two-, four-, six- and eight-slot versions (1, 2, 3 and 4U)
This article was originally published on Electronicstalk on 24 Feb 2000 at 8.00am (UK)
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Schroff reckons its new modular CompactPCI backplanes offer systems developers significantly more design freedom while keeping costs low.
They are constructed as continuous monolithic 9U backplanes, with an integrated 3U wide area for plug-in 3U/8HP power supplies with P47 connectors.
Through the monolithic solution the effort of cabling between the power backplane and the CompactPCI backplane, the voltage loss of cables and connectors can be avoided.
As standard there are one or two connection possibilities (P47 connectors) on the 19in CompactPCI power supplies, which can operate in parallel or redundantly.
Further reading
Bridges extend CompactPCI backplanes
Schroff has developed a range of bridges for extending CompactPCI backplanes beyond eight slots.
175W and 350W supplies for CompactPCI 19in racks
Schroff, one of the industry's leading manufacturers of CompactPCI Microcomputer Packaging solutions, has unveiled a complementary range of 19" power supplies.
With the backplane for 3U systems it is possible to connect three power supplies and with the 4U systems even four connections for CompactPCI power supplies can be realised.
The network connectors are below P1, in order to reduce the voltage loss further.
The FAL/DEG signals of the power supplies are routed separately to a connector to make them accessible from the outside.
Additionally the signals are grouped and fed to the systems slot for evaluation by the CPU board.
A possible power supply failure is registered by the CPU board and definite measures can be initiated immediately.
The system slot is located at the bottom left, which allows to use double width CPUs (8HP).
Apart from the usual connectors for CompactPCI backplanes from Schroff, such as utility and IPMB, further connectors for the connection of a fan tray and various temperature sensors are available.
Space saving in the bottom area of the backplane makes it possible to run ribbon cables from the rear transition module to possible hard discs (3.5in) which can be integrated into a CompactPCI system in unoccupied power supply slots.
In a 4U system this allows designers to accommodate, for example, one power supply and three hard discs or two power supplies and two hard discs.
The power supply of the hard discs is carried out via power connectors on the rear of the backplane.
For the connection of further components power bugs for 5, 3.3 and +/-12V and V I/Os with 3.3 or 5V are also arranged in the lower part of the backplane.
The backplanes are arranged as ten-layer boards with ceramic capacitors in SMD technology.
The geographic address of the backplane is determined, but can easily be changed by the user with SMD 0ohm resistors.
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