Text backplane - Elma Bustronic Corp.

July 8, 2010
A new two-slot test backplane for VPX board developers and integrators is designed to the latest VITA-46 specifications.

A new two-slot test backplane for VPX board developers and integrators is designed to the latest VITA-46 specifications. Users can power up and test their J1 fabric connections as they would be interconnected in the target application. Signals are passed from one slot to the next via high-speed interconnecting cables, via signals introduced through the J1 fabric connector, or accessed on the J1 fabric connector using the test backplane’s SMA and SATA cable headers. The backplane accepts 6U cards with the 3U size supported by use of a shelf divider. The slot pitch is 1.6-in. wide to accommodate attaching probes.
The VPX solves a signal access issue with VPX systems that use rear-transition-module (RTM) boards. VPX cards, usually developed together with an RTM module, do not access J1 fabric signals. The new backplane lets the primary J1 fabric signals be accessed/connected without interfering with the use of an existing RTM module designed for J2-J6 IO connector signals. It also lets users interconnect two or more such blades before needing a custom VPX backplane.
Additional two-slot backplanes can be used in a larger chassis to interconnect the J1 primary fabric in any serial topology desired. The A channel input, using SMA cables, accepts up to 10 Gbps and the B, C, and D channel inputs using the SATA II connectors accept up to 3.125 Gbps. There are eight power studs for VS1, VS2_A, VS2_B, VS3, and 4 GND as well as fastons for 3.3 V, ±12 V, and VBAT. There are also two 5-pin IPMB headers for SMB-0 and SMB-1.
Elma Bustronic Corp., 44350 Grimmer Blvd., Fremont, CA 94538, (510) 490-7388, www.bustronic.com

© 2010 Penton Media, Inc.

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