Concurrent Technologies has announced the new addition to its range of networking PMC mezzanine cards. The new CL PMC/GB4 is a two channel optical fiber adaptor supporting dual SFP connectors with board options for 1000Base-SX multi-mode or 1000Base-LX single-mode fiber interfaces. Commercial and extended temperature versions are available. The board will be particularly suitable for defence or industrial applications requiring a high level of noise immunity and higher data throughput while maintaining a wider separation of network nodes.
The new card provides high-speed networking through the Intel 82546Gbyte Gigabit Ethernet controller, providing individual MAC and frame controllers supporting 64Kbyte Tx/Rx FIFO ports, along with IP, TCP and UDP checksum off-loading. Supporting 1000Base-SX over 850nm multi-mode fiber connections or 1000Base-LX over 1310nm single-mode fiber connections, the adaptor's physical connection to a network is through SFP transceiver modules. By using SFP connectors, the card provides the user with the flexibility to choose the appropriate standard fiber or copper transceiver modules for their particular application.
The CL PMC/GB4 is a single-size card and is compliant with the CMC (Common Mezzanine Card) specification. The adaptor complies with the PCI specification, features 3.3 or 5V signalling and 32bit or 64bit transfers, can operate at PCI-33/PCI-66 or up to PCI-X 133, and includes bus master capability. The adaptor does not require an onboard PCI bridge as the Intel 82546GB is a dual channel controller that connects straight to the host board's PCI bus. A 512Kbyte BIOS EPROM is supported in a 32pin PLCC JEDEC socket and includes PXE firmware.
This board can be used with the company's CompactPCI, VME, VXS host boards or any other PMC compliant host board. The Intel 82546GB Gigabit Ethernet controller is supported by advanced operating systems and hence the integration is simplified.
