Concurrent Technologies announces their new VXS packet switched serial fabric board, the FX 210/018, to operate alongside their range of VMEbus VXS packet switched single board computers. The FX 210/018 is an “unmanaged” embedded 1000Mbps baseband IEEE 802.3 switching platform, conforming to VITA 41.3, providing a low cost, low power, packet switching solution for voice/data communications.
Typically consuming less than 16 Watts, the FX 210/018 supports eighteen payload boards, an inter-switch link and up to four Ethernet ports on the front panel. The switch core contains a wire-speed, Layer 2, Quality of Service (QoS) switch fabric. The FX 210/018 supports VITA 38 system management, user configuration port and hot insertion/removal to the backplane. Extended temperature variants are also available, including -40°C to +85°C. Typical applications include networking equipment, VoIP telephony systems, data management and multiple blade servers.
Utilizing the Marvell(R) Prestera(R) 98DX240 single chip serial switch device, the FX 210/018 sustains full duplex full wire speeds on all twenty-four ports. Ports 1 to 18 are used for connection to the VXS payload boards. Port 19 and port 20 form a x2 SerDes inter-switch link to connect to a second FX 210/018 board for switch redundancy or load balancing. And, optionally on the front panel, ports 21 to 24 are via four Gigabit Ethernet interfaces or ports 21 to 22 are via two 1000Base-SX multimode optical fiber interfaces.
The switch device “learns” and caches up to 8192 MAC addresses in its forwarding database. The switch can handle time-critical/multimedia traffic such as voice, video and data as it utilizes four hardware priority queues (fixed or fair-weighted) per port and supports a range of QoS traffic classifications: port ID, IEEE 802.1p and IPv6. The board’s health and status can also be monitored via an IPMB0 interface to an on-board microcontroller, providing system management support compatible with VITA 38.
For applications that require an embedded serial switch in an industry standard VXS chassis, the FX 210/018 provides a reliable low power switch. The payload boards govern the operating system requirements.
VXS VITA 41.3 Technical Notes:
The VXS base standard defines physical features that enable high-speed serial interconnects in a VME64x compatible system. These features include a high speed VXS P0/J0 connector on a VME64x payload board (e.g. VX 407/04x), a VXS backplane/chassis infrastructure and up to two switched serial fabric boards. The ratio of one VXS P0/J0 connector per payload board to many on a central network switch board lends itself to a star network topology; where each payload board is connected to a port on the FX 210/018. For higher reliability and/or load balancing, two FX 210/018 boards can interconnect on the same VXS backplane communicating via a x2 SerDes inter-switch link.
The VITA 41.3 standard defines an implementation of IEEE Standard 802.3 within the VXS framework that provides 1000Mbps full-duplex data transfer over two differential pairs using 8B/10B encoding and baseband signaling. This implementation is based on 1000BaseCX as defined in IEEE Standard 802.3- 2002, Clause 39 and is referred to as 1000Mbps baseband IEEE 802.3 signaling. VITA 41.3 is useful for both data and control planes in medium-performance applications that follow a packet-based communications model – system determinism is improved as no data transfer on a specific payload link will be interrupted by a higher priority transfer or have to wait for a bus transaction to complete before acquiring the communications hardware. VITA 41.3 is attractive because of the wide range of readily available low-cost hardware and software that has been developed using the IEEE 802.3 standard.
About Concurrent Technologies
Concurrent Technologies is an international ISO 9001:2000 company specializing in the design and manufacture of commercial-off-the-shelf and custom designed industrial computer boards for real-time embedded applications. The company, which was founded in 1985, has offices in the USA, China and UK as well as a worldwide distributor network. In addition to its original Multibus II product line the company has a wide range of high performance Intel(R) processor based VME, CompactPCI(R) and AdvancedMC(R) products, which are complemented by an extensive offering of PMC (PCI Mezzanine Card) products. Concurrent Technologies is an Affiliate Member of the Intel(R) Communications Alliance (ICA), a community of communications and embedded developers and solution providers.
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