Broadcom launches variable-rate transceiver at Networld + Interop

28 April 2003 Las Vegas Lightwave--At Networld + Interop 2003, Broadcom, a provider of silicon technologies enabling broadband communications, introduced the BCM8228 VariRate transceiver for communications and storage area networking applications. With the new transceiver, system OEMs can develop single linecards that feature a host of transmission protocols and speeds from the same physical link.

Apr 28th, 2003

28 April 2003 Las Vegas Lightwave--At Networld + Interop 2003, Broadcom, a provider of silicon technologies enabling broadband communications, introduced the BCM8228 VariRate transceiver for communications and storage area networking applications. With the new transceiver, system OEMs can develop single linecards that feature a host of transmission protocols and speeds from the same physical link.

The BCM8228 provides interfaces at data rates ranging from 155 Mbits/sec up through 2.666 Gbits/sec. The services supported by the BCM8228 include telecom services at OC-3 (155 Mbits/sec), OC-12 (622 Mbits/sec) and OC-48 (2.5 Gbits/sec); datacom services at Gigabit Ethernet (1-Gbit/sec); and storage area network Fibre Channel services (1- and 2-Gbits/sec).

With the BCM8228, service providers will be able to provide new services or upgrade existing services from a single linecard and can reduce their operational expenses by eliminating the need to maintain an inventory of multiple linecards for each protocol and data rate. Maintenance costs will also be lowered since all of the protocols reside within a single card versus multiple cards, reducing the amount of resources and hardware required to maintain the services.

The BCM8228 device can be deployed in a wide range of equipment for metropolitan area and wide area networks including routers, switches, and SONET/SDH systems. Due to its multi-protocol capabilities, the BCM8228 is well suited for multi-service provisioning and switching platforms, the latest generation of SONET/SDH equipment.

Broadcom's BCM8220 OC-48 transceiver, which was introduced two years ago, has been utilized by a broad base of key OEMs that designed the chip into a variety of systems. The new BCM8228 offers a range of new features, such as variable rate technology and integrated SONET/SDH mapper and demapper functionality.

According to market research, SONET/SDH equipment represents over 60% of the total optical transport market and is expected to resume significant growth from 2004 onward. One primary area of growth (beginning in 2003) is SONET/SDH systems for metro networks and, in particular, the new multi-service provisioning and switching platforms. These applications also address the fast growing demand for storage and datacom services within metro and access networks.

The BCM8228 implements transmit and receive functions for various data protocols (and their associated rates) including Gigabit Ethernet, Fibre Channel, Fiber Connection (FICON), Enterprise System Connection (ESCON), and OC-3/12/48 with or without forward error correction.

The BCM8228 VariRate transceiver/mapper features jitter generation of less than 4mUI rms (4-milli unit interval root mean square) when operating in OC-48 mode. The device offers a large and advanced feature set that includes SONET/SDH rate adaptation and performance monitoring that provides the mapping and demapping functions to transform STS-3/STM-1 and STS-12/STM-4 data streams into or from STS-48/STM-16 frames. The new single-chip also provides high-jitter tolerance and low jitter generation, which exceeds Optical Internetworking Forum, IEEE 802.3, Telcordia, ANSI, and ITU-T standards.

The BCM8228 can be powered with a single 1.8V supply or a dual 1.8/3.3V supply without any special power supply sequencing requirements. It is housed within a 196-pin, 15x15-mm BGA package and features low-power dissipation of less than 1.1W. Unused blocks can be powered down to decrease power dissipation even further.

Samples of the BCM8228 VariRate transceiver are currently available to all customers at a unit price of $150 per 1,000 units. Broadcom also offers a complete evaluation kit including reference designs, evaluation boards, GUI-based software and documentation.

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