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EoPDH mapper simplifies Carrier Ethernet system design

Sunnyvale, Calif.—Maxim Integrated Products has introduced the DS33X162, the first product in a line of new Ethernet mapping products.

The DS33X162 is a highly integrated Ethernet-over-PDH (EoPDH) mapping device that enables the delivery of new Carrier Ethernet services over the existing PDH telecommunications infrastructure. The device's configuration is extremely flexible for ease of design. It allows Ethernet transport from a single GbE or dual 10/100 Ethernet interfaces, and supports up to 16 T1/E1 links or 8 DS3 links with over 400-Mbit/s throughput. The DS33X162 thus covers the complete range of configurations defined in the EoPDH standards.

Prior to the DS33X162, designing equipment to utilize the full range of the ITU EoPDH standards required the use of complex NPUs or costly FPGAs.

The device performs Ethernet frame encapsulation in GFP-F, HDLC, or X.86 (LAPS). It also performs ingress policing, Ethernet service profiling, VLAN-based forwarding, priority-based forwarding, VLAN tagging, quality of service (QoS) priority scheduling, and enables Ethernet OAM. These functions are important attributes for delivering Carrier Ethernet services, as defined by the Metro Ethernet Forum. The distribution of traffic over multiple physical links is supported through hardware implementations of the VCAT and LCAS protocols. These protocols have been used extensively in SONET/SDH optical networks, but have recently been extended to wired networks through new standards, primarily ITU-T G.7041, G.7042, G.7043, and G.8040. The DS33X162 complies with these and many other telecommunications standards.

Maxim's Ethernet mapping product family includes nine devices starting with the 16-port DS33X162. Various other port configurations will be available, down to the single-port DS33X11. Customers can choose the optimal feature set required for each application. Devices in the 4- to 16-port range share a common footprint. All devices in the family share a common software architecture.

The DS33X162 is available in a 17mm x 17mm, 256-pin CSBGA package and is specified over the extended-industrial temperature range (-40°C to +85°C).

Pricing: The 16-port DS33X162 starts at $73.11 and the single-port DS33X11, $17.33 (5000-up, FOB USA). The DS33X162DK design kit and free software drivers are available to simplify application development.
Datasheet: Click here.

Maxim Integrated Products, www.maxim-ic.com

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