Prometheus OC-48/STM-16 EoPDH Mapper

The AT4848 is a highly integrated OC-48/STM-16 or OC-12/STM-4 Multiservice Add/Drop Multiplexer (ADM) on a chip. The device can be used in a variety of next generation data over SONET/SDH systems including Multiservice Provisioning Platforms (MSPP), broadband access and enterprise customer premise equipment with an integrated ADM. The AT4848 has integrated cross-connects supporting DS0, VT/TU and STS/VC level switching. The device includes MACs and framers for a range of drop side interfaces including Fast Ethernet, Gigabit Ethernet, storage and video protocols, SONET/SDH and high density DS1/E1s and DS3/E3s. The AT4848 supports Frame and Transparent GFP mapping, SONET/SDH HI/LO and PDH virtual concatenation (VCAT) and LCAS with 128 groups. The AT4848 provides VLAN/MPLS applications with on-chip L2 Aggregation & Management and RPR MAC. An OIF SPI interface is available for expansion through an external network processor, additional Ethernet or additional RPR MAC. Download Short Data Sheet

Ganymede OC-12/STM-4 EoPDH Mapper

The AT1250 provides a multi-format and multi-rate Ethernet and common legacy data over PDH, PDH mapped to SONET/SDH or direct SONET mapping. On the PDH side, the chip provides a parallel multiplexed PDH bus carrying 12 DS3s or 12 E3s or 336 DS1s or 252 E1s or any mixture of them. A simple FPGA is used to convert parallel DS1/E1/DS3/E3 signals on the PDH bus to the serial signals required for the LIUs for pin count expansion. The 336DS1/252E1s signals can be accessed directly on the PDH bus or be multiplexed to 12 channelized DS3/E3s via 12 embedded M13/E13 engines or mapped to SONET/SDH. The chip supports a dual OC-12/STM-4/OC-3/STM-1 SONET/SDH interface with 1+1 protection, UPSR and mapping of DS1/E1/DS3/E3 to SONET/SDH. On the Ethernet side, the chip provides 8 Fast Ethernets via SMII/SS-SMII bus and 2 Gigabit Ethernet ports with on-chip CDRs. It also supports an OIF SPI-3 bus to support external devices such as a Packet Switches, Network Processor to provide extended L2+ or L3 level processing or expansion of the Ethernet ports. The AT1250 supports ATM, GFP-T/F, HDLC, PPP and LAPS encapsulation. A Traffic Aggregation and Management at Layer 2 for VLAN/MPLS with Classifying, Policing, Queuing, Shaping, and Scheduling is provided. It provides direct SONET/SDH mapping, SONET/SDH/PDH virtual concatenation (VCAT) and LCAS with 128 groups in accordance with G.7041, G.8040, G.7042 and G.7043. The AT1250 includes flexible channel assignment for all applicable SDH and SONET mappings. A serial port is provided for ESCON, DVB-ASI or low speed Fiber Channel SAN applications. Download Short Data Sheet

Amalthea OC-12/STM-4 EoPDH Mapper Lite

The AT1240 provides a multi-format and multi-rate Ethernet and common legacy data over PDH, PDH mapped to SONET/SDH or direct SONET mapping. On the PDH side, the chip provides a parallel multiplexed PDH bus carrying 3 DS3s or 3 E3s or 84 DS1s or 63 E1s or any mixture of them. A simple FPGA is used to convert parallel DS1/E1/DS3/E3 signals on the PDH bus to the serial signals required for the LIUs for pin count expansion. The 84DS1/63E1s signals can be accessed directly on the PDH bus or be multiplexed to 3 channelized DS3/E3s via 3 embedded M13/E13 engines or mapped to SONET/SDH. The chip supports a dual OC-12/STM-4/OC-3/STM-1 SONET/SDH interface with 1+1 protection, UPSR and mapping of DS1/E1/DS3/E3 to SONET/SDH. On the Ethernet side, the chip provides 8 Fast Ethernets via SMII/SS-SMII bus and 2 Gigabit Ethernet ports with on-chip CDRs. It also supports an OIF SPI-3 bus to support external devices such as a Packet Switches, Network Processor to provide extended L2+ or L3 level processing or expansion of the Ethernet ports. The AT1240 supports ATM, GFP-T/F, HDLC, PPP and LAPS encapsulation. A Traffic Aggregation and Management at Layer 2 for VLAN/MPLS with Classifying, Policing, Queuing, Shaping, and Scheduling is provided. It provides direct SONET/SDH mapping, SONET/SDH/PDH virtual concatenation (VCAT) and LCAS with 128 groups in accordance with G.7041, G.8040, G.7042 and G.7043. The AT1240 includes flexible channel assignment for all applicable SDH and SONET mappings. A serial port is provided for ESCON, DVB-ASI or low speed Fiber Channel SAN applications. Download Short Data Sheet