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XRT95L53 Datasheet(PDF) 1 Page - Exar Corporation |
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XRT95L53 Datasheet(HTML) 1 Page - Exar Corporation |
1 / 4 page Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com xr XRT95L53 EX tendAR-48M PRODUCT BRIEF OC-48 ETHERNET/SONET MULTI-SERVICE FRAMER PROCESSOR FEBRUARY 2005 REV. P1.0.0 GENERAL DESCRIPTION EXtendar 48M (XRT95L53) is a highly integrated OC- 48/STM-16, Quad OC-12/STM-4 & OC-3/STM-1 Multi-protocol Framer processor. This device combines standard OC-48/STM-16, Quad OC-12/ STM-4, OC-3/STM-1 SONET framer functions with a flexible packet interface as well as a range of framing and encapsulation techniques integrated on a single chip. EXtendar 48M supports Generic Framing Procedure (GFP) in combination with Virtual Concatenation & LCAS, LAPS, POS, ATM and DS3 capabilities configurable on a per-channel basis. EXtendar 48M is the industry's first device to integrate 48 DS3/Fractional DS3 framers on a single chip. EXtendar 48M, in addition to the SONET OC- 48/OC-12/OC-3 interfaces, supports OIF compliant SPI-3 interface with optional support for Exar's proprietary G-header interface. Using this industry first G-header interface, EXtendar 48M provides framing and encapsulation support for RPR, MPLS or proprietary client data that need to be transported over SONET. The unique combination of flexible packet framing and encapsulation features combined with optimal SONET transport capabilities make EXtendar 48M an ideal solution for Multi-service SONET transport, Core as well as DWDM systems. APPLICATIONS • Multi-Service Provisioning Platforms (MSPPs) • SONET/SDH add/drop and terminal multiplexers • Ethernet Over SONET Platforms (MTU/MDU) • L2/L3 Switches & Routers KEY FEATURES • System-side Interfaces ■ Single OIF compliant SPI-3 interface with optional support for G-header interface ■ OC-12/STM-4 Serdes Interface (4x1- bit@622Mhz) • Line-side Interfaces ■ Working and protect OC-48/STM-16 Serdes Interfaces (4-bit@622Mhz) - Supports TFI-5 interface ■ Quad OC-12/STM-4/OC-3/STM-1 Serdes Interfaces (4x1-bit@622Mhz/155Mhz) • Support for flexible mapping of client data on a per channel basis into optimal SONET/SDH payloads using Frame-based GFP (GFP -F) ■ Maps Ethernet data into SONET/SDH payloads using GFP ■ Maps PPP frames into SONET/SDH payloads using GFP -F ■ Supports GFP mapping of RPR, MPLS or proprietary client data using the G-header interface ■ Supports add/drop of client management frames from/to the microprocessor interface • Supports a G-header interface in order to effectively map RPR, MPLS or proprietary client data over SONET ■ Compatible with OIF compliant SPI-3 interface ■ Performs G-header encapsulation/de- capsulation ■ G-header interface can be optionally disabled • Support for contiguous pointer-based concatenation for higher order paths ■ Supports mapping of Gigabit Ethernet to STS- 48C/AU4-16C, STS12C/AU4-16C or STS3C/ AU4 or STS-1/AU3 • Support for a SPI-3 interface with up to 256 logical sub-channels and individual channel flow control • Support for High Order and Low Order Virtual concatenation with optional Link Capacity Adjustment Scheme (LCAS) ■ Supports flexible mapping of multi-protocol traffic into standards based high order virtual concatenation channels of STS-3c-Xv/VC-4-Xv as well as STS-1-Xv/VC-3-Xv ■ Supports mapping of multi-protocol traffic into standards based low order virtual concatenation channels of VT6/VT2/VT1.5 ■ Supports a total of 64 Virtual Concatenation Groups (VCG's) ■ Supports Link Capacity Adjustment Scheme per ITU-T G.7042 ■ Provides up to 256 ms of differential delay compensation using external SDRAM interface • Terminates and processes Section, Line and Path Overhead on OC-48/STM-16, OC-12/STM-4 and OC-3/STM-1 interfaces ■ Support for extensive performance monitoring on the SONET/SDH interfaces • Support for on-chip STS-1 cross-connect between the OC-12 Add/drop interface and the Lineside interfaces • Support for UPSR and 1+1 Linear Automatic Protection Switching PRELIMINARY |
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