XRT95L53 Datasheet | Exar

DESCRIPTION EXtendar 48M (XRT95L53) is a highly integrated OC48/STM-16, Quad OC-12/STM-4 & OC-3/STM-1 Multi-protocol Framer processor. This device bines 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 bination 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 OC48/OC-12/OC-3 interfaces, supports OIF pliant 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 bination of flexible packet framing and encapsulation features bined with optimal SONET transport capabilities make EXtendar 48M an ideal solution for Multi-service SONET transport, Core as well as DWDM systems. 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 - - patible with OIF pliant SPI-3 interface Performs capsulation G-header encapsulation/de- - G-header interface can be optionally disabled - Support - for contiguous pointer-based concatenation for higher order paths Supports mapping of Gigabit Ethernet to STS48C/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...