GENERAL DESCRIPTION • The S/UNI-9953-POS is a single chip ATM, POS User-Network Interface operating at 9953.28 Mbit/s. The S/UNI 9953-POS is intended for use in OC-192c and high-density OC-48c POS/ATM applications. FEATURES • Supports framing, scrambling/ descrambling and pointer processing for the following: • STS-192c (STM-64-64c). • 4 x STS-48c (4 x STM-16-16c). • STS-192 (STM-64) channelized down to STS-48c (STM-16c). • Supports alarm signal insertion/detection, B1/2/3 processing and insertion/termination of SONET Section/Line/Path overhead bytes (or SDH equivalents). • Provides ATM and POS payload processing for: • STS-192c (STM-64-64c) • 4 x STS-48c (4 x STM-16-16c). • STS-192 (STM-64) channelized down to STS-48c (STM-16c). INTERFACES • Provides SATURN® POS-PHY™ Level 4 16-bit LVDS System-side Interface (clocked at 700 MHz nominal). • Directly connects to optics via 16 bit by 622 MHz OIF SFI-4 (OIF99.102) lineside interface. POS/ATM • Implements the ATM Forum User Network Interface Specification and the ATM physical layer for Broadband ISDN according to CCITT Recommendation I.432. • Implements the Point-to-Point Protocol (PPP) over SONET/SDH specification according to RFC 2615(1619)/1662 of the PPP Working Group of the Internet Engineering Task Force (IETF). GENERAL • Provides internal FIFOs (16 KB ingress, 20 KB egress) to accommodate system latencies. • Provides line-side and system-side loopbacks for system level diagnostic capability. • Provides support for automatic protection switching (APS) via two 16- bit LVDS 777.76 MHz ports. • Provides a generic 16-bit microprocessor bus interface for configuration, control and status monitoring. • Standard 5 signal P1149.1 JTAG test port. • Low power 1.8 V CMOS core logic with 3.3 V CMOS/TTL compatible digital inputs and digital outputs. • Industrial temperature range (-40 °C to +85 °C). • 1152 pin FCBGA package. APPLICATIONS • Edge and Core Routers. • Multi-Service (Multi-Protocol) Switches. • SONET/SDH add/drop multiplexers and optical cross-connects. • WAN and Edge ATM switches. • Up-link cards. • SONET/SDH ATM/POS test equipment. • Emerging DPT, IPT and GFP applications.
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