Press Release Summary:
Dedicated for GPON (ITU-T G.984) network, PAS7401 is used to build power- and performance-optimized GPON ONT in Single Family Unit (SFU), Multiple Dwelling Unit (MDU), or similar configurations. It integrates GPON SERDES, MAC, and packet-processing functions together with ARM9 controller, dual Gigabit Ethernet UI, TDM interface, and dedicated DSP for VoIP processing. Simultaneous and sustained 2 Gbps downstream and 1.244 Gbps upstream throughput is provided at all packet sizes.
Original Press Release:
PAS7401 GPON ONT SoC
Features
The PAS7401 is PMC-Sierra's second generation GPON ONT System-on- Chip (SOC), dedicated for use in a GPON (ITU-T G.984) network. The PAS7401 is an optimized device for building a high-performance, extremely low-power and low-cost GPON ONT in Single Family Unit (SFU), Multiple Dwelling Unit (MDU), or similar configurations. The PAS7401 integrates the GPON SERDES, MAC and packet-processing functions, together with an integrated ARM9 controller, a dual Gigabit Ethernet user interface, a TDM interface, and a dedicated DSP for VoIP processing.
The PAS7401 is based on PMC-Sierra's field-proven GigaPASS networking architecture, which provides market-leading throughput and quality of service (QoS). The PAS7401 provides simultaneous and sustained 2 Gbit/s downstream and 1.244 Gbit/s upstream throughput at all packet sizes. The GigaPASS networking engine provides TR-101 based networking features, compliant with FSAN CTS specifications, including 802.1p/q bridging, packet classification, filtering and queuing, traffic shaping and policing.
PRODUCT BENEFITS
Full ITU-T G.984 GPON ONT functionality with integrated CPU and a comprehensive software package
GigaPASS Wire-speed performance - Simultaneous 2 Gbit/s downstream and 1.244 Gbit/s upstream sustained throughput at any packet size.
Advanced classification engine - supports classification, mapping and filtering according to L2/L3/L4 fields, double-tagged VLANs, MLD and IGMP multicast.
Advanced QoS features - flexible queuing features enable queuing per user/service with WFQ/SP scheduling, shaping, and policing per queue
Power down modes - supports SuperSave power down mode, which enables up to 95% ONT power reduction during power outages and standby periods
High Integration and RBOM optimization
Interoperability - PAS7401 uses PMC field-proven GPON protocol stack and is guaranteed to provide the highest level of interoperability
Low Power - Typical 1 W at 1 Gbit/s throughput
FEATURES
ITU-T G.984 compliant GPON ONT SOC
Line rate operation - 2.488 Gbit/s downstream; 1.244 Gbit/s upstream
Supports 8 T-CONTs
Supports 256 Port-IDs
Supports NSR/SR DBA
US and DS FEC
AES decryption
Integrated SERDES and CDR
Embedded ARM926 controller
Embedded VoIP subsystem supports four fully-featured VoIP channels
Throughput - 2 Gbit/s downstream and 1.244 Gbit/s upstream at any packet size
802.1x authentication engine
802.3x flow control at the UNI
Multi-protocol classifier includes:
Ethertype
L2/L3/L4 source and destination address/IP/Port; IPv4/IPv6 support
Single/Double VLAN table; VLAN insert/remove/exchange operations
DSCP
Multicast group (MLDv2 and IGMPv3)
QoS and Traffic Shaping features:
Internal frame buffer, dynamically shared between US and DS
Multiple queues in upstream and downstream with flexible mapping, shaping and scheduling per user/service
Per Port-ID upstream configurable rate limiter and coloring
Broadcast rate limiting
416-pin BGA package, 27 mm x 27 mm, industrial temp grade
1 W typical, 1.5 W thermal power consumption at 1 Gbit/s throughput
SOFTWARE
PAS7401 is provided with a comprehensive, turnkey-level software package which includes:
Fully featured GPON protocol stack and networking drivers
Fully featured ONT OMCI stack
Complete DSP driver package
G.711, G.729a, G.729ab, G.723.1 Codecs
RTP
Flexible API for 3rd party SIP integration
Sample SIP application
Based on Linux 2.6 kernel
Maintains API compatibility to Chicago chipset
API enables integrating 3rd party protocol stacks and applications
REFERENCE DESIGN
The PAS7401 reference platform is a fully featured GPON ONT. It is available in the following configurations:
Indoor ONT with 1 x PON, 4 x GE, 2 x POTSs
SFU with 1 x PON, 1 x GE, 2 x POTS, and Home Network adapter
INTERFACES
2.488/1.244 Gbit/s GPON port with integrated CDR/SERDES
2 x GMII/MII Ethernet ports with optional 802.3ad link aggregation for connectivity to standard switch ICs or PHY devices
TDM - Dual DS1/E1 direct framer connection
Voice - 2 x dual SPI/MPI interface for direct connection to SLIC/SLAC devices supports up to 4 x FXS ports
16-bit DDR2 SDRAM memory
32-bit memory controller for flash and peripherals access
16 x dedicated GPIO and 5 x alarm inputs, 12 x LED outputs
UART and JTAG interfaces
