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
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