Specifications

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2.10.11 DS-3 Physical Interface Cards for M-xxx Routers
The four-port DS-3 Physical Interface Card (PIC) for M-series Internet
backbone routers provides high levels of DS-3 density, conserving valuable
POP rack space. M-series DS-3 connections are increasingly used for
connecting corporations and other high-bandwidth subscribers to Internet
backbones for greater throughput and faster response times.
Features
§ Wire-rate throughput on all ports at speeds up to 44.736 Mbps, full
duplex
§ Integrated data service unit (DSU) functionality
§ Full instrumentation per port
§ Scrambling support
§ Subrate clocking support
For more information, refer to the following datasheet :
DS-3 PIC for M-series Routers
2.10.12 E3 Physical Interface Cards for M-xxx Routers
The four-port E3 Physical Interface Card (PIC) offers high-density E3
(34.368 Mbps) connectivity. The E3 PIC provides wire-rate performance
and market-leading port density, making it an ideal choice for both
backbone and high-speed access applications.
Features
§ Wire-rate throughput on all ports at speeds up to 34.368 Mbps, full
duplex
§ Supports large frame sizes (up to 4,500 bytes) for efficient throughput
For more information, refer to the following datasheet :
E3 PIC for M-series Routers
4-port DS-3 PIC for
M20 and M40 routers
4-port E3 PIC for M20
and M40 routers