29320-BRF-001-A Datasheet, PDF (1/2 Pages) M/A-COM Technology Solutions, Inc. – 12-Port DS3/E3/STS-1 Electrical Integrated Line

12-Port DS3/E3/STS-1 Electrical Integrated Line
Termination Device for Transport Networks
M29320 - Single Chip Solution
The M29320 provides a complete physical-layer solution
for flexible high-bandwidth DS3/E3 services, including
secure private leased lines and video conferencing. The
M29320 replaces up to 3 discrete devices, enabling cost-
effective DS3/E3 services to be deployed in both new and
existing platforms.
The M29320 includes 12 independent DS3/E3/STS-1E elec-
trical line interface units (LIUs) with built-in digital jitter
attenuators (DJAT), 24 DS3/E3 framers (12x in receive and
12x in transmit for monitoring only), and 12 STS-1 framers.
Each port is capable of supporting DS3/E3/STS-1E
mapped/demapped signals to/from SONET/SDH interface.
The M29320 line side interfaces support electrical
DS3/E3/STS-1E, requiring only the addition of trans-
formers and passive termination.
The M29320 system interface supports STS-12/STM-4
for the SONET/SDH traffic via dual high speed serial
LVDS (622 Mbps) interfaces as active and protect, or a
standard 8-bit, 77 MHz TDM telecom bus.
Granularity of service is an important feature of this
device. It can take a channelized OC-12 connection and
break it all the way down to DS3/E3 streams.
> KEY FEATURES
> High-density - 12
DS3/E3/STS-1 LIUs
with jitter attenuation/
desynchronization
> 24 DS3/E3 framers
> 12 DS3/E3 mappers/
demappers
> 12 STS-1 SONET/SDH
framers
> STS-12/STM-4 SONET/SDH
TDM framer
> Parallel 8-bit, 77.76 MHz TDM
Telecom Bus
> Dual high speed serial LVDS
622 MHz interface
> Dual embedded OC-12 CDRs
Densely channelized OC-12 line cards, enabled by the
M29320, are becoming enormously popular at the edge of
the network as carriers backhaul all their traffic to an
access Point-of-Presence (POP) where they will terminate
the customer traffic in an edge router or multiservice
switch before transporting it onto the internet
SONET/SDH backbone.
The M29320 integrates 12 DS3/E3/STS-1E mapper/
framers, with corresponding field-proven desynchronizers
using DSP technology (DJAT) and an STS-12/STM-4
SONET/SDH framer, to support DS3/E3/STS-1E mapping
into SONET/SDH on a channel-by-channel basis. This allows
ADMs/OEDs and MSPPs to deploy a single line card that
supports the simultaneous mapping and transport of
both DS3 and E3, which is significant for European and
Asian carriers as their networks have a mix of DS3 and E3
that must be transported across their SDH infrastructure.
>