29320-BRF-001-A [TE]
12-Port DS3/E3/STS-1 Electrical Integrated Line;
| 型号： | 29320-BRF-001-A |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | 12-Port DS3/E3/STS-1 Electrical Integrated Line |
| 文件： | 总2页 (文件大小：502K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
>
KEY FEATURES
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.
> High-density - 12
DS3/E3/STS-1 LIUs
with jitter attenuation/
desynchronization
> STS-12/STM-4 SONET/SDH
TDM framer
> Parallel 8-bit, 77.76 MHz TDM
Telecom Bus
> 24 DS3/E3 framers
> Dual high speed serial LVDS
> 12 DS3/E3 mappers/
demappers
622 MHz interface
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
> Dual embedded OC-12 CDRs
> 12 STS-1 SONET/SDH
framers
mapped/demapped signals to/from SONET/SDH interface.
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 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.
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.
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.
>
In addition, the M29320 supports Pseudo-Random Bit Sequence
testing, and a full set of loopback functions are provided at different
functional blocks.
The M29320 requires only one 19.44 MHz reference clock (passive
crystal) or seven 7.76/155.52 MHz SONET reference clocks for gener-
ating all the necessary internal line rate clocks and enabling the same
reference clock to be available on an output pad. The M29320 is
offered in a 35mm FCBGA package.
OH Access
M29320
12x DS3/E3
24x
DS3/E3
Framers
to STS-1E
Mapper/
Demapper
STS-12
Active
622 MHz Active LVDS
622 MHz Protected LVDS
8-Bit 77 MHz
12 Lines
DS3/E3/
STS-1E
(EC-1)
12x DS3/E3
or
STS-1E
LIU + DJAT
OC-12
Mux/
Lines
Demux
Mini-
STS-12
Protected
Framer
and
Built-In
CDR
Telecorn
Bus
12x
PRBS
Generator
and Monitor
STS-1
Framers
Microprocessor
Interface
JTAG
Test I/F
STS-1 Overhead Access
Systems Control
STS-12 Overhead Access
M29320 Functional Block Diagram
Product Features
•
12 DS3/E3/STS-1E LIUs with jitter
attenuation/desynchronization
•
•
12 STS-1 SONET/SDH framers
support transport overhead access;
includes monitor and generator
•
•
Synchronous 16-bit microprocessor
interface bus at 30–77 MHz bus rate
Applications
•
•
•
ADM/OEDs
-
Fully adaptive receive equalizer
enables greater than 1800 ft of
cable reach
Local (source) and remote (line)
loopback capability at various
internal points in the device
DSLAM & NGDLC
STS-12/STM-4 SONET/SDH TDM
supporting mapping/demapping of
12 STS-1E or AU-3 into/from STS-
12/STM-4 frame
Digital Access Cross-Connect
Systems
-
-
Fully programmable transmit
pulse mask configuration
•
PRBS detector and generator
supporting framed and unframed
modes
-
-
Pointer processing
Dynamic loop bandwidth to
comply with all SONET and
Bell Core intrinsic and output
jitter requirements
Transport overhead insertion
and extraction
•
•
JTAG (IEEE 1149.1) boundary scan
Single rail 1.8 V core supply with
3.3 V LvTTL I/O, 1.8V LVDS I/O
-
-
Parallel 77.76 MHz x 8-bit Telecom
bus interface
•
•
24 DS3/E3 framers support DS3-
M13, DS3-M23, DS3 C-bit parity E3-
G.751, E3-G.832
•
Embedded CLADs internally gener-
ating the three line rate
(DS3/E3/STS-1) clocks
Dual serial LVDS 622 MHz Bus
interface with embedded CDR
with support for no-bit-loss
switching
12 DS3/E3 mappers/demappers
supporting DS3/VC-3/AU-3;
DS3/TUG-3/AU-4; E3/VC-3/AU-3;
E3/TUG-3/AU-4
™
www.mindspeed.com/salesoffices
General Information: (949) 579-3000
Headquarters – Newport Beach
4000 MacArthur Blvd., East Tower
Newport Beach, CA 92660-3007
29320-BRF-001-A M03-0789
© 2003 Mindspeed Technologies . All rights reserved. Mindspeed and the Mindspeed
logo are trademarks of Mindspeed Technologies. All other trademarks are the property
of their respective owners. Although Mindspeed Technologies strives for accuracy in all
its publications, this material may contain errors or omissions and is subject to change
without notice. This material is provided as is and without any express or implied
warranties, including merchantability, fitness for a particular purpose and non-
infringement. Mindspeed Technologies shall not be liable for any special, indirect, inci-
dental or consequential damages as a result of its use.
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