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參數(shù)資料
| 型號： | XRT94L43 |
| 廠商： | Exar Corporation |
| 英文描述： | SONET/SDH STS-12/STM-4 TO E3/DS3/STS-1 MAPPER/DEMAPPER |
| 中文描述： | SONET / SDH的STS-12/STM-4給E3/DS3/STS-1映射器/ DEMAPPER |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 180K |
| 代理商： | XRT94L43 |
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
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PRELIMINARY
XRT94L43
SONET/SDH STS-12/STM-4 TO E3/DS3/STS-1 MAPPER/DEMAPPER
SEPTEMBER 2001
REV. P1.0.0
GENERAL DESCRIPTION
The XRT94L43 is a highly integrated SONET/SDH
terminator designed for E3/DS3/STS-1 mapping/de-
mapping functions from either the STS-12 or STM-4
data stream. The XRT94L43 interfaces to either STS-
12 or STM-4 signals using a byte wide parallel inter-
face in Telecom Bus format or via serial line interface
that operates at 622.08 MHz.
The XRT94L43 processes the section,line and path
overhead in the SONET/SDH data stream. The pro-
cessing of path overhead bytes within the STS-1s or
TUG-3s includes 64 bytes for storing the J1 bytes.
Path overhead bytes can be accessed through the
microprocessor interface or via serial interface.
The XRT94L43 uses the internal E3/DS3 De-Syn-
chronizer circuit with an internal pointer leak algo-
rithm for clock smoothing as well as to remove the jit-
ter due to mapping and pointer movements. These
De-Synchronizer circuits do not need any external
clock reference for its operation.
The SONET/SDH transmit blocks allow flexible inser-
tion of TOH and POH bytes through both Hardware
and Software. Individual POH bytes for the transmit-
ted SONET/SDH signal are mapped either from the
XRT94L43 memory map or from external interface.
A1,A2 framing pattern, C1 byte and H1,H2 pointer
byte are generated.
The SONET/SDH receive blocks receive SONET
STS-3 signal or SDH STM-1 signal and perform the
necessary transport and path overhead processing.
The XRT94L43 provides a line side APS (Automatic
Protection Switching) interface by offering redundant
receive serial interface to be switched at the frame
boundary.
The XRT94L43 provides 12 mappers for performing
STS-1/VC-3 to STS-1/DS3/E3 mapping function, one
for each STS-1/DS3/E3 framers.
A PRBS test pattern generation and detection is im-
plemented to measure the bit-error performance.
A general purpose microprocessor interface is includ-
ed for control, configuration and monitoring.
FEATURES
Provides DS3/ E3 mapping/de-mapping for up to 12
tributaries through SONET STS-1 or SDH AU-3
and/or TUG-3/AU-4 containers.
Generates and terminates SONET/SDH sec-
tion,line and path layers.
Integrated SERDES with Clock Recovery Circuit.
Provides SONET frame scrambling and descram-
bling.
Integrated Clock Synthesizer that generates 622.08
MHz and 77.76 MHz clock from an external 12.96/
19.44/77.76 MHz reference clock.
Provides STS-1 (EC1) mapping/de-mapping for up
to 12 STS-1s.
Integrated 12 E3/DS3/STS-1 De-Synchronizer cir-
cuit that de-jitter gapped clock to meet 0.05UIpp jit-
ter requirements.
Access to Line or Section DCC
Level 2 Performance Monitoring for E3 and DS3.
Supports mixing of STS-1E and DS3 or E3 and
DS3 tributaries.
Performs STS-3/STM-1 to STS-12/STM-4 Map-
ping/De-Mapping.
E3 and DS3 framers for both Transmit and Receive
directions.
Complete Transport/Section Overhead Processing
and generation per Telcordia and ITU standards.
Complete Path Overhead processing and genera-
tion for one STS-12 or for 12 STS-1s
Full line APS support for redundancy applications.
Loopback support for both SONET/SDH as well as
E3/DS3/STS-1.
Boundary scan capability with JTAG IEEE 1149.1
8-bit microprocessor interface
Power Supply 2.5 V for Core and 3.3 V for I/O
-40°C to +85°C Operating Temperature Range
Available in a 516 Ball PBGA package
APPLICATIONS
Network switches
Add/Drop Multiplexer
W-DCS Digital Cross Connect Systems
相關PDF資料 |
PDF描述 |
|---|---|
| XRT94L43IB | SONET/SDH STS-12/STM-4 TO E3/DS3/STS-1 MAPPER/DEMAPPER |
| XRT94L33 | highly integrated SONET/SDH terminator |
| XRT94L33IB | highly integrated SONET/SDH terminator |
| XRT94L55 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| XRT94L55IV | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XRT94L43_06 | 制造商:EXAR 制造商全稱:EXAR 功能描述:SONET/SDH OC-12 TO 12XDS3/E3 MAPPER |
| XRT94L43A | 制造商:EXAR 制造商全稱:EXAR 功能描述:SONET/SDH OC-12 TO 12XDS3/E3 MAPPER |
| XRT94L43ES-L03 | 功能描述:界面開發(fā)工具 Eval System for XRT94L43 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XRT94L43ES-LC03 | 功能描述:時鐘合成器/抖動清除器 OC12-12XDS3MAPPER SCORPION 4x T73LC03A RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT94L43ES-R03 | 功能描述:時鐘合成器/抖動清除器 OC12-12XDS3MAPPER SCORPION 4x T75R03 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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