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PM7344 参数 Datasheet PDF下载

PM7344图片预览
型号: PM7344
PDF下载: 下载PDF文件 查看货源
内容描述: SATURN QUAD T1 / E1 MULTI -PHY用户网络接口设备 [SATURN QUAD T1/E1 MULTI-PHY USER NETWORK INTERFACE DEVICE]
分类和应用: 网络接口
文件页数/大小: 293 页 / 1101 K
品牌: PMC [ PMC-SIERRA, INC ]
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PM7344 S/UNI-MPH  
DATA SHEET  
PMC-950449  
ISSUE 6  
MULTI-PHY USER NETWORK INTERFACE  
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APPLICATION EXAMPLES  
Figure 1  
- Example 1. T1 or E1 Multi-PHY ATM UNI  
1.544 MHz Transmit Reference Clock  
DSX-1  
or  
PM7344  
S/UNI-MPH  
PM4314  
QDSX  
E1  
Analog  
Interfaces  
Quad T1/E1  
Multi-PHY  
Quad DSX-1/E1  
Analog Line Interface  
SCI-PHYTM  
Multi-PHY  
User Network Interface  
ATM Cell Bus  
Generic  
Or 12.352 MHz  
Crystal Oscillator Clock  
37.056 MHz  
Microprocessor  
Bus  
Example 1 shows the PM7344 S/UNI-MPH used with the PM4314 QDSX to  
implement a quad T1/E1 UNI where the DS1 or E1 signals are presented on  
DSX-1 or E1 electrical interfaces.  
In this example, the DSX-1 or E1 line interface functions are provided by the  
QDSX and the DS1 or E1 framing functions are provided by the S/UNI-MPH.  
Note that many other standard DSX-1 or E1 line interface devices are also  
compatible with the S/UNI-MPH. The S/UNI-MPH also provides the ATM cell  
processing functions associated with the PHY layer, including the implementation  
of a SCI-PHY multi-PHY interface to the ATM layer device(s). The combination  
of the QDSX device with the S/UNI-MPH allows both ANSI/ITU compliant DSX-  
1/E1 analog signals and ATM Forum UNI 3.1 and ITU G.804 compliant DS1/E1  
digital signals to be processed. The UNI 3.1 and G.804 specifications define  
ATM cell mappings for a variety of transmission formats, including the 1.544  
Mbit/s DS1 and the 2.048 Mbit/s E1 formats.  
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE  
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