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參數(shù)資料
| 型號(hào)： | PM5372-BI |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁(yè)數(shù)： | 23/169頁(yè) |
| 文件大?。?/td> | 989K |
| 代理商： | PM5372-BI |
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TSE Transmission Switch Element Datasheet
Released
Redundant Fabrics
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1991258, Issue 7
23
4.3
All of the TSE fabrics discussed above can be replicated to form dual redundant fabrics (as shown
in Figure 1) for 1+1 Equipment Protection. Support for this feature is independent of the TSE -
it requires error detection and dual ports in the feeder devices (e.g. TBS and the S/UNI-
MACH48) as well as dual LVDS ports and failure switch-over logic in the TBS.
4.4
Non-STS-48 Loads
The TSE also supports both STS-12 and STS-192 loads. Each STS-12 device consumes only one
parallel port (8 bits at 77.76 MHz) on a TBS or S/UNI-MACH48, whereas an STS-48 device
consumes all four parallel ports (4 * 8 bits at 77.76 MHz) on a TBS or S/UNI-MACH48. Each
STS-192 device consumes all four parallel ports on four TBS or S/UNI-MACH48 devices. The
TSE/TBS (or S/UNI-MACH48) fabric sees only sets of STS-12 ports; as the TSE/TBS (S/UNI-
MACH48) fabric supports any STS-1 to STS-1 permutation, the possible collection of STS-1s or
STS-12s into STS-48s or STS-192s is immaterial to the fabric.
STS-192 loads permit TSE fabrics to grow to eight or sixteen planes, in which two or one STS-12
LVDS links are used to communicate between the STS-192 sources and the multiple planes of the
fabric. In such fabrics, TSE devices can be used to gather/scatter traffic from lower aggregate
rate devices into the multi-plane fabric (it is necessary that all such lower rate devices be able to
communicate with all planes of any fabric).
Where STS-12 loads are used in multi-plane fabrics, the TBS is used to distribute and gather
traffic across the multiple planes of the fabric. It is also possible to use an additional TSE to
perform this STS-12 grooming function for up to 32 STS-12 sources.
4.5
TSE Fabric Packaging
TSE fabrics can be packaged on PCBs in a variety of ways. The 777.6 MHz LVDS serial links are
used to communicate between the port cards and the fabric cards. With careful PCB, connector,
and back-plane design, no bus drivers will be required.
In such packaging of TSE fabrics, the concentration of all the TSE devices onto special fabric
cards, and the non-involvement of the TBS devices in the switching function (they only serialize
the TelecomBus and provide the fan-out to (possible) dual fabrics) permit all Automatic
Protection Switching (APS) switch setting changes to be concentrated on the fabric cards; general
connection establishment setup requires access to the connected TBS devices.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PM5380 | PMC-2010299 S/UNI-8x155 Telecom Standard Product Data Sheet [1.91 MB] |
| PM554 | Programmable Quad Supply Monitor with Adjustable Reset and Watchdog Timers; Package: SSOP; No of Pins: 16; Temperature Range: -40°C to +85°C |
| PM555 | 1 to 10 watt encapsulated power modules |
| PM556 | Precision Quad Supply Monitor in 6-Lead SOT-23; Package: SOT; No of Pins: 6; Temperature Range: 0°C to +70°C |
| PM560 | Precision Quad Supply Monitor in 6-Lead SOT-23; Package: SOT; No of Pins: 6; Temperature Range: 0°C to +70°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM5372BIP | 制造商:PMC-Sierra 功能描述: |
| PM5372-BI-P | 制造商:PMC-Sierra 功能描述: |
| PM5376HFI | 制造商:PMC-Sierra 功能描述: |
| PM5377 | 制造商:PMC 制造商全稱(chēng):PMC 功能描述:Single Chip 96-Port STS-1/STM-0 Cross-Connect |
| PM537CE | 制造商:ARTESYN 制造商全稱(chēng):Artesyn Technologies 功能描述:Single, dual and triple output 1 to 10.5 Watt AC/DC encapsulated modules |
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