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PM8610 датащи(PDF) 21 Page - PMC-Sierra, Inc |
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PM8610 датащи(HTML) 21 Page - PMC-Sierra, Inc |
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21 / 338 page ![]() SBS Telecom Standard Product Data Sheet Preliminary Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use 21 Document ID: PMC-2000168, Issue 3 4 Application Examples Figure 1 and Figure 2 show a PM8610 SBI336 Bus Serializer (SBS) connected to a TelecomBus to implement a T1 or E1 Add/Drop function. When connected to a TelecomBus, the SBS and the PM8620 or PM8621 Narrowband Switching Element (NSE) implements a T1/E1 Memory:Space:Memory switch. The SBS requires all path pointer justifications to be translated into tributary pointer movements so that J1 is fixed to the location following C1 or H3. In both examples, J1 alignment is performed with the TUPP-622. Switching within the SBS and NSE is done using Transparent Virtual Tributary, TVT, mapping across the serial SBI336S LVDS links. Figure 1 OC-48 T1/E1 ADM (Individually Drop/Add any T1/E1 in STS-48) SPECTRA- 2488 4 X TUPP- 622 4 X SBS NSE 4 X SBS 4 X TUPP- 622 SPECTRA- 2488 SBS 1 X TEMAP -84 11 X OCTLIU Figure 2 OC-48 T1/E1 ADM (Drop/Add up to STS-48 at STS-1 Granularity) SPECTRA- 2488 4 X SBS 4 X TUPP- 622 SPECTRA- 2488 TBS TBS TBS NSE SBS SBS SBS SBS TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 TEMUX84 |
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