PM8610 datasheet(21/338 Pages) PMC

21 / 338 page

SBS Telecom Standard Product Data Sheet

Preliminary

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

Document ID: PMC-2000168, Issue 3

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

NSE

SBS

TEMUX84

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