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RS8953SPBEPF

HDSL Channel Unit

Conexant Systems 

RS8953B/RS8953SPB

HDSL Channel Unit

1.0 HDSL Systems

1.1 HTU Applications

1.1.6 Subscriber Modem

Figure 1-7 shows an HDSL data modem application where a CPU processor

delivers PCM data directly to the RS8953B. Alternately, a multichannel

communications controller such as the Bt8071A can be used to manage the

transfer of data between the CPU and PCM channel through a local shared

memory.

Figure 1-7. Subscriber Modem (Terminal) System Block Diagram

Single Channel Payload

CPU

Serial

Port

RS8953B

Memory

CH1

CH2

CH3

Optional

CPU

Shared

Memory

Multichannel Payload

Bt8071A

32-Channel

HDLC Controller

RS8953B

PCM

CH1

CH2

CH3

Optional

N8953BDSB

Conexant

1-7

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