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Figure 15-4. dslam/cable modem application – Rainbow Electronics DS3131 User Manual

Page 172

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DS3131

172 of 174

Figure 15-3

shows an application where three T3 or E3 framers are interfaced to a single DS3131. The

DS3131 is used to terminate both the payload of the T3 or E3 link as well as the overhead channels (like
the C bits in a T3 application). The local bus (if enabled) can be used to configure and monitor the T3/E3
framers.

Figure 15-3. Unchannelized T3 or E3 Application




















DS3131
BOSS

T3 or E3
Framer

PCI
Bus

Local Bus

T3/E3 Line

Payload

Overhead
(i.e. C-Bits)

T3 or E3
Framer

T3/E3 Line

Payload

Overhead
(i.e. C-Bits)

T3 or E3
Framer

T3/E3 Line

Payload

Overhead
(i.e. C-Bits)