cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 27

• Manufacturer Part Number: cx29503
• Description: Cx29503 Broadband Access Multiplexer Data Sheet
• Manufacturer: Mindspeed Technologies

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29503-DSH-002-B
Overview
1.0 Product Description
The CX29503 Broadband Access Multiplexer (CX29503) device is targeted for
network edge application systems, such as routers, access concentrators, and
multiservice switches, where systems terminate SONET/SDH or PDH traffic at the
DS3/E3/STS-1 rates or higher. Typically, the CX29503 family will be used either with
DS3/E3 Line Interface Units (LIU) connected to the serial line DS3/E3 input, or a
SONET/SDH demultiplexer connected to the parallel STS-1/TUG-3 line input.
signal rates down to the 1.5 or 2 Mbps levels. The demultiplexed streams may be
routed to a companion HDLC controller device via the Time Slot Bus (TSB) or serial
system side interfaces.
The CX29503 family supports standards-compliant network alarming and
performance monitoring at both SONET/Synchronous Digital Hierarchy (SDH) and
Plesiochronous Digital Hierarchy (PDH). Details of this support are provided in
appropriate framing sections in the data sheet.
The CX29503 device contains three identical, separate multiplexing/mapping slices
on a single die. The three slices have separate line and systems interfaces, but share
one common microprocessor interface. Each multiplexing/mapping slice can be
configured separately and independently from the others.
On the system side, the CX29503 supports three TSB interfaces. This device does not
support serial 1.5 and 2.0 Mbps interfaces on the system side due to pinout
limitations.
The CX29503 family can demultiplex and demap most commonly used tributary
Mindspeed Technologies™
Preliminary Information
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