cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 105

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

4.1
29503-DSH-002-B
DS3/E3 Framer Clock and Data Options on the Line
Side
4.0 Clock Sources and Clock
The CX29503 operates in multiple timing domains, including SONET/SDH and PDH
domains. Depending on the line side interface mode of operation, different external
clocking sources are required. The CX29503 internally generates other internal clock
sources from the external sources, as required. After discussing the options that are
available for configuring the DS3/E3 and DS1/E1 framers, this section identifies
clock sources (both external and internal) and clock configurations required for each
supported mode.
The line side of each DS3/E3 framer interfaces to the DS3/E3 serial interface and to
the SI-Bus interface. The MUXes that control clock and data paths to the line side of
the DS3/E3 transmit and receive framers are shown in
the location of the M13 Mode MUX that controls the data path to the system side of
the DS3/E3 Tx framer.
Configurations
Mindspeed Technologies™
Preliminary Information
Figure
4-1. See
Figure 2-2
for
4
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1