Product Description, Revision 4

TFRA84J13 Ultraframer

April 29, 2005

DS3/E3/DS2/E2/DS1/E1/DS0

Agere Systems Inc.

7

4 Application Diagrams

This section shows several typical Ultraframer applications. Figure 9-1 through Figure 9-3 depict system-level diagrams.

4.1 DS3/E3 to/from DS1/E1 Application

84 DS1s/48 E1s are input from LIUs, MUXed to DS3/E3, framed, and output to three DS3/E3 LIUs.

Similarly, three DS3s/E3s are input from the LIUs, deMUXed to the DS1/E1 level, and output as 84 DS1s/48 E1s.

The DS3/E3 will be received/transmitted by the device via the DS3DATAIN/OUT pins.

The DS1s/E1s will be received/transmitted by the device via the LINERX/TXDATA pins.

All three instances of the 28/21 channel M13/E13 MUXs are configured identically for M13/E13 mode.

All three instances of the 28/21 channel framers are configured identically for the transport mode of operation.

DS3 to/from E1 application is also possible.

Figure 4-1. x3 DS3s/E3s to/from 84 DS1s/48 E1s Configuration

ULTRAFRAMER

x3 DS3/E3

DS1/E1

84/48

DS1/E1 LIU

DS3/E3 LIU

CLK GEN

TSWC01622

REF CLK