PM4328 View Datasheet(PDF) - PMC-Sierra

Part Name

Description

MFG CO.

PM4328

HIGH DENSITY T1/E1 FRAMER WITH INTEGRATED M13 MULTIPLEXER

PMC-Sierra

'PM4328' PDF : 250 Pages View PDF

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STANDARD PRODUCT
DATASHEET
PMC-2011596
ISSUE 1
Figure 39: DS3 Line Loopback Diagram
PM4328 TECT3
HIGH DENSITY T1/E1 FRAMER
AND M13 MULTIPLEXER
RCLK
RPOS/
RDAT
RNEG/
RLCV
DS3
FRMR
TCLK
TPOS/
TDAT
TNEG/
TMFP
DS3
TRAN
DS2 Demultiplex Loopback
MX23
F MX12 #7
FRMFRMRFMRMRFMXRMRM1X21MX2#1X32#142#5#6
F RFRMRMRMX1X212#1#2
RM
MR
R
DS2 Demultiplex Loopbacks allow each of the seven demultiplexed DS2 streams
to be looped back into the MX23 and multiplexed up into the transmit DS3
stream. This overrides the tributary DS2 streams coming from the MX12s. The
DS2 loopback mode is shown diagrammatically in Figure 40 and is enabled via
the MX23 Loopback Activate register.
Figure 40: DS2 Loopback Diagram
RCLK
RPOS/
RDAT
RNEG/
RLCV
DS3
FRMR
DS2 Tributary Loopback path
TCLK
TPOS/
TDAT
TNEG/
TMFP
DS3
TRAN
MX23
Optional
DEMUX AIS
Insertion
F MX12 #7
FRMFRMRFMRMRFMXRMRM1X2M1X2#1X32#142#5#6
FRRMFRMRMRMX1X212#1#2
MR
R
.
PROPRIETARY AND CONFIDENTIAL
156

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