STANDARD PRODUCT
DATASHEET
PMC-1981125
ISSUE 7
PM8315 TEMUX
HIGH DENSITY T1/E1 FRAMER WITH
INTEGRATED VT/TU MAPPER AND M13 MUX
Figure 56
- Transmit Bipolar DS3 Stream
TICLK
TCLK
TPOS
TNEG
1
1
0
0
0
1
0
The Transmit Bipolar DS3 Stream diagram (Figure 56) illustrates the generation
of a bipolar DS3 stream. The B3ZS encoded DS3 stream is present on TPOS
and TNEG. These outputs, along with the transmit clock, TCLK, can be directly
connected to a DS3 line interface unit. Note that TCLK is a flow through version
of TICLK; a variable propagation delay exists between these two signals.
Figure 57
- Transmit Unipolar DS3 Stream
TICLK
TCLK
TDAT
TMFP
The Transmit Unipolar DS3 Stream diagram (Figure 57) illustrates the unipolar
DS3 stream generation. The TMFP output marks the M-frame boundary, X1 bit,
in the transmit stream. Note that TCLK is a flow through version of TICLK; a
variable propagation delay exists between these two signals.
X1
Nib 1
Bit 4
Nib 21
Bit 1
X2
Nib 22
Bit 4
Nib 1190
Bit 1
X1
Nib 1
Bit 4
PROPRIETARY AND CONFIDENTIAL
250
PMC [ PMC-SIERRA, INC ]
