PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
bytes. The outgoing parity reflects the data on OD[7:0] (OD[15:8], OD[23:16],
OD[31:24]) at all times.
13.2 STS-1 Mode
An example of the placement of tributaries assumed in STS-1 mode is illustrated
in Figure 11. For simplicity, this figure shows the frame on the OD[7:0] bus when
the STM-1 (STS-3) interface mode is enabled. In this case the outgoing STS-1
SPEs are locked to an active offset of 522 with respect to the outgoing transport
envelope frame. This particular example assumes a snapshot of the first frame of
the tributary multiframe when the V1 bytes are present. This example illustrates a
VT structured STS-1 SPE where all VT groups are configured to carry VT1.5s.
Figure 11
- SONET STS-3 Carrying VT1.5 Within STS-1
COL
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
265 266 267 268 269 270
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
SPE SPE SPE SPE SPE SPE
ROW 1 A1 A1 A1 A2 A2 A2 C1 C1 C1 J1 J1 J1 V1 V1 V1
2
3
4
5
6
7
8
9
B1
D1
-
-
-
-
E1
D2
-
-
-
-
F1
D3
-
-
-
-
B3 B3 B3 SPE SPE SPE
C2
C2 C2 SPE SPE SPE
H1 H1 H1 H2 H2 H2 H3 H3 H3 G1 G1 G1 SPE SPE SPE
B2 B2 B2 K1
-
-
-
-
-
-
-
-
-
-
K2
D6
-
-
-
-
-
-
-
-
-
-
F2
• • • •
F2 F2 SPE SPE SPE
D4
D7
D10
Z1
-
-
-
-
-
-
-
-
D5
D8
D11
Z2
H4 H4 H4 SPE SPE SPE
Z3 Z3 Z3 SPE SPE SPE
D9
Z4
D12
E2
Z4 Z4 SPE SPE SPE
Z5 Z5 Z5 SPE SPE SPE
First of 3 columns occupied by
VT1.5 #1 of VT group #1 of
STS-1 #1 of an STS-3 stream
(column set is 13, 100, 187)
Last of 3 columns occupied by
VT1.5 #4 of VT group #7 of
STS-1 #3 of an STS-3 stream
(column set is 96, 183, 270)
13.3 AU3 Mode
An example of the placement of tributaries assumed in AU3 mode is illustrated in
Figure 12. For simplicity, this figure shows the frame on the OD[7:0] bus when
the STM-1 (STS-3) interface mode is enabled. In this case the outgoing VC3s
are locked to an active offset of 522 with respect to the outgoing transport
envelope frame. This particular example assumes a snapshot of the last frame of
the tributary multiframe when the V4 bytes are present. This example illustrates
the case where the VC3s carry TUG2s and all TUG2s are configured to carry
TU12s.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
378
PMC [ PMC-SIERRA, INC ]
