PM5364 pmc-sierra, PM5364 Datasheet - Page 180

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Figure 39 SONET STS-1 Carrying Mix of VT1.5, VT2, VT3, and VT6
Thus far, the tributary placement figures have shown a simple STS-1 frame. However, the
Payload Processor subsystem receives STS-12 (STM-4) frames. Therefore, all of the previous
examples can co-exist within a given STS-12 frame. The only difference is that the number of
columns for the frame increases by a factor of 12 to 1,044. The actual column within the STS-
12 frame is determined by multiplying any illustrated column number minus 1 by 12 and adding
an offset value within the range 0 – 11. For example, the first column shown would take on the
values 1 through 12 ([1-1]x12 + N) corresponding to the Nth STS-1 frame within the STS-12
frame structure. Similarly, the last column would take on column values of 1,033 through 1,044
([87-1)*12 + N) of the STS-12 frame.
Transparent
This is generally used to conduct AU3/VC3/C3 frame configurations. Transparent payload is
not really a payload at all, but is a way of describing how to ‘keep the tributary path quiet’ by
disabling interrupts etc. It is used when the Bypass path is active or when the Tributary path is
converting an AU3/VC3/C3 to an AU4/VC4/TUG3/TU3/VC3/C3 frame.
When configured like this the tributary level interrupts and alarms can be disabled because they
have no relevance in a payload with no tributaries. The tributary path may accept frames in this
format, but can only produce valid data from this format by converting it to a an
AU4/VC4/TUG3/TU3/VC3 frame configuration. Otherwise the Bypass path is used to process
this type of traffic.
ROW 1
2
3
4
5
6
7
8
9
First of 3 columns occupied
by VT1.5 #1 of VT group #1
(column set is 2, 31, 60)
D10
A1
B1
D1
H1
B2
D4
D7
Z1
TRANSPORT
First of 4 columns occupied
by VT2 #1 of VT group #2
(column set is 3, 24, 46, 68)
OVERHEAD
D11
A2
E1
D2
H2
K1
D5
D8
Z2
First of 6 columns occupied
by VT3 #1 of VT group #3
(column set is 4, 18, 33, 47, 62, 76)
D12
C1
D3
H3
K2
D6
D9
E2
F1
First of 12 columns occupied
by VT6 #1 of VT group #4
(column set is 5, 12, 19, 26,
34, 41, 48, 55, 63, 70, 77, 84)
POH
B3
C2
G1
H4
J1
F2
Z3
Z4
Z5
SPE
COL
V3
2
V
T
S
P
E
V3
3
4
V3
5
V3
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
V3
6
VT1.5 #2
of VT group #1
(column set is 9, 38, 67)
VT6 #1 of VT group #7
(column set is 8, 15, 22, 29,
37, 44, 51, 58, 66, 73, 80, 87)
V3
7
V3
8
V3
9
• • • •
29
30
R
R
R
R
R
R
R
R
R
31
• • • •
Last of12 columns occupied
by VT6 #1 of VT group #7
(column set is 8, 15, 22, 29,
37, 44, 51, 58, 66, 73, 80, 87)
58
Released
59
R
R
R
R
R
R
R
R
R
60
180
• • • •
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