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參數(shù)資料
| 型號(hào)： | TMUX03155 |
| 廠商： | Lineage Power |
| 英文描述： | STS-3/STM-1 (AU-4) Multiplexer/Demultiplexer(STS-3/STM-1 (AU-4)多路復(fù)用器/多路分解器) |
| 中文描述： | STS-3/STM-1（非盟- 4）多路復(fù)用器/多路解復(fù)用器（STS-3/STM-1（非盟- 4）多路復(fù)用器/多路分解器） |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 261K |
| 代理商： | TMUX03155 |
Product Brief
February 1998
TMUX03155 STS-3/STM-1 (AU-4) Multiplexer/Demultiplexer
9
Lucent Technologies Inc.
Receive Direction Overview
(continued)
STS-1/AU-3 Output Byte Control
(continued)
Table 6 shows the specific control allowed for each overhead byte.
1. Error insert.
2. Input pass or default value.
3. Software overwrite.
4. Copy of the selected byte from the incoming STM-1 (AU-4) frame; otherwise, the bytes pass without being changed
(POH can start anywhere within the SPE).
5. Hardware overwrite.
Note: X = don’t care (payload).
B1 and B2 Generate
The B1 and B2 values of the outgoing STS-1/AU-3 signal are calculated. An error byte can also be forced into the
B1 and B2 values on a per STS-1/AU-3 basis.
STS-1/AU-3 Output Scramble
The device allows scrambling of the output signals on a per-output basis.
Output Selection Logic
The demultiplexed signals can be routed to any output port or can be multicast to more than one port under soft-
ware control.
Output Data Formatter
The device outputs one clock at 19.44 MHz, one J0 time signal, an 8-bit data bus, and an odd/even parity bit. The
bus can be shared with up to three other devices. Each device determines its time slot using the J0 time signal.
The byte coincident with the J0 time sync signal is always available for device number 1; subsequent bytes are
available for device 2, device 3, and then device 1 again. The sense of the 19.44 MHz output clock can be inverted
under user control.
Table 6. STS-1/AU-3 Format and Overhead Control Summary
Transport Overhead
Payload
Col. 1
Col. 2
Col. 3
Col. 4
Col. 5—90
Row 1
Row 2
Row 3
Row 4
Row 5
Row 6
Row 7
Row 8
Row 9
A1
B1
1
D1
2
H1
1, 4
B2
1
D4
2
D7
2
D10
2
S1
2
A2
1
E1
2
D2
2
H2
1, 4
K1
1, 3
D5
2
D8
2
D11
2
M0
1, 5
J0
3
F1
2, 3
D3
2
H3
4
K2
1, 3
D6
2
D9
2
D12
2
E2
2
J1
4
B3
C2
4
G1
4
F2
4
H4
4
Z3
4
Z4
Z5
4
X
X
X
X
X
X
X
X
X
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