參數(shù)資料
型號： MT9075B-1
廠商： Mitel Networks Corporation
英文描述： E1 Single Chip Transceiver
中文描述： 素E1單芯片收發(fā)器
文件頁數(shù)： 22/78頁
文件大?。?/td> 1008K
代理商： MT9075B-1
MT9075A
Preliminary Information
4-150
Figure 10 - Synchronization State Diagram
>914 CRC errors
in one second
NO
3 consecutive
incorrect frame
alignment
signals
YES
CRC-to-non-CRC interworking. Maintain primary
basic frame alignment. Continue to send CRC-4
data, but stop CRC processing. E-bits set to ‘0’.
Indicate CRC-to-non-CRC operation. Note 7.
Search for primary basic frame
alignment signal RAI=1, Es=0.
Out of synchronization
Verify Bit 2 of non-frame
alignment signal.
Parallel search for new basic frame
alignment signal.
Notes 6 & 7.
YES
YES
400 msec timer expired
NO
CRC multiframe
alignment
* only if CRC-4 synchronization is selected and automatic CRC-4
interworking is de-selected.
** only if automatic CRC-4 interworking is selected.
8 msec.
timer expired**
CRC-to-CRC interworking. Re-align to new basic
frame alignment. Start CRC-4 processing. E-bits set
as per G.704 and I.431. Indicate CRC synchronization
achieved.
Notes 7& 8.
Signalling multi-frame alignment
Primary basic frame synchronization
acquired. Enable traffic RAI=0, E’s=0. Start
loss of primary basic frame alignment
checking. Notes 7 & 8.
YES
CRC-4 multi-frame alignment
YES
Verify second occurrence of
frame alignment signal.
Start 8 msec timer.
Note 7.
Multiframe synchronization
acquired as per G.732.
Note 7.
Find two CRC frame
alignment signals.
Note 7.
Check for two consecutive errored
multiframe alignment signals.
Notes 7 & 8.
Start 400 msec timer.
Note 7.
Search for multiframe
alignment signal.
Note 7.
NO
NO
NO
YES
Basic frame
alignment acquired
No CRC
multiframe
alignment.
No CRC
multiframe alignment.
8 msec. timer expired*
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MT9075BP 制造商:Microsemi Corporation 功能描述:
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