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PM7347 Datasheet(PDF) 300 Page - PMC-Sierra, Inc

Part # PM7347
Description  SATURN USER NETWORK INTERFACE for J2/E3/T3
PDF  341 Pages
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Manufacturer  PMC [PMC-Sierra, Inc]
Direct Link  http://www.pmc-sierra.com
Logo PMC - PMC-Sierra, Inc

PM7347 Datasheet(HTML) 300 Page - PMC-Sierra, Inc

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S/UNI®-JET Data Sheet
Released
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
300
Document ID: PMC-1990267, Issue 3
Figure 39 Receive G.832 E3 Overhead
ROHCLK
ROHFP
ROHCLK
ROH
G.832 Frame Period
ROHFP
ROH
bit
1
EM byte
FA1 FA2 EM TR
MA
NR
GC
bit
2
bit
3
bit
4
bit
5
bit
6
bit
7
bit
8
bit
1
bit
2
bit
3
bit
4
bit
5
bit
6
bit
7
bit
8
bit
1
bit
2
bit
3
bit
4
bit
5
bit
6
bit
7
bit
8
FA2byte
FA1 byte
FA1FA2
54 cycles
bit
1
bit
2
The Receive G.832 E3 Overhead diagram (Figure 39) shows the extraction of the G.832 E3
overhead bits on the ROH output, along with overhead clock (ROHCLK), and frame position
indicator (ROHFP).
Figure 40 Receive G.751 E3 Overhead
ROHFP
ROHCLK
ROH
G.751 Frame Period
RAI Nat C11C21 C31 C41 C12 C22 C32
C13 C23 C33
J1
J2
J3
C42
C43
J4
RAI
RAI
...
...
30 cycles
J4
...
Justification service bits and tributary justification bits
output if PYLD&JUST bit equals 0
The Receive G.751 E3 Overhead diagram (Figure 40) shows the extraction of the G.751 E3
overhead bits on the ROH output, along with overhead clock (ROHCLK), and frame position
indicator (ROHFP). The justification indication bits (Cjk) along with the justification opportunity
bits (J1-J4) are extracted when they are treated as overhead (PYLD&JUST bit in the E3 FRMR
Maintenance Options register set to logic zero).



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