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PEB2256HT Datasheet(PDF) 144 Page - Infineon Technologies AG

Part # PEB2256HT
Description  E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications
PDF  490 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

PEB2256HT Datasheet(HTML) 144 Page - Infineon Technologies AG

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FALC56 V1.2
PEB 2256
Functional Description T1/J1
Data Sheet
144
2002-08-27
above for the “combined” mode.
Two errors within 4/5/6 multiframing bits lead to the asynchronous state only for the
multiframing. Loss of multiframe alignment is reported by bit FRS0.LMFA. The state
of terminal framing is not influenced.
Now, the resynchronization procedure includes only the search for multiframe
alignment. Multiframe synchronization has been regained after two consecutive
correct multiframe patterns have been received.
5.2.6
Extended Superframe (F24 or ESF Format, T1/J1)
The use of the first bit of each frame for the multiframe alignment word, the data link bits,
and the CRC bits is shown in Table 35 on page 144.
Table 35
Extended Superframe Structure (F24, ESF; T1/J1)
Multiframe
Frame Number
F-Bits
Signaling
Channel
Designation
Multiframe
Bit Number
Assignments
FAS
DL
CRC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
0
193
386
579
772
965
1158
1351
1544
1737
1930
2123
2316
2509
2702
2895
3088
3231
3474
3667
3860
4053
4246
4439
–
–
–
0
–
–
–
0
–
–
–
1
–
–
–
0
–
–
–
1
–
–
–
1
m
–
m
–
m
–
m
–
m
–
m
–
m
–
m
–
m
–
m
–
m
–
m
–
–
e
1
–
–
–
e
2
–
–
–
e
3
–
–
–
e
4
–
–
–
e
5
–
–
–
e
6
–
–
A
B
C
D



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