Alcatel-Lucent 7705 - Replacing an Adapter Card

Circuit Emulation VLL (Cpipe) Services
Page 144 7705 SAR OS Services Guide
Figure 20: E1 Framing for CAS Support in an E1 Multiframe
Alignment bits
S S S
S
0
1
1
A
A
0
0 1 1
1 0
Remote alarm indicator
CRC-4 error signaling bits
E
CRC-4 bits
0000 A
0 1 1
C
1
C
1
S S S S S
1
a
1
b
1
c
1
d
16
a
16
b
16
c
16
d
0
1 A0
0 1 1 0 1 1
C
2
3
4
2
C
22
S S S S S
3
a
3
b
3
c
3
d
18
a
18
b
18
c
2
a
2
b
2
c
2
d
17
a
17
b
17
c
4
a
4
b
4
c
4
d
19
a
19
b
19
c
6
a
6
b
6
c
6
d
21
a
21
b
21
c
17
d
16
d
18
d
0
1 A0
0 1 1 0 1 1
C
3
S S S S S
5
a
5
b
5
c
5
d
20
a
20
b
20
c
20
d
0
1 A0
0 1 1 0 1 1
C
4
S S S S S
7
a
7
b
7
c
7
d
22
a
22
b
22
c
22
d
21
d
0
1 A0
0 1 1 0 1 1
C
1
S S S S S
9
a
9
b
9
c
9
d
24
a
24
b
24
c
24
d
8
a
8
b
8
c
8
d
23
a
23
b
23
c
23
d
0
1 A0
0 1 1 0 1 1
C
2
3
4
2
S S S S S
11
a
11
b
11
c
11
d
26
a
26
b
26
c
10
a
10
b
10
c
10
d
25
a
25
b
25
c
12
a
12
b
12
c
12
d
27
a
27
b
27
c
14
a
14
b
14
c
14
d
29
a
29
b
29
c
25
d
27
d
26
d
0
1 AE
0 1 1 0 1 1
C
3
S S S S S
13
a
13
b
13
c
13
d
28
a
28
b
28
c
28
d
0
1 AE
0 1 1 0 1 1
C
4
S S S S S
15
a
15
b
15
c
15
d
30
a
30
b
30
c
30
d
29
d
Frame 0
Timeslot 1 Timeslot 17216...
...
18 32...
Channel 1 15... 16 30...
1
2
3
4
3
C
3
5
6
4
C
4
Channel CAS bits
125 ms
Submultiframe 1
Submultiframe 2
2 ms
Channel bytes
Spare bits
7
8
9
10
11
12
13
14
15
1
a
1
b
1
c
1
d
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