Figure 20: E1 Framing For Cas Support In An E1 Multiframe - Alcatel-Lucent 7705 Service Manual

Circuit Emulation VLL (Cpipe) Services
Frame 0 C
1
1 0
2 C
2 2
3
0
4 C
3 3
5 0
6
C
4 4
7
0
8 C
1
9
0
10
C
2 2
11
0
12
C
3 3
13
E
14
C
4 4
15
E
1
C
1
Page 144

Figure 20: E1 Framing for CAS Support in an E1 Multiframe

Timeslot 1 2
0 0 1 1 0 1 1
1 A S S S S S
0 0 1 1 0 1 1
1 A S S S S S
0 0 1 1 0 1 1
1 A S S S S S
0 0 1 1 0 1 1
1 A S S S S S
0 0 1 1 0 1 1
1 A S S S S S
0 0 1 1 0 1 1
1 A S S S S S
0 0 1 1 0 1 1
1 A S S S S S
0 0 1 1 0 1 1
1 A S S S S S
Channel 1
...
1 0 Alignment bits
A Remote alarm indicator
E CRC-4 error signaling bits
C C C
CRC-4 bits
2 2 3 3 4 4
... 16 Timeslot 17
0 0 0 0 S A
a b c d a b
1 1 1 1 16 16
a b c d a b
2 2 2 2 17 17
a b c d a b
3 3 3 3 18 18
a b c d a b
4 4 4 4 19 19
a b c d a b
5 5 5 5 20 20
a b c d a b
6 6 6 6 21 21
a b c d a b
7 7 7 7 22 22
a b c d a b
8 8 8 8 23 23
a b c d a b
9 9 9 9 24 24
a b c d a b
10 10 10 10 25 25
a b c d a b
11 11 11 11 26 26
a b c d a b
12 12 12 12 27 27
a b c d a b
13 13 13 13 28 28
a b c d a b
14 14 14 14 29 29
a b c d a b
15 15 15 15 30 30
... 15
a b c
1 1 1
7705 SAR OS Services Guide
18 ... 32
125 ms
S S
c d
16 16
c d
17 17
c d
18 18
Submultiframe 1
c d
19 16
c d
20 20
c d
21 21
c d
22 22
c d
23 23
c d
24 24
c d
25 25
c d
26 26
Submultiframe 2
c d
27 27
c d
28 28
c d
29 29
c d
30 30
2 ms
16 ... 30
d Channel CAS bits
1
Channel bytes
S Spare bits
19966