Datasheet

DS3112
130 of 133
Figure 14-7. E2 Frame Structure
Set 1
Bit 1 Bit 212
FAS (1111010000) RAI Sn b
11
b
21
b
31
b
41
b
12
...bits from the tributaries...
Set 2
Bit 1 Bit 212
c
11
c
21
c
31
c
41
...bits from the tributaries...
Set 3
Bit 1 Bit 212
c
12
c
22
c
32
c
42
...bits from the tributaries...
Set 4
Bit 1 Bit 212
c
13
c
23
c
33
c
43
s
1
s
2
s
3
s
4
...bits from the tributaries...
NOTE 1: BIT 1 OF SET 1 IS TRANSMITTED FIRST.
NOTE 2: BJI TRIBUTARY BITS J = TRIBUTARY NUMBER I = BIT NUMBER
NOTE 3: CJI JUSTIFICATION CONTROL BITS J = TRIBUTARY NUMBER I = CONTROL BIT NUMBER
NOTE 4: SJ STUFFING BITS J = TRIBUTARY NUMBER
Figure 14-8. E3 Frame Structure
Set 1
Bit 1 Bit 384
FAS (1111010000) RAI Sn b
11
b
21
b
31
b
41
b
12
...bits from the tributaries...
Set 2
Bit 1 Bit 384
c
11
c
21
c
31
c
41
...bits from the tributaries...
Set 3
Bit 1 Bit 384
c
12
c
22
c
32
c
42
...bits from the tributaries...
Set 4
Bit 1 Bit 384
c
12
c
22
c
32
c
42
s
1
s
2
s
3
s
4
...bits from the tributaries...
NOTE 1: BIT 1 OF SET 1 IS TRANSMITTED FIRST.
NOTE 2: BJI TRIBUTARY BITS J = TRIBUTARY NUMBER I = BIT NUMBER
NOTE 3: CJI JUSTIFICATION CONTROL BITS J = TRIBUTARY NUMBER I = CONTROL STUFFING BIT NUMBER
NOTE 4: SJ STUFFING BITS J = TRIBUTARY NUMBER