ds265188-port-t1-e1-j1-transc Maxim Integrated Products, Inc., ds265188-port-t1-e1-j1-transc Datasheet - Page 52

• Manufacturer Part Number: ds265188-port-t1-e1-j1-transc
• Description: Ds26518 8-port T1/e1/j1 Transceiver
• Manufacturer: Maxim Integrated Products, Inc.

9.9.2
The E1 framing consists of FAS, NFAS detection as shown in
Table 9-14. E1 FAS/NFAS Framing
FRAME
C = C bits are the CRC-4 remainder; A = alarm bits; Sa = bits for data link.
CRC-4
10
11
12
13
14
15
#
0
1
2
3
4
5
6
7
8
9
E1 Framing
NFAS
NFAS
NFAS
NFAS
NFAS
NFAS
NFAS
NFAS
TYPE
FAS
FAS
FAS
FAS
FAS
FAS
FAS
FAS
C1
C2
C3
C4
C1
C2
C3
C4
E1
E2
1
0
0
1
0
1
1
2
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A
A
A
A
A
A
A
A
3
0
0
0
0
0
0
0
0
52 of 313
Sa4
Sa4
Sa4
Sa4
Sa4
Sa4
Sa4
Sa4
4
1
1
1
1
1
1
1
1
Table
9-14.
Sa5
Sa5
Sa5
Sa5
Sa5
Sa5
Sa5
Sa5
5
1
1
1
1
1
1
1
1
DS26518 8-Port T1/E1/J1 Transceiver
Sa6
Sa6
Sa6
Sa6
Sa6
Sa6
Sa6
Sa6
6
0
0
0
0
0
0
0
0
Sa7
Sa7
Sa7
Sa7
Sa7
Sa7
Sa7
Sa7
7
1
1
1
1
1
1
1
1
Sa8
Sa8
Sa8
Sa8
Sa8
Sa8
Sa8
Sa8
8
1
1
1
1
1
1
1
1