Table 17: T1 Framing For Cas (Rbs) Support In A T1 Esf Multiframe - Alcatel-Lucent 7705 Service Manual

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Table 17: T1 Framing for CAS (RBS) Support in a T1 ESF Multiframe

Frame F Bit
Number
Bit Number
within
Multiframe
1 1
2 194
3 387
4 580
5 773
6 966
7 1159
8 1352
9 1545
10 1738
11 1931
12 2124
13 2317
14 2510
15 2703
16 2896
17 3089
18 3282
19 3475
20 3668
21 3861
22 4054
23 4247
24 4440
7705 SAR OS Services Guide
Assignments
FAS (1) DL (2)
– m
– –
– m
0 –
– m
– –
– m
0 –
– m
– –
– m
1 –
– m
– –
– m
0 –
– m
– –
– m
1 –
– m
– –
– m
1 –
Notes:
1. FAS = frame alignment signal (....001011.....)
2. DL = 4 kb/s data link (m represents message bits)
3. CRC = CRC-6 block check field (e1 to e6 represent check bits)
4. Only applicable for CAS
Bit Numbers in Each
Channel Timeslot
For
CRC (3)
Character
Signal (4)
– 1-8
e1 1-8
– 1-8
– 1-8
– 1-8
e2 1-7
– 1-8
– 1-8
– 1-8
e3 1-8
– 1-8
– 1-7
– 1-8
e4 1-8
– 1-8
– 1-8
– 1-8
e5 1-7
– 1-8
– 1-8
– 1-8
e6 1-8
– 1-8
– 1-7
VLL Services
Signaling
Channel
Designation
For
Signaling (4)
–
–
–
–
–
8 A
–
–
–
–
–
8 B
–
–
–
–
–
8 C
–
–
–
–
–
8 D
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