XRT86L30
SINGLE T1/E1/J1 FRAMER/LIU COMBO
REV. 1.0.1
14.8
SLC-96 Format (SLC-96)
SLC framing mode allows synchronization to the SLC®96 data link pattern. This pattern described in Bellcore
TR-TSY-000008, contains both signaling information and a framing pattern that overwrites the Fs bit of the SF
framer pattern. See Table 181.
TABLE 181: SLC®96 FS BIT CONTENTS
F
RAME
2
#
FS BIT
F
RAME
26
28
30
32
34
36
38
40
42
44
46
48
#
FS BIT
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
0
F
RAME
50
52
54
56
58
60
62
64
66
68
70
72
#
FS BIT
0
0
0
4
M1
M2
M3
A1
A2
S1
S2
S3
S4
1
6
1
8
1
10
12
14
16
18
20
22
24
1
0
0
0
1
1
1
C1
1
0
NOTES:
1. The SLC®96 frame format is similar to that of SF as shown in Table 178 with the exceptions
shown in this table.
2. C1 to C11 are concentrator bit fields.
3. M1 to M3 are Maintenance bit fields.
4. A1 and A2 are alarm bit fields.
5. S1 to S4 are line switch bit fields.
6. The Fs bits in frames 46, 48 and 70 are spoiler bit switch are used to protect against false
multiframing.
261
EXAR [ EXAR CORPORATION ]
