tfra08c13 ETC-unknow, tfra08c13 Datasheet - Page 38

• Manufacturer Part Number: tfra08c13
• Description: Tfra08c13 Octal T1/e1 Framer
• Manufacturer: ETC-unknow

TFRA08C13 OCTAL T1/E1 Framer
Frame Formats
External TFDL Source. Data may be inserted and extracted from the SLC -96 data link from either the external
facility data link (TFDL) ports or the SLC -96 data stack. Source selection is controlled by FRM_PR21 bit 6 and
FRM_PR29 bit 5—bit 7.
The transmit framer synchronizes on TFDL = 000111000111 . . . and forces a superframe boundary based on this
pattern. When sourcing an external bit stream, it is the system’s responsibility to ensure that TFDL data contain the
pattern of 000111000111 . . . . The D pattern sequence is shown in Table 10. Table 11 shows the encoding for the
line switch field.
Table 10. SLC -96 Data Link Block Format
38
D
Data Link Block
D
24
1
(rightmost bit)
(leftmost bit)
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
10
11
12
13
14
15
16
17
18
19
20
21
22
23
2
3
4
5
6
7
8
9
(continued)
C
C
M
M
M
C
C
C
C
C
C
C
C
C
10
11
S
S
S
S
1
2
3
1
2
3
4
5
6
7
8
9
—concentrator bit
—concentrator bit
—concentrator bit
—concentrator bit
—concentrator bit
—concentrator bit
—concentrator bit
—concentrator bit
—concentrator bit
—maintenance bit
—maintenance bit
—maintenance bit
1
2
3
4
Bit Definition
—concentrator bit
—concentrator bit
A1—alarm bit
A2—alarm bit
—line-switch bit
—line-switch bit
—line-switch bit
—line-switch bit
Spoiler bit 1
Spoiler bit 2
Spoiler bit 3
Spoiler bit 4
Defined in Table 11
Defined in Table 11
Defined in Table 11
Defined in Table 11
Bit Value
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0
1
0
1
Preliminary Data Sheet
Lucent Technologies Inc.
Lucent Technologies Inc.
October 2000