tfra08c13 ETC-unknow, tfra08c13 Datasheet - Page 55

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

Preliminary Data Sheet
October 2000
Lucent Technologies Inc.
Lucent Technologies Inc.
Frame Formats
CEPT Time Slot 16 Multiframe Structure
The TFRA08C13 supports two CEPT signaling modes: channel associated signaling (CAS) or per-channel signal-
ing (PCS0 and PCS1).
Channel Associated Signaling (CAS)
The channel associated signaling (CAS) mode utilizes time slot 16 of the FAS and NOT FAS frames. The CAS for-
mat is a multiframe consisting of 16 frames where frame 0 of the multiframe contains the multiframe alignment pat-
tern of four zeros in bits 1 through 4. Table 21 illustrates the CAS multiframe of time slot 16. The TFRA08C13 can
be programmed to force the transmitted line CAS multiframe alignment pattern to be transmitted in the FAS frame
by selecting the PCS0 option or in the NOT FAS frame by selecting the PCS1 option. Alignment of the transmitted
line CAS multiframe to the CRC-4 multiframe is arbitrary.
Table 21. ITU CEPT Time Slot 16 Channel Associated Signaling Multiframe Structure
Notes:
Frame 0 bits 1—4 define the time slot 16 multiframe alignment.
X0—X2 = time slot 16 spare bits defined in FRM_PR41 bit 0—bit 2.
Y
M
Time Slot 16
= yellow alarm, time slot 16 remote multiframe alarm (RMA) bit (1 = alarm condition).
Associated
Multiframe
Signaling
Channel
Number
Frame
(continued)
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1
0
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
2
0
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
3
0
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
4
0
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
Bit
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
X
5
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
Y
TFRA08C13 OCTAL T1/E1 Framer
6
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
M
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
X
7
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
X
8
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
2
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