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T1/E1 Port Pinout
Board
Connector
PORTS
16-31
13
Line 18
Line 19
Line 20
Line 21
Line 22
Line 23
Line 24
Line 25
Line 26
Cisco ASR 907 Router Hardware Installation Guide
128
Line
Board
Signal
PIns
Name
Line 16
48
T X _ R I N G _ P 1 6
14
TX_TIP_P16
Line 17
47
T X _ R I N G _ P 1 7
TX_TIP_P17
13
44
T X _ R I N G _ P 1 8
35
10
TX_TIP_P18
10
43
T X _ R I N G _ P 1 9
34
9
TX_TIP_P19
9
50
T X _ R I N G _ P 2 0
41
16
TX_TIP_P20
16
49
T X _ R I N G _ P 2 1
40
15
TX_TIP_P21
15
46
T X _ R I N G _ P 2 2
37
12
TX_TIP_P22
12
45
T X _ R I N G _ P 2 3
36
11
TX_TIP_P23
11
40
T X _ R I N G _ P 2 4
31
6
TX_TIP_P24
6
39
T X _ R I N G _ P 2 5
30
5
TX_TIP_P25
5
36
T X _ R I N G _ P 2 6
27
2
TX_TIP_P26
2
Telco TX
Jack Pin
Board
Pins
39
1
66
14
2
32
38
1
65
2
31
R X _ T I P _ P 1 7
1
62
R X _ R I N G _ P 1 8
2
28
R X _ T I P _ P 1 8
1
61
R X _ R I N G _ P 1 9
2
27
R X _ T I P _ P 1 9
1
68
R X _ R I N G _ P 2 0
2
34
R X _ T I P _ P 2 0
1
67
R X _ R I N G _ P 2 1
2
33
R X _ T I P _ P 2 1
1
64
R X _ R I N G _ P 2 2
2
30
R X _ T I P _ P 2 2
1
63
R X _ R I N G _ P 2 3
2
29
R X _ T I P _ P 2 3
1
58
R X _ R I N G _ P 2 4
2
24
R X _ T I P _ P 2 4
1
57
R X _ R I N G _ P 2 5
2
23
R X _ T I P _ P 2 5
1
54
R X _ R I N G _ P 2 6
2
20
R X _ T I P _ P 2 6
Troubleshooting
Signal
Telco RX
Jack Pin
Name
R X _ R I N G _ P 1 6
39
4
R X _ T I P _ P 1 6
14
5
R X _ R I N G _ P 1 7
38
4
13
5
35
4
10
5
34
4
9
5
41
4
16
5
40
4
15
5
37
4
12
5
36
4
11
5
31
4
6
5
30
4
5
5
27
4
2
5
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