10
September
2004
TIM1-A2-GZ40-00
RJ21 Port Pinouts
Table 1, A Connectors
, shows the pin assignments for RJ21 A connectors
(12000E bottom row, 4000E left side, 12000 and 4000). Pins 13 and 38 are not
used.
Table 2, B Connectors
, shows the pin assignments for the RJ21 B connectors
(12000E top row and 4000E right side). Pins 13 and 38 are not used.
Table 1. A Connectors
TIM1500 T1 PORTS
1
2
3
4
5
6
7
8
9
10
11
12
RJ21
PINS
TX
Ring
14
15
16
17
18
19
20
21
22
23
24
25
Tip
39
40
41
42
43
44
45
46
47
48
49
50
RX
Ring
1
2
3
4
5
6
7
8
9
10
11
12
Tip
26
27
28
29
30
31
32
33
34
35
36
37
Table 2. B Connectors
TIM1500 T1 PORTS
13
14
15
16
17
18
19
20
21
22
23
24
RJ21
PINS
TX
Ring
14
15
16
17
18
19
20
21
22
23
24
25
Tip
39
40
41
42
43
44
45
46
47
48
49
50
RX
Ring
1
2
3
4
5
6
7
8
9
10
11
12
Tip
26
27
28
29
30
31
32
33
34
35
36
37
RJ21 Cable
RJ21 Receptacle
