
2Giga Ethernet Managed 4 Band VDSL IP DSLAM USER’S MANUAL Ver. A.4
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Appendix A: RJ-21 Telco ports distribution
RJ-21 Pin and VDSL port contrast list
VDSL 50 Pin RJ-21 Cable Connector List
Cable Characteristic = 24 AWG twist wire
1
24 & 49
2
23 & 48
3
22 & 47
4
21 & 46
5
20 & 45
6
19 & 44
7
18 & 43
8
17 & 42
9
16 & 41
10
15 & 40
11
14 & 39
12
13 & 38
13
12 & 37
14
11 & 36
15
10 & 35
16
9 & 34
17
8 & 33
18
7 & 32
19
6 & 31
20
5 & 30
21
4 & 29
22
3 & 28
23
2 & 27
24
1 & 26
Note: RJ-21 Pin25 & 50 are not used