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A. Connectors and Pin Assignments
DSL Ports and POTS Splitter Connectors
The 50-pin RJ21X Telco connector labeled DSL Ports 1–24 provides the 2-wire
loop interface from each DSL port to the demarcation point. (The Canadian
designation for this connector is CA21A.) The connector is labeled POTS 1–24.
Table A-1
and 50 are not used.
Table A-1. DSL Connector Pinouts
A-2
lists the pin assignments for each of these interfaces. Note that Pins 25
Connector Pins
DSL Port
(Ring, Tip)
1
1, 26
2
2, 27
3
3, 28
4
4, 29
5
5, 30
6
6, 31
7
7, 32
8
8, 33
9
9, 34
10
10, 35
11
11, 36
12
12, 37
13
13, 38
14
14, 39
15
15, 40
16
16, 41
17
17, 42
18
18, 43
19
19, 44
20
20, 45
21
21, 46
22
22, 47
23
23, 48
24
24, 49
October 2002
1
25
26
50
02-17151
4200-A2-GN20-10
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