8900-A2-GB20-50
August 2005
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Connector Pin Assignments
8620 and 8820 Telco Connector Pinouts
For 24-port line cards, the Telco 50-pin connectors
on the back of the 8620 BLC chassis (numbered
1–3) and the 8820 BLC chassis (numbered 1–18)
provide the 2-wire loop interface from each DSL
port to either the POTS splitter shelf or, if the loop
is not being shared with POTS, then to the Main
Distribution Frame (MDF). The following table lists
the pin assignments for each of these interfaces.
Pins 25 and 50 are not used.
Port
Connector Pins
(Ring, Tip)
Port
Connector Pins
(Ring, Tip)
Port 1
1, 26
Port 13
13, 38
Port 2
2, 27
Port 14
14, 39
Port 3
3, 28
Port 15
15, 40
Port 4
4, 29
Port 16
16, 41
Port 5
5, 30
Port 17
17, 42
Port 6
6, 31
Port 18
18, 43
Port 7
7, 32
Port 19
19, 44
Port 8
8, 33
Port 20
20, 45
Port 9
9, 34
Port 21
21, 46
Port 10
10, 35
Port 22
22, 47
Port 11
11, 36
Port 23
23, 48
Port 12
12, 37
Port 24
24, 49
00-16714
Pin
Number 50
Pin
Number 1
