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B. Connector Pin Assignments
B-2
March 2005
8335-A2-GB20-A0
Model 8620 BLC Telco Connector Pinouts
The three Telco 50-pin receptacles on the rear of the chassis (labeled for Slots 1,
2, 3) provide the 2-wire loop interface from each DSL port to either the POTS
splitter card 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.
CONN #
for Slots 1–3
CONN PINS
(Tip, Ring)
CONN #
for Slots 1–3
CONN PINS
(Tip, Ring)
Port 1
1, 26
Port 14
14, 39
Port 2
2, 27
Port 15
15, 40
Port 3
3, 28
Port 16
16, 41
Port 4
4, 29
Port 17
17, 42
Port 5
5, 30
Port 18
18, 43
Port 6
6, 31
Port 19
19, 44
Port 7
7, 32
Port 20
20, 45
Port 8
8, 33
Port 21
21, 46
Port 9
9, 34
Port 22
22, 47
Port 10
10, 35
Port 23
23, 48
Port 11
11, 36
Port 24
24, 49
Port 12
12, 37
Port 25
Not used
Port 13
13, 38
26
97-15323
50
1
25