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Cable installation 31
Model 3196RC T-DAC User Manual 2 • Hardware installation
Connecting the iDSL ports
The remote (CPE) iDSL modems are connected to the T-DAC via the RJ-21X cable (see figure 12).
Figure 12. RJ-21X connector
1. Connect the RJ-21X connector of the cable into the 50-pin RJ-21X receptacle on the rear of the 3196RC.
2. The other end of the cable has 25 non-terminated twisted-pairs for connection to punch-down blocks.
Only 16 of the 25 pairs (see table 5) will be used since there are 16 iDSL modem connections, each requir-
ing one twisted pair. Select the twisted-pairs which will be used for active iDSL modem connections and
terminate each pair on the punch-down blocks.
Table 5. Band Marked Color Code
DSL Port 50 Pin Positions Wire Color Code
Port 1
1
26
Blue/White
White/Blue
Port 2
2
27
Orange/White
White/Orange
Port 3
3
28
Green/White
White/Green
Port 4
4
29
Brown/White
White/Brown
Port 5
5
30
Slate/White
White/Slate
Port 6
6
31
Blue/Red
Red/Blue
Port 7
7
32
Orange/Red
Red/Orange
Port 8
8
33
Green/Red
Red/Green
Port 9
9
34
Brown/Red
Red/Brown
Port 10
10
35
Slate/Red
Red/Slate
Port 11
11
36
Blue/Black
Black/Blue
50-pin TELCO Male
Pin 1
26
25
50