SMC Networks BARRICADE SMC7901WBRA2 B1 - Manual (Page 142)

A PPENDIX C | Cables and Pinouts
RJ-11 Ports
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RJ-11 P ORTS
Standard telephone RJ-11 connectors and cabling can be found in several
common wiring patterns. These six-pin connectors can accommodate up to
three wire-pairs (three telephone lines), but usually only one or two pairs
of conductor pins and wires are implemented.
The RJ-11 ports on the side of the Gateway contain two wire-pairs, an
inner pair (pins 3 and 4) and outer pair (pins 2 and 5). On the LINE port,
the inner wire-pair carries both voice and digital data. On the PHONE port,
the inner wire-pair carries voice only.
The outer wire-pair is only connected if there is a second telephone line,
and carries voice only.
Figure 85: RJ-11 Wire Pairs
Table 5: RJ-11 Port Pinouts
Pin Signal Name Wire Color
1 Not used
2 Line 2 Tip Black or White/Orange
3 Line 1 Ring Red or Blue/White
4 Line 1 Tip Green or White/Blue
5 Line 2 Ring Yellow or Orange/White
6 Not used
1 2 3 4 5 6
Blue/White White/Blue
R1 T1
1 2 3 4 5 6
Red Green
R1 T1 R2 T2
Black Y
ellow
1 2 3 4 5 6
Blue/White White/Blue
R1 T1 R2 T2
White/Orange Orange/White
6x2 Jack 6x4 Jack 6x4 Jack
T = Tip R = Ring