SMC Networks SMC7901WBRA2 B1 manual RJ-11 Ports, 3 4 5

APPENDIX C Cables and Pinouts

RJ-11 Ports

RJ-11 PORTS

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

Blue/White White/Blue	White/Orange Blue/White White/Blue Orange/White	Black Red Green Yellow
R1 T1	T2 R1 T1 R2	T2 R1 T1 R2

1 2 3 4 5 6

1 2 3 4 5 6

1 2 3 4 5 6

	6x2 Jack		6x4 Jack	6x4 Jack
			T = Tip R = Ring
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

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