Rj-11 Ports - SMC Networks SMC7800A Installation Manual

RJ-11 P
ORTS

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 CPE 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.
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
Figure B-4 RJ-11 Wiring
B-5