Fig 1.
indicates the difference between the "J" style, "H" style and "L"
style track. The "H" style has a three wire configuration, whereas
the "L" and "J" style track consists of a two wire configuration.
Fig 2.
Fig 2.
shows a diagram of a "J" style track and track connector. Dark gray indicates the
metal housing of the track, light gray indicates the internal frame and
orange indicates the bus bars.
Fig 3.
Fig 3.
shows a diagram of a "H" style track and track connector. Dark gray indicates the
metal housing of the track, light gray indicates the internal frame and
orange indicates the bus bars.
Fig 4.
Fig 4.
shows a diagram of a "L" style track and track connector. Dark gray indicates the
metal housing of the track, light gray indicates the internal frame and
orange indicates the bus bars.
Fig 2. 
Fig 3. 
Fig 4. 