Perimeter surface raceway systems have long been designed to accommodate power and data cabling using separate channels to provide a separation between the two. This required separation of power and data channels imposed certain restrictions on raceway system design that until now have limited the placement of receptacles and data jacks, and reduced a raceway's capacity to meet bend radius requirements. A new raceway design maintains complete separation of services, while offering improved function and flexibility. Unique "crossover" units enable receptacles and data activations to be positioned side-by-side in the same channel, rather than in separate channels. This also has the effect of providing additional space within the raceway to meet cable bend radius requirements. Because the entire width of the raceway is available, rather than just one channel, the cable bend can be more gradual.