According to an aspect of the present disclosure, a connector assembly for terminating a plurality of discrete wires and for selective electrical interconnection with a header assembly is provided. The connector assembly includes a front housing defining at least one channel therein; a rear housing operative connected to the front housing, the rear housing including at least one passage formed therein and in operative association with a respective channel of the front housing, each passage terminating a respective discrete wire; and at least one contact disposed at least partially within each channel of the front housing and each corresponding passage of the rear housing. The connector assembly further includes a visual coding system provided on a surface of at least one of the front housing and the rear housing. The visual coding system includes unique indicia for each passage of the rear housing.