A VDSL customer drop testing arrangement and equipment utilizes a test set top box having a sign-on identifier unique to an authorized test device to perform testing of the customer drop without the need to provision the drop for receipt of video programming or data services from any network information or service providers. Each S-machine is a dynamically reconfigurable computer having a memory, a first local time-base unit, and a Dynamically Reconfigurable Processing Unit. The source data includes a portion of a source image, and the source image includes an image of the background and a foreground. This description is not intended to be a complete description of, or limit the scope of, the invention. A first end of each rotation stand set is fixedly disposed on the rotation base. The rotating member is installed penetrating the first through hole and the second through hole and has a contacting portion located within the second through hole, wherein the position block is capable of being pushed by the contacting portion and moved along the transverse axis-direction of the plug body for disengaging the first rack components from the second rack components.