Two-way communications between casino games and diverse master controllers using a universal game module there between allows routing event messages with standard protocols. Where the object is mountable on mounting rails having keying features of different sizes and shapes, the keying member may be selected from a set of keying members for having a keying feature of a size and shape that corresponds to the size and shape of the keying feature of the mounting rail. The present invention is also directed to an improved door for use on the invented containers, as well as conventional containers and railcars. The communications network can be, for example, a private line network, a SONET-based network, an Asynchronous Transfer Mode -based network, an Internet ProtocolMultiProtocol Label Switching -based network or a frame relay -based network.