A dual communication-interface facility monitoring and management system, said system comprising: a multiplicity of facility monitoring \ management devices, said multiplicity of facility monitoring \ management devices comprising at least one of at least one facility monitoring sensor and at least one facility management device, said at least one facility monitoring sensor being operative to monitor at least a part of a facility, said at least one facility management device being operative to manage at last part of said facility; a facility communication gateway operative to facilitate electronic communication between a local area network associated with said facility and an a wide area network external to said facility; and a dual communication-interface facility monitoring and management subsystem operative to communicate with each of said multiplicity of facility monitoring \ management devices via at least one of a first multiplicity of communication protocols and to communicate with said facility communication gateway via at least one of a second multiplicity of communication protocols, characterized in that said dual communication-interface facility monitoring and management subsystem is implemented in a USB adaptor device, said USB adaptor device being at least one of: mounted on a USB mounting device which is inserted into an electric wall socket, thereby providing electric power to said dual communication-interface facility monitoring and management subsystem; mounted on a USB mounting device which is wire connected to said facility communication gateway; and inserted into an appropriate USB port in said facility communication gateway for direct communication therewith. a multiplicity of facility monitoring \ management devices, said multiplicity of facility monitoring \ management devices comprising at least one of at least one facility monitoring sensor and at least one facility management device, said at least one facility monitoring sensor being operative to monitor at least a part of a facility, said at least one facility management device being operative to manage at last part of said facility; a facility communication gateway operative to facilitate electronic communication between a local area network associated with said facility and an a wide area network external to said facility; and a dual communication-interface facility monitoring and management subsystem operative to communicate with each of said multiplicity of facility monitoring \ management devices via at least one of a first multiplicity of communication protocols and to communicate with said facility communication gateway via at least one of a second multiplicity of communication protocols, characterized in that said dual communication-interface facility monitoring and management subsystem is implemented in a USB adaptor device, said USB adaptor device being at least one of: mounted on a USB mounting device which is inserted into an electric wall socket, thereby providing electric power to said dual communication-interface facility monitoring and management subsystem; mounted on a USB mounting device which is wire connected to said facility communication gateway; and inserted into an appropriate USB port in said facility communication gateway for direct communication therewith. mounted on a USB mounting device which is inserted into an electric wall socket, thereby providing electric power to said dual communication-interface facility monitoring and management subsystem; mounted on a USB mounting device which is wire connected to said facility communication gateway; and inserted into an appropriate USB port in said facility communication gateway for direct communication therewith.