A method and system for addressing nodes in a multi-drop wired network are disclosed. In an embodiment nodes communicate via a two-way communication bus. Upon receipt of an address command, a first node assigns itself a first address, closes a switch to activate an output port of the first node to enable a second node to receive communications from the first node, and sends a second address onto the two-way communication bus. The second address is received by all previously addressed nodes, including a controller if used, as well as the second node, which is as yet unaddressed. Upon receipt of the second address, the second node repeats the process. If a node does not receive an acknowledgement that a subsequent node has addressed itself, that node deactivates its output port and terminates the network.