A bridge device for a building network includes a radio, a wired communications interface configured to communicate with a first master slave/token passing (MS/TP) network, and a processing circuit configured to wirelessly transmit and receive messages to and from MS/TP devices coupled to the MS/TP network. The processing circuit is configured to transparently communicate the messages such that the MS/TP devices on the first MS/TP network are operationally unaware of a wireless network associated with the bridge device by passing tokens for MS/TP devices outside of the MS/TP network.