| 摘要 |
<p>An internetworking relay apparatus (10) interconnects control networks (11) via Time-Division Multiplexing (TDM) link (13), for providing an integrated control/communications network. The TDM relay or gateway allows the transparency in communications between control networks of the same kind. It also supports the interconnection between various control networks of different types. The TDM relay or gateway connects a control network or a control node (12) to the TDM link. The TDM gateway has the structure of a half-relay or half-gateway, providing a complete functions stack for physical, datalink and network layers to communicate with a control network according to the protocol used by this control network. A common intermediate protocol and associated functions stacks for physical, datalink and network layers operating over the TDM link are specified.</p> |
