scope:

FORWARD

This document describes the operation of a CEBus-EIB Router. This document is not intended to define how a router should operate, but to provide an overview of the operation and the coordination of various router elements. The document EIA-776, Part 4: CEBus-EIB Router Network Layer defines the exact operation of each element in the Network Layer and the interelement interfaces. Documents EIA-776, Part 3: CEBus-EIB Router Logical Link Control Sublayer and EIA-776, Part 2: CEBus-EIB Router Medium Access Control Sublayer define the operation of the Router Data Link Layer. Both EIB-776, Part 4: CEBus-EIB Router Network Layer and this document assume an understanding of Data Link and Physical Layer operations. This document, EIA-776, Part 1: Description of the CEBus-EIB Router, should be read before reading EIA-776, Part 4: CEBus-EIB Router Network Layer.

EIA-600, the CEBus standard, contains the specification for a CEBus network and is referenced in this document. EIA-776, Part 5: The EIB Communications Protocol describes the EIB communications protocol used within the CEBus-EIB Router.

Note that the CEBus-EIB Router documents describe a router as a device that links two wired media, one in a CEBus network and one in an EIB network. This approach was taken to simplify the specification. Routers may be designed that link more than two media, but must still adhere to the behavior described in these documents.