RM4200D systems provide an Ethernet port. This interface - an RJ 45 socket - is located on the Communications & Logic Controller RM420-850. It is a standard Twisted Pair interface running on 100 Mbit/s. It complies to the standard 100Base-TX, IEEE 802.3u.

The Ethernet port is used for two tasks: First, it allows the RM4200D to communicate with one or more Windows PC running DHD application software. Second, several different DSP frames within the same network communicate to each other using Ethernet. If they cannot talk to each other over the network, control functions shared between different DSP frames will not work!

For the Ethernet communication to work properly, several requirements must be met. Please read the following instructions carefully to avoid problems. This is especially true for larger RM4200D installations and complex networks!