In this method, XDM/DCCM3 can communicate with conventional systems such as XDM in the same way as the issuance of remote procedure calls from CUP to OpenTP1. This section describes how to communicate with the servers other than the OpenTP1 server using a LAN connected by a TCP/IP protocol. You can communicate with XDM/DCCM3 in the same way as for service requests to OpenTP1.

If TP1/Client/W, TP1/Client/P or TP1/Client/J communicates with the XDM/DCCM3, DCCM3/SERVER/TP1 must be installed in the XDM/DCCM3 host.