In such a message you will find an OPC (Originating Point Code) and a DPC (Destination Point Code); sometimes documents also refer to it as a signaling point code.
在这个信息中，你会发现一个始发点代码（Originating Point Code，OPC）和一个目标点代码（Destination Point Code，DPC）;有时文件还提到它作为一个信令点编码。