The On-Premises Connector or OPC typically resides behind a firewall and is responsible for brokering the data access between the DAS and a database endpoint that is accessible via a LAN. A single Hybrid Data Pipeline instance can connect to one or more OPCs.

An OPC establishes a connection with the DAS using an outbound request to the Service API using HTTPS, as shown in Figure 1. The server will create a new data endpoint and return that address to the OPC. The OPC will then establish a mutually authenticated, SSL-secured session with the DAS to handle the flow of data from the LAN-accessible database to the application connected to the client.