DocBridge Spool is designed to enable the configuration, monitoring and management of multiple IPDS print processes. Therefore, the scope of delivery of DocBridge Spool includes configuration options for IPDS Listeners and IPDS Receivers. The IPDS Listener and IPDS Receiver are configured in pairs. Within an DocBridge Spool installation, you can freely configure the required number of IPDS Listener and IPDS Receiver pairs (up to the maximum supported number of 151 pairs). Within a pair, the IPDS Listener connects to the provided web interface for DocBridge Spool and also provides a REST interface for connecting external applications. The IPDS Receiver is responsible for the job processing and generates the XFF files.