The NUUO-SCB-C31 POS Surveillance Module provides financial transaction surveillance in one central system. The architecture is described below. The POS transaction data flows to a network video recorder (NVR) by Ethernet. Each cash register with an external receipt printer is connected via DB9 cable. The transaction information delivered in R232 format can be converted to Ethernet through the NUUO-SCB-C31 POS data capture converter.