26PCLAN cable(Locally procured: 10BASE-T /100BASE-TX / 1000BASE-Tcategory 5e, straight (NTSC model) /category 7, straight (PAL model))PCRecorderNetwork camerasHubConnectionsThe following are descriptions of how to connect the recorder, PCs, cameras and extension units. Required devices and cables varydepending on how to connect them. Before starting the connections, check the required devices and cables for your environment.■ Connection between cameras and PCsWhen connecting the recorder and PCs through a hub, use a LAN cable (straight) to connect between the recorder and a hub.Cameras should also be connected through a hub using LAN cables (straight). 1-port operation and 2-port operation are available forthe connection of the PCs and the cameras.Important:• Be sure to use a hub to connect the recorder and a PC with a straight LAN cable.• Do not connect directly between the recorder and a PC with a cross LAN cable. Otherwise, some PCs may have trouble in com-municating securely, displaying images, or playing recorded images.Connection Description Port to be used1-port operation Suitable when direct access between PCs and cameras can beestablished, not via the recorder, such when PCs and camerasare on the same networkClient PC port2-port operation Suitable when direct access between PCs and cameras cannotbe established such when PCs and cameras are not on thesame networkCamera portClient PC port● 1-port operationDirect connection using a hubConnect cameras and PCs using the client PC port at the rear of the recorder.Images from the cameras transmitted to the client PC port will be transmitted to PCs from the same client PC port.