D-Link DE-824TP User Guide - Page 8

Uplink should be selected only for making a hubto-hub connection with a straight cable. When Uplink is selected at one end of a straight cable, Uplink must not be selected at other end of that cable. (If Uplink were selected at both ends of a straight cable, then the built-in crossovers of the two connectors would cancel one another, and the hub-to-hub connection would fail.) Thus the rule for making a hub-to-hub connection with twisted-pair cable is as follows: To make a hub-to-hub connection with a straight cable, Uplink must be selected at one end of the cable, and Uplink must not be selected at the other end of the cable. To make a hub-to-hub connection with a cross-over cable, Uplink must not be selected at either end of the cable. Thin Coaxial Cable Connections To connect the Ethernet Hub to a thin coaxial cable (10Base2 cable, also known by its wirestandard name, RG58A/U, and a variety of other informal names), first twist a BNC T-connector onto the rear-panel BNC connector of the Ethernet Hub. Then twist the shell of the cable's connector onto either leg of the BNC T. If the thin coaxial cable continues on to other nodes, then twist the shell of the continuation cable onto the remaining leg of the BNC T. If there is no continuation (the Ethernet Hub is at the end of the coaxial cable), then it is necessary