All units in the ShackLAN-4 product line use the same connecter and pinouts for their network connections. Network connections are made to the 4-pin removable terminal block using the diagram below. Only a single connection to a power source is required as power is distributed throughout the network. A good, inexpensive source for the network cable is standard CAT-5 network cable. Parallel three wires for the +12 and three other wires for the Ground connections. Only a single wire is needed for each of the data lines as they carry no current. When using CAT-5 cable, be sure to use the same parallel combinations on each unit in the system.