28 Chapter 4: Cabling interfaces and portsNetwork interfaceThe T3/E3 network interface receives and transmits data over two 75-ohm coaxial cableswith BNC connectors. These cables are shipped with protective caps on the BNC connec-tors. Leave the caps in place until you are ready to connect the cables.Maximum lengthsT3: 450 ft (137 m) maximum from transmitter to cross-connect and 450 ft (137 m) maxi-mum from cross-connect to receiver.E3: 274 m (900 ft) maximum.Cables and adaptersxx is length in feet. Call the factory for available lengths.Part number Description of cable96xx009 BNC male to BNC female96xx 010 BNC male to BNC male77994001 BNC male to DIN female adapterNetwork interface