Patent ID: 7061926

Claim:
A network bus topology for a master/slave communication network comprising: a transmission cable including a transmit twisted-wire pair, a receive twisted-wire pair, and a sense cable; a master module including a master transmit terminating resistor and a master receive terminating resistor, both master terminating resistors being operably connected to the transmission cable; a slave module including a slave receive terminating resistor and a slave receive switch, the slave receive terminating resistor being operably connected to the slave receive switch wherein the master transmit terminating resistor and the slave receive terminating resistor being operably connected to the transmit twisted-wire; and, a load resistor being operably connected to the sense cable, the slave receive switch being operably responsive to the load resistor to generate a receive terminate enable wherein the slave receive switch inserts the slave receive terminating resistor onto the transmit twisted-wire pair of the transmission cable in response to the receive terminate enable.