A system for coupling controller area network, CAN, buses via a twisted pair wire cable within a transmission line to extend the communication range of CAN buses, the system comprising: a first repeater device comprising: a standard CAN transceiver coupled to a CAN bus, configured to sense levels on the CAN bus and supply a first receive signal indicating the sensed levels, and configured to receive a first transmit signal and drive a corresponding level on the CAN bus; a high-speed CAN transceiver coupled to an inter-bus twisted pair, configured to supply a second receive signal that signals the level on the inter-bus twisted pair, and configured to receive a second transmit signal and drive a corresponding level on the inter-bus twisted pair, the high speed CAN transceiver configured to provide low differential voltage signalling via the inter-bus twisted pair; and logic circuitry coupled to the standard CAN transceiver and the high-speed CAN transceiver and configured to break closed lock loop between standard CAN transceiver and the high-speed CAN transceiver; and a second repeater device connected to the first repeater device via the inter-bus twisted pair and connected to a second CAN bus, whereby the first and second repeater devices connected via the inter-bus twisted pair using low differential voltage provide faster signal transition, wherein the inter-bus twisted pair link interconnects the high speed CAN transceiver of the first repeater device with a high speed CAN transceiver of the second repeater device, the second repeater device being connected to the second CAN bus, wherein both the high speed CAN bus transceivers of the first and second repeater devices use low differential voltage for communicating on the inter-bus twisted pair to substantially decrease signal transition time and enable extended signal transmission range. a first repeater device comprising: a standard CAN transceiver coupled to a CAN bus, configured to sense levels on the CAN bus and supply a first receive signal indicating the sensed levels, and configured to receive a first transmit signal and drive a corresponding level on the CAN bus; a high-speed CAN transceiver coupled to an inter-bus twisted pair, configured to supply a second receive signal that signals the level on the inter-bus twisted pair, and configured to receive a second transmit signal and drive a corresponding level on the inter-bus twisted pair, the high speed CAN transceiver configured to provide low differential voltage signalling via the inter-bus twisted pair; and logic circuitry coupled to the standard CAN transceiver and the high-speed CAN transceiver and configured to break closed lock loop between standard CAN transceiver and the high-speed CAN transceiver; and a standard CAN transceiver coupled to a CAN bus, configured to sense levels on the CAN bus and supply a first receive signal indicating the sensed levels, and configured to receive a first transmit signal and drive a corresponding level on the CAN bus; a high-speed CAN transceiver coupled to an inter-bus twisted pair, configured to supply a second receive signal that signals the level on the inter-bus twisted pair, and configured to receive a second transmit signal and drive a corresponding level on the inter-bus twisted pair, the high speed CAN transceiver configured to provide low differential voltage signalling via the inter-bus twisted pair; and logic circuitry coupled to the standard CAN transceiver and the high-speed CAN transceiver and configured to break closed lock loop between standard CAN transceiver and the high-speed CAN transceiver; and a second repeater device connected to the first repeater device via the inter-bus twisted pair and connected to a second CAN bus, whereby the first and second repeater devices connected via the inter-bus twisted pair using low differential voltage provide faster signal transition, wherein the inter-bus twisted pair link interconnects the high speed CAN transceiver of the first repeater device with a high speed CAN transceiver of the second repeater device, the second repeater device being connected to the second CAN bus, wherein both the high speed CAN bus transceivers of the first and second repeater devices use low differential voltage for communicating on the inter-bus twisted pair to substantially decrease signal transition time and enable extended signal transmission range.