• Home
    Tables – Communications hardware

    HardwareFunctionCommunication Protocol
    ModemModulates and demodulates signals for transmitting digital informationVaries (ADSL, VDSL, Dial-up, etc.)
    RouterConnects multiple networks and forwards data packets between themIP
    SwitchConnects devices on a computer network by using packet switching to receive, process and forward dataEthernet, Fibre Channel
    HubA common connection point for devices in a networkEthernet
    RepeaterReceives a signal and retransmits it at a higher level or higher powerVaries
    Wireless Access Point (WAP)Allows devices to connect to a wireless networkWi-Fi
    Network Interface Card (NIC)Provides a physical connection to a networkEthernet, Wi-Fi
    FirewallMonitors and controls incoming and outgoing network traffic based on security policiesIP
    Satellite DishReceives microwaves from communications satellites, which transmit data transmissions or broadcastsSatellite Communication
    Fiber Optic CableTransmits data as pulses of lightOptical Communication
    Coaxial CableTransmits data as electronic signalsBroadband Communication
    Ethernet CableConnects devices within a local area network such as PCs, routers, and switchesEthernet