Document: LT0732 QE20 Fibre Networking User Manual
Issue 1.0 24 May 2023 Page 1-5
DTMF Dual Tone Multi Frequency: an interference resistant technique
for encoding telephone dial key presses into audio frequencies.
Multidrop A network segment with potentially more than two devices. Data
messages need to be addressed, and there needs to be a means
to ensure that only one device transmits at a time.
Point to Point A network segment with only two devices – one at each end. Data
messages do not need to be addressed to reach their immediate
destination. With a “full duplex” connection both devices can
transmit at the same time, while with a “half duplex” connection
only one device can transmit at a time.
Router The same as a hub, but data is transmitted on only the required
other ports (based on IP address).
Routers typically are capable of working out the best (fastest)
route to a final destination if there are several routes, and working
out alternative routes if the usual route is “down”.
Switch The same as a hub, but data is transmitted on only the required
other ports (based on LAN address, e.g., Ethernet MAC address).
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