User's Manual

52 TruSense Hardware Configuration TruSense Configuration Manual
Glossary
1. CCA = Clear Channel Assessment - Clear channel assessment - The clear channel assessment
operation determines whether the wireless medium is busy or idle. The MAC layer can then make a
decision on whether to send a frame.
2. CLC = Communication Link Controller – processes telemetered data to/from the TRX for communications
over the Ethernet connection.
3. Firmware = The combination of a hardware device and computer instructions and data that reside as
read-only software on that device
4. IP Address = Internet Protocol address is a numerical label assigned to each device participating in a
computer network that uses the Internet Protocol for communication
5. LBT = Listen Before Talk (LBT) or sometimes called Listen Before Transmit is a technique used in radio
communications whereby a radio transmitter first senses its radio environment before it starts a
transmission.
6. MAC Address = Media Access Control Address, is a unique identifier assigned to network interfaces for
communications on the physical network segment.
7. NTP = Network Time Protocol is a protocol and software implementation for synchronizing the clocks of
computer systems over packet-switched, variable-latency data network
8. RSSI = Received Signal Strength Indicator (or Indication): A signal or circuit that indicates the strength of
the incoming (received) signal in a receiver.
9. TRX = Transceiver: Component that receives Radio-Frequency signals and converts it into digital form
that is sent, via cable, to the Communication Link Controller; additionally, the component that transmits
Radio-Frequency signals converted from digital form sent via cable, from the Communication Link
Controller