Product Guide

MOD-10-1164
sepura
TETRA Terminals
Product Guide
06-06-12
Page 43 of 45
Issue 9
© Sepura plc 2012
GLOSSARY
Term
Description
Gateway
A device which allows users working in Direct Mode to communicate
with users in Trunked Mode. (This is often used to extend the working
range of a radio)
Duplex
Duplex calls are telephone type calls in which both parties can talk
simultaneously.
ETSI
European Telecommunications Standards Institute
Half duplex
Half duplex calls are when only one party can talk (transmit) at any
time.
LED
Light Emitting Diode
Navi-knob™
A continuous rotating knob on the top of the radio that is used for
talkgroup and status message selection, as well as controlling the
volume.
NRPB
National Radiological Protection Board
PEI
Peripheral Equipment Interface
PTT
Press To Talk
RSM
Remote Speaker Microphone
TETRA
Terrestrial Trunked Radio