Motorola F5207A, F5217A Installation Guide download pdf (Page 48)

42 MW 800 Vehicle Installation Guide

Radio Frequency Interference (RFI): 1) The Radio Frequency (RF) radiation which

leaks from a device when it is transmitting. 2) Electrical disruption (noise) created by certain

types of equipment that may be radiated through air.

RS-232: The most common, standard interface used to connect Data Terminal Equipment

(DTE) to modems. It uses a DB-25 connector, although the DB-9 version has become

popular on PCs which have limited space for connectors.

Ultra High Frequency (UHF): Radio frequency, extending from 300 MHz to 600 MHz.

Underwriter’s Laboratories (UL): An independent and non-profit USA testing/

certification agency that was created by insurance companies to inspect electrical devices to

ensure there are no shock or fire hazards present.

Universal Serial Bus (USB): industry standard for PC bus interface enabling multi-drop

connection of both high-speed (12 Mb/s) and low-speed (1 Mb/s) serial port devices

Vehicular Radio Modem (VRM): VRM 650 or 850 - External radio modem integrated

with MCS2000 mobile radio into a single unit for use with separate MDT.

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Motorola F5207A, F5217A Installation Guide Page 48