TERION UM20-100111B, Руководство по установке, Страница: 11 / 78

2 Installation Overview
2.1 Installation Kit
The major components and the necessary mounting hardware of the Mobile Messaging
System are contained in an installation kit. Before installing, check the contents of the kit
against the packing list to verify that you have everything needed. For rear-mounted
antennas, a rear-mount supplemental kit is also required.
2.2 Major Components
There are three major components of the Mobile Messaging System. They are the antenna
system, the intelligent transceiver unit (ITU), and the driver terminal (DT).
2.2.1 Antenna System
The antenna system consists of a frequency
modulation/digital high frequency (FM/DHF) antenna, a
global positioning system (GPS) antenna, and the cabling
and mounting hardware. The FM/DHF antennas are
typically mounted on the side of the cab or on the outside of
the rear cab wall, and the GPS antenna is typically mounted
on top of the cab or roof structure with the ability to look
upward.
2.2.2 Intelligent Transceiver Unit (ITU)
The intelligent transceiver unit (ITU) is the “black box” that
accepts messages from the dispatcher, performs actions
according to their instructions, and then automatically
responds by transmitting data or messages back to the
dispatcher. Power, antenna, and DT cables are connected to
the ITU. The ITU is mounted in an inconspicuous location,
typically under the sleeper berth, or behind the seat.
2.2.3 Driver Terminal (DT)
The driver terminal (DT) provides the interface between the driver
and Terion’s Mobile Messaging System. Messages are viewed on
the screen and entered on the keyboard. The DT is mounted inside
the truck cab. Two DT models exist: the Journeyman-I, and the
Journeyman-II mmc. The model name is found on the front of the
driver terminal in white letters. Both driver terminals handle email
messages and forms; the only difference is that the Journeyman-II
mmc contains an internal cellular phone and modem, and has a
headset jack on the rear.
2-1
Mobile Messaging System Installation Manual June 15, 2001
UM20-100111B Terion, Inc.