Specifications

1-2 800 MHz System Planner R4-11-4G
BASIC SYSTEM TOPOLOGY
Vehicle Location (AVL), automated dispatching, and real-time database
update.
1.2 Basic System Topology
Figure 1-1 shows the basic Private DataTAC network with multiple base
stations and multiple radio-linked remote mobile computers. These
computers must be within the radio coverage area. The required coverage
area can have up to 64 data base stations, strategically located throughout the
area.
Figure 1-1. Basic Topology of a Private DataTAC System
Host Computer/Server
Basic System
Radio Network Controller
Subscribers (Mobile/Portable Computers) can be VRM 650, VRM 660, PRM 660,
FORTE, MW-520, VRM-500 with MCS 2000®, or SPECTRA® mobile radios.
• • • • • • • •
Modem Modem Modem
Modem Modem Modem
QUANTAR
Data Base
Station
3002 Grade or Type 5
(Category 5),
4-wire analo
g
circuits
ESD
BOND
POINT
FAN
FAN
MVME
2600-1
FAN
FLOPPY
LED
3002 Grade or Type 5
(Category 5),
4-wire analog circuits
QUANTAR
Data Base
Station
QUANTAR
Data Base
Station
Mobile/
Portable
Computer
Radio
Modem
Mobile/
Portable
Computer
Radio
Modem
Mobile/
Portable
Computer
Radio
Modem
Mobile/
Portable
Computer
Radio
Modem
Mobile/
Portable
Computer
Radio
Modem
Mobile/portable computers can be interfaced to VRM 650, VRM 660, PRM 660, or VRM-500 with
MCS 2000® mobile radios. MW-520 is available with an internal 800 MHz radio modem, but can be
connected to any of the external modems for other band applications.