(1) Handheld terminal unit (HTU) is a ruggedized eight-pound, battery-operated version that
can be operated in transit and in MOPP 4. It provides alphanumeric and graphic displays.
(2) Portable computer unit (PCU) comes in both commercial and ruggedized versions. It is a
one-person-carry that features audible and visual alerts, purgable memory, integral display only, and can
be operated in MOPP 4. If the power source is interrupted, it can operate on battery power for up to ten
minutes.
(3) Transportation computer unit (TCU) comes in both commercial and ruggedized versions.
It is a two-person-carry that features purgable memory and an integral display with the ability to operate
into an external color monitor. Like the PCU, it has the power interrupt feature and can be operated in
MOPP 4.
c. The software concept of CHS uses the Ada computer language as the standard. Application
packages are available, such as word processing, spreadsheet, graphics, local area network (LAN),
communications, maintenance, diagnostics, and tutorials.
8.
Battlefield Functional Areas (BFA).
a. In accordance with the Army Command and Control Master Plan, five BFA are recognized
on the battlefield. They are maneuver control, fire support, air defense, combat service support, and
intelligence and electronic warfare. These five BFA serve as a focal point for integrating battlefield
automated systems (BAS), which support each functional area and identify the requirement for
information to flow continually among and within the BFA. The relationship between the BFA and
BAS is shown in the five pointed Sigma Star depicted in Figure 1-4, page 1-12.
(1) Maneuver control directs maneuver forces, in a timely manner, in order to accomplish the
combat mission.
(2) Fire support provides the commander with direct and indirect fires against ground targets.
(3) Air defense nullifies or reduces the effectiveness of attack or surveillance by hostile
aircraft or missiles after they are airborne.
(4) Intelligence and electronic warfare provides intelligence collection and analysis to
produce tactical intelligence, targeting data, and electronic warfare capabilities.
(5) Combat service support provides resources to all units on the battlefield to sustain their
mission.
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