M2/M3 BRADLEY FIGHTING VEHICLE: TURRET - OD1609 LESSON 3/TASK 1
2.
General Description of the STE-M1/FVS Test Set
a.
General.
The power for the operation of the test set is supplied by the
vehicle under test. The STE-M1/FVS test set combines common and peculiar hardware.
The common hardware items are used for testing all the vehicles that the test set
supports. This hardware is used in conjunction with the peculiar items necessary
to meet the requirements of the vehicle being tested.
For the purposes of this
paragraph, only the common hardware needed will be described in detail.
b.
Common Hardware. The common hardware items consist of a vehicle test meter
(VTM), a controllable interface box (CIB), a set communicator, and associated
adapters and cable assemblies.
(1)
Vehicle Test Meter (VTM). The vehicle test meter (VTM) is the basic unit,
to which the controllable interface box (CIB) and the set communicator are
connected. A microprocessor within the VTM controls the internal operation and the
data inputs and outputs. The VTM receives input power from the CIB. In the stand-
alone mode, the VTM is able to measure voltage, resistance, current, and frequency.
The VTM is part of the VTM/Transducer Kit/Set Communicator Assembly (figure 11 on
the following page).
(2)
Controllable Interface Box (CIB).
The controllable interface box
(CIB)(figure 12 on page 100) is connected by cables to both the VTM and to the
vehicle being tested.
The CIB has two identical 128-pin connectors.
When these
connectors are used with the test cables and peculiar hardware items, they connect
to the vehicle test connectors and active junctions.
The CIB also contains a
microprocessor for multiplexing, communication, and power control.
The CIB is a
part of the controllable interface assembly, which also contains an adapter.
(3)
Set Communicator. The set communicator (SETCOM) is the means by which the
test set communicates information to the operator. A keyboard allows the operator
to communicate with the test set. These communications include the input of test
data, test numbers, responses to observations, and commands to control the test
progress. Thirty-nine characters of an alpha-
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