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TM115007 REV A (04/07)
2-1
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CHAPTER 2
OPERATION
2.1 OVERVIEW
The TPT is the portable unit in the TruLink wireless communication system. The operator wears the
TPT along with a headset that includes headphones and a microphone. The TPT has an operator
interface consisting of buttons for input and an audio voice menu, known as SynVoice, for output.
The operator interface consists of five keys, a two-colored LED and an audio voice menu, SynVoice.
The SynVoice is a sampled phrase database that is used as an audio display, instead of a visible
display, to indicate selections and status.
Key presses in response to a voice menu modify the operation of the TPT.
The keys on the TPT unit are:
PTT
,
M
,
up arrow
,
down arrow
, and
*
. For every key pressed, a
KEY
CLICK
sound is heard in the headset.
2.2 PHYSICAL
DESCRIPTION
The TPT is a handheld device as shown in Figure 2.3.2-1. The key elements of the unit are the
keypad, antenna and headset jack, powered by three AA batteries.
The keypad is ergonomically designed to facilitate use with gloves. The antenna is designed to be
flexible and durable. The headset jack is strategically located on the bottom to allow the headset cord
to drape naturally.
It measures approximately 7.75 inches high (with antenna) by 2.9 inches wide by 1.9 inches in depth
(with belt clip). See Figures 2.3.4-1 and -2. The TPT weighs approximately 11 oz. (without
batteries).
2.3 BATTERIES
2.3.1 Installing/Changing
The battery compartment is located under the hinged cover on the back of the TPT unit (see Figure
2.3.2-1). To access the batteries, rotate the thumbscrew counterclockwise until disengaged and raise
the cover. Remove the depleted batteries and install fresh batteries with the positive end down.
Battery type switch must be properly set to
avoid damaging the TPT unit.
CAUTION
