Parts
6
on the following pages show and
describe the external parts of the PTC-960RL. The
parts listed below are internal and, therefore, are not
shown in either of the figures.
Flash EPROM
A flash EPROM is an electronic component installed
inside the PTC. It contains the PTC’s data collection
program and determines the PTC’s key functions,
display prompts and messages, and how and when the
PTC collects or transmits data. If your PTC has an
internal radio, a second flash EPROM holds the
program that controls the radio.
For details on erasing and repro-
gramming flash EPROMs, refer to the
Guide to the Flash Utilities (TCAL or
MS-DOS Version)
.
These flash EPROMs can be erased and
reprogrammed while they are inside the PTC. First,
the PTC must be connected to a host computer, via a
cable or by being placed in a communication cradle.
Then, using software in the PTC’s operating system,
you can erase the flash EPROM and reprogram it
with a new program from the host computer.
Radio (optional)
Your application program controls
the radio. Refer to your application’s
manual for details.
The PTC-960RL can be equipped with a DATASPAN
spread spectrum radio, which allows the PTC to
interactively communicate in real-time with a host
computer on a radio-based local area network. Spread
spectrum provides secure, interference-free
communication and does not require a license for
operation.
17
