SECTION 3
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User Interface Instructions
3-28
RT5900 SERIES Mobile Mount Radio Data Terminal
Peripherals Menu
Radio Tests
The Radio test is used for calibration purposes and is password-protected by
a unique seven-digit password
before
the menu will display. Technicians
and engineers may use these tests to determine the performance of the radio
transceiver at different communication speeds and modes of operation.
RS Loop
The RS-232 serial port test requires a special loopback connector which
loops back TX to RX, DTR to DSR, and CTS to RTS. An alternating pat-
tern is sent on each output line and checked for validity at the input line.
The condition of each line pair is reported on the display as passing or fail-
ing the test.
LCD Display
When you select this test, you will be prompted to use the
UP
and
DOWN
arrow keys to vary the contrast. Relative contrast is indicated by a number.
You must press the
ENTER
key a total of four times to exit the LCD Dis-
play test; pressing the
ENTER
key results in a predetermined test sequence.
The fourth press of the
ENTER
key causes the display to return to the Pe-
ripherals menu.
Keyboard
This test produces a mockup of the keyboard on the display. Each key is
represented by one or more lower case letter x’s; press the highlighted key
to test it. A good test results in the x’s becoming upper case. The cursor
then moves to the next key.
Scanner
Attach a scanner and scan bar codes. Codes are displayed and their length is
identified.
