User manual

DTS Broadcast PDH Microwave Digital Radio User Manual
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The beeper will beep up one time when press key is valided, otherwise beep up 2 times.
There have two status of operating in LCD panel, one is displaying status, and another one is
modifying status.
Displaying Status
The L54 enters displaying status after power on first. At this time, press the and keys
on the IDU to scroll screen up or down; Press the
keys on the IDU to display local or remote
screen or to display other screens of defferent parameters in same group. And hold if no more screens
can be scrolled, beeps two times for indicating. When press CLR key, it will back to the first screen.
The values of parameter will be refreshed every two seconds. And will be displayed as “xxx” if
value is not valid when interrupted with remote terminal or interrupted with ODU.
The screen has options for selecting or modifying when cursor is flickering. And use the
keys on the IDU to select or modify one of multi options. The screen will jumps to the
selected option when prees ENT key at cusor indicated option. If cursor is on the modifying option,
and we press ENT key, the screen will enters modifying status.
Backlight of LCD:
Backlight will on and remains 20 seconds when prees anykey for enhances the readbality of LCD
unit in offices with even brighter service environments. The backlight will flicker when alarm accored
(prefer to section 9.3). After one hour for no press any key, the LCD will off for more life, at this time,
the LCD will display nothing. And the LCD will on and display again when pressing any key.
Sometimes, the LCD may display wrong symbol, so we correct this display by press CLR key for 6
times.