LBC-4000 L-Band Up/Down Converter System
Front Panel Operation
5.1.1
Energizing the LBC-4000
Chapter 2. INSTALLATION
Chapter 3. REAR PANELCONNECTIONS
5.1.2
CONV A and CONV B LED Indicators
The function of the LEDs is as follows:
LED
SUM FAULT
MUTE
ONLINE
UP
DOWN
The prime power switch is mounted behind the front panel. To access the
switch, loosen the three front panel thumb screws, slide the front panel
out from the chassis, and then drop down the panel.
Prior to turning on power to the unit, check to ensure that installation is
complete, and verify that the LBC‐4000 is connected to the proper prime
power source, RF Input, and RF Output.
Switch on the unit and verify that the cooling fan is operational, the LED
indicators illuminate as expected, and the Vacuum Fluorescent Display is
readable.
The operational state of the LBC‐4000 is represented by two sets
of five front panel LED indicators – one set each for – CONV A and
CONV B.
STATE
WHEN LIT, THE DESIGNATED SIDE...
Red
...has active faults.
Amber
...is in Mute Mode.
Green
...is operational.
Green
...is operating as an Up Converter.
Green
...is operating as a Down Converter.
5–2
Revision 4
MN/LBC4000.IOM