Comtech EF Data LBC-4000 - Manual (Page 58)

LBC-4000 L-Band Up/Down Converter System Revision 4
Front Panel Operation MN/LBC4000.IOM
5–2
5.1.1 Energizing the LBC-4000
Chapter 2. INSTALLATION
Chapter 3. REAR PANELCONNECTIONS
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.
5.1.2 CONV A and CONV B LED Indicators
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.
The function of the LEDs is as follows:
LED STATE WHEN LIT, THE DESIGNATED SIDE...
SUM FAULT Red ...has active faults.
MUTE Amber ...is in Mute Mode.
ONLINE Green ...is operational.
UP Green ...is operating as an Up Converter.
DOWN Green ...is operating as a Down Converter.