Appendix A. Faults/Events; Led Status Indicators; Figure A-1. Mbt-4000B Led Indicators - Comtech EF Data MBT-4000B User's Installation And Operation Manual

Appendix A. FAULTS/EVENTS

A.1

LED Status Indicators

The MBT-4000B Multi-Band Transceiver System features two Light-Emitting Diode (LED)
indicators. As shown in Figure A-1, the LEDs are found on the top of the MBT-4000's base
module, under a protective plate. To view the LEDs, loosen the thumbscrew that keeps the plate
in place, then swing the plate away to reveal the LED display window.
The Unit 1 LED is for the installed BUC (Slot 1). The Unit 2 LED is operational when the presence
of an LNB is detected. Each LED provides the user with visual cues to the operational, online,
and offline status for the system.
A steadily-lit LED indicates that the specified unit is ONLINE. A blinking LED indicates that the
specified unit is OFFLINE. The user is presented with MBT-4000B system status as per the
following table:
UNIT STATUS
ONLINE
OFFLINE

Figure A-1. MBT-4000B LED Indicators

LED COLOR
GREEN
YELLOW
RED
GREEN (blinking)
YELLOW (blinking)
RED (blinking)
UNIT STATE
No faults present; the unit is not muted.
No faults present; the unit is muted.
The unit is faulted.
No faults present; the unit is not muted.
No faults present; the unit is muted.
The unit is faulted.
A–1