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

Appendix B. FAULTS/EVENTS

B.1

LED Status Indicators

The MBT-4000 Multi-Band Transceiver System features two Light-Emitting Diode (LED)
indicators – one for each operational unit (module). Each LED provides the user with visual cues
to the operational, online, and offline status for the sytem.
As shown in Figure B-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.
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-4000 system status as per the
following table:
UNIT STATUS
ONLINE
OFFLINE

Figure B-1. MBT-4000 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.
B–1