Comtech EF Data MBT-4000 - Manual (Page 69)

B–1
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.
Figure B-1. MBT-4000 LED Indicators
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 LED COLOR UNIT STATE
ONLINE
GREEN No faults present; the unit is not muted.
YELLOW No faults present; the unit is muted.
RED The unit is faulted.
OFFLINE
GREEN (blinking) No faults present; the unit is not muted.
YELLOW (blinking) No faults present; the unit is muted.
RED (blinking) The unit is faulted.