Clear-Com HX System Frames - Manual (Page 85)

D
Secondary Link Status LEDs
These LEDs indicate the status and functioning of the secondary (B) fiber
optic link.
Link LED
This LED indicates whether a link has been established on the secondary fiber
optic circuit (transceiver B). When illuminated a link is present.
TXVR LED
This LED indicates when data is being transmitted on the secondary circuit. It
is illuminated when data is present on the circuit.
ACT LED
This LED is lit if the secondary fiber optic circuit is active.
ERR LED
This LED will be illuminated if an error condition is detected on the secondary
fiber optic circuit.
E
Status LED
The red status LED illuminates to indicate a failure in communication
between the fiber card and the CPU card.
Frame Data LED
The green frame data LED illuminates to indicate successful communication
between the fiber master card and the CPU card.
Table 18: E-FIB front panel lights and controls
85 Eclipse HX-Median User Guide