User's Manual

4
Fig. 3.2 - FM4500 FIBER - panel
3.1.2 Status and Link LEDs
A panel on the front of the FM4500 FIBER, shown in Fig. 3.3, provides six (6) LEDs which can be
used to check the unit and the link quality status. From the left-hand side, the first 2 green LEDs indicate
the unit power, the Ethernet port activity, respectively. The remaining 4 colored LEDs indicate the
level of the link signal and can be used for antenna alignment purposes. During the unit boot-up
process, the LEDs indicate the boot status and can be used for problem detection. Specifically, the 4
colored LEDs light up in sequence from the leftmost one (red) to rightmost one (bright green). If the
LEDs lighting up sequence does not complete, then an error has been detected during the booting
process. Please refer to Table 3.1 for details.
Fig. 3.3 - From Left To Right Status LEDs, Link/Boot LEDs
LED$#$(Color)
!
Boot$Status
!
Link$ Quality!
1$(Re d )
!
"##$%&'!(#)*!+,+$*-
!
.##)/0%&1!23+*&$
!
2$(O ran ge)
!
"##$%&'!4%)*0*++!+,+$*-
!
52%)!
3$(Gre e n)
!
"##$%&'!)#6 $%&'!*&'%&*
!
7##8
!
4$(Gre e n)
!
"##$%&'!6&%$!(#&9%'6)2$%#&
!
:*),!'##8
!
Table 3.1 - FM4500 FIBER Boot/Link Status LEDs Color Scheme