Chapter 2: System hardware
System Components
Page
2-20
Table 25 SM/BHS LED descriptions
Status information provided
LED
Color when
active
SM / BHS in
“Operating” Mode
SM / BHS in
“Aiming” Mode
Note
PWR
Red
DC power
DC power
Always lit after 10-20 seconds
of power on.
STDBY/
PWR
Yellow/Blue
Flashes Yellow during boot-
up.
Flashes Blue when operating.
SYN/1
Yellow
Presence of sync
These three LEDs
act as a bar graph
to indicate the
relative quality of
alignment. As
power level
improves during
alignment, more of
these LEDs are lit.
Lit when SM/BHS is in sync
with an AP/BHM.
SES/2
Green
Session Indicator
Lit when SM/BHS is in session.
GPS/3
Red
Unused
Unused
ACT/4
Yellow
Presence of data
activity
on the Ethernet link
Presence of data
activity
on the Ethernet link
Flashes during data transfer.
Frequency of flash is not a
diagnostic indication.
LNK/SP
D/ACT/
4
For 450b
Series
Red/Green/Ora
nge
(10/100/1000)
Ethernet Link
Ethernet Link
Flashes during data transfer.
Frequency of flash is not a
diagnostic indication.
10Base-T : Red
100Base-T : Green
1000Base-T : Orange
MAIN
LNK/5
For 450i Series
Red/ Green/
Orange
(bi-colored for
10/100/1000)
Ethernet link
Ethernet link
Flashes during data transfer.
10Base-T : Red
100Base-T : Green
1000Base-T : Orange
For 450 Series
Green
Ethernet link
Ethernet link
Continuously lit when link is
present.
