ZXSDR BS8900 Hardware Manual
Indicator
Color
Meaning
Flash
Status
Descrip-
tion
broken.
Recycle
again per
15 seconds.
Off when
an error
occurs on
the 61.44M
clock.
SCS
Green
System
clock
running
status
indicator
FPGA
control
indicator
, three
status: on,
quick flash
and off.
On when
the system
clock is
normal.
Quickly
blinks (on
for 0.125
seconds and
off for 0.125
seconds)
when a
10ms clock
failure
occurs.
Off when a
50CHIP
clock failure
occurs.
CST
Green
Communi-
cation sta-
tus indica-
tor between
CPU and
MMC
Controlled
by CPU,
EPLD trans-
parent
transmis-
sion
On when the
communi-
cation be-
tween CPU
and MMC is
normal.
Off when
CPU fails to
communi-
cate with
MMC.
RUN
Green
Running
Indicator
MMC control
indicator
Blinks in
5 Hz flash
when the
module is
being pow-
ered on.
Blinks in
1 Hz flash
when the
module runs
normally.
On when
the mod-
ule is start-
ing the ver-
sion after
download-
ing it suc-
cessfully.
Off when
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