11
www.buenoptic.net
off
ttyS3
serial
not
receiving data
3.2 Ethernet & GSM LED(803)
No
号
Sta
态
明
明
1
Eth2 LINK
on
ETH2 connected
off
ETH2 unconnected
2
Eth2 ACT
flas
hes
ETH2 data sending
off
ETH2
data
not
sending
3
Eth3 Link
on
ETH3 connected
off
ETH3 unconnected
4
Eth3 ACT
flas
hes
ETH3 data send and
receive
off
ETH3 not send or
receive
5
GSM
UART TX
flas
hes
GSM UART sending
data
off
GSM
UART
not
sending data
6
GSM
UART RX
flas
hes
GSM
UART
receiving data
off
GSM
UART
not
receiving data
7
GSM LED
flash
es
GSM working
off
GSM not working
1
2
ttyS3 TX
on
ttyS3
serial
sending
data
off
ttyS3
serial
not
sending data
1
3
ttyS4 RX
on
ttyS4 serial receiving
data
off
ttyS4
serial
not
receiving data
1
4
ttyS4 TX
on
ttyS4
serial
sending
data
off
ttyS4
serial
not
sending data