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2.3 Serial & IO & Power Pinouts
2.4 LED Indicators
LED
Indication
Power &
STATUS
System
Status
Cellular
5G
Status
Link Indicator
(Orange)
Ethernet
Port
Rate Indicator
(Green)
RS232
PIN
/RS485
1
---
2
GND
GND
3
---
4
---
5
---
6
---
7
RXD/B
8
TXD/A
Status
Description
Off
The power is switched off
Orange
Static: The system is startup
Green
Static: The system is running properly
Red
Static: The system goes wrong
SIM card is registering or fails to register
Off
(or there are no SIM cards inserted)
Blinking slowly: SIM card has been registered and
is ready for dial-up
Blinking rapidly: SIM card has been registered and
Green
is dialing up now
Static: SIM card has been registered and dialed up
to 5G network
Static: SIM card has been registered and dialed up
Orange
to 4G network
Off
Disconnected or connect failure
On
Connected
Blinking
Transmitting data
Off
100 Mbps mode
On
1000 Mbps mode
DI
DO
Power
IN
---
---
---
---
---
---
(-)
---
---
(+)
---
COM
---
---
OUT
---
---
---
---
---
---
---
Description
Digital Input
Ground
Negative
Positive
(9-48V)
Common
Ground
Digital Output
RS232-RXD
RS485-B
RS232-TXD
RS485-A
6
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