Shenzhen
3onedata Technology Co., Ltd
7
www.3onedata.com
GW1104/GW1108 series RS-485/422 provides separation distance 3.81mm, 4 bit industrial terminal block. The
PIN defines is as follows:
GW110X series RS232 adopts RJ45 connector, the PIN defines is as follows:
3.1.3 LED Indicator
The LED indicator on the front panel of Modbus gateway series can indicate the running system and the operation
status, which makes it easy to find and solve problems, the specific meaning of indicator are shown in the table.
System LED statues
LED
Indicator
Description
PWR
ON
Power is connected/Function natural
OFF
Power is disconnected or function nu-natural
RUN
Flashing
System Running steadily
OFF
System did not run or running un-steadily
ON
System Running un-steadily
LINK
ON
Ethernet port connect successfully
Flashing
Ethernet port has data transmission
OFF
Ethernet port connect unsuccessfully
RX
(
1/2/4/8
)
OFF
None data receive
ON/Flashing
In receiving data
TX
(
1/2/4/8
)
OFF
None data transmit
ON/Flashing
In transmitting data
PIN
RS-485 PIN define
RS-422 PIN define
1
D+(A)
T+
2
D-(B)
T-
3
/
R+
4
/
R-
PIN
PIN define
Description
1
TXD
Transmit data
2
RXD
Receive data
3
CTS
(
Optional
)
Clear to send
6
RTS
(
Optional
)
Request to send
8
GND
Signal ground
1
8