7
RS-485/422 port:
Serial port
PIN
PIN define
COM2
1
R-
2
R+
3
GND
4
T-/D-
5
T+/D+
COM1
6
R-
7
R+
8
GND
9
T-/D-
10
T+/D+
【
LED Indicator
】
The LED indicator on the front panel of IT-SDS-302-T-2D 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 statue LED
LED
Indicate
Description
PWR
ON
Power is connected/Function natural
OFF
Power is disconnected or function
nu-natural
LINK
ON
Ethernet port connect successfully
Flashing
Ethernet port has data transmission
OFF
Ethernet port connect unsuccessfully
RX1/2
OFF
None data receive
Flashing
In receiving data
TX1/2
OFF
None data transmit
Flashing
In transmitting data
