USR-M511User Manual Technical Support:
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Jinan USR IOT Technology Limited
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6
1.2.2. LED Indicator
Indicator
Status
PWR
On: Power on
Off: Power off
WORK
On: Working
Off: Not working
TX
On: Sending data to serial
Off: No data sending to serial
RX
On: Receiving data from serial
Off: No data receiving from serial
Figure 4 Hardware Indicator
1.2.3. DB9 Pin definition
Pin Number
RS232
RS422
RS485
1
2
RXD
RX+
3
TXD
TX-
B-
4
5
GND
6
7
RTS
TX+
A+
8
CTS
RX-
9
Figure 5 DB9 Pin definition
1.2.4. DB9 Pinboard
We provide DB9 pinboard for user to use terminal connection.
