SONOVE M2-M - Serial Interface (RS 232); Serial Interface (RS 422;485); USB Touch (Type B)

M2-M Operating Manual | Mounting and Connecting
M2-M_Operating_Manual_2.0.0
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3.2.3 SERIAL INTERFACE (RS 232)
The monitor is equipped with a RS 232 D-SUB socket. The following table lists the port assignments:
Pin Assignment
Pin
Signal/ Description
Pin
Signal/ Description
Figure 11: D-SUB socket
Pin 1
Not connected
Pin 6
Not connected
Pin 2
TxD
Pin 7
Not connected
Pin 3
RxD
Pin 8
Not connected
Pin 4
Not connected
Pin 9
Not connected
Pin 5
GND
3.2.4 SERIAL INTERFACE (RS 422/485)
The monitor is equipped with a RS 422/485 D-SUB socket. The following table lists the port assignments:
Pin Assignment
Pin
Signal/ Description
Pin
Signal/ Description
Figure 12: D-SUB socket
Pin 1
Not connected
Pin 6
Not connected
Pin 2
RxD-
Pin 7
RxD+
Pin 3
TxD+
Pin 8
TxD-
Pin 4
Not connected
Pin 9
Not connected
Pin 5
GND
INFORMATION
Fasten the fixing screws for adequate connection!
Ensure high quality of cable to avoid signal interference!
3.2.5 USB TOUCH (TYPE B)
The monitor is equipped with an USB Touch (Type B) socket for touch connection. The following table lists the
port assignment:
Pin Assignment
Pin
Signal/ Description
Pin
Signal/ Description
Figure 13: USB (Type B) socket
Pin 1
VCC (Voltage Supply +5V)
Pin 3
Data +
Pin 2
Data -
Pin 4
GND
INFORMATION
Fasten the cable’s fixing screws for adequate connection!
Ensure high quality of cable to avoid signal interference!