WSP-SM40 Rev. 1.2
http://www.woosim.com
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The WSP-SM40 printer has a UART(RS-232C or TTL) interface and is connected by means of a 5
pin mini USB socket.
In the following table, the signals present on the Mini- USB socket are listed:
Pin No. Name
Direction
Function
1
TxD
Output
Transmit Data
2
RxD
Input
Receive Data
3
CD
-
Cable Detect
4
NC.
-
-
5
GND
-
Ground
NOTE :
●
If you connect the printer interface cable is converted to UART mode.
●
When data receiving, when it removes the communication cable, it loses a data.
