TMN-51T Hardware User Guide
7
TMN-51T (RS485 interface)
For TMN-51T with RS485 interface, a RS232 to RS485 converter is necessary to convert
the signals from TMN-51T into RS232 standards that are recognized by the PC.
Connecting TMN-51T to Device
TMN-51T (RS232 interface)
For a basic configuration in which TMN-51T is connected to a device via RS232 port,
transmit, receive and ground pin must be connected. In situation where the device is
utilizing hardware flow control, Ready To Send (RTS) and Clear To Send (CTS) have to
be connected as well. TMN-51T with RS232 interface supports hardware flow control.
TMAS GPRS Gate
DB9
RS232
DB9
RS232 to
RS485
converter
RS485
Data +
Data -
TMAS GPRS Gateway
Device with
RS232 port
Transmit
Receive
Ground
CTS
RTS
RS232
2 ADC Channels:
0-3.3V or 4-20mA