TMN-51T Hardware User Guide
8
TMN-51T (RS485 interface)
For TMN-51T with RS485 interface, max of 32 remote devices can be connected.
TMN-51T Analog Inputs
TMN-51T supports 2 channels of 4-20mA analog inputs. The 2 analog inputs are located
at the 4 pin Micro Fit 3.0 power supply socket as shown in Figure 4 below.
Figure 4: Analog Inputs
To insert the analog signal to TMN-51T, use TMN-51T power adaptor‟s 4 pin Micro Fit
3.0 socket connector as shown in Figure 5. The additional 2 empty holes are for the
analog input.
Analog Inputs
TMAS GPRS Gateway
. . . . . .
Meter 1
Meter n
RS485
Data -
Data +
2 ADC Channels:
0-3.3V or 4-20mA
