TMN-51T Hardware User Guide
6
Below is a description of the 4-pin Micro Fit 3.0 power supply socket for TMN-51T
Pin
Description
1
6-40 VDC
2
Ground
3
Analog input 0
4
Analog input 1
TMN-51T contains 2 channels each capable of supporting 4-20mA analog input.
LED Blinking Sequence
The red LED blinking sequence represents the state where TMN-51T is currently in.
Below is a table for the available states and the corresponding blinking sequence.
TMN-51T state
Red LED blinking sequence
Upon power up
Start blinking after 4 second
Not connected to GPRS or GSM
Blink every 1 second
Connected to GPRS
Double-blink every 4 second
Data transfer via GPRS
Turned on and flicker
Connected to GSM (modem mode)
Blink every 3 second
In configuration mode with Center
Manager
LED turned off
Connecting to PC
For configuration, TMN-51T has to be connected to a computer. The diagrams below
show all the connection setup for TMN-51T with RS232 and RS485 (optional).
TMN-51T (RS232 interface)
To connect TMN-51T with RS232 interface, use the RS232 cable provided. Alternatively
an USB to serial converter can be used for connection.
TMAS GPRS Gate
DB9
RS232
DB9
