General Information

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Technical Specification
The AG-831 is a Gateway dedicated to work witch central controlling and monitoring systems. It support two-way communication with server trough LTE/GSM or Ethernet. It has inbuilt timer with 10 ON/OFF schedule within 24h, auto configurable sunrise/sunset timer based on geolocation and has 3 independent relays. Every output can be controlled by separate time schedule. Gateway has isolated Modbus RTU interface to communicate with energy meters, PLCs and other Modbus devices. Can be configured by: internal website, SMS, string from server and configuration file loaded in predefine URL. For accurate time and location it has GPS and RTC. This is updated version of AG-811.
LTE and GSM connectivity
GNSS for accurate time and location
3 independent NO outputs
Opto-isolated Modbus RTU
2 opto-isolated digital inputs
SMS alert and with mobile number filtering
Timer with astronomical timer
Internal website for configuration
LAN with PoE
Output status control by string from server and by SMS
Modbus archive data in internal memory
Aluminium compact size casing
35mm DIN rail mounting
Hardware informations
Top view
Side view
Connectors
The AG-831 has an RJ45 on the top with LED indicators and two SMA female sockets. There is also a two pluggable sockets on the bottom of the gateway.
Power supply
The device is powered by external DC power supply. Minimum supply voltage is 8V and maximum 36V. Preferred 24V. Select the power supply requirement according to the below table. The device had protection against high voltage and reverse polarity. High voltage will blow inbuilt fuse. Reverse voltage will not damage device – the device will simply not work on reverse voltage.
Supply Voltage
Minimum A requirement
Suggested power supply rating
12V
1A
1.5A
15V
1A
1.5A
24V
0.5A
0.7A
32V
0.5A
0.5A
PoE
The Gateway can also be powered via PoE in the range of 8-36V using unused pairs of wires in the LAN cable. Below is the pinout of the RJ45 socket.
Pin number
Function
Comment
1
RX+
Data
2
RX-
Data
3
TX+
Data
4
DC+
Power supply positive
5
DC+
Power supply positive
6
TX-
Data
7
DC-
Power supply negative
8
DC-
Power supply negative
LED indicators
The device has 10 LED indicators on the antenna side. On antenna side are power (green) and activity (yellow) indicator. The behaviour of activity LED is according to the table.
LED
Function
Behaviour
POWER
Normal working condition
permanent ON
ACT
Normal working condition
blinking every 1 second
LTE
LTE/GSM connection
blinking if LTE/GSM active
Serial
RX and TX data indication of RS485
blinking on data transfer
Inputs
Input 1 and 2 high level indication
ON if input high
Outputs
Out 1-3 ON
ON on output ON