4G IOT RTU S271 4DI/DO 4AI 1TH for Water Plant Data Acquisition

DC Power supply

Standard adapter: DC 12V/1.5A  Range 9-36VDC

Power consumption

Standby:12V/70mA;  Working Max.: 12V/300mA

GSM/3G Frequency

850/900/1800/1900Mhz/3G (UMTS/HSDPA)

Transmit power

Class 4 (2W) at EGSM 900 and EGSM 850

Class 1 (1W) at GSM 1800 and GSM 1900

GPRS connectivity

GPRS multi-slot class 10

GPRS Data Transmission

GPRS data downlink transfer: max. 85.6 kbps

GPRS data uplink transfer: max. 42.8 kbps

Coding scheme: CS-1, CS-2, CS-3 and CS-4

TCP/IP stack

TCP,UDP

SIM interface

Supporting 3V SIM Card

External antenna

SMA Antenna interface, 50 Ohm

Alarm Phone Numbers

10 telephone numbers for SMS Alert and Dial while alarm.

Serial Interfaces

1 USB Port with ±15KV ESD Protection.

Protocols

SMS, GPRS UDP,TCP, Modbus TCP

Digital Inputs

2/4 Digital inputs, dry contact or wet contact. Logic level: 0~0. 5V or short circuit treated as close, +3~30V or open circuits treated as open. One of the input can be used as counter, sampling frequency is 1Khz;

Analog Inputs

2/4 analog inputs, 12bits resolution, supports 0-5V, 0-20mA, 4-20mA output transducers;

Temp.&Hum Inputs

AM2301, Range: Temperature: -40°C to +80°C, Humidity: 0~100%RH;

Relay Outputs

2/4 Solid Relay outputs, Rated Capacity: 5A/30VDC,5A/250VAC

Power Outputs

1 Port, for external device (Transducers or detectors or sensors).

Memory Capacity

Internal Memory inside, can save 200 historical events.

Backup Battery

3.7V 1200mAH, standby 8-16hours.

Temperature range

-10-+70 °C

I/O Isolation

Electromagnetic

Power input/Out

Over voltage protection and phase-reversal protection

Humidity range

Relative humidity 95% (condensation free)

Exterior dimension

168mm*113mm*26mm(external Maximum size)

Net Weight

1000 g

Power

RTU status indicator, LED ON when switched RTU on. OFF when switched RTU off.

Alarm

Alarm Indicator, alarm will ON and flick quickly. Normally is OFF;

Arm

Arm/Disarmed Indicator, Arm is ON, disarmed is OFF.

Run

RTU running status indicator, ON or OFF stands for RTU halted, flicks slowly stands for RTU running.

GSM/3G module indicator. Flicks quickly(less than 1second per time) stands for searching GSM/3G Network or no SIMCard inside or SIMCard connection is not good or cannot register to GSM/3G network successful. Flicks slowly (about 1sencond per time)stands for GSM/GPRS/3G stands for registered successful and GSM/3G Module standby.

Power Connector Definition

DC IN+

External DC Power input port, Connect to 1.5A@9~36V DC power, positive electrode.

DC IN-

External DC Power Input port, contact to negative electrode

DC Out+

Power source output port, positive electrode. Provides power from RTU to external transducers or sensors or detectors. The output voltage and current is the same as the power from DC IN inputs.

DC Out -

Power source output port, Negative electrode.

DIP Switch Definition

For S270, 2 and 3 switches are useless.

SET/RUN

For setting the RTU Mode is in Configuration Mode or Run mode.

Switch it to upside is Set Mode, under this mode, the user can use PC Configurator via USB cable to configure the RTU Parameters or Read Parameter settings.

Switch it to Downside is Run Mode, under this mode, the RTU is in Running mode.

0/V/mA

The 1^st channel of analog input type switch. If not use this channel then no matter is upside or downside.

Switch it to upside stands for the 1^st analog input should connect to 0~5V voltage output transducer.

Switch it to Downside stands for the 1^st analog input should connect to 0~20mA or 4~20mA current output transducer.

1/V/mA~3/V/mA

The 2^nd ~4^th channel of analog input type switch. If not use this channel then no matter is upside or downside.

Switch it to upside stands for the related analog input should connect to 0~5V voltage output transducer.

Switch it to Downside stands for the related analog input should connect to 0~20mA or 4~20mA current output transducer.

Analog Input Definition

Analog inputs, 12bits resolution, supports 0-5V, 0-20mA, 4-20mA output transducers, please refer to abovementioned DIP Switch Definition to connect the correct transducers.

For S270, 2+/2- and 3+/3- ports are useless.

0+/0-

The 1st Channel Analog input. + stands for positive electrode, - stands for negative electrode.

1+/1- ~ 3+/3-

The 2^nd ~4^th Channel Analog input. + stands for positive electrode, - stands for negative electrode.

Digital Input Definition

Dry contact or wet contact. Logic level: 0~0. 5V or short circuit treated as close, +3~30V or open circuits treated as open. One of the input can be used as counter, sampling frequency is 1Khz.

For S270, 2/3 and GND ports are useless.

0

The 1st digital input, positive electrode. 

1~3

The 2^nd ~ 4^th digital input, positive electrode.

GND

GND for digital inputs, negative electrode.

ATN Port Connector Definition

ATN

GSM/3G Antenna connector, 50Ohm, SMA female.

USB Port Connector Definition

USB

USB port, for configuration and upgrading firmware and exporting historical data;

Temperature&Humidity Sensor Port Definitions

T/H

Temperature & Humidity sensor AM2301 inputs. Measurement Range: Temperature: -40°C to +80°C, Humidity: 0~100%RH.

Digital Solid Relay Output Connector Definition

Solid Relay inside for outputs, Rated Capacity: 5A/30VDC,5A/250VAC.

For S270, 2+/2- and /3+/3- ports are useless.

0+/0-

The 1st Channel Solid Relay Output. + stands for positive electrode, - stands for negative electrode.

1+/1- ~ 3+/3-

The 2^nd ~ 4^th Channel Solid Relay Output. + stands for positive electrode, - stands for negative electrode.