Securitex 3G Remote Controller Terminal & SMS controller

0-5VDC. 0-20mA. 4-20mA. temperature & humidity


APPROVED BY IMDA SINGAPORE Registration number: S0232-17


What is Securitex Industrial Remote Controller SIRC272W-IG 3G Remote Controller Terminal.



The 3G M2M RCT (Remote Control Terminal) SIRC272W-IG 3G system that is incorporated with the QUECTEL UC15 module (Or WCDMA/CDMA2000) and ARM® Cortex™ 32 Bit RISC Core. It is a multi Isolation I/O port remote control terminal unit. It is use mainly for remote control of critical off site equipment and Remote Data Acquisition, Base Transceiver Stations Monitoring (BTSM), Access control, ATM monitoring, Generator Status Monitoring, Pump Station Monitoring, Weather Station Monitoring, Data Centre temperature/ humidity and power status monitoring and many other applications.


The SIRC272W-IG 3G M2M RCT is designed as a cost effective remote control system alert device. It monitors up to 8 digital inputs and 4 solid relay outputs and 6 Analogue inputs and Power Status, onsite Temperature and Humidity. All of the inputs and outputs are isolated. User-defined SMS is sent to pre-configure mobile phone numbers when a pre-defined alarm condition happen. The pre-configured mobile phone numbers can belong to technicians or engineers or anyone who are responsible in handling corresponding alarms and with the aid of this 3G M2M RCT, the alarm condition brings attention to in-charge personnel immediately. It also allows those mobile phone users if authorize to take corrective action they can trigger any relay output by using SMS to activate emergency equipment to mitigate the emergency condition, [example if temperature rises to a certain preset level at a Data center is detected the SMS receiver can turn on the standby air con or ventilation to cool down the premises etc]. The output can be connected with alarm indication device, such as alarm, and others. Moreover the 3G M2M RCT can be used as a smart PLC (Programmable Logical Controller) by the interlock function and be used as a remote access control, the authorized users can open the gate or turn on the machine with a free of charge call at specified time. The 3G M2M RCT supports Modbus TCP, TCP/UDP protocol, data transparent transmission via RS232 /RS485 ports over GPRS/3G network.

Wide coverage of
3G networks and the provision of GPRS connectivity have made it possible to interconnect systems wirelessly. SECURITEX SIRC272W-IG exploits the benefits of this wireless technology and gives customers total control of their remote units from any part of this world. All-in-all SECURITEX SIRC272W-IG is an advanced effective and an economical solution for fulfilling all customer needs of remote monitoring and control applications.


Some of the application areas could be (the list is however not limited to these application areas)

Security systems. Irrigation & fire alarm systems. Building surveillance and control. Home & garden automation projects. Heating, lighting & climate control Remote monitoring and device/equipment control. Medical equipment monitoring. Safety System monitoring and control. Plant and Refinery systems control & monitoring and Data Center etc.



Reference Scope

DC Power supply

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

Power consumption

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

3G Frequency

3G(WCDMA or CDMA2000)

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


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, 1 RS232, 1 RS485 with ±15KV ESD Protection.



Digital Inputs

8 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

6 analogUE 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

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

Power Outputs

2 Ports, for external device (Transducers or detectors or sensors).

Memory Capacity

Internal TF Card inside, can save 100000 historical events.

Backup Battery

3.7V 1200mAH, standby 8-16hours.

Temperature range

-10-+70 °C

I/O Isolation


Power input/Out

Over voltage protection and phase-reversal protection

Humidity range

Relative humidity 95% (condensation free)

Exterior dimension

202mm*113mm*31mm(external Maximum size)

Net Weight

1000 g



International Customers:
We ship directly worldwide using major shipment carriers, such as DHL, UPS, Federal Express or EMS Postal service etc. We even hand delivered all the way to the vessel if permissible like if your vessel is dock in
Singapore port for stop over or repair work.

If you would like to order or for any inquiries,
just send us an email with your order information and system request


@ 1997 -2020 Securitex Electronic Systems Engineering. All Rights Reserves.
Securitex Electronic Systems Engineering
Block 9010 Tampines St 93 #04-145 Tampines Industrial Park A Singapore 528844 Tel: +65 67852171 Fax: +65 65850107