WITURA TECHNOLOGY SDN BHD
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WT-1673 GSM Power Switch User Manual V1.3
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INTRODUCTION
The GSM Switch operates on the GSM cellular network and allows owner to control an Equipment from a cell
phone. The cell phone switch is factory pre-wired and once a SIM card has been installed and functional, all
the network and power LEDs are visible from on the exterior of the enclosure. You only need to insert the SIM
card, plug the unit into a main AC power socket and then plug in the Equipment into the Universal socket on
the face of the unit. Now you are ready to control an Equipment by just a free telephone call to switch the
device ON and another to switch the device OFF
The GSM remote switch will turn on by calling it. From any phone, it don't use any minutes because it doesn’t
answer the phone. The unit will automatically reject the call and trigger the 30A relay to switch on the
equipment. One call switch the equipment ON permanently, another call will switch OFF the equipment
permanently.
The system is fuse protected at both high and low voltages. The system has an on board power supply and
will even report if the power fails at the location of the Hanger.
As an additional safety features, you can also programme to ignore calls if it does not recognize the caller ID.
This means only the phone numbers which you program into the numbers can control ON / OFF an equipment
now. If the number did not register into the white list, the unit will reject the call and will not switch on the
equipment. Customizing and programming is simple – it’s done by send it text messages.
By activate the safety features, the 30A output relay can be switched ON or OFF by calling its cell phone
number and by sending an SMS command, there is still no call charges incurred when dialling the unit as it will
recognize an authorised telephone number calling it and reject the call without answering.
Once you active the safety features, the GSM switch system will support timer function, the user can set
schedule to turn on / off the switch. For example, put your equipment on a schedule. “Turn off in 5 minutes”,
“turn on at 17:00, “turn on 1 year later”
Another important feature for timer is to remind the owner to monitor the SIM Card expiry date. User can
instruct the unit to send the SMS to the user to keep the SIM card active before expiry dates.
The system using CE and FCC approved industry internal power supply connected on board. A backup lithium
battery can power up at least 8 hours and will sent a power down or power restored alerts in the event of any
circuits power failure
The user also can download the FREE apps from Android and IOS stores as their easy monitoring and control
tools. Just one touch on the apps, user smart phone will sent the SMS text commands to the unit. The users
don’t need to remember the commands code. .
