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2. GSM requirements
To ensure the proper operation of the telemetry module, it is necessary to use the
properly configured SIM card. The card should be delivered by the GSM operator who
provides the GPRS and/or SMS transmission services.
Except the capability of operation in GPRS mode, it is also necessary to register the
card in an APN with static IP addressing. The unique IP address assigned to the SIM
card will be the address identifier of the telemetry module in the APN. It enables the
transmission to other telemetry modules and/or to the servers operating within the
same APN structure.
It is absolutely necessary to ensure the proper GSM signal in the area where the
module antenna is to be installed. Using the module in the places with poor GSM signal
conditions may lead to the disturbances of the transmission as well as the loss of data,
which increase operating costs as well.
3. Design of the module
3.1. Layout of MT-703 elements
3.2. The resources
Hardware resources of the MT-703 module:
DI - binary
inputs
2 - with counting and powering of potential-free contact capabilities
1 - with alarm on opening the module cover
AI - analog
inputs
2 - 0-3.3 VDC, with option of powering the measured circuit
(3.3 VDC)
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